WIKA UT-11 - Manual (Page 19)

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Universal Pressure Transmitter UniTrans
Operation of Transmitters without Display
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: [email protected] · www.wika.de
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5 Operation of Transmitters without Display
5.1 Preparation
This unit can be programmed before or after installation.
• Connect an ampere meter to the device’s output (between terminals I and L+).
• Note that after each action, a brief oscillation/deflection of 20 mA occurs (verifica-
tion of a successful action).
The following functions can be programmed without a display unit:
• Zero point adjustment with a full or empty container (with/without pressure)
• Span adjustment with a full or empty container (with/without pressure)
• Integration time
• Reset to manufacturer’s defaults
5.2 Key Functions (only available for transmitters without display)
An error signal is caused by a current surge (21 mA or 3.6 mA; 5 sec) when
the zero point or span setting fall outside of the sensor’s nominal pressure
range during adjustments with existing pressure. No values are stored.
The keypad becomes inactive after 10 min. of disuse. All settings will de-
fault to previously stored values. Only settings that have been confirmed
with the "OK" function are stored.
Function 1 Function 2
Basic setting,
store span (2 s) Action: upward,
increase value
Basic setting,
store zero point
(2 s) Action: downward,
decrease value
Exit key or pro-
gramming mode
(2 s) Activate keys
(push simulta-
neously for 2 sec.)
Verification (store)
(2 s) Mounting correc-
tion of the sensor
(push simul-
tanously for 2 sec.)
Basic setting
Integration time/
damping (push
simultaneously for
2 sec.) Reset to default
(push simulta-
neously for 2 sec.)