BEAMEX TC303, Service Manual

Page: 28 / 57

C - 8 TC305/TC303 - Calibration
6 RESISTANCE SIMULATION
Turn the MEASURE/GENERATE switch to the position GENERATE.
Use the code 3053 in the CONF menu entry OTHERS to start the calibration of
resistance simulation. 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 '3' and finally press
q
ENT . For instance to the device with s/n 780, key
7803 ENT
For measurement of the simulated resistance, use a resistance measurement
equipment with measurement current 1 mA
±
10 %. Use four wire connection
between the measuring equipment and TC305/TC303 two leftmost ohm
terminals. Alternatively you can use separate equipment for current sourcing and
voltage measurement. In that case you have to calculate the resistance values
from the current and voltage readings. The required test equipment are specified
in Chapter 2.