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1. Introduction
1-1. Check before use
This product has been fully checked for quality assurance prior to shipment. Nevertheless, you are requested to make sure that there is no error, damage or
shortage of delivered items by confirming the model codes and checking the external view of the product and the number of accessories.
Confirmation of Model Codes:
Check the model codes stuck to the case of the product to ascertain if the respective codes designate what was specified when you ordered the product,
referring to the following code table:
Code and Description
SR71, SR72, SR73, SR74
8: Multi-input Thermocouple, R.T.D., Voltage (mV)
4: Current (mA) 6: Voltage (V)
Y1: Contact I1: Current P1: SSR-drive voltage V1: Voltage
0: None 1: Alarm 2: Alarm+Heater break alarm (30.0A)
3: Alarm+Heater break alarm (50.0A) 4: Set value bias
5: Alarm+Set value bias
*6: Alarm+Heater break alarm (30.0A) + Set value bias
*7: Alarm+Heater break alarm (50.0A) + Set value bias
*Unselectable for SR71
Checking accessories:
Instruction manual 1 set
Unit decal 1 sheet
Curren transformer (CT) for heater break alarm: included with the heater break alarm option
TYPE CTL-6-S for 30A selection
TYPE CTL-12-S36-8 for 50A selection
NOTE: Contact our representative or our local office concerning any problems with the product, accessories or related items.
1-2. Caution for use
(1) Avoid operating keys of the front panel with hard or sharp objects or motions. Lightly touch the operationg keys with finger tip
for operation.
(2) Avoid using solvents such as thinner. Wipe gently with a dry cloth.
2. Installation and wiring
2-1. Installation site (environmental conditions)
In the case where there is an intention to operate this product at one of the following sites, be aware that the occurance of fire and/
or other dangerous situations is considerable.
Exercise caution and avoid these places when selecting an operational site.
CAUTION
(1) Where flammable gas, corrosive gas, oil mist and particles that can deteriorate electrical insulation are generated or are abundant.
(2) Where the temperature is below -10˚C or above 50˚C
(3) Where the relative humidity is 90%RH or below dew point.
(4) Where highly intense vibration or impact is generated or transferred.
(5) Near high voltage power lines or where inductive interference can affect the operation of the product.
(6) Dew drops or direct exposure to sun light.
(7) Where the elevation is in excess of 2,000m.
NOTE: The environmental conditions belong to the installation category II of IEC 664 and the degree of pollution is 2.
SR71- 8 Y1- 1 C
Item
1. Series
2. Input
3. Output
4. Optional
function
5. Remnarks C: Without 9: With
