Fox Thermal FT3 - Page 61

Two totalizers (Total 1 and Total 2) and two elapsed time counters are available on the display and
through the USB serial communication. The reset function will reset all totalizers and elapsed time
counter to zero.
In the event of a power failure, the software will remember the last curve in use. Upon powering up
again, the FT3 unit will continue to use that curve.
Switching between gas curves will require a password unless the password is set to "0", which disables
it. The calibration certicates for order with 2 gas curves will identify which gas is Gas 1 and Gas 2.
When measuring in mass units, a density value must be entered for each gas curve.
Programming Densities for Curve 1 and Curve 2
When the selected ow unit is mass/time, two dierent densities will be used for each curve if the
meter has been programmed for 2 gas curves. To change the densities:
Go to the unit menu following "Unit Settings" section.
F1 F2 F3 F4
DNS1 is the density associated with curve 1. Change it as needed and press OK (F4).
F1 F2 F3 F4
DNS2 is the density associated with curve 1. Change it as needed and press OK (F4).
Programming 4-20mA settings for Curve 1 and Curve 2
When the meter has been programmed for 2 gas curves, 2 sets of 4-20mA settings for ow rate are
used. To program these settings:
Go to the 4-20mA setting following the "Analog 4-20mA Settings" section.
F1 F2 F3 F4
20mA is the upper limit associated with curve 1. Change it as needed and press OK (F4).
DNS1 = 0.9876
CHG OK
DNS2 = 1.2876
CHG OK
20mA = 500SCFM
CHG OK
Operation | 61
Model FT3
Operation