Specifications

Multi-Zone Gas Monitors
P/N: 3015-5074 Rev 10 v
4.4.1. Functional Overview ............................................................................................................. 33
4.4.2. Responding to Alarms .......................................................................................................... 34
4.4.3. Alarm Detail Screen ............................................................................................................. 34
4.4.4. Acknowledging Alarms ......................................................................................................... 35
4.4.5. Silencing an Alarm ............................................................................................................... 35
4.4.6. Clearing the Alarm Event Log .............................................................................................. 36
4.5. System Faults .................................................................................................................................... 36
4.5.1. Functional Overview ............................................................................................................. 36
4.5.2. Navigating to the Fault Screen ............................................................................................. 37
4.5.3. Critical Faults ........................................................................................................................ 37
4.5.4. Non Critical Faults ................................................................................................................ 38
4.5.5. Reset to Factory Default Settings ........................................................................................ 38
4.5.6. Clearing System Faults ........................................................................................................ 38
4.5.7. Viewing Fault Log ................................................................................................................. 39
4.5.8. Viewing Flow Log ................................................................................................................. 39
4.6. The Trend Screen ............................................................................................................................. 40
4.6.1. Navigating to the Trend Screen ........................................................................................... 40
4.7. The Calibration Screen ...................................................................................................................... 40
4.7.1. Overview............................................................................................................................... 40
4.7.2. Navigating to the Calibration Screen .................................................................................... 41
4.7.3. Calibration Procedure (HGM and AGM Only) ...................................................................... 41
4.7.4. Adjusting Calibration Factor (HGM and AGM Only) ............................................................ 41
4.7.4. CO
2
Atmospheric Concentration .......................................................................................... 42
4.7.6. Programming New Gases (HGM Only) ................................................................................ 42
4.8. Zone Hold Mode .................................................................................................................................. 43
4.9. The Diagnostic Screen ...................................................................................................................... 44
4.9.1. Navigating to the Diagnostic Screen .................................................................................... 44
4.9.2. Diagnostic Screen Overview ................................................................................................ 45
SECTION 5. MAINTENANCE.................................................................................................................... 47
5.1. Replacement Parts Overview ............................................................................................................ 47
5.2. Replacement Parts and Optional Accessories .................................................................................. 48
5.3. Troubleshooting ................................................................................................................................. 50
APPENDIX A. RECOMMENDED REFRIGERANT GAS ALARM SETTINGS ........................................ 53
APPENDIX B. RS-485 COMMUNICATIONS PROTOCOL ..................................................................... 55
B.1. Overview ............................................................................................................................................ 55
B.2. MODBUS RTU Protocol .................................................................................................................... 55
B.3. MZ MODBUS RTU Operation ........................................................................................................... 55
B.3.1. Overview............................................................................................................................... 55
B.3.2. Protocol Details .................................................................................................................... 55
B.3.3. MZ Monitor Polling ............................................................................................................... 56
B.3.4. Network Topologies .............................................................................................................. 56
B.3.5. Key Comm Protocol Parameters .......................................................................................... 56
B.3.6. Summary of Registers .......................................................................................................... 57
B.3.7. System Data Register 0x0010 (16 Dec) (R/W, 54 Bytes) .................................................... 58
B.3.8. Status Register 0x001 (17 Dec) (R/W, 10 Bytes) ................................................................ 58
B.3.9. Fault Code Table .................................................................................................................. 59
B.3.10. Zone Data Register 0x12xx (R/W, 78 Bytes) ....................................................................... 59
B.3.11. Alarms and Alarm Acknowledge .......................................................................................... 60
B.3.12. Date Time Register 0x0015 (21 Dec) (R/W, 14 Bytes) ........................................................ 60
B.3.13. Sensor Data Register 0x0016h (22 Dec) (R, 82 Bytes) ....................................................... 61
B.3.14. Release Zone Hold Register 0x0017h (23 Dec) (W, 10 Bytes) ........................................... 61
B.3.15. Hold Zone Register 0x0018h (23 Dec) (W, 10 Bytes) .......................................................... 61
B.3.16. MZ Hold Mode ...................................................................................................................... 61