Customer Service 800-528-7411 or 602-470-1414
Page 20 of 68
An explanation of the selections available from the menu system is listed in the table
below.
MENU
SUBMENU
OPTIONS
STATUS
Available
at turn on
and
Escape
631 RDG
Measured gas concentration in PPM
BOX TEMP
Current box temperature
TIME
Current time
DATE
Current date
WIND DIR
Wind direction (if WIND is enabled in SYSTEM menu)
WIND SPD
Wind speed (if WIND is enabled in SYSTEM menu)
WIND TEMP Wind temperature (if WIND is enabled in SYSTEM menu)
FTM CHK
Use for Functional T
ests of the instrument’s response to H
2
S.
OPTIONAL FUNCTIONAL TEST OF 651/631-X
SAMPLE
INTERVAL
Select a sample interval of:
1, 2, 5, 10, 15, or 30 minutes, or 1 or 2 hours.
4-20 MAX
Set the maximum reading level (in ppm) that will
correspond to a 20mA current from the 4-20mA connection
on the main circuit board. See page
ALRM LVL
XXX.XXX
– Set the signal relay alarm level. Default is 0
DBL CHK
YES, NO
– Set the double check high readings.
Default is YES to repeat reading if a high level is taken.
Only the second reading is saved.
VALV TGL
Toggle valve. Default is 0 (No Toggle)
DO NOT USE THIS MENU ITEM. FACTORY USE ONLY.
REGEN
INTERVAL
Set the periodic regeneration interval.
6, 12, 24, 48 hours. Default is 48 hours.
An interval less than 48 hours will shorten the life of the
gold film sensor in the 631-X.
HOUR
## - Set the hour of the day to initiate the first regeneration.
Default is 00, midnight.
EXAMPLE:
If interval is 12 and hour is 5, the regenerations will be at
5:00 AM and 5:00 PM.
If interval is 6 and the hour is 4, the regenerations will be at
4:00 AM, 10:00 AM, 4:00 PM, and 10:00 PM.