JUMO 202550 User manual

Type 202550
µP indicator/controller
for
analytical measurement
B 20.2550.0
Operating Instructions
02.02/00403097

1 General _______________________________________________________________ 4
1.1 Preface ______________________________________________________________________ 4
2 Typographical conventions _____________________________________________ 5
2.1 Warning signs ________________________________________________________________ 5
2.2 Note signs ___________________________________________________________________ 5
3 Application ____________________________________________________________ 6
3.1 Type 202550 _________________________________________________________________ 6
3.2 Operating Instructions B 20.2550.0 ______________________________________________ 7
4 Instrument identification ________________________________________________ 8
4.1 Type designation ______________________________________________________________ 9
5 Instrument description ________________________________________________ 10
5.1 Technical data _______________________________________________________________ 10
5.2 Dimensions _________________________________________________________________ 14
5.3 Optional accessories _________________________________________________________ 14
6 Assembly _____________________________________________________________ 16
6.1 Location ____________________________________________________________________ 16
6.2 Fitting ______________________________________________________________________ 16
6.3 Removing the controller module _______________________________________________ 17
6.4 Cleaning the front panel _______________________________________________________ 17
7 Installation ___________________________________________________________ 18
7.1 Electrical connection _________________________________________________________ 18
7.2 Connection diagram __________________________________________________________ 19
8 Commissioning _______________________________________________________ 22
8.1 Self-test ____________________________________________________________________ 22
9 Operation ____________________________________________________________ 23
9.1 Basics ______________________________________________________________________ 23
9.2 Principle of operation _________________________________________________________ 24
9.3 Operation within levels ________________________________________________________ 25
9.4 General _____________________________________________________________________ 26
9.5 Programming ________________________________________________________________ 27
10 pH indicator __________________________________________________________ 28
10.1 pH measurement circuit _______________________________________________________ 28
10.2 Calibration __________________________________________________________________ 28
10.3 Preparation __________________________________________________________________ 29
10.4 1-point calibration __________________________________________________________ 30
10.5 2-point calibration __________________________________________________________ 31
11 Operator level of the pH indicator ______________________________________ 33
11.1 Settings _____________________________________________________________________ 33
12 Parameter level of the pH indicator _____________________________________ 34
12.1 Settings _____________________________________________________________________ 34
13 Configuration level of the pH indicator __________________________________ 36
13.1 General _____________________________________________________________________ 36

13.2 Analog inputs - C111 _________________________________________________________ 36
13.3 Electrode type - C112 ________________________________________________________ 37
13.4 Electrode monitoring - C114 ___________________________________________________ 37
13.5 nuLL - SLoP _________________________________________________________________ 38
13.6 Configuration parameter for general (not pH-specific) functions ____________________ 38
14 Redox indicator _______________________________________________________ 39
14.1 Redox measurement circuit ___________________________________________________ 39
14.2 Calibration __________________________________________________________________ 39
14.3 1-point calibration __________________________________________________________ 41
14.4 2-point calibration __________________________________________________________ 42
15 Operator level of the redox indicator ___________________________________ 43
15.1 Settings _____________________________________________________________________ 43
16 Parameter level of the redox indicator __________________________________ 44
16.1 Settings _____________________________________________________________________ 44
17 Configuration level of the redox indicator _______________________________ 46
17.1 General _____________________________________________________________________ 46
17.2 Analog inputs - C111 _________________________________________________________ 46
17.3 nuLL - SLoP _________________________________________________________________ 47
17.4 Configuration parameter for general (not redox-specific) functions _________________ 47
18 Conductivity indicator _________________________________________________ 48
18.1 Conductivity measurement circuit ______________________________________________ 48
18.2 Conductivity measurement ____________________________________________________ 48
18.3 Measurement with manual temperature compensation ____________________________ 49
18.4 Manual temperature entry _____________________________________________________ 50
18.5 Measurement with automatic temperature compensation _________________________ 50
18.6 Calibration __________________________________________________________________ 51
18.7 Calibrating the relative cell constant _________________________________________ 53
18.8 Calibrating the temperature coefficient __________________________________________ 55
19 Operator level of the conductivity indicator _____________________________ 58
19.1 Settings _____________________________________________________________________ 58
20 Parameter level of the conductivity indicator ____________________________ 59
20.1 Settings _____________________________________________________________________ 59
21 Configuration level of the conductivity indicator _________________________ 61
21.1 General _____________________________________________________________________ 61
21.2 Analog inputs - C111 _________________________________________________________ 61
21.3 Process value output for conductivity - C311 ____________________________________ 62
21.4 rAnG - CELL - ALPH _________________________________________________________ 62
21.5 Configuration parameter for general (not conductivity-specific) functions ____________ 63
22 Universal indicator ____________________________________________________ 64
22.1 Measurement circuit for the universal indicator ___________________________________ 64
22.2 Display range / select application ______________________________________________ 64
22.3 Calibration __________________________________________________________________ 65
22.4 “Zero point” for 1-point calibration ___________________________________________ 67
22.5 “End value” for 1-point calibration ___________________________________________ 67

22.6 2-point calibration __________________________________________________________ 68
23 Operator level of the universal indicator ________________________________ 69
23.1 Settings _____________________________________________________________________ 69
24 Parameter level _______________________________________________________ 70
24.1 Settings _____________________________________________________________________ 70
25 Configuration level of the universal indicator ____________________________ 72
25.1 General _____________________________________________________________________ 72
25.2 Analog inputs - C111 _________________________________________________________ 72
25.3 Configuration parameter for general functions (not specific to the universal indicator) _ 73
25.4 nuLL - SLoP - SiL - SiH _______________________________________________________ 73
26 Configuration level (not instrument-specific) ____________________________ 74
26.1 General _____________________________________________________________________ 74
26.2 Logic inputs... - C112 _________________________________________________________ 74
26.3 Serial interface... - C113 ______________________________________________________ 75
26.4 Controller options - C211 _____________________________________________________ 76
26.5 Controller outputs - C212 _____________________________________________________ 77
26.6 Other outputs I - C213 ________________________________________________________ 78
26.7 Other outputs II - C214 _______________________________________________________ 79
26.8 Response for HOLD / Overrange - C215 ________________________________________ 80
26.2 SoL - SoH - SPL - SPH - OFFS - SiL - SiH ______________________________________ 81
27 Controller ____________________________________________________________ 83
27.1 Configuration ________________________________________________________________ 83
27.2 Controller optimization ________________________________________________________ 85
28 Manual operation _____________________________________________________ 86
28.1 Manual operation for outputs K1, K2 or K3 ______________________________________ 86
28.2 Simulated process value output ________________________________________________ 87
29 Hold _________________________________________________________________ 88
29.1 Hold controller _______________________________________________________________ 88
30 Version _______________________________________________________________ 89
30.1 Display software version and temperature unit ___________________________________ 89
31 Logic inputs __________________________________________________________ 90
31.1 Functions ___________________________________________________________________ 90
32 Interface _____________________________________________________________ 91
32.1 MODbus /Jbus ______________________________________________________________ 91
32.2 Profibus-DP _________________________________________________________________ 92
33 Glossary ______________________________________________________________ 93
34 Warnings – Errors ___________________________________________________ 101
34.1 Messages __________________________________________________________________ 101
35 Appendix ___________________________________________________________ 103
35.1 Programming the controller __________________________________________________ 103

4
1 General
1.1 Preface
Please read these Operating Instructions before commissioning the
instrument. Keep the manual in a place that is accessible to all users at all
times.
Please assist us to improve these operating instructions, where necessary.
Your suggestions will be welcome.
Phone [phone]
Fax [phone]
All necessary settings are described in this manual. However, if any
difficulties should still arise during start-up, please do not carry out
any unauthorized manipulations on the instrument. You could
endanger your rights under the instrument warranty!
Please contact the nearest subsidiary or the main factory in such a
case.
When returning modules, assemblies or components, the rules of
EN 100 015 “Protection of electrostatically sensitive components”
must be observed. Use only the appropriate ESD packaging for
transport.
Please note that we cannot accept any liability for damage caused
by ESD (electrostatic discharge).

5
2 Typographical conventions
2.1 Warning signs
2.2 Note signs
Danger
This symbol is used when there may be danger to personnel if the
instructions are ignored or not followed correctly!
Caution
This symbol is used when there may be damage to equipment or data if the
instructions are ignored or not followed correctly!
Note
This symbol is used when your special attention is drawn to a remark.
see abcd Reference
The cursive (italic) text refers to further information in other chapters or
sections.
abc1Footnote
Footnotes are remarks that refer to specific points in the text. Footnotes
consist of two parts:
A marker in the text, and the footnote text.
The markers in the text are arranged as continuous superscript numbers.
✱Action
This symbol indicates that an action to be performed is described.
The individual steps are marked by this asterisk.
Example:
✱Remove crosspoint screws.
✱Press the key.
Key combinations
If key symbols are shown connected by a plus sign, this means: first press
and hold down the key, and then press the next key.
+
EXIT PGM
EXIT

6
3 Application
3.1 Type 202550
Description The compact microprocessor indicator/controller, with 96mm x 48mm bezel
and plug-in controller module visualizes and controls variables in analytical
measurement (pH value, redox voltage, conductivity, chlorine, chlorine
dioxide, ozone and mA).
Inputs The indicator has two analog and two logic inputs.
The first analog input is suitable for connecting a 0(4)—20 mA signal, which
can be provided by any type of transmitter (including 2-wire types). The input
signal is conditioned as determined by the configuration, and displayed.
The second analog input can be used to connect Pt100 or Pt1000 resistance
thermometers.
Calibration
procedure
One special feature of the instrument is that the calibration procedures for pH,
redox and conductivity are internally programmed. This permits the
connection of simple transmitters (without their own calibration facilities) to the
dTRANS Az 01. In this case, the indicator/controller has to be configured
accordingly.
Examples of simple transmitters:
- for pH JUMO type 202701
- for redox voltage JUMO type 202702
- for conductivity JUMO type 202754/xx-xxx/263
Standard
signals
The dTRANS Az 01 is also suitable for the connection of transmitters that
produce a standard output signal. In this case, the dTRANS Az 01 must be
configured as a universal indicator.
Examples of JUMO transmitters with standard output signals:
- for dissolved oxygen JUMO dTRANS O2 01
- for free chlorine, chlorine dioxide and ozone JUMO Typ 202630
- JUMO pressure transmitters
Display The instrument features two 4-digit 7-segment displays for indicating the main
variable (red) and the temperature (green). The temperature display is switched
off in the default setting. A separate temperature sensor (Pt100 or Pt1000) can
be connected to the second analog input. This can then be used to display the
temperature of the medium and, if required, monitor it by means of a limit
comparator (limit switch). During programming, the displays provide
comments on the inputs.
Outputs The instrument has a maximum of 5 outputs
Out-
put
Stand-
ard
Description / configurable Output
K1 yes Controller / controller off, limit controller, pulse
width controller, pulse frequency controller,
modulating controller with P, PI, PD or PID
action
relay, make

7
3 Application
Interface A MODbus/Jbus (RS422 / RS485) or Profibus-DP interface can be supplied as
an option, for integrating the instrument into a data network.
The instrument can also be delivered with a power supply for a 2-wire
transmitter in place of the interface board.
3.2 Operating Instructions B 20.2550.0
These operating instructions provide full instructions on the installation,
electrical connection, commissioning, operation, parameter setting and
configuration of the microprocessor indicator/controller for analytical
measurement, type 202550.
Layout of the
operating
instructions
These operating instructions are arranged as follows:
1) General information
(applies to the indicator/controller, regardless of the application)
2) Description of the
- Operation
- Parameterization
- Configuration
of the indicator/controller, specially for a specific application (pH, redox,
conductivity, chlorine, chlorine dioxide, ozone, or general mA signals)
3) Description of the controller functions
(applies to the indicator/controller, regardless of the application)
4) Description of the
- Configuration
of the indicator/controller, regardless of the application
5) - Glossary
- Warnings / Errors
- Appendix
regardless of the application
K2 yes Controller / controller off, limit controller, pulse
width controller, pulse frequency controller,
modulating controller with P, PI, PD or PID action
relay, make
K3 option Analog output / proportional controller -- / analog
K3 option Limit comparator relay,
changeover
contact
K4 yes Logic output 0/5 V
0/12V
K5 option Analog output / proportional controller -- / analog
K5 option Limit comparator relay,
changeover
contact
K5 option Serial interface / Profibus-DP or MODbus/
Jbus
RS422 / RS485

8
4 Instrument identification
Check for
completeness
You should have received at least the following:
- Indicator/controller for analytical measurement, Type 202550
- 2 mounting brackets
- Seal (housing/panel)
- Operating Instructions B 20.2550.0
Nameplate The nameplate is glued to the housing.
Explanation of the type designation (1)
➩Chapter 4.1 “Type designation”, page 9.
The type designation (1) contains all the factory settings, such as the controller
function, the measurement inputs and extra codes. The extra codes are listed
in sequence and separated by commas.
The supply voltage must correspond to the voltage given on the
nameplate (2).
Made in Germany
Typ
VARTN F-Nr
202550/00-665-888,140-23-00/000
0(4)...20 mA
K1 / K2: Relais 3A; AC 250V; ohm. Last
K4: Binärausgang DC 0 / 5V
AC 48 - 63 Hz,110...240 V +10/-15%, 8 VA
20/00000000
000000000009848 0000
Pt100 / Pt1000: -50,0...250,0C
(1)
(2)

9
4 Instrument identification
4.1 Type designation
Order example
1Generally, the following configurations can be freely selected by the
user on all instruments of the 202550 series:
- Controller off
- Limit controller
- Pulse width controller with P, PI, PD, PID control action
- Pulse frequency controller with P, PI, PD, PID control action
- Modulating controller
2If output II (4) = “140”, “310” or “888”, then the interface option (6) “54”
or “64” is not possible (or the other way round).
(1) Basic type
202550 JUMO dTRANS Az 01
Microprocessor indicator/controller for analytical
measurement
(2) Basic type extensions
00 controller off1
10 limit controller1
(3) Input
660 0/4 — 20 mA front-panel print: pH and mV, °C
661 0/4 — 20 mA front-panel print: mV, °C
662 0/4 — 20 mA front-panel print: mS/cm and µS/cm, °C
664 0/4 — 20 mA front-panel print: none, °C
665 0/4 — 20 mA front-panel print: mg/l, °C
(4) Output I
000 no output
140 supply for 2-wire transmitter
310 relay, changeover contact
888 process value output, freely configurable
(5) Output II
000 no output or interface
140 supply for 2-wire transmitter2
310 relay, changeover contact2
888 process value output, freely configurable2
(6) Supply voltage
22 20 — 53 V AC/DC ±0%, 48 — 63/0 Hz
23 110 — 240 V AC +10%/-15%, 48 — 63 Hz
(7) Interface
00 no interface
54
serial interface RS422/485
2
64 serial interface Profibus-DP2
(8) Extra codes
000 none
014 logic output 0/12 V DC,
instead of standard 0/5 V DC
(1) (2) (3) (4) (5)2(6) (7)2(8)
202550/ .. - ... , ... , .. - .. - .. / ...

10
5 Instrument description
5.1 Technical data
Analog
input 1
Input resistance approx. 40Ω
Deviation from characteristic: ≤0.5% of the measurement range
0(4) — 20 mA.
Analog
input 2
Pt100 or Pt1000 resistance thermometer, in 2-wire or 3-wire circuit,
-50 to +250°C
Measurement display in °C or °F (option)
Deviation from characteristic: ≤0.25% of measurement range.
Ambient temperature error: ≤0.1% per 10 °C
Lead
compensation,
analog input 2
The lead resistance can be compensated in software by a correction of the
process value. This is not required if the resistance thermometer is connected
in a 3-wire circuit.
Alternatively, when a resistance thermometer is connected in a 2-wire circuit,
lead compensation can be provided by using an external compensation
resistor.
Logic
input 1
The following functions can be assigned as selected:
Key inhibit, setpoint switching, alarm stop, alarm time reset, hold, reverse
hold, freeze measurement, range expansion (x10), no function for logic input 1.
Logic
input 2
As for logic input 1.
Measurement
and control
range
Current
0(4) — 20 mA
pH value
-1.00 to 14.00 pH
Redox voltage
-1999 to +1999 mV
Conductivity
0 — 9999 mS/cm or µS/cm
0 — 9.999 mS/cm or µS/cm
0 — 99.99 mS/cm or µS/cm
0 — 999.9 mS/cm or µS/cm
Free chlorine, chlorine dioxide, ozone
-1999 to +9999 mg/l
-1.999 to +9.999 mg/l
-19.99 to +99.99 mg/l
-199.9 to +999.9 mg/l
Universal display
-1999 to +9999 digit
-1.999 to +9.999 digit
-19.99 to +99.99 digit
-199.9 to +999.9 digit

11
5 Instrument description
Reference
temperature
25°C (for conductivity indicator/controller)
Deviation from
characteristic ≤0.15% of measurement range
Temperature
display
-50 to +250°C (option °F)
Outputs 5 outputs are available:
Output 1 / 2
relay
(standard)
Make contact (can also be configured as break contact)
Contact rating: 3A, 250V AC, with resistive load
Contact life: > 5x105operations at rated load
Status indication: relay K1 => LED K1; relay K2 => LED K2
Output 4
logic output
(standard)
0/5V (standard) Rload ≥ 250Ω
0/12V (option) Rload ≥ 650Ω
Status indication: LED K4
Output 3 or
output 5
process value
output
(option)
Can be used as analog process value output or as proportional controller.
0(2) — 10V Rload ≥500Ω
0(4) — 20mA Rload ≤500Ω
electrically isolated from the inputs:
∆u ≤30V AC
∆u ≤50V DC
Output 3 or
output 5
relay
(option)
(changeover contact)
Contact rating: 3A, 250V AC, with resistive load
Contact life: > 5x105operations at rated load
Status indication: K3 => LED K3; K5 => no visible indication
Output 5,
interface
RS422 / RS485
(option)
electrically isolated;
baud rate: 4800 / 9600bps;
Protocol: MODbus/Jbus or Profibus-DP

5 Instrument description
12
5.1.1 General controller data
A/D converter resolution > 15 bit
Controller type Output 1 and output 2:
limit controller and/or pulse width or pulse frequency controller, or modulating
controller, freely configurable and selectable.
K3 / K5:
proportional controller
Control action P, PI, PID or PD, freely configurable and selectable
Sampling time 210 msec
Meas. circuit
monitoring
Input 1: out-of-range, sensor monitoring
Input 2: out-of-range, probe short-circuit, probe break
The outputs move to a defined (configurable) status.
Data backup EEPROM
Supply
voltage
110 — 240 V AC +10%/-15%, 48 — 63 Hz or
20 — 53 V AC/DC ±0%, 48 — 63/0 Hz
Power
consumption
approx. 8VA
Electrical
connection
via gold-plated faston connectors to DIN 46 244/A; 4.8mm x 0.8mm
Permissible
ambient
temperature
0 to +50°C
Permissible
ambient
temperature
limits
-10 to +55°C
Permissible
storage
temperature
-40 to +70°C
Climatic
conditions
rel. humidity ≤75%, no condensation
Enclosure
protection
to EN 60 529, front IP65 / back IP20

13
5 Instrument description
Electrical safety to EN 61 010, clearance and creepage distances for
- overvoltage category II
- pollution degree 2
Electro-
magnetic
compatibility
(EMC)
to EN 61 326
Housing panel-mounting housing in conductive plastic to DIN 43 700, base material
ABS, with plug-in controller module
Operating
position
unrestricted
Weight approx. 320g

5 Instrument description
14
5.2 Dimensions
Type 202550/...
5.3 Optional accessories
Additional housing, no door at front, enclosure IP65, Type 2FGE-125-2/125
Restricted external temperature range!
The ambient temperature for the surface-mounting housing must not exceed 45°C.

15
5 Instrument description
Additional housing, door at front, enclosure IP65, Type 2FGE-150-2/185
Restricted external temperature range!
The ambient temperature for the surface-mounting housing must not exceed 45°C.

16
6 Assembly
6.1 Location
Conditions The location should be as free from vibration as possible. Electromagnetic
fields, e. g. from motors, transformers etc. should be avoided. The ambient
temperature at the location can be from 0 to 50 °C, with a relative humidity of
not more than 75 %.
Panel cut-out
for close
mounting
6.2 Fitting
✱Fit the seal (1) that is supplied onto the body of the instrument.
✱Insert the controller from the front into the panel cut-out.
✱From behind the panel, slide the mounting brackets into the guides on the
sides of the housing. The flat faces of the mounting brackets must lie
against the housing.
✱Push the mounting brackets up to the back of the panel, and tighten them
evenly with a screwdriver.
(1)

17
6 Assembly
6.3 Removing the controller module
The controller module can be removed from its housing for servicing.
✱Press together the ribbed surfaces at right and left
and pull the controller module out of the housing.
6.4 Cleaning the front panel
The front panel can be cleaned with normal commercial washing, rinsing and
cleaning agents.
It has a limited resistance to organic solvents (e.g. methylated spirits, white
spirit, P1, xylol etc.).
Do not use high-pressure cleaning equipment!

18
7 Installation
7.1 Electrical connection
❏The choice of cable, the installation 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 may only be carried out by properly qualified
personnel.
❏The instrument must be completely disconnected from the electrical supply
if contact with live parts is possible.
❏A current-limiting resistor interrupts the supply circuit in the event of a
short-circuit. Any additional external fusing of the supply should not be
rated below 1A (slow).
❏The load must be fused for the maximum relay current, in order to prevent
the contacts of the output relay becoming welded in the event of a short-
circuit.
❏The level of electromagnetic compatibility conforms to EN 61 326.
❏Run input, output and supply cables separately, not parallel to one another.
❏Sensor and interface cables should be shielded cables with twisted
conductors. Do not run them close to current-carrying components or
cables. Ground shielding at one end, to the TE terminal on the instrument.
❏The TE terminal on the instrument must be earthed. This lead must have at
least the same conductor cross-section as that used for the supply cables.
Grounding and earthing leads must be wired in a star configuration to a
common earth point that is connected to the protective earth of the
electrical supply. Do not loop earth or ground connections, i.e. do not run
them from one instrument to another.
❏Do not connect any additional loads to the supply terminals of the
instrument.
❏The instrument is not suitable for use in areas with an explosion hazard
(Ex areas).
❏In addition to faulty installation, incorrect settings on the controller
(setpoint, data of the parameter and configuration levels, internal
alterations) can also interfere with the correct operation of dependent
processes, or even cause damage. The stability of the actual value that is
produced should therefore be checked. Safety devices should always be
provided that are independent of the controller (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.
❏The measurement inputs of the controller must not exceed a maximum
potential of 30 V AC or 50 V DC against TE.
❏Sensor leads should only be implemented as uninterrupted cables
(not routed through terminal strips etc.).
The electrical connection may only be carried out
by properly qualified personnel