Mains connection
Connect phase to terminal (P), neutral to terminal (N), and earth to earthing
terminal.
Relays
There are four relays (REL1...REL4) with voltage-free contacts. Connect their two
contacts in series with the load. The ratings of the connected load should lie
between 12...250 VAC, maximum 1 A.
Inputs
The measuring electrodes should be connected to the coaxial connectors CH1 or
CH2. Automatic temperature compensation and measurement are possible by
connecting a Pt1000 thermocompensator to the coaxial connectors °C1 or °C2.
Without compensator, the manual temperature compensation is automatically
switched on.
•
Avoid ground loops by immersing an earthing rod in the process liquid close to the
electrodes. Connect it to terminal (MASS)!
•
Always cover the unused input connectors with the supplied protection hoods!
Analogue outputs
Two recorders (4-20 mA), one for each channel, can be connected to the (+) and
(-) terminals of (OUT1) and (OUT2). Max. impedance = 300 Ω.
1. Press SET.
2. Select [4-20 mA] and press OK.
3. Select the desired range and press OK.
4. Select the desired minimum level corresponding to a 4 mA recorder output and
press OK.
5. Select the desired maximum level corresponding to a 20 mA recorder output and
press OK.
Language
1. Press SET.
2. Select [SYSTEM] and press OK.
3. Select [LANGUAGE] and press OK.
4. Select the desired language and press OK.
Contrast
1. Press SET.
2. Select [SYSTEM] and press OK.
3. Select [CONTRAST] and press OK.
4. Adjust the contrast and press OK.
Date and time
1. Press SET.
2. Select [SYSTEM] and press OK.
3. Select [DATE/TIME] and press OK.
4. Select [MODIFY] and press OK.
5. Adjust date and time and press OK.
Password
1. Press SET.
2. Select [SYSTEM] and press OK.
3. Select [PASSWORD] and press OK.
4. A private code can be programmed to avoid undesired access to the
instrument. Select [YES] and press OK to enter your secret sequence of 5
keys.
(R3620, R3630 only)
Installation of the instrument
2