5
13. In case of water intrusion, the inspection is required to check the possiblity of electric leakage or fire.
14. Use a compensating cable for connecting thermocouples.
15. The lead wire resistance is small for RTD input use and please use the one which has no resistance
difference to 3 wires.
16. To avoid inductive noise to input wires, seperate from the power and output wires.
17. Keep input wires away from output wires, otherwise using shielded wires recommended.
18. Use non-grounded sensor to R.T.D and thermocouple
19. If there is excessive noise from the power supply, using insulating transformer and
noise filter is recommended. The noise filter must be attached to a panel grounded,
and the wire between the filter output side and power supplyterminal must be as short as possible.
20. It is effective to use a twisted cable for power supply against noise
21. If alarm function is not set correctly, alarm output can not be operated at a trouble.
22. When replacing the sensor, please turn OFF the power supply.
23. Use an extra relay when the frequency of operation is rather high. In this case,
SSR output type is recommended.
•Electromagnetic switch : Proportional cycle time is Min. 20 sec
•SSR : Proportional cycle time is Min. 1 sec
•Contact output life : Mechanically Min.10 million times (no load)
Eletrically Min. 100 thousand times (rated load)
•SSR drive pulse voltage, 4 - 20 mA DC are not insulated with internal circuit
24. The instrument has IP65 protection grade. But to guarantee its grade and specification,
make sure to use rubber seals when installing the instrument to panel.
25. Do not connect anything to the unused terminals.
26. After checking polarity of terminal, connect wires at the correct position.
27.
When the product is installed to a panel, use a circuit breaker or switch in conformity with IEC847-1 or IEC947-3.
28. Switches and circuit breakers should be installed nearby the products for prompt and convenient operation.
29. In case of using swtiches and circuit breakers, please display instruction message on the panel e.g.
"Power is disconnected by operating switches or circuit breaker."
30. For the continuous and safe use of this product, the periodical maintenance is recommended.
31. Some parts of this product have limited life span, and others are changed by their usage.
32. The warranty period is 1 year and limited to the product including parts properly and in normal manner used
.
33. The heater power supply and the instrument power supply should be connected using the same power
supply when using heater break alarm.
34. After the power is on, the preparation time for contact output is required.
In case of use for signals of external interlock circuit, use with a delay relay.
35. After replacing into new products, make sure that all parameter settings are same as the previous products.
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