Ashcroft ATE-2 - Handheld Calibrator - Manual (Page 26)

24
SECTION 14 l. MIN/MAX FUNCTION
0.11
inH2O PSi
15.29
0.033
mA
Loop supply reset failed
–0.12
in H 2 0
-0.012
PSi
SECTION 14 k. 24 VDC POWER SUPPLY ENABLE
AND DISABLE
Remove the excessive load from the circuit and attempt to activate
the 24v loop power supply via the MENU as described above.
If the excessive load is not removed from the circuit upon activa-
tion, the loop supply will be disabled and the following warning
message will be displayed
Note: A direct short between 24Vdc out and COM terminals will
cause complete shut down of the base unit. Remove shorted leads
and power the HHC on with the power key. Base unit will not be
damaged, however warning messages will not be displayed.
If the user correctly removes the excessive load and resets the
loop supply successfully via the MENU 24v loop supply indicator
turns back on and normal function is restored.
Display the minimum and maximum pressure or temperature
readings measured by the installed modules. This function can
be performed once the HHC has been powered on, module “hot
swapped” into the HHC, or values that were zeroed.
Min /Max function is actively updating the display continuously
once it is activated.
To enter Min/Max mode
Press Min/Max key
Press PORT SELECT key to select Channel 1, Channel 2, or
both modules.
Press the ENTER key
0.10
inH2O PSi
15.34
0.000
mA
Loop supply overloaded
Ꮨƽ