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CLASSIC
®
800 Product Manual
Troubleshooting
®
0 1 2 3
Active RTD (Heated)
Reference RTD
Pt1000 RTD
(Active)
Pt1000 RTD
(Reference)
50 Ohm
Heater
Wire Colour
Ohms
Description
Red to Red
50
Heater
Blue to Blue
0
Black to Black
0
Blue to Yellow
1100*
Reference RTD
Black to White
1100*
Active RTD
Red to any other lead
Infinite
Blue to Black
Infinite
*Approximate RTD resistance at room temperature (20°C).
Actual resistance varies from approx. 800 Ohms @ -45°C to
1700 Ohms @ 200°C
Figure 37 - Checking Sensor Resistances
5. How to Perform a Factory Reset
Note
:
You may wish to record the current configuration before performing a Factory Reset (see table Section
7). You may also save and restore the configuration using Kayden RCMS (see Section 6 RCMS).
To reset the CLASSIC to factory default settings press the following 3 buttons:
•
LEFT ARROW + RIGHT ARROW + RUN
simultaneously until all LEDs flash or run back and forth.
•
A successful reset will be indicated by five consecutives flashes of all LEDs followed by
a pause and two more flashes.
•
Warning
:
All previous configuration changes will be lost and the unit will be returned to it’s factory
defaults.
•
A Factory Rest should not be performed without first consulting Kayden Technical Support.
•
Factory Default Settings are shown in the Configuration Flow Chart.
6. How to Check the Sensor
•
An Ohmmeter can be used to check that the RTD’s and Heater resistances are within proper tolerances,
and for any shorts.
•
See Molex sensor plug diagram and wire chart (Fig. 29) for correct resistance between wires, at 20°C. If
the sensor is still in the process at a different temperature, consult an IEC 60751 1000 Ohm Platinum RTD
temperature resistance chart for the correct resistance value.
•
If the sensor resistances are not correct, consult Kayden Technical Support for guidance.
