HF-MT-507 Clamp Meter Calibrator

Product Introduction

Multi‑function Clamp Meter Calibrator is an all‑in‑one LED digital display standard source for AC & DC standard voltage and current (AC output shown as true‑RMS value).

Its triple‑window display shows actual output value, percentage of output range and full‑scale reading under test. Users can set full‑scale values and select corresponding step values per meter scale. Amplitude adjustment supports keypad control or potentiometer control. Featuring digital readout, wide range, fine gear division, high accuracy, outstanding stability and easy operation.

It applies to inspection, testing and maintenance of 4‑1/2 digit multimeters, 0.2‑class & 0.5‑class analog AC/DC voltmeters and ammeters. It can also serve as high‑stability test source. Working with higher‑grade standard meters, it calibrates 0.1‑class ammeters and voltmeters. Widely used for quality inspection, metering and instrument maintenance in industry, research institutes, railway, power utilities and educational institutions.

Technical Specifications

Item	Specifications
AC/DC Clamp‑Meter Calibration Range	Q1: 0‑2000AQ2: 0‑1000AQ3: 0‑500A
AC/DC Voltage Output Range	0‑250 mV ~ 1100 mV
AC/DC Current Output Range	0‑100 μA ~ 22 A
Accuracy	DC: ±(0.03% of reading +0.02% of full‑scale)AC: ±(0.05% of reading +0.03% of full‑scale)
Stability	AC: ≤0.02% FSDC: ≤0.01% FS
Distortion	＜0.5%
Ripple Factor	＜0.5%

Application Scope

• Amplitude adjustment supports both digital and analog regulation, realizing continuous, fixed‑value and fixed‑point output modes.
• Widely adopted for quality inspection, metering, teaching‑research, instrument production & maintenance in industrial enterprises, research institutes, railway, power sector, military units and schools.

FAQ — Clamp Meter Calibrator

Q1: What is the main function of this Clamp Meter Calibrator?

A1: It is an all‑in‑one AC/DC standard source. It calibrates various clamp meters, digital multimeters and analog voltmeters/ammeters for metrology verification and instrument maintenance.

Q2: What are its output ranges for clamp‑meter calibration?

A2: Three ranges available: Q1 0‑2000A, Q2 0‑1000A, Q3 0‑500A. It also outputs AC/DC voltage 0‑250mV~1100mV and AC/DC current 100μA‑22A.

Q3: How about its measurement accuracy and stability?

A3: DC accuracy: ±(0.03% reading +0.02% FS); AC accuracy: ±(0.05% reading +0.03% FS). Output stability ≤0.02% FS for AC, ≤0.01% FS for DC.

Q4: What output adjustment modes does it support?

A4: It supports both digital adjustment and analog potentiometer adjustment. Continuous, fixed‑value and fixed‑point output can be realized.

Q5: What does the triple‑window display show?

A5: It simultaneously displays actual output value, percentage of output range and full‑scale reading of the meter under test. Full‑scale value and step value can be manually set.

Q6: What about distortion and ripple performance?

A6: Distortion＜0.5%, ripple factor＜0.5%. AC output adopts true‑RMS indication for reliable calibration results.

Q7: What instruments can be calibrated with this device?

A7: It calibrates clamp meters, 4‑1/2 digit multimeters, 0.2/0.5‑class analog meters. Matched with higher‑grade standard meters, it can calibrate 0.1‑class voltmeters and ammeters.

Q8: Where is this calibrator commonly used?

A8: Suitable for quality inspection, metering, teaching research and instrument repair in power utilities, railway, research institutes, factories and schools.