Commissioning
4.3 Commissioning and operation
FIDAMAT 6-G
Operating instructions, 07/2006, A5E00478463
4-11
4.3.6
General information on calibration
Note
Calibration is only possible when the device is in the "measure" operating state.
Zero
The zero is calibrated using function 20. Here, the device shows both the setpoint as well as
the actual value.
Single / total calibration
Single calibration means that each measuring range is calibrated with a separate test gas. It
is recommended if the switching ratio of the measuring spans is greater than 1:10.
In total calibration, you only calibrate the leading measuring range (function 22). The other
measuring ranges are "calibrated along" via the switching ratio.
The total calibration is activated or deactivated using function 23.
Select function 21 and carry out the desired calibration. Note that this function can only be
activated if AUTOCAL (function 24) is deactivated. If the total calibration was activated
previously, all measuring ranges are then calibrated.
If you have selected single calibration (total calibration deactivated), repeat the calibration
procedure for every measuring range individually with the corresponding test gases. (In
function 22, a test gas must be entered for every measuring range!)
Zero calibration, span
Apply 30 to 90 l/h (0.5 to 1.5 l/min) of zero gas or test gas to the device. Observe the
required input pressures as you do so.
Calibrate the zero with function 20, and the span with function 21.
See also
Zero calibration (function 20) (Page 5-13)
Span calibration (function 21) (Page 5-13)
Setting setpoints (function 22) (Page 5-15)
Total / single calibration (function 23) (Page 5-15)
Autocal (function 24) (Page 5-16)
Technical data of the FIDAMAT 6-G (Page 7-3)