Maintenance
122
Modline 5
Using the ModView Calibration software (not available for M56). This software is for sale and
allows you to calibrate the Modline 52, 5G, and 5R as long as the calibration does not require a
change of more than 30% of the range. You basically need a black body and while the instrument
is aimed at the black body you allow the software to set the calibration of the instrument. You
only do one set point with the software but you can make as many checks as you want.
The fourth method is to use a sensor that is titled a transfer standard. This is a Modline 5, usually
the same model as the customers equipment and it is specially calibrated at 10 specific points
on the temperature scale of the instrument. A NIST certificate of calibration is furnished with
the instrument. With the transfer standard you also get the ModView calibration software. You
aim the transfer standard at the black body and read and record the temperature that is
indicated on the transfer standard. By using the transfer standard you eliminate any potential
errors that may have occurred in the black body such as a defective thermocouple or an
inaccurate cavity. Next, you take the instrument to be calibrated and aim it at the black body
and with the software install the corrected calibration temperature. Again it is a one point
calibration but you can check as many points as you want to insure the best accuracy.
7.5
Measurement Condition Displays, Error Codes and
Troubleshooting
The Modline 5 displays word messages on its rear panel display to indicate Sensor diagnostic results.
Below are explanations of the reported measurement status and error codes.
Measurement status displays for Out of Range and Invalid measurement conditions are defined as
follows
LOW.
Conditions do not allow measurement because the infrared temperature signal is too low.
The target temperature is too low for the range of the Sensor.
HIGH
Conditions do not allow measurement because the infrared temperature signal is too high.
The target temperature is too high for the range of the Sensor.
INV
Measurement Conditions are invalid for two color ratio temperature measurement.
When the Invalid Alarm (iALM) function is set to ON, this measurement condition
becomes an alarm and triggers the Alarm relay and the ALARM word on the Sensor rear
panel.
If INV is the only Alarm, pressing the
▲
pushbuttons will show no other Error
Codes.
The above conditions may relate to improper installation or adjustment of Sensor
Functions. Avoid reflections from surrounding hot objects, unresolved targets, and
obstructions in the Sensor’s optical path. True temperature measurement is dependent
on correct setting of Emissivity or E-Slope. Use of Pick Picker or Track and Hold signal
conditioning may be necessary to capture temperature signals because of process
interferences.
The Rear Panel ALARM indicator signals an error has been detected. Press Up Arrow
▲
to view Error
Codes.
Press Up Arrow
▲
multiple times to view all simultaneous Error Codes.
