Do not proceed through this section unless there
is a definite need to re-calibrate the controller.
Otherwise, all previous calibration data will be
lost. Do not attempt re-calibration unless you have
appropriate calibration equipment. If calibration data is
lost, you will need to return the unit to your supplier
who may charge you a service fee to re-calibrate.
Entering calibration mode will break the control
loop. Make sure that the system will tolerate the
application of calibration mode.
Equipment needed for calibration:
1. A high accuracy calibrator (Fluke 5520A Calibrator
recommended) with the following functions:
0-100mA millivolt source with ± 0.005% accuracy
0-10V voltage source with ± 0.005% accuracy
0-20mA current source with ±0.005% accuracy
0-300 ohm resistant source with ±0.005% accuracy
2. A test chamber providing 25°C - 0°C temperature
range
Equipment needed for automatic calibration:
1. A switching network (SCANER 80, optional for auto-
matic calibration)
2. A calibration fixture equipped with programming
units (optional for automatic calibration)
3. A PC with calibration software ETR-Net and Smart
Network Adapter SNA10B (optional for automatic cali-
bration)
Since each unit needs 30 minutes to warm up before
calibration, calibrating units individually is not efficient.
An automatic calibration system for small quantities as
well as for unlimited quantities is available upon
request.
The calibration procedures described in th following are
step by step manual procedures. Apply Enter Key
(press for 8 seconds) to enter the calibration mode.
See Figure 6.1 below.
Section 6: CALIBRATION
!
!
Normal Mode
REF
CJG
CJTL
ADG
Ado
Setup Mode
SR
STEP 6
STEP 5
STEP 4
STEP 3
STEP 2
STEP 1
RESET
RESET
RESET
RESET
RESET
RESET
RESET
4 seconds
4 seconds
4 seconds
4 seconds
4 seconds
4 seconds
4 seconds
4 seconds
Figure 6.1
Flow Chart for Manual
Calibration
19
