Ashcroft ATE-2 - Handheld Calibrator - Manual (Page 22)

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SECTION 14 h. TARE FUNCTION
To close a Datalog and prepare the HHC to begin a new Datalog
press the ESC key. The next press of the DATA STORE key will
begin a new Datalog and will continue to record data in the new
log with every subsequent press of the key.
Up to 64 individual logs can be stored in the on board memory
with a total of 16,000 individual records.
The HHC has the ability to Tare (subtract an operator selected
value) from the displayed pressure measurement value of either
one or two installed Quick-Select modules. This function is appli-
cable to pressure measurements only. This is most commonly
required in applications where a pressure pre-load, such as in a
weighing application, must be subtracted from the displayed pres-
sure measurement. If the HHC is being used with two Quick-Se-
lect modules, independent tare values can be entered for each
of the pressure modules. When tare function is active bar graph
displays will indicate actual percentage of full scale pressure not
the tare value. When the HHC is in tare mode the word “tare” will
appear below the engineering units.
There are two methods to select a tare value, automatic and
manual. Automatic Tare Mode will subtract the actual pressure
applied to the module at the time tare function is activated.
Manual Tare Mode allows the operator to enter a pressure value
to be subtracted from the actual pressure applied to the module.
Automatic tare is the default condition. If Manual Tare Mode is
desired go to the section named Program Manual Tare Value
below the next section.
Activate Tare Mode
To activate either Automatic or Manual tare Mode.
When HHC is in Measurement Mode
Press TARE key
Press PORT SELECT key repeatedly to select Channel 1,
Channel 2, or both active pressure modules
Press ENTER
Selected modules are now in Tare Mode. The value displayed is
equal to the actual applied pressure less the tare value.
When TARE function is active the word “Tare” will be displayed
below the engineering units.
SECTION 14 f. DAMPING FUNCTION CONT.
SECTION 14 g. MANUAL DATALOG FUNCTION
CONT.