Application; Type 202550 - JUMO 202550 Operating Instructions Manual

3 Application

3.1 Type 202550

Description
Inputs
Calibration
procedure
Standard
signals
Display
Outputs
6
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).
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.
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
- for redox voltage
- for conductivity
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
- for free chlorine, chlorine dioxide and ozone JUMO Typ 202630
- JUMO pressure transmitters
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.
The instrument has a maximum of 5 outputs
Out- Stand- Description / configurable
put ard
K1 yes Controller / controller off, limit controller, pulse
width controller, pulse frequency controller,
modulating controller with P, PI, PD or PID
action
JUMO type 202701
JUMO type 202702
JUMO type 202754/xx-xxx/263
JUMO dTRANS O2 01
Output
relay, make