Specifications Function: Simultaneous measurement of two AC voltage, current, phase between voltage, phase between current, phase between voltage and current, frequency, phase sequence, active power, reactive power, apparent power, power factor, distinguish transformer wiring group, inductive and capacitive circuits, test second circuit and bus differential protection systems, read the phase relationship between CTs of the differential protection, check the meter wiring right, repair lines and equipment, etc. Power supply：DC9V alkaline batteries(1.5V AA×6) Display mode：LCD display, 240dots×160dots Clamp Size：acuminate current clamp:7.5mm×13mm Phase Sequence:Positive Phase Sequence:U1,U2,U3 or I1,I2,I3 cursors blink in order from left to right; Negative Phase Sequence:U1,U2,U3 or I1,I2,I3 cursors blink in order from right to left Sample Rate：About 2 times/second Test Line Length:1.5m Current Clamp Length:2m×φ5mm Data Hold：Press HOLD key to keep data, "DH" symbol appears Data Storage：500 sets RS232 Interface：USB-RS232 interface, download data to computer for analysis and management Automatic Shutdown：Automatic shutdown about 15 minutes later after launching to reduce battery consumption Backlighting:Suitable for dark place and nightly use Work temperature & moisture：-10℃～40℃； 85%rh below Storage temperature and moisture：-10℃～60℃； 70%rh below Voltage Detection：Low battery symbol appears to remind the replacement of battery when the battery voltage drops below 7.2V. Input Impedence：Testing voltage the input impendence is 2MΩ Structure：Double insulation, with insulation vibration-proof sheath
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