Factory Calibration (Manufacturer Trims) - Siemens 7MF4033 series User Manual

UMSITRPDS3-1
1. Determine the output currents required to compensate for the external inaccuracy.
2. Connect a reference milliammeter to the current terminals.
3. In the Online menu, press 3 Device Setup.
4. In the Device Setup menu, press 2 Diagnostics/Service.
5. In the Diagnostics/Service menu, press 4 Trim.
6. In the Trim menu, press 3 Trim Analog Output.
7. In the Trim Analog Output menu, press 1 D/A Trim. A warning will be displayed: Loop should be
removed from automatic control. Press OK to continue.
8. Connect a reference digital milliammeter to the transmitter current terminals and press OK.
9. A "Setting field device output to 4 mA" message will appear. Press OK to continue.
10. Type a new current output value that corrects for the external inaccuracy (e.g. 4.001). Press ENTER
to continue. A query "Field device output 4.001 mA equal to reference device?" Press 1 Yes or 2 No
as appropriate.
11. A "Setting field device output to 20 mA" message is displayed. Press OK to continue.
12. Type a new current output value that corrects for the external inaccuracy. Press ENTER to continue.
13. A query "Field device output 20.000 mA equal to reference meter" appears? Press ENTER to
continue. A confirming message displays followed by a "Loop may be returned to automatic control"
message. Press OK to return to the Trim Analog Output menu.

6.4.16 Factory Calibration (Manufacturer Trims)

The factory calibration can be recalled (restored) in four steps.
•
Restore the field current adjustment.
•
Restore the field sensor zero adjustment (position correction)
•
Restore the field pressure corrections (zero adjustment and sensor adjustment)
•
Restore field selected parameters relevant to measured value processing, such as zero full scale,
electric damping, display unit, current adjustment, zero adjustment (position correction, sensor
adjustment, measuring speed, alarm current limits, alarm setting, and overflow current ranges.
November 2005
WARNING
Explosion can cause death or serious injury.
Only a certified ammeter may be used in intrinsically
safe circuits.
In a Division 1 area, where an explosion-proof rating is
required, remove power from the transmitter before
removing either enclosure cap.
On-Line Operation
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