BEAMEX TC303, Руководство по обслуживанию

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C - 6 TC305/TC303 - Calibration
5 SECTION A MEASUREMENTS
Turn the MEASURE/GENERATE switch to the position MEASURE.
Use the code 3052 in the CONF menu entry OTHERS to start the calibration of
the A-section measurements. In order to prevent accidental calibration,
TC305/TC303 requests for a security code
S.CODE
?
Start with TC305/TC303 serial number, key in an extra '2' and finally press
q
ENT . For instance to the device with s/n 780, key
7802 ENT
The upper display shows now the measured electrical signal. The lower display
prompts
REF?
For each measurement (mV, V, mA, ohm) carry out the following steps:
1 Select the required measurement (mV, V, mA, ohm) with the up arrow key (key
SEL[8] is numeric in this mode).
2 Connect the required calibration signal to the selected terminals. Use 4-wire
connection with resistors.
3 Key in the correct value of the calibration signal or resistance and press
q
ENT
when the measured value has been stable for more than 10 seconds.
If there were not at least 21 successive readings within certain limits before you
pressed
q
ENT , TC305/TC303 flashes
NOT
STABLE
In this case, make sure that the reading is stable and press
q
ENT again.
If there are more than one calibration point in the following table for the selected
measurement, repeat the steps 2 and 3 for each point. Calibrate the points from
the highest point to the lowest. Otherwise the error message
RANGES
DIFFER
may flash. In this case, use a bit lower calibration signal or calibrate first the
higher point.