Clearing the Stored PPM Log, Alarms & Faults Data
Up to 200 refrigerant gas ppm measurements, and 30 alarm and fault events are stored by the monitor.
To clear stored data, first display the data to be cleared by using the PPM Log, Alarms or Faults function (Pages 15). Next, press and hold down the Right Arrow Keypad button, and then press the ENTER button. A single, long tone should be heard when the data has been successfully cleared.
Entering Custom Refrigerant Calibration Values
In addition to the 24 refrigerant gases available for selection, a custom gas can be added by using the CUST K1, K2 & K3 function. Before using this function, the user must contact the factory and provide information about the gas to be monitored. The factory will then supply values for K1, K2, and K3, which are the coefficients of a polynomial equation that represent the calibration curve of the custom gas.
From the Data Display screen, use the Keypad buttons to place the arrow (>) on the display next to the CUST K1 function. Then press ENTER to display the CUSTOM CAL K^1 screen. Use the Keypad buttons to enter the 1st coefficient value (K1) as received from the factory. Press ENTER to save this value in memory.
Repeat the above procedure to enter the values for K2 and K3.
Select the custom gas for monitoring by using the GASTYPE function (Page 17) and selecting CUSTOM.
Reset to Factory Default Settings
IMPORTANT! Performing this function will wipe out all program parameters, alarms, faults, and ppm log files.
Press and hold down switch SW3 inside the HGMSZ (Page 8). Cycle AC power OFF then ON. Listen for beep and then release switch. If needed, reprogram the HGMSZ to the desired settings.
Factory Default Settings
Parameter | Factory Default |
0.016 mA/ppm | |
Bench Voltage | 4.200 |
Calibration Factor | 1.000 |
Evacuate Alarm | 500 ppm |
Gas Type | |
Leak Alarm | 100 ppm |
Log Interval | 10 minutes |
Silence Timeout | 300 seconds (5 minutes) |
Spill Alarm | 300 ppm |
Squelch | 0 ppm |
Zone Temperature | 25°C |
20 | Instruction |
