Bacharach 6401-0500 Installation And Operation Manual page 40

MGS-250 Manual
Parameter
40
Gas Test Mode
Places the gas detector in gas test mode.
00 Disabled (default)
01 Enabled
When enabled, the display continuously cycles
through the following:
•
CAL is displayed briefly.
•
Next, the gas group number or gas type
(based on product code) is displayed.
•
Then four dashes (----) are displayed.
After gas is applied and the 75 PPM squelch level is
exceeded, the live concentration replaces the four
dashes.
See section 6.4 if using Gas Test Mode to initiate
the calibration procedure.
NOTE: To prevent false alarms, all outputs are
suspended while Test Mode is active. The only live
indication is the 4-digit display.
Once the gas test mode is enabled to perform a gas
test or calibration, the unit will automatically go
offline for a ten minute period after the parameter
list is exited. (This allows time for the test gas to
clear before the unit becomes active)
If no activity occurs for ten minutes, the unit exits
the gas test mode.
Description
6490-9000 Revision 3