Jiangxi Julywell Science &Technology Development Co.,Ltd Company Logo Jiangxi Julywell Science &Technology Development Co.,Ltd
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JW-0301A Comprehensive Calibration Unit for Transmitter

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Jiangxi Julywell Science &Technology Development Co.,Ltd
[China]

Address
3 R & D Building, Torch Avenue 948, , High - Tech Development Zone, Nanchang Jiangxi
Phone
86-0791-88109405
Contact name
lujuan

Quick Information

  • Brand Name: JULYWELL
  • Place of Origin: China
  • Model Number : JW-0301A
  • Accuracy Class : 005
  • Dimensions : 460mmX430mmX185mm
  • Display Type : Digital Only
  • Measuring Range : AC
  • Operating Temperature : 22
  • Supply Voltage : 220V
  • Weight : 20kg
  • :

Description


1 General

    This instrument is an integrated 3 phase 0.05 grade device designed according to  JJG124-2005 Verification Regulation of Ammeters, Voltmeters, Wattmeters and Ohmmeters and JJG126-95 Verification Regulation of Measuring Transducer for Converting AC Electrical Quantities into DC Electrical Quantities. The core technique of meter embedded in this instrument is a high precision industrial frequency AC collector combined by digital signal processor (DSP) and 16 digits high speed A/D converter. The signal part of the source is also the controllable sine wave and harmonic wave signal source combined by DSP and 16 digits high speed D/A converter.

Using a 6.5 inch TFT color LCD screen, character display clear chart. Devicehas the advantages of high precision,stable and reliable work, convenient operation and flexible features such as.

 

2 Main functions & features

l  This instrument offers an automatic or manual calibration to the basic errors for various kinds of industrial-frequency electric meter (voltmeter, ammeter, wattmeter, cymomer and power factor meter), and measure the variables caused by the effects of the voltage, current, wave form, power factor.

l  This instrument offers an automatic or manual calibration to the basic errors for various kinds of transmitter (voltage transmitter, current transmitter, power transmitter, frequency transmitter, power factor transmitter), and measure the variables caused by the effects of the voltage, current, wave form, power factor.

l  This instrument can generate harmonic wave with 2~31 order, and it is can be program-controlled that the quantity and times of the harmonic wave, and the phase angle of the harmonic wave vs. fundamental wave.

   With frequency range of 40Hz1kHz, the power amplifier has fine linearity; The current amplifier is a constant-current source and the voltage amplifier is also a constant-voltage source. Because of light in weight, this instrument is suitable for on-the-spot calibration.

       In the measurement of AC voltage, current, active power, its accuracy is 0.05 level; because the device is provided with a higher 60KHz working frequency digital to frequency converter ( DFC ) and a plurality of the current range, so the measurement of electrical energy accuracy can also guarantee for grade 0.05.    So,the device, with high precision and stability, combines the testing functions of electrical measuring transmitter, AC/DC ammeter and energy meter (alternative with partial functions can also be customized as required).

l  Equipped with USB interface, this instrument can automatically or manually calibrate via upper co mputer software (optional part), and can process and manage the calibration data.

l  Equipped with a high capacity nonvolatile memory, this instrument can save over 300 meters’ original calibration data for review and upload.

 

3 Main Technique specification

 

AC output

voltage output range

50V – 800V

Current output range

0.5A24A 

Resolution

0.005%

Regulating range

0~120%FS

Power of V/I output

Max. 20VA

Accuracy

Voltage
current
Active power 

andelectric energy

0.05%

Reactive power

and electric energy

0.1%

Stability

0.01%/60s

Distortion factor

< 0.3% for linear resistance load

Frequency range

45Hz – 65Hz

Frequency Resolution

0.001Hz

Frequency accuracy

5×105

Phase angle range

0~359.99º

Phase angle Resolution

0.01º

Phase angle accuracy

0.05º

Harmonic output

Harmonic wave

2~31 order

 

Amplitude

0~20%

phase angle fine

0.01°·N (N is the harmonic order)

DC output

voltage output range

75mV – 1000V

current output range

0.5A24A

Resolution

0.005%

Regulating range

0~120%FS

Power of the current output

Max. 20W

Accuracy

75mV output

0.1%

other

0.05%

Stability

0.01%/60s

ripple voltage

Max.1%

DC meter(for transmitter output meter) accuracy

voltage

0~±24V

current

0~±24mA

OTHER

Voltage Supply

220V±10% 50/60Hz±2Hz

Ambient temperature

10°C -- 30°C

Relative humidity

35% -- 85%

Dimensions (W×H×D) (mm)

460×430×185

Weight (kg)

20kg

 


Price

  • Delivery Port : Nanchang

Packaging & Delivery

  • Packing :1piecesperbox
  • Packaging Size : 490 x 460 x 215 
  • Package Weight : 23  Kilograms
  • Delivery Lead Time : 15 days for ready goods
  • Supply Ability : 200Set

Product Image

  • 1 JW-0301A Comprehensive Calibration Unit for Transmitter image 1
  • 2  JW-0301A Comprehensive Calibration Unit for Transmitter image 2
  • 3  JW-0301A Comprehensive Calibration Unit for Transmitter image 3

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