20 AO2000-LS25 LASER ANALYZERS | OI/AO2000-LS25-EN REV. D
… 2 Use in potentially explosive atmospheres in accordance with ATEX and IECEx
… Electrical connections
Terminal layout
Transmitter unit – signal cable to receiver unit
Signal
—
RU Temp +
MODSQ +
RU GND +
RU GND −
Direct −
2. Harmonic −
Servo +5 V*
Table 8: Transmitter unit – signal cable connection assignment
* Only connected for devices equipped with option “Span check with internal
sealed cell”. This option is only available on request.
Signal from embedded receiver temperature sensor
Modulation signal from transmitter to receiver (used
for detection of 2. harmonic)
Power supply to receiver unit
Direct laser transmission signal from receiver detector
ond harmonic signal from receiver
Control of servomotor moving sealed cell
Table 9: Description of signals
Note
The voltage for alignment purposes (see Setting the maximum
transmission on page 48) is also available at plug J14.
Receiver unit – signal cable
Table 10: Receiver unit – signal cable connection assignment
* Only connected for devices equipped with option “Span check with internal
sealed cell”. This option is only available on request.
Transmitter unit – power supply / analog inputs
-36 V in
to 36 V
DC from power
supply unit
V in
V from the power supply
Table 11: Transmitter unit – connection assignment for power supply / analog inputs
* Factory mounted cables may be replaced.
J6 – Power supply from power supply unit to transmitter unit.
All 3 power pairs should be wired to ensure even current flow.
External temperature and pressure sensors can be connected
inside the transmitter connection box to J5 terminals 1 to 8.
To Next Page
Loading...
Need help?
General
