The DT-904 is the Basic test Equipment an Electrician cannot do without. The DT-904 is a Dual Function Test Instrument utilized to Verify electrical Wiring Connections and the Functioning of Earth leakage / Residual current detectors by forcing the ELCB / RCD to trip.

This verifies that the protection device open the mains power supply circuit when a current higher than a certain amplitude circulate into the ground/earth wire.

This ensures the Electrical installation meet safety regulation requirements.

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Able to test to IEC 61439-1 Standard that will be mandatory by 2021 for testing Switchboards.

The Metrel Electrical Safety Manager (MESM) PC software enables upload of automated test sequences, projects, downloading of test results, automatic data storage into a file and printing of professional test reports specially designed for specific applications. Due to selected test functions, durable construction and accompanying PC SW package MI 3325 MultiServicerXD is the perfect instrument for electrical safety testing in the most demanding industrial environments and automated production lines or specialized workshops.

Metrel MI 3325 Measuring Functions

• Continuity (2-wire & 4-wire), 0.2 A, 4 A, 10 A, 25 A + voltage drop @ 10 A;
• HV AC, HV AC programmable 100 V – 5000 V;
• Insulation resistance (Riso, Riso-S) 50 V, 100 V, 250 V, 500 V, 1000 V (DC);
• Sub-leakage current, (Isub, Isub-S) 110 V (AC), 230 V (AC);
• Z loop – fault loop impedance and prospective fault current (Ipsc, Ulpe, Uc(P));
• Zs rcd – fault loop impedance and prospective fault current in system with RCD (Ipsc, pe, Uc(P));
• Z line – line impedance and prospective short-circuit current (Ipsc, Uln);
• Functional test (power P/S/Q, voltage, current, cos fi, frequency, ThdU, ThdI, PF);
• Touch leakage current;
• RCD testing (RCD Uc, RCD t, RCD I);
• Differential leakage current;
• PE leakage current;
• Polarity;
• Clamp current;
• Voltage, Frequency, phase rotation;
• Varistor test;
• Voltage drop;
• Discharging time.

Metrel MI 3325 Key Features

• Touch screen: high resolution colour touch screen, 4.3” TFT.
• Double manipulation: keyboard and touch screen enable the user to control the instrument in any manner they like.
• Pre-defined AUTOSEQUENCE®s: enable the user simple and quick execution of test sequence for the chosen device.
• Support for RCD testing: A, AC, B, B+ and F RCDs.
• Testing of welding equipment (only in combination with A 1422): MultiServicerXD support testing of welding equipment in accordance with IEC/EN 60974-4.
• Functional inspections.
• Visual inspections.
• Custom inspections (visual and functional).
• Built-in help screens for referencing on site.
• Built-in fuse tables for automatic evaluation of the line / loop impedance result.
• Monitoring of all 3 voltages in real-time.
• Hi-pot: high voltage AC (5 kV @ 250 VA).
• Continuity: 4 – wire continuity test with selectable test current (0.2 A, 4 A, 10 A, 25 A) enabling precise measurements.
• Communication: RS-232, USB, Ethernet and Bluetooth communication ports enabling downloading, uploading and remote control over instrument.
• Multi-system testing: the instrument can be used on TT, TN, IT and 115 V supply systems.
• Automated RCD testing procedure (RCD AUTO).
• Automated impedance testing procedure (Z AUTO).
• Measurement filtering according to the selected area group.
• Large memory: support for microSD memory cards, 8 GB card already integrated in the instrument, although that can be expanded to 32 GB.
• PC SW Metrel ES Manager: enables creation of test structures, user-defined AUTOSEQUENCE®s, professional test reports and data transfer for archiving.

Software

• PC SW Metrel ES Manager: enables creation of test structures, user-defined AUTOSEQUENCE®s, professional test reports and data transfer for archiving.

Metrel MI 3325 Standard Accessories

• • • Instrument MI 3325 MultiServicerXD
    • HV test lead with test probe
    • HV test lead with crocodile
    • Mains cable
    • IEC test cable
    • Residual voltage test cable
    • Plug test cable
    • 3-wire test lead, 3 m
    • Continuity test lead, 2.5 m, 2 pcs
    • Test lead, red, 1.5 m
    • Test probe, 4 pcs (black, red, green, blue)
    • Crocodile clip, green
    • Crocodile clip, blue
    • Crocodile clip, black, 3 pcs
    • Crocodile clip, red, 3 pcs
    • Calibration certificate
    • RS-232 cable
    • USB cable
    • Short instruction manual
    • CD with instruction manual (full version)
    • PC SW Metrel ES Manager BASIC *
    • Protective bag for accessories (mounted on the case)

* Metrel ES Manager can be downloaded free of charge from Metrel Web server.

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RCD’s also protect against fire caused by faults in appliance, tools and wiring. If these faults go undetected they could cause a fire or personal injury. RCD’s provide a means of early fault detection.

SEW 8012EL Microprocessor Controlled RCD Tester Features:

● Menu-driven.
● Accurate digital readout of disconnection time.
● Over temperature protection.
● Over voltage protection.
● Fuse protection.
● Zero crossing circuitry permit testing at 0° or 180°.
●Extra large LCD(78 × 67mm).
● Very low consumption.
● 50Hz and 60Hz operation
● Auto power off.
● Auto off and off override.
● Wiring polarity indicator.
● Measure voltage between Line and Earth before testing.
●Frequency measurement indication.

SEW 8012EL Microprocessor Controlled RCD Tester Specifications:

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Autorange measurements with automatic AC/DC detection
LoZ low impedance voltage input to eliminate ghost voltage readings (caused by the capacitive coupling among active conductors close each other)
One-lead phase sequence detection

JUPITER is provided with ISO9000 calibration certificate as standard.

HT ITALIA JUPITER Multi-Function Multimeter Features:

• Autorange measurements with automatic AC/DC detection.
• DC, AC TRMS, AC+DC TRMS voltage up to 690V.
• Tripping time of RCDs type A and AC up to 300mA*.
• Tripping current of RCDs type AC up to 30mA. ›
• Non-trip earth ground resistance. ›
• Line-to-Neutral, Line-to-Line and Line-to-Ground impedance (resolution 0.1Ohm) with prospective short-circuit/fault current calculation.
• Current up to 3000A by means of clamp-on or flexible external transducer.
• Dynamic inrush current of motors and loads through the DIRC function allowing time base selection.
• Leakage current by means of the clamp-on transducer HT96U.
• Voltage and current harmonics with THD% calculation and function to the 25th Harmonic showing highest harmonic values first.
• One-lead phase sequence detection.
• Low impedance voltage input to eliminate ghost voltage readings.
• DC, AC TRMS, AC+DC TRMS current by means of external transducer.
• Frequency of voltage and/or current.
• Resistance and continuity with buzzer.
• MIN/MAX/PEAK/HOLD functions.
• 6000 count Display

HT ITALIA JUPITER Multi-Function Multimeter Functions

TRMS
AC/DC voltage	690V / AC+DC
LoZ Input
AC/DC current	AC+DC with external clamp transducer
Frequency
Resistance and continuity test with buzzer
RCD tripping time	30mA, 100mA, 300mA A/AC
RCD trip current measurement	RCD A/AC 30mA
Leakage current (with optional accessory HT96U)
Non-trip earth resistance
Voltage and current harmonics up to the 25th and THD%
Loop impedance P-N, P-P, P-PE and calculation of prospective short-circuit current
Electric motor starting current (INRUSH)
Auto x1/2, x1, x2, x5, 0°, 180°
Phase sequence
Out come OK/NOT OK	According with IEC60364-6
Backlit LCD display
Measurement category	CAT IV 600V
Measuring counts	6000
MAX/MIN/HOLD
Bargraph

HT Instruments JUPITER Standard Accessories:

• C2033AU Three wire cable Red, Black, Green with Australian plug
• 4324-2 Pair of test tips Red/Black 2/4mm straight banana
• YABAT0001HT0 Alkaline battery 1.5V, type AAA, IEC LR03, 4 pcs
• YABRS0002HT0 Carrying bag
• YAMUM0066HT0 User manual on CD-ROM
• YAMUM0065HT0 Quick reference guide
• Calibration certificate ISO9000.

 

HT Instruments JUPITER Optional Accessories:

• F3000U AC flexible clamp with 30/300/3000A full scales
• HT96U* AC current clamp with 1/100/1000A full scales
• HT97U* AC current clamp with 10/100/1000A AC full scales
• HT98U* DC current clamp with 1000A full scale
• HT4006 AC/DC current clamp with 40/400A full scales
• NOCANBA Hypertac-to-banana adapter* Adapter NOCANBA required.

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