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6. Commissioning, operation
Configuring the sampling rate
Defines the frequency with which the pressure is measured and the indication is refreshed.
The options are 0.5, 1, 3 and 10 measurements per second. The shortest response time is
10 measurements per second.
TARE (setting Tare)
Using this option you can set the constant offset value which will be subtracted from the
measured pressure. If, for example, TARE is set to 30 bar and the measured pressure is
37 bar, the measured value displayed will be 7 bar. A pressure of 27 bar would then be
displayed as -3 bar. The TARE value is set manually using the ▲ and ▼ keys, it depends on
the engineering units and the resolution selected for the indication. The TARE value can be
set to the maximum scale range. The progress bar indication always indicates the actual
pressure in relation to the entire measuring range, irrespective of the Tare setting. This is
performed for safety reasons so that when "0" is displayed, it can still be shown that there
is a corresponding pressure at the pressure gauge.
Function lock
Access to adjustable parameters can be partially deactivated, once they are set, to prevent
unauthorised changes to the configuration. This is accomplished through a password-
protected "supervisor mode". Press the Enter key to access the Supervisor Mode or the
CONFIG key to return to normal operation.
6.2 Supervisor mode (Control mode)
As soon as the "FUnC LOCK" message is displayed, press the Enter key. The 0PWRD
message appears on the pressure gauge display. The password for the Supervisor Mode is
101. It is entered using the ▲ and ▼ keys. If a key is held pressed, the display scrolls more
quickly and the settings can be entered faster. The password is factory set and cannot be
changed.
1. The CPG1000 is factory set in such a way that access to all settings is enabled and all
settings can be changed.
2. In the Supervisor Mode, any parameter can be locked or unlocked using the ▲ and ▼
keys. Parameters that should not be freely accessible are locked using the LOG option
and unlocked using the UnLOC option.
3. The functions that can be locked or unlocked are:
Zero function (enable/disable)
■
Set pressure units (enable/disable)
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Setting of the automatic power off (enable/disable)
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Damping settings (enable/disable)
■
Setting of the sampling rate (enable/disable)
■
Tare setting (enable/disable)
■
User-defined engineering units (set scale factor)
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WIKA Operating Instructions Model CPG1000
GB
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