Manual OPTISENS AAM 1050
7
OPTISENS AAM 1050
3.
Electrical connection
ATTENTION
Before connecting the power supply check the information on the nameplate of the device!
Input, output and control lines must be installed separate from each other and separate from power lines!
For inputs and outputs use screened lines and connect the screen on one side only.
The potentiostatic measurement is interference-sensitive. Use only the special screened cables delivered.
When using the relays, mind that with inductive loads, interference must be suppressed. If that is not
possible, the relay must be protected at the terminal block in the converter by a resistance-capacitance filter
or, in case of direct current, by a free- wheeling diode.
Current up to
Capacitor C
Resistance R
60 mA
10 nF 260 V
390 Ohm 2 Watt
70 mA
47 nF 260 V
22 Ohm 2 Watt
150 mA
100 nF 260 V
47 Ohm 2 Watt
1.0 A
220 nF 260 V
47 Ohm 2 Watt
3.1
Connection diagram
Connection
Terminals
Notes
1 = screen
2 = measuring electrode, white*
3 = reference electrode, black*
Metal electrode
sensors
1 - 4
4 = counter electrode, brown*
Pt100
6 - 7
Pt 100, green + yellow
Flow monitor
26+27
Flow monitor, brown + white
Display contrast
Display
Potentiometer to adjust the display contrast
Analog output
11 + 12
11 = +, 12 = - ; max. burden 500 Ohm
Relay 1
14 + 15
Relay 2
16 + 17
Relay 3
18 + 19
Alarm relay
Power supply
20+21+22
check information given on nameplate
RS 485
23 + 24
23 = -, 24 = +,- Jumper A bridged = terminating impedance
activated
Digital input
26 – 27
28
26 = +, 27 = -, external controller stop or lack of water
28 = 24 V DC for inductive proximity switch
*NOTE
In case of using sensors or cables from other suppliers, please refer to the supplier’s documentation regarding color
codes and wiring!
