Siemens FIDAMAT 6 - Calibration procedures

Operation
7.6 Calibration
FIDAMAT 6
Operating Instructions, 01/2019, A5E00222135-04
73
Zero gas: Synthetic air (free of hydrocarbons)
Step
Procedure
Function
Input
Comment
1 Select start-of-scale and full-
scale values of measuring
range
41 0 – 20 ppm
2 Enter setpoints for zero and
span
22 Zero point: 0 ppm
Span: 15 ppm
Take inlet pres-
sures into account
(see "Technical
specifications
(Page 167)")
3
Calibrate the zero point
20
4
Calibrating the span
21
b) Detection of hydrocarbons in air
Measuring range: 0 – 50 ppm C3
Calibration gas: 90 ppm methane in nitrogen (6.0)
Zero gas: Nitrogen (free of hydrocarbons)
Step
Procedure
Function
Input
Comment
1 Select start-of-scale and full-
scale values of measuring
range
41 0 – 50 ppm
2 Enter setpoints for zero and
span
22 Zero point:
0 ppm C3 Span:
30 ppm C3
90 ppm C1 yields
30 ppm C3
3
Calibrate the zero point
20
4
Calibrating the span
21
Note
The
operator input options of the named functions are described in detail in "Functions".