Single Phase Portable Standard Meter
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micro field calibration instrument
The main function
1. 32 bit high speed 150MHZ DPS of IT ,high performance of 16-bit AD with 6 channels
The digital multiplier with multi-function was successfully developed by floating point operation to ensure the accuracy of calculation
2.No- load can also check line function .
can correctly check line without no-load or small current situation for user
3.wiring simulation function
Instrument can be simulate the scene of variety of wiring and get corresponding the result in officer without access to voltage or current signal situation . Therefore .the function can be a use tool as checking line and improve the skill for the field operation staff .
4. self-checking for 5A clamp error
the inside of the instrument can produce 5A current signal transferred to 5A clamp.thus we can measure the error of clamp meter .
Thinking into account 5A clamp has a error change problem after being used for a long time ,we should keep know the situation of closure about the clamp meter at any time and remind relevant staff timely to clean clamp bite .
5.Ultra wide current measuring range
500 times current range to ensure measuring index :1000 times current display range ..
The minimum starting current is 1mA, NO-LOAD also can identify the wiring when high supply high time
6.Electric energy accumulation function
a. can calibrate electric energy meter without electric energy pulse output, or as a test of energy saving index
b. using 4.7 inches 16:9 industrial grade and wide color screen of TFT ,artistic .enough information .rich content .each function parameter of the instrument are directly and clearly display on the screen simultaneously without turning . this can make them to be clear at a glance when the user to see this function on it .
c. can be measure electric energy error ,voltage .current .active power .reactive power .phase. frequency .power factor (PF) and display vector diagram simultaneously ,as well as calibate results.
d. There is no install adjustable resistance in the inside of the instrument , all errors need to revised d by software
e. English version input method
f. we can choose the clamp mete (5A .100A.500A.1000A) to directly measure the ratio of low current transformer,by which we can conveniently found out some fault which happened in circuit breaker in CT two circuit,bad contact . short circuit of ramp for internal of CT ,as well as the ratio of CT nameplate whether meet with the actual ratio of CT .
g .can real measurement of three-phase voltage and its current (A.B.C) ,as well as measured range of harmonic ( 2-51 times ) .let us to know power grid supply situation .
h .can measured the waveform for voltage and current og three -phase (A.B.C)
I .Wide power supply is 45V-480V
J. all parameter need to input and all data for field range need to download can be set up freely by user ,which can be connected with a number of systems to achieve the funtion of data's download and upload .