2
GA-180
Gas Detector
Operation Manual
Table of Contents
I.
Installation
A.
Monitor
Installation
..................................................................................3
B.
Sensor
Installation
.....................................................................................3
C. Battery Backup Installation .......................................................................4
II.
Operation
A. Navigating the Controller..........................................................................9
B. Operating Screens and Settings ................................................................9
C.
Confi guring a Sensor Channel ................................................................10
D. Installing and Confi guring Temperature .................................................16
E. Alarms and Outputs ................................................................................16
F.
Modbus
Communication
.........................................................................20
G. Response Checks (Bump Testing) ..........................................................20
H.
Data
Logger
............................................................................................21
III. Troubleshooting
A.
Installation
Check
...................................................................................22
B. Symptoms, Likely Causes, and Suggested Responses ............................22
C. Explanation of Responses .......................................................................23
Figures
1a. Sensor Installation (heavy gases) ............................................................3
1b. Sensor Installation (light gases) ..............................................................3
2. Remove
Calibration
Cap
.........................................................................4
3. Wiring Diagram (inside of door) .............................................................5
4. GA-180
Controller
Electronics
...............................................................6
5. Pinout Diagrams for MB108 and MB123 ...............................................7
6. Pinout Diagrams for MB122, MB141, and MB101 ................................8
7. Calibration
Cap
.....................................................................................12
8. Sensor and Calibration Kit ....................................................................12
9. GA-180
Operating
Screens
...................................................................13
10. GA-180
Confi guration Screens .............................................................14
11. GA-180
Modbus
Confi guration and Node Enable Screens...................15
12. External Alarm Light and Horn .............................................................19
13. Bump Testing (Chlorine Gas Example) ................................................20
Tables
1. Example
Controller
Confi gurations ........................................................6
2. Standard Ranges For Hydro Instruments Gas Sensors ..........................11
3. Relay Options for Common Relays (33 & 34) ......................................17
4. Relay Options for Sensor Relays (1-32) ...............................................17
