Viatran DL Series Analog Input Process Meter Instruction Manual
78
Tare (
tare
)
The tare function zero’s out the display. In the case of scale weight, tare
is used to eliminate container weight and provide net weight readings.
There are two tare functions; Capture Tare and Reset Tare.
When the capture tare function is used, the display reading is offset by
the displayed amount to make the displayed value zero. This modified
display value is the net value. The originally displayed value without the
tare offset is the gross value. Both may be chosen as a display option.
Reset tare removes the display offset of the net value, and the gross
and net values become the same until a new capture tare is entered.
Internal Source Calibration (
ICAL
)
The meter is factory calibrated prior to shipment
to read in milliamps and volts depending on the
input selection. The calibration equipment is
certified to NIST standards.
The use of calibrated signal sources is necessary to calibrate the
internal source of the meter. The meter’s internal source is what allows
the user to scale the meter without applying a signal.
Check calibration of the meter at least every 12 months. Each input
must be recalibrated separately.
Notes:
1. If meter is in operation and it is intended to accept only one
input type (e.g. 4-20 mA), recalibration of other input is not
necessary.
2. Allow the meter to warm up for at least 15 minutes before
performing the internal source calibration procedure.
The
Internal
calibration
menu is part of the
Advanced
Features
menu.
1. Press and hold the Menu button for three seconds to access the
advanced features of the meter.
2. Press the Up
arrow button to scroll to the
Internal calibration
menu
(
ICAL
) and press Enter.
0.0
lbs
0.2
lbs
0.2
lbs
Before tare
After capture tare
After reset tare
