Quick Detail
Place of Origin
HS-CODE
85-
Package & Delivery Lead Time
Detailed Description
Application
The system is used to calibrate various electronic and inductive single/three phase active mechanical (or electronic)watthour meters, single/three phase multifunctional electronic meters, single/three phase multi-rate watthour meters and single/three phase prepaid watthour meter. It can be applied in positive and negative phase active, reactive four-quadrant test. With 3-wire and 4-wire real reactive reference standard, it is capable of calibration for various artificial reactive or real reactive watthour meter.
Functions and features
Adopting advanced DSP and FPGA chip, algorithm and sampling technique, DSB-301A is capable of real time and high-speed calibration with extremely high accuracy and powerful functions.
With SMT technology applied inside the device, DSB-301A has extremely high reliability.
Large LCD display screen is used as the interface with high definition.
Special attracted-disc photoelectric sampler is featured with automatic collection of mechanic meter black spots and electronic meter LED signals, eliminating connection to the pulse terminals to collect electronic meter pulse. It is very safe and convenient. Also special pulse sampling line is provided to collect electronic meter pulse.
With special precise clip-on CT, it can calibrate watthour meter without dismantlement. We can also use electric wire for connection.
With RS232 port, DSB-301A is easy to connect to PC, download field test data.
Special DSBMIS fully automatic calibration software is installed on system PC so as to download users' information, read and process field data. And it is very convenient to connect with other networks.
The parameters, such as voltage, current, power(apparent, active, reactive), phase, power factor, frequency, etc. can be real-time measured.
The real time vector diagram demonstration and harmonics analysis is available.
Auto-detection for field wrong wiring:48 types of three phase 3-wire common wrong wiring detection; 96 types of three phase 4-wire wrong wiring detection.
0~31 harmonics analysis, bar graph indicated.
Save up to 100 field calibration records with high capacity EEPROM and no data loss for 10 years.
Technical specification
Device grade: class 0.05; class 0.1
Power supply: single phase commercial power 90V~260V,50HZ;
Power consumption：40VA；
Dimension：350mm×250mm×120mm；
Weight: 6kg；
Influence by power variation: ≤0.005%( power variation±10%)；
Preheating time: 15min
Measuring frequency range: 45~65HZ；
Voltage measuring range(real effective value): 10V~600V；input imdepence：≥600ｋΩ；measuring error：≤±0. 1%;
Current measurement(real effective value)
Current measuring range:1A，10A two options（direct connection）；clap-on CT：10A，100A（optional）；
Input impedence：1A ≤0. 2Ω；10A ≤0. 2Ω；measuring error：≤±0. 1%；clap-on CT：≤±0. 2%;
power measurement:
Active power（P）error：≤±0. 05%；with clip-on CT：≤±0. 2%；
Reactive power（Q）error：≤±0. 2%；with clip-on CT ：≤±0. 3%；
electric energy measurement:
Active power：≤±0. 05%；with clip-on CT ：≤±0. 2%；reactive poewer：≤±0. 2%； with clip-on CT：≤±0. 3%；
13.power measurement：
Error：≤±0. 1%（relative to the end value of measuring range）；indication range：-1.00000~+1.00000；
14.frequency measurement：
Measuring range：45~65HZ；error: ≤±0. 02%;
15. Phase measurement：
Measuring range：0°~360°；measurement accuracy：±0.2°;measurement item：UΦ-IΦ，UL-L；
16. vector graph indication：three phase 4-wire or three phase 3-wire；
17. Harmonics analysis：0～31 .
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