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VR2250

Product catalog summary

Technical Specifications Overview
The VR2250 is a multifunction test instrument designed for various electrical measurements. It operates optimally at 23°C ± 5°C with a relative humidity of less than 60%. The specifications are subject to change by Martindale Electric Ltd without prior notice.

Safety Test Functions

LOWΩ Continuity Test: Measures resistance with a test current greater than 200mA DC for R≤5Ω, with an accuracy of ±(2% Reading + 2 digits).
MΩ Insulation Test: Offers multiple test voltages (50V, 100V, 250V, 500V, 1000V) with varying ranges and accuracies depending on the voltage/resistance ratio.
RCD Testing: Tests on RCD devices with nominal test currents ranging from 10mA to 500mA, measuring tripping time and contact voltage with specified accuracies.

Measurement Functions

Frequency Measurement: Accurate within ±(0.1% Reading + 1 digit) for 47.0 - 63.6 Hz.
Voltage Measurement: Measures up to 460V with an accuracy of ±(3% Reading + 2 digits).
Loop Impedance Measurement: Includes phase-to-phase, phase-to-neutral, and phase-to-earth measurements with specified accuracies.
Earth and Resistivity Measurement: Measures ground resistance and resistivity with accuracies of ±(5% Reading + 3 digits).

Analyzer and Auxiliary Functions

Voltage and Current Measurement: Single-phase system measurements with autorange and manual range options.
Power Measurement: Measures active, reactive, and apparent power with accuracies of ±(1.0% Reading + 2 digits).
Harmonics Measurement: Measures voltage and current harmonics up to the 49th harmonic.

Standards Compliance
The instrument complies with various safety and performance standards, including EN 61010-1, IEC 61557 series, and EN50160 for voltage sag and surge.

General Specifications

Mechanical Data: Dimensions are 225 x 165 x 105 mm, and it weighs approximately 1295g with batteries.
Power Supply: Operates on 6 x 1.5V batteries with varying test capacities and an optional external power supply adapter.
Display and Memory: Features a graphic display with a resolution of 128 x 128 and a memory capacity for 999 safety test measurements and 2MByte for analyzer data.
Environmental Conditions: Suitable for use within a temperature range of 0° - 40°C and humidity below 80%.

Catalog excerpts

VR2250 INSTALLATION ANALYSER MULTIFUNCTION TEST INSTRUMENT SPECIFICATION

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TECHNICAL SPECIFICATIONS TECHNICAL FEATURES Accuracy is indicated as [% of reading + number of digits]. It refers to the following atmospheric conditions: a temperature of 23°C ± 5°C with a relative humidity < 60%. Martindale Electric Ltd reserves the right to change specification without notice, and without incurring any obligation. Safety Test functions LOWΩ: 200mA CONTINUITY TEST (AUTO, RT+, RT- MODE) Range [Ω] 0.01 - 9.99 10.0 - 99.9 (*) After Test leads calibration Test Current Resolution for Test current: Open Circuit Voltage Accuracy(*) ±(2% Reading + 2 digits) > 200mA DC per R≤5Ω (Test...

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• FREQUENCY MEASUREMENT Open circuit Test Voltage <20V RMS

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_____________________________________________________________MARVR2250 ANALYZER and AUX functions VOLTAGE MEASUREMENT – SINGLE PHASE SYSTEM (AUTORANGE) Range [V] Resolution [V] Accuracy Input Impedance 15 - 310V 0.2V 300kΩ (Phase - Neutral) ±(0.5% Reading+2digits) 300kΩ (Phase - Phase) 310 - 600V 0.4V VOLTAGE SAG AND SURGE DETECTION – SINGLE PHASE SYSTEM (MANUAL RANGE) Resolution Resolution Accuracy Accuracy (rif. 50Hz) Range [V] Input Impedance (Voltage) (Time) (Voltage) (Time) 300kΩ (Phase 15 - 310V 0.2V Neutral) 10ms (½ period) ±(1.0% Reading+2digits) ± 10ms (½ period) 300kΩ (Phase 310 - 600V...

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_____________________________________________________________MARVR2250 STANDARDS General Safety Protection classification Pollution degree Degree of Protection: Over-Voltage Category Usage: EMC EN 61010-1 + A2 (1997) Class 2 - Double Insulation 2 IP50 CAT II 600V~ / 350V~ (phase –earth) CAT III 600V~ / 300V~ (phase –earth) Indoor; max height 2000m EN61326-1 (1997) + A1 (1998) The instrument complies with European Guidelines for CE mark Safety Test LOWΩ (200mA): MΩ: RCD: LOOP P-P, P-N, P-PE: PHASE SEQUENCE: EARTH: ANALYZER Voltage Sag and Surge Alternating Current Static Watt-hour meters for Active...

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_____________________________________________________________MARVR2250 GENERAL SPECIFICATIONS Mechanical Data Dimensions Weight Power supply Batteries Battery Life: External Power Supply Adapter (optional) Display Display Type Resolution Visible Area Memory Safety Test Memory ANALYZER: 225 (L) x165 (W) x 105 (H) mm 1295g approx (including batteries) 1150g approx (excluding batteries) 6 x 1.5-LR6-AA-AM3-MN 1500 LOWΩ: approx: 800 tests MΩ: approx: 500 tests RCD AC and A Type: approx: 1000 tests LOOP P-P, P-N, P-PE approx: 1000 tests Ra : approx: 1000 tests EARTH: approx: 1000 tests PHASE SEQUENCE:...

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