Jumo ecotrans ph03 инструкция на русском

Related Manuals for JUMO ecoTRANS pH 03

39

9 Calibration

9.1 General information

The zero point (intercept) and slope of pH sensors stray from copy to copy. During the service life of the sensor, up to the time it must be replaced by a new sensor, the zero point and slope change. To allow for precise measurements, the transmitter must be adjusted

(calibrated) to the current sensor parameters. The calibration is performed using buffer solutions.

Only the zero point needs to be calibrated for redox sensors.

9.1.1 When is calibration required?

The electrochemical sensors should be cleaned and the transmitter should be calibrated at regular intervals (depending on the measuring medium)!

With the correct wiring of device and sensor, and correct configuration of the device, a measurement without calibration should be possible.

If this is not the case, influencing factors such as short circuit, open circuit, EMC and flow conditions should also be considered.

9.2 Activating and starting calibration mode

During the calibration process, the display flashes.

The analog outputs respond as they were calibrated on the USER LEVEL / ANALOG OUTPUT x /

FOR CALIBRATION.

The response of the relay depends on the configuration of the switching output!

40

Calibration can be cancelled at any time with the EXIT key. Old calibration data will not be lost.

Calibration is performed using the instrument keys.

The zero point and slope of a sensor can also be entered manually. This should only be done in exceptional cases. Some sensors come with a test report that specifies the zero point and slope. These values simply provided documentation that the sensor was in proper condition upon delivery. Since these values change during storage, they are not suitable for manual entry. We always advise performing calibration with buffer solutions.

The timeout function is not active during calibration!

9.2.1 Starting calibration from the calibration level «CALIB»

Use the menu to switch to the calibration level (see

Section 7.4 «Selecting levels», page 20 and Section

7.8 «Calibration level (CALIB)», page 24).

✱

P

Press and hold (for more than 2 sec) / then select CALIB.

✱

P

Press and hold (for less than 1 sec) / then enter code 110.

✱ Confirm with

P

,

continue with Section 9.4 «One-point or two-point calibration», page 43.

9.2.2 Starting calibration with the hot key (rapid access)

Activation of the calibration mode by rapid access must be previously enabled:

P

> Press and hold for 2 seconds / Set ADMIN / CAL /

CA.LVL to 1.

✱ Press the

P

and keys,

continue with Section 9.4 «One-point or two-point calibration», page 43.

41

9.3 Canceling calibration and error messages

Calibration can be cancelled at any time with the EXIT key. Old calibration data will not be lost.

During the calibration process, the transmitter calculates the electrode parameters zero point and if applicable slope. If the calculated values fall outside the permissible parameter limits, an error message is generated.

For the permitted value ranges of parameters NULL and SLOPE see

Section 8.1.1 «Measurement input — main value (submenu «PH»)», page 26.

9.3.1 Zero point error

Parameter limits for NULL have been violated.

9.3.2 Slope error

Parameter limits for SLOPE have been violated.

9.3.3 General error during calibration

42

The parameter limits for NULL and SLOPE have been violated and/ or the two calibration points Ref.1 and Ref.2 are too close to each other.

For two-point calibration of a pH sensor, the minimum spacing is

2 pH.

For two-point calibration of a redox sensor, the minimum spacing is

2 mV.

The greater the spacing, the more accurate the calibration.

9.3.4 Acknowledging errors

✱ Press the

P

keys or EXIT.

The error message is deleted.

The faulty parameters NULL and/or SLOPE are not saved.

The instrument continues working with old calibration data.

9.3.5 Additional measures

✱ Check the quality and condition (age) of the buffer solutions.

✱ Check whether the sensor is dirty or needs to be replaced.

✱ Check whether the sensor plug is moist or the wiring is faulty.

✱ Observe the minimum spacings for buffer or reference values.

9.4 One-point or two-point calibration

For one-point calibration, the transmitter is only adjusted to the zero point of the sensor.

In two-point calibration the transmitter is adjusted to both the zero point of the sensor and its slope. We expressly recommend twopoint calibration!

9.4.1 Selecting one-point calibration

Select CAL I-PT.

For more details see Section 9.5.1 «One-point calibration (zero point)», page 44.

43

9.4.2 Selecting two-point calibration

Press the key and select CAL 2-PT.

For more details see Section 9.5.2 «Two-point calibration (zero point and slope)», page 45.

9.5 Calibrating a pH measurement chain

9.5.1 One-point calibration (zero point)

✱ Confirm the selection with

P

.

Display or editing option of the buffer temperature.

✱ Confirm the selection with

P

.

The first reference value is then measured.

✱ Wait until the measurement value has stabilized.

Confirm the measurement value with

P

.

44

Flashing

✱ Enter the actual buffer value with

or and confirm with

P

.

The calculated zero point of the measurement chain appears.

✱ Accept the value with

P

or press

EXIT

to cancel the calibration.

The instrument goes into measurement mode.

If an error message appears, see Section 9.3

«Canceling calibration and error messages», page 42.

9.5.2 Two-point calibration (zero point and slope)

Calibrate zero point and slope.

The buffer solutions (reference solutions) used for calibration must differ by at least 2 pH!

During the calibration, the temperature of the two buffer solutions must be identical and remain constant!

45

✱ Confirm the selection with

P

.

Display and editing option of the buffer temperature.

✱ Confirm the selection with

P

.

The first reference value is then measured.

✱ Immerse the measurement chain in the first buffer (for example pH 7.00)

✱ Wait until the measurement value has stabilized.

Confirm the measurement value with

P

.

Flashing

✱ Enter the actual buffer value with

or and confirm with

P

.

46

✱ Remove the measurement chain from the first buffer and rinse with distilled water.

✱ Immerse the measurement chain in the second buffer (for example pH 4.00)

✱ Wait until the measurement value has stabilized.

Confirm the measurement value with

P

.

Flashing

✱ Enter the actual buffer value with

or and confirm with

P

.

The calculated zero point (top line) and the calculated slope (bottom line) appear.

✱ Accept the values with

P

or press

EXIT

to cancel the calibration.

The instrument goes into measurement mode.

If an error message appears, see Section 9.3

«Canceling calibration and error messages», page 42.

47

9.6 pH antimony measurement chain

Antimony measurement chains are calibrated similarly to «normal»

pH measurement chains, see Section 9.5 «Calibrating a pH measurement chain», page 44.

9.7 Redox measurement chain

9.7.1 General information

The instrument offers two calibrating options for adjusting it to the redox measurement chain.

— One-point calibration

If «mV» was configured as UNIT.

— Two-point calibration

If «%» was configured as UNIT.

The display flashes during calibration.

The analog outputs respond the same way as on

USER LEVEL / ANALOG OUTPUT x / FOR

CALIBRATION.

The response of the relay depends on the configuration of the switching output!

)

9.7.2 One-point calibration (recommended calibration)

Calibration of the zero point.

✱ Confirm the selection with

P

.

✱ Rinse off the measurement chain with distilled water or clean if necessary (see operating instructions for electrode).

✱ Immerse the measurement chain in the test solution (e.g. 468 mV).

48

The reference value is then measured.

✱ Wait until the measurement value has stabilized.

✱ Confirm the measurement value with

P

.

Flashing

✱ Enter the actual buffer value with

or and confirm with

P

.

The calculated zero point of the measurement chain appears.

Accept the value with

P

or press

EXIT

to cancel the calibration.

The instrument goes into measurement mode.

If an error message appears, see Section 9.3

«Canceling calibration and error messages», page 42.

49

)

9.7.3 Two-point calibration

In this type of calibration the display range can be scaled freely from

0 to 100%.

Example:

A span of -10 mV … +1000 mV can be scaled to 0 … 100% werden.

The zero point can fall within the range of

-999 … +999 mV.

Two different reference fluids must be used for the calibration. The redox voltage of a measurement solution is not temperature-dependent!

Confirm the selection with

P

.

The first reference value is then measured.

✱ Immerse the measurement chain in the first solution (for example

59 mV)

✱ Wait until the measurement value has stabilized.

Confirm the measurement value with

P

.

Flashing

50

✱ Enter the desired value with

or (for example 20) and confirm with

P

.

✱ Remove the measurement chain from the first solution and rinse with distilled water.

✱ Immerse the measurement chain in the second solution (for example 295 mV).

✱ Wait until the measurement value has stabilized.

Confirm the measurement value with

P

.

Flashing

✱ Enter the desired value with

or (for example 80) and confirm with

P

.

✱ The calculated zero point (top line in mV) and the calculated slope (bottom line) appear.

Accept the values with

P

or press

EXIT

to cancel the calibration.

The instrument goes into measurement mode.

If an error message appears, see Section 9.3

«Canceling calibration and error messages», page 42.

51

10 Analog output

Analog outputs are configured on the user level

(USER) or on the administrator level (ADMIN) in

PH.OUT (pH or redox output) and TE.OUT

(temperature output); see Section 7.5 «User level

(USER)», page 21.

10.1 Behavior of the output signal during calibration

Two options are possible, «Concurrent» and «Unchanged»

(constant).

10.2 Behavior of the output signal in case of error

If one of the following errors occurs, the output signal assumes the

defined status (see Section 10.3 «Output signal in case of error», page 53):

Analog output of pH value / redox voltage with non-active temperature compensation

— Underrange pH value / redox voltage

— Overrange pH value / redox voltage

Analog output of pH value / redox voltage with active temperature compensation

— Underrange pH value / redox voltage

— Overrange pH value / redox voltage

— Underrange temperature

— Overrange temperature

Analog output — temperature

— Underrange temperature

— Overrange temperature

52

10.3 Output signal in case of error

Depending on the configuration, the output signal may assume the

«LOW» or «HIGH» state in case of error.

Output signal nominal

0…20 mA

4…20 mA

0…10 V

2…10 V

Output signal

HIGH

22.0 mA

22.0 mA

10.7 V

10.7 V

Output signal

LOW

0 mA

3.4 mA

0 V

1.4 V

10.4 Output signal when leaving the scaling range

When leaving the scaling range, the output returns a proportional signal up to a defined limit (in compliance with NAMUR NE43). The limits are listed in the table below:

Value below scaling range

0.0 mA

3.8 mA

0.0 V

20.5 mA

20.5 mA

10.2 V

1.8 V

10.2 V

In the scaling range

0…20 mA

4…20 mA

0…10 V

20…0 mA

20…4 mA

10…0 V

2…10 V

10…2 V

Scaling range was exceeded

20.5 mA

20.5 mA

10.2 V

0.0 mA

3.8 mA

0.0 V

10.2 V

1.8 V

10.5 Manual mode of the analog output

For test purposes or startup, a constant analog signal can be generated by the instrument

(see also Section 11.3 «Manual mode of the relay output», page

57).

After a power supply failure, manual mode is deactivated.

53

11 Relay output

11.1 Relay behavior

Depending on the setting, the JUMO ecoTRANS pH 03 monitors a limit value.

11.2 Binary output 1 (submenu «BIN.1»)

Setting options

0

= No function (default setting)

1 = Window contact main value (active inside a window)

2 = Window contact main value (active outside a window)

3 = Max contact main value (normally open (NO), similar to LK7)

4 = Min contact main value (normally closed (NC), similar to LK8)

5 = Window contact temperature (active inside a window)

6 = Window contact temperature (active outside a window)

7 = Max contact temperature (normally open (NO), similar to

LK7)

8 = Min contact temperature (normally closed (NC), similar to

LK8)

9 = Error output (every device error causes the relay to switch)

10 = Calibration timer elapsed

54

Contact function for settings 1 and 5

Hysteresis

HYS.1.

On

Off

Distance

DST.1

Switching point

ALAR.1

Contact function for settings 2 and 6

Hysteresis

HYS.1.

On pH

Off

Distance

DST.1

Switching point

ALAR.1

pH

55

Contact function for settings 3 and 7

Hysteresis

HYS.1.

On

Off

Switching point

ALAR.1

pH

Contact function for settings 4 and 8

Hysteresis

HYS.1.

On

Off

Switching point

ALAR.1

pH

56

11.3 Manual mode of the relay output

For test purposes or when starting up systems, a constant signal can be generated by the transmitter.

Manual mode can be set with parameter: USER / BIN.1 / SIM.1 to

0

1

2

= inactive

= active => LED «K1» is lit

= No manual mode.

Indication of manual mode

About 3

If one of the outputs is in manual mode, this is indicated in the change to process value display by an «S» or «-«.

S The relevant output is in manual mode.

The relevant output is not in manual mode.

1 2 3

1st place Analog output — pH/redox voltage

2nd place Analog output — temperature

3rd place Binary output 1

In the example above, the analog temperature output is in manual mode. No other outputs are in manual mode.

When the user exits manual mode, the output signal immediately assumes the value proportional to the pH value/redox voltage or the temperature process value.

57

After «Supply voltage On» manual mode is always deactivated.

11.4 Behavior of the relay during calibration

The behavior of the relay with the parameter:

USER / BIN.1 / CAL.1 set to

0 = Relay inactive

1 = Relay active

2 = Relay unchanged

(during calibration the relay status remains set to the status that was valid before the calibration process)

11.5 Pulse function of the relay output

The limit comparator is reset after an adjustable «pulse time.» The parameter for this is: USER / BIN.1 / T.PUL1 .

It can be set from 0 = 0 seconds (no pulse function) to 999 = 999 seconds.

LED «K1» is lit red as long as the switching condition is met.

No OFF delay is possible in pulse mode.

58

Triggering condition is longer than pulse duration

Triggering condition

On

Off

Time

Pulse contact

On

Off

Time

Pulse duration

T.PUL1

Triggering condition is shorter than pulse duration

Triggering condition

On

Off

Time

Pulse contact

On

Off

Time

Pulse duration

T.PUL1

59

11.6 Behavior of the relay in case of error

The behavior of the relay can be adjusted with the following parameters:

USER / BIN.1 and ERR.1 set to

0 = Relay inactive

1 = Relay active

2 = Relay unchanged

(«frozen»: the relay status remains set to the status that was valid before the error)

Function pH value redox voltage

Underrange

Overrange

Temperature

Underrange

Overrange

Limit comparator pH/redox voltage without temperature compensation

Limit comparator pH/redox voltage with temperature compensation

Limit comparator temperature

Calibration timer elapsed

Error output x x x x x x x x x x x x x x x x

11.7 Error detection

The relay output is active for the following errors:

Limit comparator for pH value/redox voltage with non-active temperature compensation

— Underrange pH value/redox voltage

— Overrange pH value/redox voltage

60

Limit comparator of pH value/redox voltage with active temperature compensation

— Underrange pH value/redox voltage

— Overrange pH value/redox voltage

— Underrange temperature

— Overrange temperature

Limit comparator — temperature

— Underrange temperature

— Overrange temperature

Calibration timer

— Timeout

61

12 Display and LED messages

12.1 Operating states of JUMO ecoTrans pH 03

Two LED indicate operating states

Instrument status Red LED (top)

Normal mode Off

Error

Initialization

Flashing

Off

12.2 Underrange

Yellow LED (bottom)

On if LC1 is active

On if LC1 is active

Off

Value is below lower measurement range limit (ORP means redox).

12.3 Overrange

Measurement range exceeded (ORP means redox).

12.4 Broken sensor

Broken sensor, wrong or no temperature sensor connected;

see Section 8.1.2 «Measurement input — temperature

(submenu «TEMP»)», page 28.

62

If no automatic temperature compensation or temperature measurement is required parameter SENS.T must be set

accordingly; see Section 8.1.2 «Measurement input — temperature (submenu «TEMP»)», page 28.

12.5 Short-circuit

12.6 Initialization of dependent parameters

After a parameter has been changed, other dependent parameters are automatically changed.

Please check all dependent parameters!

12.7 Calibration timer elapsed

Depending on specifications (for example of the equipment manufacturer), calibration of the measurement chain should be performed.

After a correct calibration, the calibration timer is reset and automatically restarted.

63

13 Operation via setup interface

(1)

(4)

(2)

P

K1

EXIT

(3)

(1) JUMO ecoTRANS pH 03

(2) PC interface line (optional accessory)

(3) JUMO PC setup software, multilingual D / GB / F (optional accessory)

(4) PC or Notebook with USB interface operating system: Windows 2000

®

,

NT

®

4.0 and up, Windows Vista

®

Windows XP

® or Windows

64

13.1 Operation with PC setup program

(1)

(3)

(2)

(1) Navigation tree

The navigation tree provides fast access (double click) to individual setting options.

(2) Diagnostics window

As soon as a connection is established with an instrument, current data is displayed here.

(3) Working area

Clicking the arrow ( ) shows possible settings.

Double clicking the text opens the appropriate editing window.

65

14 Technical data

Inputs

Analog input 1 (pH / redox)

— Electrodes

— Glass or metal electrodes with isolated reference electrode

— Antimony electrode

Measurement ranges for pH / redox

-2 … 16 pH or

-1500 … +1500 mV

Accuracy for pH / redox

± 1% of the measurement range

Analog input 2 (temperature)

— Resistance thermometer Pt100 or Pt1000

The temperature sensor can be connected in a 2-wire circuit.

Measurement display can be switched between °C / °F

Temperature offset for analog input 2

A process value can be corrected by an offset in the range from —

20 … +20°C.

Temperature measurement range

-10 … +150°C or 14 … 302°F

Deviation from characteristic temperature curve

for Pt 100 / Pt 1000:

≤

1.5 K

Outputs

Two analog outputs:

Freely configurable:

0(2) … 10V

10 … (2)0V

R load

R load

≥

2 k

Ω

or

≥

2 k

Ω

or else

66

0(4) … 20mA R load

20 … (4)0mA R load

≤

400

Ω or

≤

400

Ω galvanically isolated from inputs:

Δ

U

≤

30V AC or

Δ

U

≤

50 V DC

Scope of scaling at least 10% of the scope of the measurement range

deviation from the characteristic curve of the output signal

≤

0.075% of the measurement range

Relay output:

Switching contact switching capacity: 8 A, 250 V AC or 8 A, 24 V DC with resistive load contact life: > 100,000 operations at normal load

Key general parameters

A/D converter

14-bit resolution

Sampling time

500ms = 2 measurements / second

Effect of ambient temperature

≤

0.6% / 10 K

Measuring circuit monitoring

Input 1(main value): out-of-range

Input 2 (temperature): out-of-range, sensor short circuit, broken sensor.

In case of error, the outputs assume a defined

(configurable) state.

Data backup

EEPROM

67

Supply

DC 20 … 30 V, residual ripple<5%, power consumption

≤

4 W, with reverse polarity protection.

Operates only on SELV or PELV circuits.

Electrical connection

Screw terminals up to 2.5 mm

2

Operating temperature range

0 … +50°C

Functional temperature range

-10 … +60°C

Storage temperature range

-20 … +75°C

Climatic rating

Rel. humidity

≤

75% no condensation

Enclosure protection (complies with EN 60 529)

IP 20

Electrical safety

Complies with EN 61 010 air gaps and creep zones for

— Overvoltage category II

— Pollution degree 2

Electromagnetic compatibility

Complies with EN 61 326

Interference immunity:To industrial requirements

Interference emission:Class B

Enclosure

DIN rail enclosure made of PC (polycarbonate)

68

Mounting

On DIN rail 35mm x 7.5mm to DIN EN 60 715

Installation position

Any

Weight

Approx. 150g

15 Environment/disposal

Defective instruments can be sent to JUMO for proper disposal.

69

70

JUMO GmbH & Co. KG

Street address:

Moritz-Juchheim-Straße 1

36039 Fulda, Germany

Delivery address:

Mackenrodtstraße 14

36039 Fulda, Germany

Postal address:

36035 Fulda, Germany

Phone: +49 661 6003-0

Fax: +49 661 6003-607

Email: [email protected]

Internet: www.jumo.net

JUMO Instrument Co. Ltd.

JUMO House

Temple Bank, Riverway

Harlow, Essex CM 20 2DY, UK

Phone: +44 1279 63 55 33

Fax: +44 1279 62 50 29

Email: [email protected]

Internet: www.jumo.co.uk

JUMO Process Control, Inc.

6733 Myers Road

East Syracuse, NY 13057, USA

Phone: +1 315 437 5866

Fax: +1 315 437 5860

Email: [email protected]

Internet: www.jumousa.com

39

9 Calibration

9.1 General information

The zero point (intercept) and slope of pH sensors stray from copy to copy. During the service life of the sensor, up to the time it must be replaced by a new sensor, the zero point and slope change. To allow for precise measurements, the transmitter must be adjusted

(calibrated) to the current sensor parameters. The calibration is performed using buffer solutions.

Only the zero point needs to be calibrated for redox sensors.

9.1.1 When is calibration required?

The electrochemical sensors should be cleaned and the transmitter should be calibrated at regular intervals (depending on the measuring medium)!

With the correct wiring of device and sensor, and correct configuration of the device, a measurement without calibration should be possible.

If this is not the case, influencing factors such as short circuit, open circuit, EMC and flow conditions should also be considered.

9.2 Activating and starting calibration mode

During the calibration process, the display flashes.

The analog outputs respond as they were calibrated on the USER LEVEL / ANALOG OUTPUT x /

FOR CALIBRATION.

The response of the relay depends on the configuration of the switching output!

40

Calibration can be cancelled at any time with the EXIT key. Old calibration data will not be lost.

Calibration is performed using the instrument keys.

The zero point and slope of a sensor can also be entered manually. This should only be done in exceptional cases. Some sensors come with a test report that specifies the zero point and slope. These values simply provided documentation that the sensor was in proper condition upon delivery. Since these values change during storage, they are not suitable for manual entry. We always advise performing calibration with buffer solutions.

The timeout function is not active during calibration!

9.2.1 Starting calibration from the calibration level «CALIB»

Use the menu to switch to the calibration level (see

Section 7.4 «Selecting levels», page 20 and Section

7.8 «Calibration level (CALIB)», page 24).

✱

P

Press and hold (for more than 2 sec) / then select CALIB.

✱

P

Press and hold (for less than 1 sec) / then enter code 110.

✱ Confirm with

P

,

continue with Section 9.4 «One-point or two-point calibration», page 43.

9.2.2 Starting calibration with the hot key (rapid access)

Activation of the calibration mode by rapid access must be previously enabled:

P

> Press and hold for 2 seconds / Set ADMIN / CAL /

CA.LVL to 1.

✱ Press the

P

and keys,

continue with Section 9.4 «One-point or two-point calibration», page 43.

41

9.3 Canceling calibration and error messages

Calibration can be cancelled at any time with the EXIT key. Old calibration data will not be lost.

During the calibration process, the transmitter calculates the electrode parameters zero point and if applicable slope. If the calculated values fall outside the permissible parameter limits, an error message is generated.

For the permitted value ranges of parameters NULL and SLOPE see

Section 8.1.1 «Measurement input — main value (submenu «PH»)», page 26.

9.3.1 Zero point error

Parameter limits for NULL have been violated.

9.3.2 Slope error

Parameter limits for SLOPE have been violated.

9.3.3 General error during calibration

42

The parameter limits for NULL and SLOPE have been violated and/ or the two calibration points Ref.1 and Ref.2 are too close to each other.

For two-point calibration of a pH sensor, the minimum spacing is

2 pH.

For two-point calibration of a redox sensor, the minimum spacing is

2 mV.

The greater the spacing, the more accurate the calibration.

9.3.4 Acknowledging errors

✱ Press the

P

keys or EXIT.

The error message is deleted.

The faulty parameters NULL and/or SLOPE are not saved.

The instrument continues working with old calibration data.

9.3.5 Additional measures

✱ Check the quality and condition (age) of the buffer solutions.

✱ Check whether the sensor is dirty or needs to be replaced.

✱ Check whether the sensor plug is moist or the wiring is faulty.

✱ Observe the minimum spacings for buffer or reference values.

9.4 One-point or two-point calibration

For one-point calibration, the transmitter is only adjusted to the zero point of the sensor.

In two-point calibration the transmitter is adjusted to both the zero point of the sensor and its slope. We expressly recommend twopoint calibration!

9.4.1 Selecting one-point calibration

Select CAL I-PT.

For more details see Section 9.5.1 «One-point calibration (zero point)», page 44.

43

9.4.2 Selecting two-point calibration

Press the key and select CAL 2-PT.

For more details see Section 9.5.2 «Two-point calibration (zero point and slope)», page 45.

9.5 Calibrating a pH measurement chain

9.5.1 One-point calibration (zero point)

✱ Confirm the selection with

P

.

Display or editing option of the buffer temperature.

✱ Confirm the selection with

P

.

The first reference value is then measured.

✱ Wait until the measurement value has stabilized.

Confirm the measurement value with

P

.

44

Flashing

✱ Enter the actual buffer value with

or and confirm with

P

.

The calculated zero point of the measurement chain appears.

✱ Accept the value with

P

or press

EXIT

to cancel the calibration.

The instrument goes into measurement mode.

If an error message appears, see Section 9.3

«Canceling calibration and error messages», page 42.

9.5.2 Two-point calibration (zero point and slope)

Calibrate zero point and slope.

The buffer solutions (reference solutions) used for calibration must differ by at least 2 pH!

During the calibration, the temperature of the two buffer solutions must be identical and remain constant!

45

✱ Confirm the selection with

P

.

Display and editing option of the buffer temperature.

✱ Confirm the selection with

P

.

The first reference value is then measured.

✱ Immerse the measurement chain in the first buffer (for example pH 7.00)

✱ Wait until the measurement value has stabilized.

Confirm the measurement value with

P

.

Flashing

✱ Enter the actual buffer value with

or and confirm with

P

.

46

✱ Remove the measurement chain from the first buffer and rinse with distilled water.

✱ Immerse the measurement chain in the second buffer (for example pH 4.00)

✱ Wait until the measurement value has stabilized.

Confirm the measurement value with

P

.

Flashing

✱ Enter the actual buffer value with

or and confirm with

P

.

The calculated zero point (top line) and the calculated slope (bottom line) appear.

✱ Accept the values with

P

or press

EXIT

to cancel the calibration.

The instrument goes into measurement mode.

If an error message appears, see Section 9.3

«Canceling calibration and error messages», page 42.

47

9.6 pH antimony measurement chain

Antimony measurement chains are calibrated similarly to «normal»

pH measurement chains, see Section 9.5 «Calibrating a pH measurement chain», page 44.

9.7 Redox measurement chain

9.7.1 General information

The instrument offers two calibrating options for adjusting it to the redox measurement chain.

— One-point calibration

If «mV» was configured as UNIT.

— Two-point calibration

If «%» was configured as UNIT.

The display flashes during calibration.

The analog outputs respond the same way as on

USER LEVEL / ANALOG OUTPUT x / FOR

CALIBRATION.

The response of the relay depends on the configuration of the switching output!

)

9.7.2 One-point calibration (recommended calibration)

Calibration of the zero point.

✱ Confirm the selection with

P

.

✱ Rinse off the measurement chain with distilled water or clean if necessary (see operating instructions for electrode).

✱ Immerse the measurement chain in the test solution (e.g. 468 mV).

48

The reference value is then measured.

✱ Wait until the measurement value has stabilized.

✱ Confirm the measurement value with

P

.

Flashing

✱ Enter the actual buffer value with

or and confirm with

P

.

The calculated zero point of the measurement chain appears.

Accept the value with

P

or press

EXIT

to cancel the calibration.

The instrument goes into measurement mode.

If an error message appears, see Section 9.3

«Canceling calibration and error messages», page 42.

49

)

9.7.3 Two-point calibration

In this type of calibration the display range can be scaled freely from

0 to 100%.

Example:

A span of -10 mV … +1000 mV can be scaled to 0 … 100% werden.

The zero point can fall within the range of

-999 … +999 mV.

Two different reference fluids must be used for the calibration. The redox voltage of a measurement solution is not temperature-dependent!

Confirm the selection with

P

.

The first reference value is then measured.

✱ Immerse the measurement chain in the first solution (for example

59 mV)

✱ Wait until the measurement value has stabilized.

Confirm the measurement value with

P

.

Flashing

50

✱ Enter the desired value with

or (for example 20) and confirm with

P

.

✱ Remove the measurement chain from the first solution and rinse with distilled water.

✱ Immerse the measurement chain in the second solution (for example 295 mV).

✱ Wait until the measurement value has stabilized.

Confirm the measurement value with

P

.

Flashing

✱ Enter the desired value with

or (for example 80) and confirm with

P

.

✱ The calculated zero point (top line in mV) and the calculated slope (bottom line) appear.

Accept the values with

P

or press

EXIT

to cancel the calibration.

The instrument goes into measurement mode.

If an error message appears, see Section 9.3

«Canceling calibration and error messages», page 42.

51

10 Analog output

Analog outputs are configured on the user level

(USER) or on the administrator level (ADMIN) in

PH.OUT (pH or redox output) and TE.OUT

(temperature output); see Section 7.5 «User level

(USER)», page 21.

10.1 Behavior of the output signal during calibration

Two options are possible, «Concurrent» and «Unchanged»

(constant).

10.2 Behavior of the output signal in case of error

If one of the following errors occurs, the output signal assumes the

defined status (see Section 10.3 «Output signal in case of error», page 53):

Analog output of pH value / redox voltage with non-active temperature compensation

— Underrange pH value / redox voltage

— Overrange pH value / redox voltage

Analog output of pH value / redox voltage with active temperature compensation

— Underrange pH value / redox voltage

— Overrange pH value / redox voltage

— Underrange temperature

— Overrange temperature

Analog output — temperature

— Underrange temperature

— Overrange temperature

52

10.3 Output signal in case of error

Depending on the configuration, the output signal may assume the

«LOW» or «HIGH» state in case of error.

Output signal nominal

0…20 mA

4…20 mA

0…10 V

2…10 V

Output signal

HIGH

22.0 mA

22.0 mA

10.7 V

10.7 V

Output signal

LOW

0 mA

3.4 mA

0 V

1.4 V

10.4 Output signal when leaving the scaling range

When leaving the scaling range, the output returns a proportional signal up to a defined limit (in compliance with NAMUR NE43). The limits are listed in the table below:

Value below scaling range

0.0 mA

3.8 mA

0.0 V

20.5 mA

20.5 mA

10.2 V

1.8 V

10.2 V

In the scaling range

0…20 mA

4…20 mA

0…10 V

20…0 mA

20…4 mA

10…0 V

2…10 V

10…2 V

Scaling range was exceeded

20.5 mA

20.5 mA

10.2 V

0.0 mA

3.8 mA

0.0 V

10.2 V

1.8 V

10.5 Manual mode of the analog output

For test purposes or startup, a constant analog signal can be generated by the instrument

(see also Section 11.3 «Manual mode of the relay output», page

57).

After a power supply failure, manual mode is deactivated.

53

11 Relay output

11.1 Relay behavior

Depending on the setting, the JUMO ecoTRANS pH 03 monitors a limit value.

11.2 Binary output 1 (submenu «BIN.1»)

Setting options

0

= No function (default setting)

1 = Window contact main value (active inside a window)

2 = Window contact main value (active outside a window)

3 = Max contact main value (normally open (NO), similar to LK7)

4 = Min contact main value (normally closed (NC), similar to LK8)

5 = Window contact temperature (active inside a window)

6 = Window contact temperature (active outside a window)

7 = Max contact temperature (normally open (NO), similar to

LK7)

8 = Min contact temperature (normally closed (NC), similar to

LK8)

9 = Error output (every device error causes the relay to switch)

10 = Calibration timer elapsed

54

Contact function for settings 1 and 5

Hysteresis

HYS.1.

On

Off

Distance

DST.1

Switching point

ALAR.1

Contact function for settings 2 and 6

Hysteresis

HYS.1.

On pH

Off

Distance

DST.1

Switching point

ALAR.1

pH

55

Contact function for settings 3 and 7

Hysteresis

HYS.1.

On

Off

Switching point

ALAR.1

pH

Contact function for settings 4 and 8

Hysteresis

HYS.1.

On

Off

Switching point

ALAR.1

pH

56

11.3 Manual mode of the relay output

For test purposes or when starting up systems, a constant signal can be generated by the transmitter.

Manual mode can be set with parameter: USER / BIN.1 / SIM.1 to

0

1

2

= inactive

= active => LED «K1» is lit

= No manual mode.

Indication of manual mode

About 3

If one of the outputs is in manual mode, this is indicated in the change to process value display by an «S» or «-«.

S The relevant output is in manual mode.

The relevant output is not in manual mode.

1 2 3

1st place Analog output — pH/redox voltage

2nd place Analog output — temperature

3rd place Binary output 1

In the example above, the analog temperature output is in manual mode. No other outputs are in manual mode.

When the user exits manual mode, the output signal immediately assumes the value proportional to the pH value/redox voltage or the temperature process value.

57

After «Supply voltage On» manual mode is always deactivated.

11.4 Behavior of the relay during calibration

The behavior of the relay with the parameter:

USER / BIN.1 / CAL.1 set to

0 = Relay inactive

1 = Relay active

2 = Relay unchanged

(during calibration the relay status remains set to the status that was valid before the calibration process)

11.5 Pulse function of the relay output

The limit comparator is reset after an adjustable «pulse time.» The parameter for this is: USER / BIN.1 / T.PUL1 .

It can be set from 0 = 0 seconds (no pulse function) to 999 = 999 seconds.

LED «K1» is lit red as long as the switching condition is met.

No OFF delay is possible in pulse mode.

58

Triggering condition is longer than pulse duration

Triggering condition

On

Off

Time

Pulse contact

On

Off

Time

Pulse duration

T.PUL1

Triggering condition is shorter than pulse duration

Triggering condition

On

Off

Time

Pulse contact

On

Off

Time

Pulse duration

T.PUL1

59

11.6 Behavior of the relay in case of error

The behavior of the relay can be adjusted with the following parameters:

USER / BIN.1 and ERR.1 set to

0 = Relay inactive

1 = Relay active

2 = Relay unchanged

(«frozen»: the relay status remains set to the status that was valid before the error)

Function pH value redox voltage

Underrange

Overrange

Temperature

Underrange

Overrange

Limit comparator pH/redox voltage without temperature compensation

Limit comparator pH/redox voltage with temperature compensation

Limit comparator temperature

Calibration timer elapsed

Error output x x x x x x x x x x x x x x x x

11.7 Error detection

The relay output is active for the following errors:

Limit comparator for pH value/redox voltage with non-active temperature compensation

— Underrange pH value/redox voltage

— Overrange pH value/redox voltage

60

Limit comparator of pH value/redox voltage with active temperature compensation

— Underrange pH value/redox voltage

— Overrange pH value/redox voltage

— Underrange temperature

— Overrange temperature

Limit comparator — temperature

— Underrange temperature

— Overrange temperature

Calibration timer

— Timeout

61

12 Display and LED messages

12.1 Operating states of JUMO ecoTrans pH 03

Two LED indicate operating states

Instrument status Red LED (top)

Normal mode Off

Error

Initialization

Flashing

Off

12.2 Underrange

Yellow LED (bottom)

On if LC1 is active

On if LC1 is active

Off

Value is below lower measurement range limit (ORP means redox).

12.3 Overrange

Measurement range exceeded (ORP means redox).

12.4 Broken sensor

Broken sensor, wrong or no temperature sensor connected;

see Section 8.1.2 «Measurement input — temperature

(submenu «TEMP»)», page 28.

62

If no automatic temperature compensation or temperature measurement is required parameter SENS.T must be set

accordingly; see Section 8.1.2 «Measurement input — temperature (submenu «TEMP»)», page 28.

12.5 Short-circuit

12.6 Initialization of dependent parameters

After a parameter has been changed, other dependent parameters are automatically changed.

Please check all dependent parameters!

12.7 Calibration timer elapsed

Depending on specifications (for example of the equipment manufacturer), calibration of the measurement chain should be performed.

After a correct calibration, the calibration timer is reset and automatically restarted.

63

13 Operation via setup interface

(1)

(4)

(2)

P

K1

EXIT

(3)

(1) JUMO ecoTRANS pH 03

(2) PC interface line (optional accessory)

(3) JUMO PC setup software, multilingual D / GB / F (optional accessory)

(4) PC or Notebook with USB interface operating system: Windows 2000

®

,

NT

®

4.0 and up, Windows Vista

®

Windows XP

® or Windows

64

13.1 Operation with PC setup program

(1)

(3)

(2)

(1) Navigation tree

The navigation tree provides fast access (double click) to individual setting options.

(2) Diagnostics window

As soon as a connection is established with an instrument, current data is displayed here.

(3) Working area

Clicking the arrow ( ) shows possible settings.

Double clicking the text opens the appropriate editing window.

65

14 Technical data

Inputs

Analog input 1 (pH / redox)

— Electrodes

— Glass or metal electrodes with isolated reference electrode

— Antimony electrode

Measurement ranges for pH / redox

-2 … 16 pH or

-1500 … +1500 mV

Accuracy for pH / redox

± 1% of the measurement range

Analog input 2 (temperature)

— Resistance thermometer Pt100 or Pt1000

The temperature sensor can be connected in a 2-wire circuit.

Measurement display can be switched between °C / °F

Temperature offset for analog input 2

A process value can be corrected by an offset in the range from —

20 … +20°C.

Temperature measurement range

-10 … +150°C or 14 … 302°F

Deviation from characteristic temperature curve

for Pt 100 / Pt 1000:

≤

1.5 K

Outputs

Two analog outputs:

Freely configurable:

0(2) … 10V

10 … (2)0V

R load

R load

≥

2 k

Ω

or

≥

2 k

Ω

or else

66

0(4) … 20mA R load

20 … (4)0mA R load

≤

400

Ω or

≤

400

Ω galvanically isolated from inputs:

Δ

U

≤

30V AC or

Δ

U

≤

50 V DC

Scope of scaling at least 10% of the scope of the measurement range

deviation from the characteristic curve of the output signal

≤

0.075% of the measurement range

Relay output:

Switching contact switching capacity: 8 A, 250 V AC or 8 A, 24 V DC with resistive load contact life: > 100,000 operations at normal load

Key general parameters

A/D converter

14-bit resolution

Sampling time

500ms = 2 measurements / second

Effect of ambient temperature

≤

0.6% / 10 K

Measuring circuit monitoring

Input 1(main value): out-of-range

Input 2 (temperature): out-of-range, sensor short circuit, broken sensor.

In case of error, the outputs assume a defined

(configurable) state.

Data backup

EEPROM

67

Supply

DC 20 … 30 V, residual ripple<5%, power consumption

≤

4 W, with reverse polarity protection.

Operates only on SELV or PELV circuits.

Electrical connection

Screw terminals up to 2.5 mm

2

Operating temperature range

0 … +50°C

Functional temperature range

-10 … +60°C

Storage temperature range

-20 … +75°C

Climatic rating

Rel. humidity

≤

75% no condensation

Enclosure protection (complies with EN 60 529)

IP 20

Electrical safety

Complies with EN 61 010 air gaps and creep zones for

— Overvoltage category II

— Pollution degree 2

Electromagnetic compatibility

Complies with EN 61 326

Interference immunity:To industrial requirements

Interference emission:Class B

Enclosure

DIN rail enclosure made of PC (polycarbonate)

68

Mounting

On DIN rail 35mm x 7.5mm to DIN EN 60 715

Installation position

Any

Weight

Approx. 150g

15 Environment/disposal

Defective instruments can be sent to JUMO for proper disposal.

69

70

JUMO GmbH & Co. KG

Street address:

Moritz-Juchheim-Straße 1

36039 Fulda, Germany

Delivery address:

Mackenrodtstraße 14

36039 Fulda, Germany

Postal address:

36035 Fulda, Germany

Phone: +49 661 6003-0

Fax: +49 661 6003-607

Email: [email protected]

Internet: www.jumo.net

JUMO Instrument Co. Ltd.

JUMO House

Temple Bank, Riverway

Harlow, Essex CM 20 2DY, UK

Phone: +44 1279 63 55 33

Fax: +44 1279 62 50 29

Email: [email protected]

Internet: www.jumo.co.uk

JUMO Process Control, Inc.

6733 Myers Road

East Syracuse, NY 13057, USA

Phone: +1 315 437 5866

Fax: +1 315 437 5860

Email: [email protected]

Internet: www.jumousa.com

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Content

9

Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

9.1

General information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

9.2

9.3

9.3.1 Zero point error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

9.3.2 Slope error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

9.3.5 Additional measures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

9.4

9.5

9.6

9.7

9.7.1 General information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

10

Analog output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

10.1

10.2

10.3

10.4

10.5

11

Relay output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

11.1

Relay behavior . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

11.2

11.3

11.4

11.5

11.6

11.7

Error detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

. . . . . . . . . . . . . . . . . . . 42

. . . . . . . . . . . . . . . . . . . . . . . . . 43

. . . . . . . . . . . . . . . . . . . . . . . 44

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53