NO
NAME
DESCRIPTIONS
10
Alarm1 lamp
It lights on when gas leaks and it exceeds Alarm1 level.
11
Alarm2 lamp
It lights on when gas leaks and it exceeds Alarm2 level.
12
Function key
During parameter setting, it changes to program mode when it is contacted with magnet-bar for
2 sec or longer. (Program mode, Calibration mode, Test mode, etc.) Also, it is used to enter and
set an arbitrary data.
13
Reset key
To cancel or return to the previous status during Parameter setting, use the Magnet Bar and
touch once. (Each touch returns to the previous status by one unit.
14
↑(Up) key
During conversion of mode or number, use the Magnet-Bar and touch once. Each touch
converts or increases displayed value by one unit. (Converts to the next level)
15
↓(Down) key
During conversion of mode or number, use the Magnet-Bar and touch once. Each touch
converts or increases displayed value by one unit. (Converts to the previous level)
16
External earth
- It is an external ground for protection from external noise or strong electric field.
- Use a conductor that is 4 mm or longer when coupling ground line.
17
Mount hole
Hole to fix the gas detector on external wall or other installation sites.
18
Cover fixed screw(M4)
After assembling detector housing body and cover, they are fixed with hex lens bolt to prevent
detachment by external shock.
19
Sensor thread
It is a mounting for gas sensor (detector).
20
Cable inlet
It is provided to supply power and inlet for measured output signal of the gas detector during
installation work. As default, PF 3/4” is provided.
21
Internal earth
It must be grounded to inside of detector for protection from external noise or strong electric field.
Use a conductor that is 4 mm or longer when coupling ground line.
22
RS-485 Module / HART
Module (Option)
It is a connector for Isolation Type RS-485 and HART network modules to communicate with PC
or PLC.
To run RS-485 network, network address must be configured. Default is 1. To run HART
network, Polling-Address and Tag No., etc. must be configured.
23
Relay Contact Type Selection
Jumper
It is constructed to select A or B contact.
When it is not in ENERGIZER MODE, it operates in A contact (Normal Open) mode or B
contact (Normal Close) mode when Jumper is connected to a part marked as A silk or B silk,
respectively.
In contrast, when it is in ENERGIZER MODE, connecting Jumper to A operates in B contact mode
and connecting Jumper to B operates in A contact mode.
24
Warning Light
Connector
It is a connector connected when a warning light is used. (Option)
25
Program
Connector
It is a connector for downloading the program for the product.
[Table 1. GTD-3000Ex 구성요소 설명]
4. Name and Description of Each Part
GTD-3000Ex
Instruction Manual