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Calibrating the Sensors
6.4.4 Viewing Calibration History
Parameters
DATE
xx/xx/xx
P
x.xxx µA/ppm
ZERO
x.xxx nA
∆T
x.x °C
History
DATE
xx/xx/xx
P
x.xxx nA/ppm
DATE
xx/xx/xx
P
x.xxx nA/ppm
6.4.5 Calibration-related Messages
36
1. From the Main display, push the
2. Use the
LEFT ARROW
3. Use the
LEFT ARROW
Table 12 Viewing Calibration History
Date of the last calibration. The programmed date is not automatically updated.
Slope value
Offset value
Deviation between theoretical temperature (sensor curve) T
T
:∆T
T
T
=
–
m
h
m
Date of calibration n–1
Value of slope n–1
Date of calibration n–2
Value of slope n–2
Error: ∆T OUT OF LIMITS
The temperature difference between the calibration and the theoretical sensor
response is greater than the authorized limit. Limits: ±20 °C.
Error: OUT OF 4/20 mA
The measured value is out of the programmed scale start and end range for
analog outputs 1 and 2 (PROGRAMMING/mA OUTPUTS/OUTPUT 1 or 2).
Timer Icon appears
When the S4 relay is used as a Timer, a countdown is displayed for the start of the
relay execution cycle. This countdown is expressed in hours:minutes, with the
exception of the last ten minutes, where it is expressed in hours:minutes:seconds.
RIGHT ARROW
key to highlight CALIBRATION. Press
key to highlight HISTORIC. Press
and measured temperature
h
key.
.
ENTER
.
ENTER
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