C
Universal Pressure Transmitter UniTrans
Operation of Transmitters with Display
Published 16.2.04
Subject to change due to technical modifications. © Copyright WIKA Alexander Wiegand GmbH & Co. KG / BRD
WIKA Alexander Wiegand GmbH & Co. KG · Alexander-Wiegand-Str. · 63911 Klingenberg ·
(09372) 132 - 710 · Fax - 706 · E-mail: support-tronic@wika.de · www.wika.de
69
6.5.2 Main Menu: Calibration of zero and span
A single pressure value is set for the zero point or the span end-point
within the sensor’s nominal pressure range, and assigned to the associ-
ated output current signal when making adjustments with existing pres-
sure. An error signal occurs when the existing pressure lies outside of
the sensor’s nominal pressure range. The value is not saved in this
case.
A mounting correction should be performed before or after making an
adjustment without pressure (dry adjustment) (see 6.5.6). The sensor
must therefore be placed in the reference position for the measurement
(installation site) without pressure on the diaphragm.
A mounting correction is unnecessary when making an adjustment with
pressure (wet adjustment). Otherwise, the mounting correction must be
performed before saving the zero point and span end- point.
A test / correction of the zero point is suggested after adjusting the
span in order to maintain optimum accuracy.
MAIN MENU
CALIBRATION
CALIBRATE
WITH PRESSURE
CALIBRATE
RANGE
CALIBRATE
SET ZERO
CALIBRATE
SET SPAN
CALIBRATE
WITHOUT
PRESSURE
CALIBRATE
DEFINE ZERO
CALIBRATE
DEFINE SPAN
DEFINE ZERO
DEFINE SPAN
Adjustment
Zero Point
Adjustment
Span
Adjustment zero point via entry
of a pressure value within the
nominal pressure range
Adjustment span via entry
of a pressure value within the
nominal pressure range
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