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48 K400 Issue No. 1
5CALIBRATION
The DBC series of temperature calibrators must be considered as reference
standard: these instruments must be periodically tested and calibrated with a
recommended recalibration period of 12 months. The Service Centres of GE
provide a global calibration service to National and International standards.
Calibration must be carried out by the suitably qualified calibration technicians. The
calibration procedure requires a high-accuracy reference standard (at least 5 times
better than the DBC accuracy) with direct traceability to National or International
Standard (SIT, UKAS etc.).
Press the # and the menu keys to select the set-up display.
Use the keys to select CALIBRATION and press ent.
Important Note
A PIN code protects the calibration facility from unauthorised use. Each instrument,
on delivery, contains the factory set PIN (4321). To continue protecting the
calibration facility, the PIN code should be changed as soon as possible.
Enter the correct PIN at the ENTER CODE prompt and press ent. After entering
the PIN number, calibrate the instrument by following the on-screen instructions.
• Calibration of the standard Reference Probe Input
In the calibration menu, using the cursor keys select the REF. RTD INPUT and
press ent. The display enables the setting of the resistance test value (true value).
SYSTEM SETUP
CALIBRATION
ENTER CODE
ENTER CODE
CALIBRATION
REF. RTD INPUT
CALIBRATION
mV (1)
mV (2)
REF. RTD
BLOCK