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4. Name and Description of Each Part
4.1. Components
NO
NAME
DESCRIPTIONS
1
Housing
Protects Sensor and PCB Board built in from external environmental change and the Housing shock
2
Main PCB
It amplifies output signal from the sensor and converts and send it as DC 4~20 mA standard output.
Isolation RS-485 network and alarm relay contact signals are outputted. Also, it sends data for the display.
3
Display PCB
It displays data received from main PCB on LCD or OLED and displays the current event status
with power lamp, alarm lamp, trouble lamp.
4
Power/Signal
Terminal
CN1 consists DC18-24 V power supply and DC 4~20 mA standard output connection terminal
(VISO, +24V, mA,-, ETH).
5
Alarm signal
Terminal
CN10 is alarm signal connection terminal, which outputs trouble, alarm1, alarm2 relay contacts.
6
RS-485 signal terminal
CN9 is Isolation RS-485 network signal connection terminal (A, B).
7
Sensor terminal
CN1 is Sensor Connection Terminal. (RD , WH , BK , BE)
8
Power lamp
When power switch turns on, lamp lights on.
9
Trouble lamp
It lights on when there is a fault in the circuit or sensor sensitivity, etc.
[Figure 2. GTD-3000Ex Components]
