Computer Weld GTFM IV, Operation & Installation Manual

Page: 10 / 26

Test time that the flow must be continuously
T###
out of limits before activating the fault relay
(0.01 seconds).
P###
The peak gas flow value detected (cfh/lpm)
The peak gas flow value detected (cfh/lpm)
M###
that when reached, will provide a low gas volume
fault indication (Flashing "G" on display).
(0 - 255 cubic ft/liters)
V###
The current volume of gas in the cylinder.
(0 - 999 cubic ft/liters)
The total volume of gas used based
U### on actual gas flow rates and time.
(0 - 999 cubic ft/liters)
Where: ### is the current value for the selected parameter.
After displaying the last parameter, the GTFM will return to the normal display mode.
If a
"MODE" switch function is not activated within 20 seconds, the GTFM will
automatically return to the normal display mode.
3.4 Battery Specifications
The portable GTFM is supplied with an internal, rechargeable battery. The battery
will operate the GTFM continuously for approximately 2 hours when fully charged.
The supplied plug-in the wall transformer will recharge the battery in approximately 8-
10 hours. The GTFM can be operated while charging the battery. When using the
GTFM in battery powered mode the display will automatically clear and a
"." will be
displayed. This is used to conserve the battery when the GTFM is not measuring
actual gas flow. The low power mode will be activated after approximately 25
seconds of no gas flow readings. As soon as gas flow is detected the normal display
will return.
6