6 Accuracy check
CPM 500 Electronic Peak Pressure Indicator
36
6.3 Example of displayed CPM 500 values during pressure check
Indicated pressure [bar] at calibrator
Displayed pressure [bar] at CPM
500
Dev/-2.5
0
0
0
100
99
1
200
198
2
Note:
The max. acceptable difference between adjusted pressure at pressure calibrator by ambient (20-25°C)
temperature and displayed static pressure at CPM 500 is +/- 2.5 bar. By increasing pressure difference we
emphasize to send CPM 500 unit to HEINZMANN workshop for new adjustment and calibration.
The accuracy of the CPM 500 unit acc. technical data is +/- 0.5% full scale (0…300 bar) between adjusted
temperature range of 50°C- 200 °C.
Fig.19: Example of calibration check diagram in Excel program
6.4 Disconnect CPM 500 from pressure calibrator
The thompson adaptor of CPM 500 must be dismounted from adaptor of pressure calibrator. After disconnection
the thompson adaptor incl. gas channel of HTT cylinder pressure sensor must be cleaned from oil by using
pressurised air.
