<< Yokogawa
Earth ground & Polyesters
Yokogawa 20731 and 320732
Insulation Polytester |
- Five measurement In One- Insulation resistance, Earth
Resistance, Earth Voltage, AC Voltage, Ac Current
- Simple operation
- Direct Reading
- Battery Conservation
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Yokogawa 320732
Shown
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The Yokogawa 320731 and 320732 is a transistorized multifunctional field tester
having a precision movement with taut-band suspension. Insulation
tester, auto earth tester, AC ammeter, and AC voltmeter functions are
all combined in this instrument, making it ideal for all-round plant
maintenance.
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Specifications |
Details |
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Measuring Range |
Insulation Resistance |
500V/100MΩ (320731), 250V/50MΩ (320732) |
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Earth Resistance |
0 to 15/150/1500Ω |
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Earth Voltage |
0 to 30V AC |
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AC Current |
70 to 130/140 to 260/ 280 to 520V AC |
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AC Voltage |
0 to 15/30/75/150/300A AC |
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Accuracy |
Insulation Resistance |
±5% of indicated value within effective
measuring range except zero and rated value
±10% of rated value for rated resistance, ± 0.7% of
scale length at zero and infinity |
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Earth Resistance |
±3% of full scale |
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Earth Voltage |
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AC Current |
±1.5% of full scale |
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AC Voltage |
±2.5% of full scale |
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Ambient Temperature Influence |
Insulation Resistance |
±5% of indicated value at the Central
Scale Mark for temperature change of 20±20°C
±5% of Scale length at Zero and Infinity |
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Earth Resistance |
±5% of Full Mark for temperature change
of 20±20°C |
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AC Current |
±2.5% of full scale for temperature
Change of 20±10°C |
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AC Voltage |
±1.5% of full scale for temperature
Change of 20±10°C |
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Scale |
Insulation Resistance |
Three-Digit Logarithmic (black) |
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Earth Resistance |
Uniform (blue) |
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Earth Voltage |
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AC Current |
Uniform (red) |
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AC Voltage |
Uniform (black) |
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Dimensions (Carrying case) |
Instrument Only |
Approx. 120 × 185 × 124mm
(4.75"x7.25"x4.8125") |
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Weight |
Approx 1.6kg (3.5 lbs) |
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Power Source |
Eight 1.5V batteries (IEC R6P, ANSI AA,
Mignon 1.5V or equivalent) |
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