ScreenMaster RVG200
Paperless recorder 7 Configuration
112 OI/RVG200-EN
7.10 I/O module configuration
7.10.1 Analog inputs
Fig. 7.16 I/O module configuration
Note. The recorder detects the type of module fitted in each position automatically.
Input A1(to D6) Manually fine-tune inputs to remove errors.
Note. If the analog input type is changed (see page 90), the configuration
must be saved to the current configuration before commencing input
adjustment.
2 methods of input calibration are provided:
Input adjust
Sensor calibration
–
–
provides offset and span adjustment to remove
process or system scale errors.
provides an offset adjustment to remove known
sensor errors.
Input Adjust
Actual value
Desired value
1. Adjust the process or simulated input signal to a known value
below 50% of the engineering range.
2. If Actual Value (in engineering units) is different from expected, set
Desired value to the correct value (Offset adjust and Span adjust
values are calculated automatically).
3. Repeat steps 1 and 2 for a value above 50% of the engineering
range.
4. Repeat steps 1 to 3 for each input.
Uncalibrated
input
Input
calibration
Sensor
calibration
Calibrated
input
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