Siemens SIREC D200, Manual

Page: 99 / 286

43-TV-25-35 GLO Iss.4 Dec 06 UK 93
A5E01001767-04
Power up
Calibration
(Configure > Setup > Edit Setup> General > Factory > Calibration)
Cards will be calibrated in the factory. All ranges are factory calibrated and set to the default
range of +/-12V.
Table 4.6, “Calibration Input range table,” on page 94 .
Date & Type of last calibration is stored in “Maintenance” on page 131.
Analogue In and CJC Calibration can be performed per slot (card). Select the AI or CJC cal-
ibration button to go to the next menu.
AI Calibration
In this menu there is a button for each Analogue Input card fitted in the recorder. Calibration
is done per channel.
Cards may be reset to original ‘factory’ cal, i.e. a card holds two sets of calibration constants
(factory & user) for all ranges.
Factory Cal - The recorder is calibrated in the factory. These are pre-stored calibration val-
ues that cannot be changed by the user. If the recorder is re-calibrated to a User Cal the
factory values can be restored at any time.
User Cal - User calibration can be applied at any time. To meet the accuracy values spec-
ified (see “Input Range Performance Accuracy Table” on page 227.), calibration
source should be accurate to 0.01% full scale or better.
On initial power up the Factory Cal and the User Cal are the same.
The AI Calibration menu displays a button for each Analogue Input card fitted.
• Select the desired slot button and select the Range required to be calibrated from the
drop down list eg.+/-50V.
• Each card has channels numbered 1 to 8. Underneath each channel is the type of cali-
bration.
• Select the button below the corresponding channel number and select the type of cali-
bration from the list, in this case Recalibrate. The Recalibrate icon will appear under
that channel.