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Accuracy specifications
Conditions of
guaranteed accuracy
Line voltage
measurement accuracy
Frequency
measurement accuracy
Effects of external
magnetic fields
Effects of nearby wires
Temperature coefficient ±0.4 V/°C (at other than 23°C ±5°C)
Effects of humidity
Line voltage phase
difference shift
5.3 Functional Specifications
Phase detection
function
Guaranteed accuracy period: 1 year
Guaranteed accuracy period from adjustment
made by Hioki: 1 year
Temperature and humidity for guaranteed
accuracy: 23°C ±5°C (73°F ±9°F), 80% RH or
less
Warm-up time: Max. 10 sec.
Number of voltage sensor clip open/close
cycles: 8,000 or less
±2.0% rdg. ±8 dgt. (1-year accuracy)
±3.0% rdg. ±8 dgt. (3-year accuracy; reference
value)
±0.5% rdg. ±1 dgt.
Within ±6.0 V for 400 A/m AC (50 Hz/60 Hz) field
Add ±4.0 V to measured voltage values.
(Value describes effect when an adjacent wire
with a potential difference of 400 V AC is in
contact with the voltage sensor's clip.)
Add ±4.0 V to measured voltage values.
(When measuring insulated wires at a humidity
level of 70% RH to 80% RH)
Equivalent to ±2.6°
Normal (positive) phase, reversed (negative)
phase (3-phase/3-wire, 3-phase/4-wire)
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