GRAPHTEC GL820 Service Manual page 34

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(5) Press the [ENTER] key to start the Setup3 (RTD temp.) operation.
(6) The
"0 ohm :
[START]" message is displayed at the location shown above.
(7) Connect the reference 0 Ω resistor to the input terminals of channel 20.
(8) Press the [START] key and then wait until the
Replace the reference resistor to correspond to one of the displayed resistors in the following table and
then press the [START] key.
Message
0 ohm
350 ohm
2500 ohm
(9) Repeat step (8) by sequentially to 350 Ω and 2500 Ω.
(10) The "EEPROM : [ENTER]" message appears when the 2500 ohm setup was completed.
(11) Press the [ENTER] key to begin writing the new Setup data to the EEPROM.
(12) After the setup parameters have been registered to the EEPROM, the display closes and returns to
normal mode.
GL820-UM-251-9370
Message
"350 ohm :
Reference resistor
0 Ω
350 Ω
2500 Ω
Message
4-14
4. SETUP PROCEDURES
[START]" message appears.

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