Instruction Manual
Meter Relay Model NRP-83
I-01972 1/3
TSURUGA ELECTRIC CORPORATION
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We thank you for your purchase of our model NRP-83 series meter relay. For safety use of this product, please observe the
following caution. For proper operation of it, please also read the instructions to follow before the initial operation.
CAUTION
To prevent electric shock, observe the following cautions:
◆
Never make power line connections with active lines.
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Ensure firm and tight connections to the terminals.
◆
Do not touch the power source terminals while the
instrument is powered on.
To avoid electric shock, failure or abnormal heat-up of the
instrument, do not use the instruments in such places where:
◆
exposed to rain, water drops or direct sunlight.
◆
high temperature or humidity, much dust or corrosive gas.
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affected by external noise, radio waves or static electricity.
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where there is constant vibration shock.
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Check at Delivery
When the product is delivered to you, please check that its specifications conform to your requirement and that there is no damage in
transit. This instrument is carefully inspected before delivery from factory under our strict quality control program, but if you find
any defect or inconvenience, please inform us of the model name and serial number of the product, etc.
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Cautions for Use
①
This product is a precision instrument, so please take utmost care for transportation, installation or any other handling of it.
②
No power on-off switch is provided on this product, so it immediately starts to operate when connected to the power source.
③
In case of fear that the external noise of surge may cause malfunction or breakdown of this instrument, it is necessary to take
proper protective solution against noise.
④
In case of fear that this instrument suffers the surge voltage, ground one side of the measuring input terminals.
⑤
Use this product within the range or conditions conforming to its specifications and standard.
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Name of Parts
Note:
In case that the model name is NRP-83H, no low limit setting lever, set point
index bar ,low limit display or contact output terminal is provided.
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Panel Cut-Out Dimensions
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Installation
Insert the instrument from the front of the panel to install.
And fasten them with the mounting screw to the pane
Optimum fastening torque : 0.36~0.48N
･
m
input terminal
Measuring
Auxiliary supply terminals
high limit contact
Output terminal
low limit contact
Output terminal
[Note]
(option)
for span adjustment
Variable resister
pointer
Measuring
Low limit setting index
High limit LED display
High limit setting index
Low limit LED display
High limit setting knob
Zero adjuster
Low limit setting knob
