Specifications

Mechanical Indicators
27
Common standard specifications
Standards
Accuracy (grade)
Usage temperature range
Usage humidity range
Mounting attitude
Scale plate
Cover
Case
Input signal peak-to-rms ratio
Measurement category
Operating environment
pollution rating
Installation altitude
Usage location
Mounting panel
Voltage test
Insulation test
Storage temperature
Direct-acting electrical indicators JIS C 1102-2, JIS C 1102-3, JIS C 1102-4, JIS C 1102-5, JIS C 1102-7
Class 1.5 or 2.5 (frequency meters: class 0.5 or 1; power factor meters: class 5, synchroscope: class 5)
-5°C to 50°C (reference temperature: 23°C)
At a relative humidity of 30% to 70%, there are no adverse effects on indications.
Vertical (the scale plate is vertical with respect to a horizontal surface)
Background color: white
Acrylic resin (with antistatic treatment applied)
Steel plate or molded product
Sine wave ( 2)
CAT# (category of measurement performed inside a building facility)
2 (non-conductive pollution only)
2,000m or less
Indoors
Metal panel
Rated voltage 300V: 2210V for 5s; rated voltage 600V: 3320V for 5s
Note 1
(between electrical circuit and outer casing)
10MΩ or more at a test voltage of 500V (between electrical circuit and outer casing)
-20°C to 60°C
Common Specifications
Mechanical Indicators
Note 1.
Refer to the Reference Chart for Test Voltages and JIS Mark on p.25/26 for information regarding the circuit voltage ranges of respective models and
applicable voltage test values.