1. Product Overview

MGY7501 is a multi-functional precision calibrator with multi-range, wide range and high-accuracy eight-digit display and output. The instrument can output high-accuracy DC voltage/current, AC voltage/current, DC power, and AC power with power factor control. It also has functions such as resistance simulation, capacitance simulation, function wave output, pulse output, and DC voltage and current measurement. , suitable for calibrating or calibrating various voltmeters, ammeters, power meters, power factor meters, phase meters, frequency meters, multimeters, multimeters, AC and DC clamp meters, various power measurement transmitters, etc. below level 0.05. Calibration devices can also be used as standard sources. This instrument fully complies with JJG 124-2005 "Calibration Specifications for Ammeters, Voltmeters, Power Meters and Resistance Meters", JJF 1587-2016 "Calibration Specifications for Digital Multimeters", JJF 1284-2011 "Calibration Specifications for AC and DC Ammeter Calibrators", GB/T 15637-2012 "General Specifications for Digital Multimeter Calibrators", GB/T15481-2000 "General Requirements for Testing and Calibration Laboratory Capabilities", JJF 1059.1-2012 "Representation and Evaluation of Measurement Uncertainty", It can be widely used in quality inspection, measurement, teaching and research and instrument maintenance work in industrial and mining enterprises, aerospace, military industry, scientific research institutes, railways, electric power, troops, schools and other units. .

2. Main functional features

The instruments that can be calibrated by this instrument are as follows: indicating instruments, AC and DC voltmeters, AC and DC ammeters, AC and DC power meters, power factor meters, phase meters, resistance meters, capacitance meters, frequency meters, clamp meters and pressure or temperature variables. Sender etc.

2.1 The maximum AC and DC voltage output is 1100 V, the maximum current is 33A, and the AC frequency range is: 45Hz~1kHz.

2.2 Analog resistance range: 0~200MΩ; Analog capacitance output range: 0.1nF~200uF; continuously adjustable.

2.3 Transmitter measurement range: 0～±12V; 0～±24mA.

2.4 It can accurately output DC power, AC active power, apparent power and power factor.

2.5 It has strong load capacity, ensuring stable and accurate values under full load conditions, and can cover the calibration of analog meters.

2.6 It has various value adjustment methods such as direct input of output value, potentiometer adjustment, rotary encoder, and step proportion.

2.7 Equipped with a large-size LCD touch color screen, the value display is intuitive and the operation is very convenient.

2.8 An optional clamp meter coil can produce a maximum equivalent current of 2000A, which is used to calibrate AC and DC clamp meters.

2.9 output has complete software and hardware protection functions to improve the long-term reliability of the equipment.

2.10 The positive and negative polarity of the output can be changed during DC output; a slow change mode is set when calibrating the pointer instrument.

2.11 can be controlled by a computer, and can work independently from the computer. It also supports connecting to a printer through special measurement software to print test reports.

2.12 Can output triangle wave, sine wave and other waveforms

2.13 Pulse output range: 1Hz~10MHz

3. Main technical indicators

● Maximum AC and DC voltage output is 1100V, maximum current is 33A
AC frequency range: 45Hz~1kHz
● Analog resistance range: 0~200MΩ
Analog capacitance output range: 0.1nF~200μF continuously adjustable
● DC voltage measurement range: 0~±12V
    DC current measurement range: 0~±24mA
● Accuracy: DC ±0.005%, AC ±0.01%

● Function wave: waveform output: triangle wave, sine wave; peak accuracy: 0.3%
●Pulse output: Frequency range: 1Hz~10MHz, TTL level; Adjustment fineness: 0.001%RG; Best measurement uncertainty: ±(0.002%RD+20μHz)