IFM PG1705 handleiding

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Handleiding

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PG17xx Electronic manometer
38
10.4.5 Zero calibration
If there is a systematic deviation between the measured value and the actual process value during
pressure measurement, this measurement inaccuracy can be corrected using the correction factor
[coF.P].
[coF.P]: parameter for manual setting of the correction factor
[tcoF]: parameter for teaching the correction factor
The internal zero point is shifted by the set value.
Changing [coF.P] or [tcoF] affects the output signal.
u Readjust [ASP] and [AEP] if necessary.
1
2
MEW
105 %
V1
V0
V2
100 %
95 %
Fig.19: Zero-point calibration (calibration offset)
1: Output signal
2: Process value
MEW: Final value of the measuring range
V0: Measurement characteristic at factory setting
V1: Measurement characteristic after offset by +5% of measuring range end value
V2: Measurement characteristic after offset by -5% of measuring range end value
Setting range:
-5 %...+5 % of the measuring range end value (MEW)
For PG1709: -5 %...+5 % of the measuring span (-1000 mbar...+1000 mbar)
The parameter is reset to the factory setting both via an application reset and a back-to-box
reset.
10.4.5.1 Parameter setting via unit keys: Zero calibration
u Call up the menu [EF] > [CFG].
u Select [coF.P] and set the value.
w The internal zero point is shifted by the set value.
10.4.5.2 Teach via device keys: Zero-point calibration
u Maintain the plant pressure constantly at 0.
u Call up the menu [EF] > [CFG].
u Select [tcOF] and set [Yes].
w The current measured value is taken as internal zero point if the deviation lies within a range of
±5% of the final value of the measuring range.

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Productinformatie

MerkIFM
ModelPG1705
CategorieNiet gecategoriseerd
TaalNederlands
Grootte4616 MB