KYORITSU KEW 6310 - Criteria of Judgment

KEW6310 5.3.2 Criteria of Judgment
KEW6310 5.8
Check screen
In case of NG, Error message appears. (Press the ENTER Key when OK is displayed.)
* Check results may be affected if great power factors exist at the measurement sites.
5.3.2 Criteria of Judgment
Check Criteria of Judgment Cause
Frequency Frequency of V1 is between 42 and
68Hz.
• Voltage clip is firmly connected to the DUT?
• Measuring too high harmonic components?
Voltage input Voltage input is 10% or more of (Voltage
Range x VT).
• Voltage clip is firmly connected to the DUT?
• Voltage test leads are firmly connected to
the Voltage input terminals on the
instrument?
Voltage balance Voltage input is within ±30º of reference
voltage (V1)
* (not judged by single-phase wiring)
• Setting against the wiring under test are
matched?
• Voltage clip is firmly connected to the DUT?
• Voltage test leads are firmly connected to
the Voltage input terminals on the
instrument?
Voltage phase Phase of voltage input is within ±10º of
reference value (proper vector).
• Voltage test leads are properly connected?
(Connected to proper channels?)
Current input Current input is 5% or more of (Current
Range x CT).
• Clamp sensors are firmly connected to the
Power input terminals on the instrument?
• Setting for Current Range is appropriate for
input levels?
Current phase Current input is within ±60° of reference
value (proper vector).
• Arrow mark on a Clamp sensor and the
orientation of flowing current is matched?
(Power supply to Load)
• Clamp sensors are connected properly?