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4. Name and Description of Each Part
No
ITEMS
SPECIFICATION
1
Housing Body
Protects PCB Board built in Sensor and Housing from external environmental change and shock.
2
Housing Cover
It is assembled with Detector Housing Body.
Top surface is built with circular glass to enable monitoring of measurement displayed on LCD.
3
MAIN PCB
Amplifies fine outputs generated from Sensor Element to transmit
a converted output in 4~20 mA DC standard. It sends data to display part.
4
Display PCB
Displays data sent from MAIN/ Terminal (Transmitter) PCB on LCD and
displays power status with a power lamp.
5
Power/Signal Terminal
CN8 consists DC18V~31 power supply and DC 4~20 mA standard output
connection terminal (VISO, +24V, mA, GND, ETH).
6
Sensor Terminal
CN4 is Sensor Connection Terminal.
7
Power LED
Lamp that turns on upon power supply.
8
Function Key
It is used to enter function setting mode from gas measuring mode by contacting magnet-bar for
2 sec or longer. It is also used to save changed data from function setting mode.
[Figure 2. GTD-2000TxW Components]
4.1. Components