18
The following is a complete list of calibration
symbols:
Code Parameter
tL TC input initial scale value (0 mV)
tH TC input full scale value (50 mV)
t. TC input check
rJ Cold junction compensation
rJ. Cold junction compensation check
PL RTD input initial scale value (0 W )
PH RTD input full scale value (300.00 W )
P. RTD input check.
Now to proceed
1) to start calibration, V2 must be OPEN (see Fig.
11).
2) Switch on the controller. The display will show
"CnF".
3) Push the s pushbutton, the display will show
"CAL".
4) Push the FUNC pushbutton to display the first
calibration code.
5) Depress FUNC pushbutton in sequence until
the desired calibration code is reached.
RTD Calibration only:
If only calibrating RTDs, press FUNC until the "PL"
parameter is displayed and proceed to page 19
(PL) for other instructions.
"tL" - TC INPUT- INITIAL SCALE VALUE
1) Provide connections between calibrator and
controller under test as shown in fig. 12.
2) The display will show "tL.F" (where "F" means
"OFF").
2) Set calibrator to 0.000 mV.
3) Push ▲ or ▼ pushbutton, the display will
change to "tL.n" (where "n" means "On").
4) After 30 seconds, start calibration by pushing
the FUNC pushbutton.
Only the decimal point of the last significant
digit will light to indicate that the controller is
performing the calibration routine.
At the end of this calibration routine, the
controller will go to the next step.
Fig. 12
"tH" - TC INPUT - FULL SCALE VALUE
1) After "tL" is calibrated, the 1601will show "tH.F"
for the full scale value.
1) Set the calibrator to 50.000 mV (full scale
value).
2) Push ▲ or ▼ pushbutton, the display will
change to "tH.n".
3) After 30 seconds, start calibration by pushing
FUNC pushbutton. Only the decimal point of the
last significant digit will light to indicate that the
controller is performing the calibration routine.
At the end of this calibration routine, the
controller will go to the next step.
3
2
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+
Millivolt
Generator
1601-1-0C.p65 5/2/00, 1:45 PM18
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