5
2. Installation
Attach the brackets (2 units) on the fixed halls and tighten with a screwdriver.
Fixing torque is about 147 N. cm (1.5 kg.cm)
(Care should be taken not to tighten forcedly)
3. Caution on terminal connections
To avoid induction noise to input wires seperate from the power and output wires.
Keep input wires away from output wires and use shielded wires to earth.
Use a compensating cable with thermocouple.
For R.T.D input use a cable which is a small lead wire resistance and without resistance
difference to 3 wires.
If the wiring has noise, use the following step: connect a surge absorber to the conductor coil
side if the conductors are connected to the load output, such as the relay contact output.
(EX. For 220 V AC ENC 471D-05A)
Use an insulating transformer with a noise filter when the power suppy has much noise.
(EX. TDK brand ZMB 22R5-11 noise filter)
Noise filter should be mounted on a panel which has been earthed and the wiring between the
noise filter output and the instrument power terminals should be shorten.
It is effective to use a twisted cable for power supply against noise.
The heater power supply and the instrument power supply should be connected using the
same power suppy when a heater break alarm.
Time for preparation of contact output is required at power ON. When the output signal is used
for an extenal interlock circuit, connect a delay relay.
4. For load circuit connection
Use an extra relay when the frequency of operation is rather high. SSR output type is
recommended.
Electromagnetic switch : Proportional cycle time is Min. 30 sec
SSR : Proportional cycle time is Min. 1 sec
Contact output life : Mechanical : 10 million times (no load)
Electrical : 100 thousand times (rated load)
SSR drive pulse voltage, 4 ~ 20 mA DC are not insulated with internal circuit.
Use non-grounded sensor to R.T.D and thermocouple.
5. For waterproof (Waterproof type)
The instrument has IP65. Use rubber packing when installing the instrument to panel.
Please attach the rubber in correct way.
6. Caution on key operation / trouble
If alarm function is not set correctly, alarm output can not be operated at a trouble point.
Be sure to check the alarm operation.
If the input cable is disconnected, the display shows “ ”.
When replacing the sensor, please turn OFF the power suppy.
7. Other
Do not use organic solvents such as alcohol, benzine when cleaning. (Use neutral detergent)
To Next Page
Loading...
Need help?
General
