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TSURUGA ELECTRIC CORPORATION 

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4-φ4

Instruction Manual 

Meter Relay Model NRC-100

 

I-01758-1/3

 

 
We  thank  you  for  your  purchase  of  our  model  NRC-100  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. 

 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. 

 

affected by external noise, radio waves or static electricity. 

 where there is constant vibration shock. 

 

 

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. 

 

 

Cautions for Use

 

① 

This product is a precision instrument, so please take utmost care for transportation, installation or any other handling of it.

 

 

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.

 

 

 

Name of Parts

 

 
 
 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

                                                                                                                       
 

 

 

 

 

 

 
 
 

Note:

 

  In case that the model name is NRC-100H, no low limit setting lever, set point 

index bar ,low limit display or contact output terminal is provided. 

 

 

■ 

Panel Cut-Out Dimensions 

 

 

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 knob

High limit setting knob

Zero adjuster

High limit LED display

High limit setting index

Low limit LED display

Low limit setting index

Summary of Contents for NRP-60

Page 1: ...t if you find any defect or inconvenience please inform us of the model name and serial number of the product etc Cautions for Use This product is a precision instrument so please take utmost care for...

Page 2: ...lay controls with the capacity higher than these provide the auxiliary relay externally Operation Prior to the operation of instrument check that the input rate auxiliary supply voltage and connection...

Page 3: ...ase inform us of the model name and serial number of the product etc Cautions for Use This product is a precision instrument so please take utmost care for transportation installation or any other han...

Page 4: ...ect the measuring input Use the particular accessory when it is designated Auxiliary supply Terminals AC power source model DC power source model Connect the AC voltage to the respective terminals of...

Page 5: ...an 1 M is inserted the auxiliary power with opened condition of input terminal of 7331 the measuring pointer indicates more than the upper limit of the scale Turning the high or low limit setting knob...

Page 6: ...ease inform us of the model name and serial number of the product etc Cautions for Use This product is a precision instrument so please take utmost care for transportation installation or any other ha...

Page 7: ...nect the measuring input Use the particular accessory when it is designated Auxiliary supply Terminals AC power source model DC power source model Connect the AC voltage to the respective terminals of...

Page 8: ...han 1 M is inserted the auxiliary power with opened condition of input terminal of 7331 the measuring pointer indicates more than the upper limit of the scale Turning the high or low limit setting kno...

Page 9: ...nconvenience please inform us of the model name and serial number of the product etc Cautions for Use This product is a precision instrument so please take utmost care for transportation installation...

Page 10: ...ect the measuring input Use the particular accessory when it is designated Auxiliary supply Terminals AC power source model DC power source model Connect the AC voltage to the respective terminals of...

Page 11: ...erted the auxiliary power with opened condition of input terminal of 7331 the measuring pointer indicates more than the upper limit of the scale Turning the high or low limit setting knob set the sett...

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