Fox Thermal FT3 - Page 59

When the output is set to Alarm and there is no alarm condition, the output will be on (0 volts). When
an alarm is active, the output is turned o (24 volts).
F1 F2 F3 F4
Enter the value for the limit by pressing CHG (F1) and then OK (F4). A value of 0 disables the alarm.
NOTE! There is only one output to operate as a pulse output or an alarm output. Both
cannot operate at the same time.
Contact Input Settings
From the SET PARAMETERS menu, press I/O (F1) and then I/O (F2) and then INP (F1) key to select
input. The following menu will display:
F1 F2 F3 F4
Press NXT (F1) until the correct selection is shown and then press OK (F4) to accept the setting.
Selections are:
Not used
Tot Reset = Reset the totalizer
Switch Crv = Switch between calibration curve 1 and curve 2 (only if 2 gas curve ordered)
Press EXIT (F4) repeatedly until you exit programming mode.
FT3 with 2 Gas Curves
This section describes added features to the standard FT3 ow meter when using the 2 gas curves
rmware option. The 2 Gas Curves rmware allows the use of two dierent calibration tables when
running with dierent gases. One of two methods can be used to switch between the two calibration
curves:
1) Use of Contact Input:
When the contact input is programmed for curve switching, an open contact will select curve #1 and a
contact closure will select curve #2.
2) Use of the Keypad:
If the contact input is not programmed for curve switching, pressing F2 and F3 simultaneously will
prompt an operator to manually switch curve upon entering a password and conrming the action by
pressing the appropriate key.
HiFloAlm=500 SCFM
CHG OK
INP=Not Used
NXT OK
Operation | 59
Model FT3
Operation