JUMO ecoTRANS Lf 03 Operating Manual

ecoTRANS Lf 03

Transmitter /

Switching Device

for Conductivity

Type 202732

B 20.2732.0

Operating Manual

02.05/00429233

1 Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2 Identifying the instrument version . . . . . . . . . . . . . . . . . . 6

2.1 Type designation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

4 Electrical connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

5 Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

5.1 Fundamentals of conductivity measurement . . . . . . . . . . . . . . . . . . 12

5.2 Applying the supply voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

6 Setting / altering the instrument functions . . . . . . . . . . 13

6.1 Actual-value display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

6.2 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

6.3 Function of keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

6.4 Level selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

6.5 The operator level (USER) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

6.6 The administrator level (ADMIN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

6.7 The enabling level (RIGHT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

6.8 The calibration level (CALIB) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

7 Setting ranges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

8 Configurable parameters . . . . . . . . . . . . . . . . . . . . . . . . . 23

8.1 Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

8.1.1 Measurement input for conductivity (submenu CON) . . . . . . . . . . . . 24

8.1.2 Measurement input for temperature (submenu TEMP) . . . . . . . . . . . 28

8.2 Relay / open-collector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

8.2.1 Logic output 1 (submenu BIN.1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

8.2.2 Logic output 2 - option (submenu BIN.2) . . . . . . . . . . . . . . . . . . . . . 33

8.3 Analog outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

8.3.1 Conductivity (submenu CO.OUT) . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

8.3.2 Temperature (submenu TE.OUT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

8 Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

8.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

8.2 Activating the calibration mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

8.3 Selecting the calibration procedure . . . . . . . . . . . . . . . . . . . . . . . . . 43

8.4 Calibrating the temperature coefficient using automatic

temperature measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

8.5 Calibrating the temperature coefficient using manual

temperature entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

8.6 Calibrating the relative cell constant . . . . . . . . . . . . . . . . . . . . . . . . 49

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

9.1 Response during calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

9.2 Response of the output signal in fault condition . . . . . . . . . . . . . . . 52

9.3 Response of the output signal on leaving the

scaling range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

9.4 Manual operation of the analog output . . . . . . . . . . . . . . . . . . . . . . 53

10 Relay output / open-collector . . . . . . . . . . . . . . . . . . . . . 54

10.1 Response of the relay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

10.2 Manual operation of the relay outputs . . . . . . . . . . . . . . . . . . . . . . . 54

10.3 Response of the relay during calibration . . . . . . . . . . . . . . . . . . . . . 56

10.4 Pulse function of the relay output . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

10.5 Fault output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

11 The USP contact (for high-purity water) . . . . . . . . . . . . . 57

11.1 USP pre-alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

12 Display and LED messages . . . . . . . . . . . . . . . . . . . . . . . 59

12.1 Operating states of the JUMO ecoTrans Lf 03 . . . . . . . . . . . . . . . . . 59

12.2 Underrange . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

12.3 Overrange . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

12.4 Probe break . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

12.5 Short circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

12.6 Initialization of dependent parameters . . . . . . . . . . . . . . . . . . . . . . . 60

12.7 Calibration timer has run down . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

13 Operation via setup interface . . . . . . . . . . . . . . . . . . . . . 61

13.1 Operation through Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

14 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

15 Environment / waste disposal . . . . . . . . . . . . . . . . . . . . . 66

5

1 Notes

All necessary settings are described in this Operating
Manual. However, if any difficulties should still arise
during start-up, please do not carry out any
manipulations on the unit. You could endanger your
rights under the instrument warranty! Please contact
the nearest subsidiary or the head office in such a
case.

Please read this operating manual before starting up
the instrument. Keep the manual in a place which is
accessible to all users at all times. Please assist us to
improve this operating manual, where necessary.

6

2 Identifying the instrument version

The nameplate with the order code is glued to the side of the
housing. The supply voltage must correspond to the voltage given
on the nameplate.

2.1 Type designation

(1) Basic type

202732 JUMO ecoTRANS Lf 03,

Microprocessor transmitter / switching device for
conductivity (freely programmable ranges)

(2) Output I (conductivity / resistivity)

888 analog signal output, freely programmable

(3) Output II (temperature)

888 analog signal output, freely programmable

(4) Output III (switching)

101 1 x relay, changeover contact
177 2 x open-collector

(5) Extra codes

000 none
024 delivery includes PC setup software
999 customer-specific programming

(1) (2) (3) (4) (5)

Order code 202732 / 888 - 888 - /

Order example 202732 / 888 - 888 - 177 / 024

7

3 Installation

4 Electrical connection

The choice of cable, the installation, the fusing and the electrical
connection must conform to the requirements of VDE 0100
“Regulations on the Installation of Power Circuits with Nominal
Voltages below 1000 V” or the appropriate local regulations.

❏ The electrical connection must only be carried out by qualified

personnel.

❏ Electromagnetic compatibility conforms to the standards and

regulations cited in the technical data.

❏ The instrument is not suitable for use in areas with an explosion

hazard (Ex areas).

Apart from faulty installation, incorrect settings on the instrument
may also affect the proper functioning of the subsequent process or
lead to damage. Safety devices should always be provided that are
independent of the instrument (such as overpressure valves or
temperature monitors/limiters) and only capable of adjustment by
specialist personnel. Please observe the relevant safety regulations
for such matters.

£ 75

-10

+60

°C

8

❏ The load circuit must be fused for the maximum relay current, in

order to prevent the output relay contacts becoming welded in
the event of a short circuit.

❏ Do not connect any additional loads to the screw terminals for

the supply of the instrument.

❏ Any electrical connection other than that specified in the

connection diagram may result in the destruction of the
instrument.

❏ Run input, output and supply cables separately and not parallel

to one another.

❏ Probe leads must be implemented as twisted and shielded,

uninterrupted cables (do not run them via terminal blocks or
similar).

❏ Supply fluctuations are only permissible within the specified

tolerances (see Data Sheet 20.2732).

❏ The instrument must only be assembled or disassembled in the

de-energized state or when the cables are not connected.

9

Terminal assignment

Outputs Terminals Symbol

I
Analog
signal output for
conductivity
(electrically
isolated)

5
6

+

-

II
Analog
signal output for
temperature
(electrically
isolated)

7
8

+

-

P

K1

EXIT

4321

5876

13 L-L+14

9121110

56

+-

78

+-

10

III
Relay

1
3
4

common
n.c. (break)
n.o. (make)

Open-collector
output 1
(electrically
isolated)

1
3

GND
+

Open-collector
output 2
(electrically
isolated)

1
4

GND
A+

Measurement
inputs

Terminals Symbol

Conductivity
cell

1413outer electrode,

on coaxial cells
inner electrode,

on coaxial cells

Resistance
thermometer
in 2-wire circuit

9
12

temperature sensor

Resistance
thermometer
in 3-wire circuit

9
11
12

temperature sensor

Resistance
thermometer
in 4-wire circuit

9
10
11
12

temperature sensor

413

P

S

Ö

13

GND

+

14

GND

+

14

13

J

9

1

2

J

911

12

J

11

12

9 10

11

Connection of the conductivity cell

Supply Terminals Symbol

Supply
voltage
(with reverse­polarity
protection)

L­L +

Conductivity cell

(JUMO types)

JUMO

ecoTRANS Lf 03

Plug-in head Attached cable
Outer electrode white 14
Inner electrode 2 brown 13
Temperature

compensation

1
3

yellow

green

9

12

L- L+

-+

12

5 Commissioning

5.1 Fundamentals of conductivity measurement

Principle of measurement

Electrolytic conductivity measuring cells basically consist of two
metal plates arranged opposite each other which are immersed in the
solution to be measured. The conductivity of the solution is
determined through the measuring voltage and the resulting
measuring current.

The current between the metal plates depends on their geometry
(distance and area). The

cell constant

describes this dependence.
Subject to manufacturing tolerances, or because of dirt or wear, the
real cell constant of a measuring cell often deviates from its nominal
value. This deviation is reflected by the

relative cell constant

that is

adjustable on the conductivity transmitter.
The conductivity of a solution depends on temperature (i.e. the

conductivity of a solution increases with rising temperature). The

temperature coefficient

of the solution describes the dependence
of conductivity and temperature. Since conductivity is not always
measured at the reference temperature, automatic temperature
compensation has been integrated. The transmitter uses the
temperature coefficient to calculate the conductivity that would be
present at the reference temperature from the current conductivity
and the current temperature, and then display this value.

5.2 Applying the supply voltage

When the instrument has been correctly connected, all LCD
segments will be shown briefly, immediately after applying the supply
voltage.

Note

After initializing the controller, the output signal is 0 V or 0 mA. The
logic outputs or relays are in the quiescent state (inactive). After
approx. 2 sec, the JUMO ecoTRANS Lf 03 operates according to its
configuration.

13

6 Setting / altering the instrument functions

Alterations can be carried out in the setup program or from the keys
of the JUMO ecoTRANS Lf 03.

6.1 Actual-value display

The actual value is displayed either in the

- static mode or in the

- alternating mode

Static display (default setting)

Compensated conductance with current unit

Alternating display (fixed rhythm: approx. 3 seconds)

Compensated conductance with Current temperature with
current unit current unit

Change from static display (compensated conductivity only) to
alternating display

✱ Press (for less than 2 sec)

Change from alternating display to static display

✱ Press (for less than 2 sec)

approx. 3 sec

P

P

14

6.2 Operation

The operation of the instrument is arranged on levels.
The access to all levels (exception: operator level) is protected by

different codes

2

.

At the operator level (USER), all parameters can be viewed or
altered in accordance with the user rights

1

(see enabling level).

At the calibration level (CALIB), the cell constant and/or
temperature coefficient can be calibrated.

At the enabling level (RIGHT), the user rights can be defined.
At the administrator level (ADMIN), all parameters can be set

(configured).
The different codes and the settings at the enabling level make it

possible to assign different rights to the user.

1

In the factory default setting, all parameters are set to READ,
which means that all parameters can only be read at the operator
level but not altered.

2

The codes for the administrator and enabling levels can only be
altered through the setup program,
see Chapter 13 “Operation via setup interface”, page 61.

6.3 Function of keys

- Use the UP and DOWN keys to select a submenu in the main
menu or to scroll forwards or backwards.

- Use the P key to change to the corresponding submenu.

- If you want to alter (edit) a parameter, press the P key.

- If the parameter has been enabled for editing, the value flashes, if
the parameter is inhibited, LOCK is displayed.

After 60 seconds without operator action (key stroke)
the instrument jumps back to displaying the actual
value.

This time-out function is inactive during calibration!

15

- In order to alter a parameter, it must be enabled at the enabling
level (set from “rEAd” to “Edit”).

- Press the UP or DOWN key to increase or decrease the value.

- Accept the value by pressing the P key.

- Use the EXIT key to cancel the entry and change to the next­higher level.

16

6.4 Level selection

1

or time-out (automatic return after 60 sec without operator action)

see Chapter 6.5 “The
operator level (USER)”,
page 17

see Chapter 6.6 “The
administrator level
(ADMIN)”, page 18

see Chapter 6.7 “The
enabling level (RIGHT)”,
page 19

see Chapter 6.8 “The
calibration level
(CALIB)”, page 20

17

6.5 The operator level (USER)

18

6.6 The administrator level (ADMIN)

19

6.7 The enabling level (RIGHT)

Parameters at the operator level (USER)

Value is shown can be

altered
EDIT X X
READ X -

20

6.8 The calibration level (CALIB)

1

see Chapter 8 “Calibration”, page 41.

2

see Chapter 8.4 “Calibrating the temperature coefficient using
automatic temperature measurement”, page 44 or Chapter 8.5
“Calibrating the temperature coefficient using manual
temperature entry”, page 47.

3

see Chapter 8.6 “Calibrating the relative cell constant”, page 49.

The time-out function is not active during calibration!

21

7 Setting ranges

0 — 1 µS to 0 — 200 mS, depending on the cell constant

Unit 0 = S/cm 1 = mho/cm

Cell

constant

Range

0.01

1

/

cm

1 0 – 1.000 µS/cm 0 – 1.000 µmho/cm

1

2 0 – 2.00 µS/cm 0 – 2.00 µmho/cm

1

3 0 – 5.00 µS/cm 0 – 5.00 µmho/cm

1

4 0 – 20.00 µS/cm 0 – 20.00 µmho/cm

2

0.11/

cm

5 0 – 5.00 µS/cm 0 – 5.00 µmho/cm

1

6 0 – 20.00 µS/cm 0 – 20.00 µmho/cm

1

7 0 – 200.0 µS/cm 0 – 200.0 µmho/cm

2

8 0 – 1000 µS/cm 0 – 1000 µmho/cm

3

11/

cm

9 0 – 500.0 µS/cm 0 – 500.0 µmho/cm

1

10 0 – 1000 µS/cm 0 – 1000 µmho/cm

3

11 0 – 2.00 mS/cm 0 – 2.00 mmho/cm

2

12 0 – 10.00 mS/cm 0 – 10.00 mmho/cm

3, 4

13 0 – 20.00 mS/cm 0 – 20.00 mmho/cm

2

14 0 – 100.0 mS/cm 0 – 100.0 mmho/cm

3, 4

31/

cm

15 0 – 30.00 mS/cm 0 – 30.00 mmho/cm

3, 4

101/

cm

16 0 – 100.0 mS/cm 0 – 100.0 mmho/cm

3, 4

17 0 – 200.0 mS/cm 0 – 200.0 mmho/cm

3

The deviations from the characteristic listed below refer to
µS/cm or mS/cm

1

deviation from characteristic ≤ 1%

2

deviation from characteristic ≤ 1.5%

3

deviation from characteristic ≤ 2%

4

Above a temperature of ≥ 85°C and a temperature coefficient TK
> 2.2%/°C, the deviations from the characteristic may be larger.

22

Unit 2 = kΩ*cm 3 = MΩ*cm

Cell

constant

Range

0.01

1

/

cm

1 1000 – 9999 kΩ*cm 1.00 – 99.99 MΩ*cm

1

2 500 – 9999 kΩ*cm 0.50– 50.00 MΩ*cm

1

3 200 – 9999 kΩ*cm 0.20– 20.00 MΩ*cm

1

4 50 – 2500 kΩ*cm 0.05 – 2.50 MΩ*cm

2

0.11/

cm

5 200 – 9999 kΩ*cm 0.20 – 20.00 MΩ*cm

1

6 50 – 2500 kΩ*cm 0.05– 2.50 MΩ*cm

1

7 5.0 – 250.0 kΩ*cm

- -

2

8 1.00 – 50.00 kΩ*cm

3

11/

cm

9 2.00 – 99.99 kΩ*cm

1

10 1.00 – 50.00 kΩ*cm

3

11 0.50 – 25.00 kΩ*cm

2

12 0.10 – 5.00 kΩ*cm

3, 4

13 - -

2

14 - -

3, 4

31/

cm

15 - -

3, 4

101/

cm

16 - -

3, 4

17 - -

3

not recommended

- - not possible

The deviations from the characteristic listed below refer to
µS/cm or mS/cm

1

deviation from characteristic ≤ 1%

2

deviation from characteristic ≤ 1.5%

3

deviation from characteristic ≤ 2%

4

Above a temperature of ≥ 85°C and a temperature coefficient TK
> 2.2%/°C, the deviations from the characteristic may be larger.

23

The parameters can be set through the setup

program or on the instrument.

When altering one parameter, it may be necessary to

adjust other parameters as well, because some

parameters are affected by others.

Example:

When altering the measuring range, the display

format, setpoints and other parameters will also be

adjusted.

During internal parameter adjustment, the display will

show:

8 Configurable parameters

24

8.1 Inputs

8.1.1 Measurement input for conductivity (submenu CON)

Parameter Display Setting range

1

Measurement ranges

with nominal

cell constant

RANGE 01 = 0 – 1 µS/cm K = 0.01

1

/

cm

02 = 0 – 2 µS/cm K = 0.01

1

/

cm

03 = 0 – 5 µS/cm K = 0.01

1

/

cm

04 = 0 – 20 µS/cm K = 0.01

1

/

cm

05 = 0 – 5 µS/cm K = 0.1

1

/

cm

06 = 0 – 20 µS/cm K = 0.1

1

/

cm

07 = 0 – 200 µS/cm K = 0.1

1

/

cm

08 = 0 – 1000 µS/cm K = 0.1

1

/

cm

09 = 0 – 500 µS/cm K = 1

1

/

cm

10 = 0 – 1000 µS/cm K = 1

1

/

cm

11 = 0 – 2 mS/cm K = 1

1

/

cm

12 = 0 – 10 mS/cm K = 1

1

/

cm

13 = 0 – 20 mS/cm K = 1

1

/

cm

14 = 0 – 100 mS/cm K = 1

1

/

cm

15 = 0 – 30 mS/cm K = 3

1

/

cm

16 = 0 – 100 mS/cm K = 10

1

/

cm

17 = 0 – 200 mS/cm K = 10

1

/

cm

1

The default setting is shown

bold

. All other possible ranges, see Chapter 7 “Setting ranges”, page 21

25

Dimensional unit

of conductivity

UNIT.C 0 = µS/cm or mS/cm

1 = µmho/cm or mmho/cm

2 = kΩ· cm

3 = MΩ· cm

Filter constant for

conductivity

(2nd order filter)

DF.CON 0—2—99 seconds

Relative

cell constant

CELL.C 20.00—100—500.0%

Parameter Display Setting range

1

1

The default setting is shown bold.

26

Type of temperature

compensation

FCT.TC 0 = no compensation

1 = linear compensation

2 = natural water (EN 27 888)

3 = ASTM 1125-95 (neutral contamination)

Note

If compensation is activated, the USP contact or

USP pre-alarm functions are deactivated.

See also: Chapter 11 “The USP contact (for high-

purity water)”, page 57.

Temperature

coefficient of liquid

ALPHA 0—2.2 — 5.5%/°C

Reference

temperature

REF.TE 10.00 to 25 to 40.00°C

Parameter Display Setting range

1

1

The default setting is shown bold

27

Lead compensation

for conductivity

RO.CON 0.00 — 99.99 Ω

Note

The effect of long cables for the measuring ranges

above approx. 20 mS/cm can be compensated by

entering the lead resistance.

Actual-value

correction for

conductivity (offset)

OF.CON Setting range and representation of numbers

depend on the measuring range.

0.00 mS/cm

Note

Zero-point errors caused by the system can be

compensated.

Parameter Display Setting range

1

1

The default setting is shown bold.

28

8.1.2 Measurement input for temperature (submenu TEMP)

Parameter Display Setting range

1

Probe type SENS 0 = Manual temperature entry

1 = Pt100

2 = Pt1000

3 = NTC 2 kΩ

4 = KTY-10/11-6

5 = NTC 2.25 kΩ

6 = customer-specific

Connection type of

temperature sensor

WIRE 2 = 2-wire

3 = 3-wire

4 = 4-wire

Filter constant

temperature

(2nd order filter)

DF.TE 0—2—99 seconds

Temperature unit UNIT.T 0 = °C

1 = °F

1

The default setting is shown bold.

29

Manual

temperature entry

MAN.TE -10 to 25 to 250.0°C

or

14 to 77 to 482°F

Note

The default setting depends on the selected

temperature unit UNIT.T.

Actual-value

correction for

temperature (offset)

OFF.TE -20.00 to 0 to 20.00°C

or

-36 to 0 to 36°F

Note

The default setting depends on the selected

temperature unit UNIT.T.

Parameter Display Setting range

1

1

The default setting is shown bold.

30

8.2 Relay / open-collector

8.2.1 Logic output 1 (submenu BIN.1)

Parameter Display Setting range

1

Switching function

Note

Alterations of this

parameter will affect:

-ALAR.1

- HYS.1.

When the USP con-

tact or the USP pre-

contact is activated,

then temperature

compensation FCT.TC

is deactivated.

FCT.1 0 = no function

1 = MAX contact: conductivity

(make, similar to LK7)

2

2 = MIN contact: conductivity

(break, similar to LK8)

2

3 = MAX contact: temperature

(make, similar to LK7)

2

4 = MIN contact: temperature

(break, similar to LK8)

2

5 = USP contact

(switching point as per USP <645>

see Chapter 11 “The USP contact (for high-

purity water)”, page 57)

6 = USP pre-contact

(see Chapter 11.1 “USP pre-alarm”, page 58)

7 = calibration timer has run down

8 = fault output

1

The default setting is shown

bold

/

2

see Chapter 10 “Relay output / open-collector”, page 54

31

Switching point ALAR.1 According to measuring range (in configured unit)

2.00 mS/cm

Hysteresis HYS.1. According to measuring range (in configured unit)

0.04 mS/cm

(2% of range with range 0 — 2 mS/cm) or

5°C or 9°F

Pull-in delay T.ON 1 0—2—999 seconds

Drop-out delay T.OFF1 0—1—999 seconds

Note

The parameter is only active if

pulse time T.PUL1 = 0.

Pulse time T.PU L1 0—999 seconds, see Chapter 10 “Relay output /

open-collector”, page 54

Response of

logic output 1

in calibration mode

CAL.1 0 = inactive

1 = active

2 = remains in current state

Parameter Display Setting range

1

1

The default setting is shown bold.

32

Response to fault ERR.1 0 = inactive

1 = active

2 = frozen (relay remains unchanged)

Manual mode SIM.1 OFF = no manual mode

0 = inactive

1 = active

USP pre-contact S.USP1 0—20—100%

Note

If the USP contact or the USP pre-contact is

activated, temperature compensation FCT.TC is

deactivated.

See also Chapter 11.1 “USP pre-alarm”, page 58.

Parameter Display Setting range

1

1

The default setting is shown bold.

33

8.2.2 Logic output 2 - option (submenu BIN.2)

Parameter Display Setting range

1

Switching function

Note

Alterations of this

parameter will affect:

-ALAR.2

- HYS.2.

When the USP con-

tact or the USP pre-

contact is activated,

then temperature

compensation FCT.TC

is deactivated.

FCT.2 0 = no function

1 = MAX contact: conductivity

(make, similar to LK7)

2

2 = MIN contact: conductivity

(break, similar to LK8)

2

3 = MAX contact: temperature

(make, similar to LK7)

2

4 = MIN contact: temperature

(break, similar to LK8)

2

5 = USP contact

(switching point as per USP <645>

see Chapter 11 “The USP contact (for high-

purity water)”, page 57)

6 = USP pre-contact

(see Chapter 11.1 “USP pre-alarm”, page 58)

7 = calibration timer has run down

8 = fault output

1

The default setting is shown

bold

/

2

see Chapter 10 “Relay output / open-collector”, page 54

34

Switching point ALAR.2 According to measuring range (in configured unit)

2.00 mS/cm

Hysteresis HYS.2. According to measuring range (in configured unit)

0.04 mS/cm

(2% of range with range 0 — 2 mS/cm) or

5°C or 9°F

Pull-in delay T.ON 2 0—2—999 seconds

Drop-out delay T.OFF2 0—1—999 seconds

Note

The parameter is only active if pulse time

T.PUL2 = 0.

Pulse time T.PU L2 0—999 seconds, see Chapter 10 “Relay output /

open-collector”, page 54

Response of

logic output 2

in calibration mode

CAL.2 0 = inactive

1 = active

2 = remains in current state

Parameter Display Setting range

1

1

The default setting is shown bold.

35

Response to fault ERR.2 0 = inactive

1 = active

2 = frozen (relay remains unchanged)

Manual mode SIM.2 OFF = no manual mode

0 = inactive

1 = active

USP pre-contact S.USP2 0—20—100%

Note

If the USP contact or the USP pre-contact is

activated, temperature compensation FCT.TC is

deactivated.

See also Chapter 11.1 “USP pre-alarm”, page 58.

Parameter Display Setting range

1

1

The default setting is shown bold.

36

8.3 Analog outputs

8.3.1 Conductivity (submenu CO.OUT)

Parameter Display Setting range

1

Type of

standard signal

OUT.CO 0 = 0 — 20 mA

1 = 4 — 20 mA

2 = 20 — 0 mA

3 = 20 — 4 mA

4 = 0 — 10 V

5 = 2 — 10 V

6 = 10 — 0 V

7 = 10 — 2 V

Note

If the standard signal type OUT.CO is changed,

manual operation of the output will be deactivated.

1

The default setting is shown bold.

37

Start value for

scaling

SCL.CO According to measuring range (in configured unit)

0.00 mS/cm

Note

Between the scaling start value SCL.CO and the

scaling end value SCH.CO there must be a

difference of at least 10% of the measuring range.

End value for

scaling

SCH.CO According to measuring range (in configured unit)

2.00 mS/cm

Note

Between the scaling start value SCL.CO and the

scaling end value SCH.CO there must be a

difference of at least 10% of the measuring range.

Response to

calibration mode

CAL.CO 0 = following

1 = current state is retained

Response to fault ERR.CO 0 = LOW (e.g. 0 V)

1 = HIGH (e.g. 10 V)

Parameter Display Setting range

1

1

The default setting is shown bold.

38

8.3.2 Temperature (submenu TE.OUT)

Manual operation of

the analog output for

conductivity

SIM.CO OFF = no manual mode

0 — 22 mA or 0 — 10.7 V

Parameter Display Setting range

1

Type of

standard signal

OUT.TE 0 = 0 — 20 mA

1 = 4 — 20 mA

2 = 20 — 0 mA

3 = 20 — 4 mA

4 = 0 — 10 V

5 = 2 — 10 V

6 = 10 — 0 V

7 = 10 — 2 V

Note

If the standard signal type OUT.TE is changed,

manual operation of the output will be deactivated.

Parameter Display Setting range

1

1

The default setting is shown bold.

39

Start value for

scaling

SCL.TE -10.0 to 224°C

or

14 to 437°F

Note

Setting range and default setting depend on the

selected temperature unit UNIT.T.

Between the scaling start value SCL.TE and the

scaling end value SCH.TE there must be a difference

of at least 10% of the measuring range.

End value for

scaling

SCH.TE 16 to 250.0°C

or

59 to 482°F

Note

Setting range and default setting depend on the

selected temperature unit UNIT.T.

Between the scaling start value SCL.TE and the

scaling end value SCH.TE there must be a difference

of at least 10% of the measuring range.

Parameter Display Setting range

1

1

The default setting is shown bold.

40

Response to

calibration mode

CAL.TE 0 = following

1 = current state is retained

Response to fault ERR.TE 0 = LOW (e.g. 0 V)

1 = HIGH (e.g. 10 V)

Manual operation of

analog output for

temperature

SIM.TE OFF = no manual mode

0 — 22 mA or 0 — 10.7 V

Parameter Display Setting range

1

1

The default setting is shown bold.

41

8 Calibration

8.1 General

The cell constants of conductivity cells stray somewhat depending
on the type and additionally change during operation (due to
deposits such as lime, or as a result of wear). This results in a
change of the output signal from the cell. It is therefore necessary
that the user is able to compensate for the deviations of the cell
constant from the nominal value, either by manual entry or an
automatic calibration of the cell constant K

rel

.

The conductivity of a solution varies with the temperature, so for
correct measurement both the temperature and the temperature
coefficient of the solution being measured must be known. The
temperature can either be measured automatically with a
temperature sensor, or set manually by the user. The temperature
coefficient can be determined automatically by the conductivity
transmitter, or entered manually.

The instrument uses the non-temperature compensated
measurements (TC = 0) at two different temperatures (the reference
temperature, e.g. 25°C, and a second temperature that will later on
be the working temperature) to determine the temperature
coefficient of the solution being measured.

The time intervals between calibrations depend on the conditions in
which the cell is used.
The instrument can draw your attention to a scheduled calibration
by means of the calibration timer.
see Chapter 12.7 “Calibration timer has run down”, page 60.

42

8.2 Activating the calibration mode

✱ Press the + keys

or
✱ Change to the calibration level through the menu

see Chapter 6.4 “Level selection”, page 16

The setup interface and the measurement inputs for
conductivity and temperature are not

electrically
isolated. This means that, in unfavorable conditions,
equalizing currents may flow when the PC interface is
connected. These equalizing currents may result in
damage to the devices connected.
However, there is no danger if the measurement
circuit of the transmitter is electrically isolated from
ground. If this is not assured, then one of the
following safety measures should be taken:

1) Use a computer without electrical coupling to

ground (e.g. battery-operated notebook).
The computer must not be connected to a
network.

2) Disconnect the measurement inputs of the

transmitter before connecting the PC interface.

The instrument can be calibrated through the setup
program or from the instrument keys.

The temperature coefficient and cell constant can
also be manually entered.

The time-out function is not active during calibration!

Calibration mode activation from the keys must be
enabled:

Press > 2 sec / set ADMIN / CAL / CA.LVL to 1.

P

P

43

or Chapter 6.8 “The calibration level (CALIB)”, page 20

or
✱ Start the calibration in the setup program.

8.3 Selecting the calibration procedure

Calibrating the temperature coefficient

✱ Confirm selection with .

continue with Chapter 8.4 “Calibrating the temperature
coefficient using automatic temperature measurement”, page 44
or
Chapter 8.5 “Calibrating the temperature coefficient using
manual temperature entry”, page 47

- or

Calibrating the relative cell constant

- Confirm selection with .
continue with Chapter 8.6 “Calibrating the relative cell constant”,
page 49.

The code for enabling the calibration mode is:
110

P

P

44

8.4 Calibrating the temperature coefficient using

automatic temperature measurement

Note

During calibration, the reference temperature and the working
temperature can be approached in any sequence.

✱ Immerse the conductivity cell and the temperature sensor in the

medium to be measured.

The currently measured temperature is displayed.
WORK.T shows you that the working temperature that will be used
later on has to be entered.

Note

The reference and working temperatures must differ by at least 5°C.
✱ Enter the working temperature (e.g. 40.0 for 40.0°C), continue

with .

✱ Temper the medium to be measured to the reference

temperature.

- The LC display shows the temperature in the upper line, and the
uncompensated conductivity in the line below.

The conductivity value will be accepted automatically on reaching
the reference temperature,

or

blinks

P

45

- the current value can be accepted immediately by pressing the

key (for less than 1 second).

- When the first calibration point has been accepted, the lower line
will show NEXT.

✱ Press the key.
✱ Temper the medium to be measured to the working temperature.

- The LC display shows the temperature in the upper line, and the
uncompensated conductivity in the line below.

- The conductivity value will be accepted automatically on reaching
the working temperature,

or
✱ the current value can be accepted immediately by pressing the

key (for less than 1 second).

- The temperature coefficient that was calculated is displayed.

✱ Store the value by pressing (for more than 2 seconds) or

P

P

P

P

46

discard it by pressing the EXIT key.

- The instrument will now show the currently present conductivity
(the actual value).

Note

Possible errors: 2 identical calibration points or temperature
coefficient larger than 5.5%

- The instrument indicates an error.

✱ After pressing the key or EXIT, the selected calibration

procedure is shown (see Chapter 8.3 “Selecting the calibration
procedure”, page 43).

or

P

47

8.5 Calibrating the temperature coefficient using

manual temperature entry

Note

During calibration, the reference temperature and the working
temperature can be approached in any sequence.

✱ Immerse the conductivity cell and the temperature sensor in the

medium to be measured.

WORK.T shows you that the working temperature that will be used
later on has to be entered.

Note

The reference and working temperatures must differ by at least 5°C.
✱ Enter the working temperature (e.g. 40.0 for 40.0°C), continue

with .

✱ Temper the medium to be measured to the reference

temperature.

- The uncompensated conductivity is shown in the bottom line in
the LC display.

✱ The current value can be accepted immediately by pressing

(for less than 1 second).

blinks

P

P

48

.

- When the first calibration point has been accepted, NEXT will be
shown in the bottom line.

✱ Press
✱ Temper the medium to the working temperature.

- The uncompensated conductivity is shown in the bottom line in
the LC display.

✱ The current value can be accepted immediately by pressing

(for less than 1 second).

- The temperature coefficient that was calculated is displayed.

✱ Store the value by pressing (for more than 2 seconds) or

discard it by pressing the EXIT key.

- The instrument now shows the present conductivity (actual value).

P

P

P

49

Note

Possible errors: 2 identical calibration points or temperature
coefficient larger than 5.5%

- The instrument indicates an error.

✱ After pressing the key or EXIT, the selected calibration

procedure is shown.

8.6 Calibrating the relative cell constant

General

Because of manufacturing variations, each conductivity cell has a
real cell constant which deviates slightly from the ideal nominal cell
constant. The real cell constant may drift due to dirt accumulating
on the cell.
This deviation of the real from the nominal cell constant is reflected
by the relative cell constant. The relative cell constant is determined
through calibration.

or

P

50

✱ Immerse the conductivity cell into a solution with a known

conductivity.

- The uncompensated conductivity of the reference solution (actual
value) and CAL.C are shown in alternation.

✱ As soon as the value displayed is stable: press (for less than

1 second).

✱ Enter the actual conductivity of the reference solution (setpoint)

with the or key.

✱ Press (for less than 1 second).

- The relative cell constant that was calculated is displayed.

✱ Save the cell constant by pressing for more than 2 seconds or

cancel by pressing EXIT.

Note

Possible errors: conductivity is 0 or the relative cell constant is

approx. 3 sec

P

blinks

P

P

51

outside 20 — 500%.

✱ The instrument indicates an error.

After pressing or EXIT, the selected calibration procedure is
shown (see Chapter 8.3 “Selecting the calibration procedure”,
page 43).
The latest valid measurement continues to be active.

< 20%

Conductivity = 0

> 500%

P

52

9 Analog output

9.1 Response during calibration

You can choose between “following” or “unchanged” (constant).

9.2 Response of the output signal in fault condition

Depending on the configuration, the output signal can adopt the
LOW or HIGH condition in the event of a fault.

The analog outputs are configured at the operator
level (USER) or the administrator level (ADMIN) in
CO.OUT (conductivity output) and TE.OUT
(temperature output) see Chapter 6.5 “The operator
level (USER)”, page 17.

Output signal

nominal

Output signal

HIGH

Output signal

LOW
0 — 20 mA 22.0 mA 0 mA
4 — 20 mA 22.0 mA 3.4 mA

0 — 10 V 10.7 V 0 V
2 — 10 V 10.7 V 1.4 V

53

9.3 Response of the output signal on leaving the
scaling range

On leaving the scaling range, the output will, up to a defined limit,
produce a proportional signal (as per NAMUR NE43). These limits
are listed in the table below:

9.4 Manual operation of the analog output

The JUMO ecoTRANS Lf 03 can output a constant analog signal,
for test purposes or commissioning,
see also Chapter 10.2 “Manual operation of the relay outputs”,
page 54.

Below scaling range Within scaling

range

Above scaling range

0.0 mA 0 — 20 mA 20.5 mA

3.8 mA 4 — 20 mA 20.5 mA

0.0 V 0 — 10 V 10.2 V

20.5 mA 20 — 0 mA 0.0 mA

20.5 mA 20 — 4 mA 3.8 mA

10.2 V 10 — 0 V 0.0V

1.8 V 2 — 10V 10.2 V

10.2 V 10 — 2 V 1.8 V

After a supply failure, manual mode is deactivated.

54

10 Relay output / open-collector

10.1 Response of the relay

Depending on the setting, the JUMO ecoTRANS Lf 03 monitors a
limit, similar to a limit comparator (LK), as a MAX LK or MIN LK.
The hysteresis is asymmetric with respect to the limit.

10.2 Manual operation of the relay outputs

The transmitter can output a constant signal, for test purposes or
commissioning a system.

The parameter USER / BIN.1 (or BIN.2) / SIM.1 (or SIM.2) can be
used to set manual operation to:

OFF = no manual mode
0 = inactive
1 = active => the “S” LED is on

.

Indication of manual mode

If one of the outputs is in manual mode, this will be indicated by
displaying “S” or “-”, in alternation with the actual value.

“S” means the corresponding output is in manual mode.

MAX LK

MIN LK

55

“-” means the corresponding output is not in manual mode.

1st place: analog output for conductivity
2nd place: analog output for temperature
3rd place: logic output 1
4th place: logic output 2 (if available)

In the example above, the analog temperature output is in manual
mode, all other outputs are not.

On leaving the manual mode, the output signal immediately takes
on the value that is proportional to the measured conductivity or
temperature value.

After power-on, manual mode is always deactivated.

56

10.3 Response of the relay during calibration

The parameter USER / BIN.1 (or BIN.2) / CAL.1 (or CAL.2) can be
used to set the relay response to:

0 = relay inactive
1 = relay active
2 = relay unchanged

(during calibration, the relay remains at the status that was
valid before the start of the calibration)

10.4 Pulse function of the relay output

The limit comparator is reset after an adjustable pulse time. The
parameter available for this purpose is: USER / BIN.1 (or BIN.2) /
T.PUL1 (or T.PUL2).
It can be set from 0 = 0 seconds (no pulse function)
to 999 = 999 seconds.
The LED K1 is lit up red as long as the switching condition is
fulfilled.

10.5 Fault output

The parameter USER / BIN.1 (or BIN.2) / ERR.1 (or ERR.2) can be
used to set the relay response to:

0 = relay inactive
1 = relay active
2 = relay unchanged

(during calibration, the relay remains at the status that was
valid before the start of the calibration).

Switch-off delay is not possible in pulsed operation.

57

11 The USP contact (for high-purity water)

The USP contact enables the monitoring of the high-purity water
quality in accordance with the requirements of USP <645>. USP
<645> includes a table that specifies a limit for the conductivity as a
function of temperature. If the conductivity remains below the limit,
then the high-purity water fulfills the requirements of USP <645>.

If, at a given temperature, the conductivity of the water is higher
than specified in the USP table, the USP contact of the JUMO
ecoTRANS Lf 03 will switch.

The limits are defined in steps; at 8°C, for example, a value of 5°C is
applied.

Note

Temperature compensation must be switched off (temperature
coefficient = 0) during monitoring.
Set the parameter USER / CON / ALPHA to 0.0.

Extract from USP <645>

Temp er at ur e°CMax. conductivity

µS/cm (uncomp.)

Temp er at ur e°CMax. conductivity

µS/cm (uncomp.)

00.6552.1

50.8602.2
10 0.9 65 2.4
15 1.0 70 2.5
20 1.1 75 2.7
25 1.3 80 2.7
30 1.4 85 2.7
35 1.5 90 2.7
40 1.7 95 2.9
45 1.8 100 3.1
50 1.9

58

If the conductivity exceeds the value for the corresponding
temperature, the configured contact will switch.

11.1 USP pre-alarm

The USP pre-alarm switches before the water quality reaches the
set limit.
The parameter: USER / BIN.1 / S.USP1 (0 — 100) can be used to
define a margin between pre-alarm and USP limit, as a percentage
value referred to the active limit.

59

12 Display and LED messages

12.1 Operating states of the JUMO ecoTrans Lf 03

Two LEDs indicate the operating states

12.2 Underrange

Below measuring range

12.3 Overrange

Above measuring range

12.4 Probe break

Device status LED red (top) LED yellow (bottom)
Normal operation off on, when LK1 is

active

Error blinks on, when LK1 is

active

Initialization off off

or

or

60

12.5 Short circuit

12.6 Initialization of dependent parameters

After altering one parameter, other dependent parameters are
altered automatically.

12.7 Calibration timer has run down

In accordance with the specifications (of the plant manufacturer, for
example), calibration of the cell constant and/or of the temperature
coefficient should be carried out.

Please check all dependent parameters!

or

61

13 Operation via setup interface

Caution

The setup interface and the measurement inputs for conductivity
and temperature are not

electrically isolated. This means that, in
unfavorable conditions, equalizing currents may flow when the PC
interface is connected. These equalizing currents may result in
damage to the devices connected.
However, there is no danger if the measurement circuit of the
transmitter is electrically isolated from ground. If this is not assured,
then one of the following safety measures should be taken:

1) Use a computer without electrical coupling to ground

(e.g. battery-operated notebook).
The computer must not be connected to a network.

2) Disconnect the measurement inputs of the transmitter before

connecting the PC interface.

3) No additional measuring cells or probes must be in the medium

during calibration, as this could result in measurement and
calibration errors!

P

EXIT

JUMO ecoTRANS Lf 03

PC interface cable

JUMO PC setup software
multilingual D / GB / F

PC or notebook with RS232 interface
Operating system:

–Windows ’98

®

– Windows 2000

®

–Windows XP

®

–Windows NT® 4.0 or higher

62

13.1 Operation through Setup

Customized linearization for the temperature probe

A table for 30 value pairs can be used to adapt any temperature
probe to the temperature input of the JUMO ecoTRANS Lf 03.

(1) Navigation tree

The navigation tree allows quick access (double-click) to the
individual setting options.

(2) Diagnosis window

A soon as a connection with a device has been established,
the latest data are shown here.

(3) Working area

If you click on the arrow ( ), the setting options will be shown.
A double-click on the text will call up the corresponding editing
window.

(1)

(2)

(3)

63

14 Technical data

Conductivity input

Electrolytic conductivity cells with the cell constants

0.01; 0.1; 1.0; 3.0; 10.0

1

/cm (2-electrode principle).

The cell constant can be adjusted over the range 20 — 500%.

Lead compensation, conductivity input

The effect of long cables can be compensated on ranges larger
than about 20 mS/cm by entering the lead resistance, within the
range from 0.00 to 99.99 Ω.

Measuring range

0 — 1 µS to 0 — 200 mS, depending on the cell constant,
see Chapter 7 “Setting ranges”, page 21 for details.

Deviation from characteristic, conductivity

see Chapter 7 “Setting ranges”, page 21.

Reference temperature (for temperature compensation)

settable from 10 to 40°C (factory setting: 25°C)

Temperature range

-10 to +250°C (depending on the temperature probe configured)

Deviation from characteristic, temperature

with Pt100 / Pt1000: ≤ 0.6%
NTC 2kΩ: ≤ 1.5%
NTC UUA: ≤ 2.0%
with customer-specific characteristic: ≤ 5 Ω

Analog input, temperature

- max. measurable resistance: 4500 Ω

- resistance thermometer Pt100 or Pt1000

measuring range: -10 to +250°C

-NTC 2K

measuring range: 0 to +150°C
resistance: 2 kΩ at 25°C

64

A parallel resistor with 8.2 kΩ is required!

- NTC 2K25

measuring range: 0 to +150°C
resistance: 2.25 kΩ at 25°C
A parallel resistor with 8.2 kΩ is required!

-KTY11-6

measuring range: -10 to +150°C
resistance: 2 kΩ at 25°C

- All temperature probes can be connected in

2-, 3- or 4-wire circuit.

- Customer-specific characteristic (through setup program)

measuring range: 30 — 4500 Ω / -10°C to +250°C
characteristic with 30 calibration points

Zero-point calibration, temperature input

Zero-point errors caused by the system can be compensated within
the range -20 to +20°C.

Analog outputs

freely configurable:
0(2) — 10V R

load

≥ 2 kΩ or

10 — 0(2)V R

load

≥ 2 kΩ or

0(4) — 20mA R

load

≤ 400Ω or

20 — 0(4)mA R

load

≤ 400Ω

electrically isolated from the inputs:

ΔU ≤ 30V AC or
ΔU ≤ 50V DC

Deviation of the analog output signal

+/- 0.015 mA or +/-5 mV

Relay output

changeover contact
contact rating: 8 A, 250 V AC, with resistive load

8 A,0 24 V DC with resistive load
current rating 8 A
contact life: > 100, 000 operations at rated load

65

Open-collector output

contact rating: 100 mA, 35 V DC with resistive load,

voltage drop in the switched state
≤ 1.2V, not short-circuit proof

A/D converter

resolution 14 bit

Sampling time

500 msec = 2 measurements per second

Ambient temperature error

≤ 0.5%/10 °C

Measuring circuit monitoring

conductivity input:
out-of-range, short-circuit

temperature input:
out-of-range, probe short-circuit, probe break

In a fault condition, the outputs adopt a defined (configurable) state.

Data backup

EEPROM

Supply voltage

20 — 30V DC, ripple < 5%
power drawn ≤ 3 W,
with reverse-polarity protection

Electrical connection

screw terminals up to 2.5 mm

2

Permissible ambient temperature

operating temperature range: 0 to +50°C
functional temperature range: -10 to +60°C

Permissible storage temperature

-25 to +75°C

66

Climatic conditions

rel. humidity ≤ 93% no condensation
Protection (to EN 60 529)

IP20

Electrical safety

to EN 61 010
clearance and creepage distances for

- overvoltage category II

- pollution degree 2

Electromagnetic compatibility

to EN 61 326
interference emission: Class B
interference immunity: to industrial requirements

Housing

housing for DIN rail mounting: PC (polycarbonate)

Mounting

on a 35 x 7.5 mm DIN rail to EN 60 715

Operating position

unrestricted

Weight

approx. 150g

15 Environment / waste disposal

Faulty devices can be returned to JUMO for proper disposal.