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Metrel MI 3122 Z Line-Loop / RCD Tester

SKU: MI3122
Only 3 In Stock
Reward Points: 678 [?]

  • Test live circuits

  • Ze and Zs testing, automated RCD testing and line resistance testing on three phase systems

  • Rechargeable batteries

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£406.80 (Inc. VAT)

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Metrel MI3122 Z Line Loop RCD Tester

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  • Description

Metrel MI 3122 Z Line-Loop / RCD Tester Details

The Metrel MI3122 Z Line-Loop/RCD Tester is made for verification, periodic testing, and maintenance of electrical installations.  It can also be used for the evaluation of protective measures in LV-installations and for troubleshooting on live installations.  The Metrel MI3122 Z Line-Loop/RCD Tester is also suitable for testing on CAT IV installations.

Combining together built-in fuse characteristics for fast evaluation of all measuring results, RCD tests (including trip time out, contact voltage and ramp test), phase sequence testing and the ability to clearly display whether a device has passed or failed a test, the Metrel MI3122 is a fantastic, high-quality tester that gives you the needed flexibility to provide incredibly accurate testing.

The device is also compatible with Metrel’s EuroLink Pro Plus PC Software package, and thanks to the integrated USB/RS-232 ports on the device you can download your stored test to PC and interact further with the data. Perfect for creating comparison charts and graphs!

Key Features

  • Help-screens make sure you always know what you're doing
  • Automatically evaluates loops with built-in loop impedance tables
  • Online voltage monitoring of 3 voltages in real time
  • Phase sequence test
  • Upgradeable - software can be updated in line with changes to regulations
  • TripLock function performs loop test without tripping RCD
  • Built-in charger and rechargeable batteries
  • Automated RCD testing
  • Downloadable - take your test data and interact with it further using Metrel's A 1290 and A 1291 software

Full List of Products Included

  • MI 3122 Z Line-Loop/RCD Tester
  • Soft hand strap
  • Mains plug
  • 3 x test leads (1.5m in brown, green and blue)
  • 12V battery charging adapter
  • UK mains cable for charging adapter
  • Test probe (blue)
  • Test probe (brown)
  • Test probe (green)
  • Crocodile clip (blue)
  • Crocodile clip (brown)
  • Crocodile clip (green)
  • Short instruction manual
  • Instruction manual on CD
  • Calibration certificate
Questions?Do you have a question about this product? Call our customer service team on 01642 631685.
  • Technical Specs

Metrel MI3122 Technical Specifications

RCD Testing
Nominal Residual Current (A, AC) 10mA, 30mA, 100mA, 300mA, 500mA, 1000mA
Test Current Shape Sine-Wave (AC), Pulsed (A)
RCD Type G (non-delayed), S (time-delayed)
Test Current Starting Polarity 0 or 180°
Voltage Range 50V ÷ 264V (45Hz ÷ 65Hz)
Complete measuring range corresponds to EN 61557 requirements
Contact Voltage
Measuring Range (V) Resolution (V) Accuracy
0.0 ÷ 19.9
0.1 (-0%/+15%) of reading ± 10 Digits
20.0 ÷ 99.9
0.1 (-0%15%) of reading
Test Current: max 0.5xlΔN  Limit Contact Voltage: 25V, 50V
Trip-Out Time
Measuring Range (ms)  Resolution (ms)  Accuracy
0 ÷ 300
1 ±3ms
Test Current: 1/2 x lΔN, lΔN, 2xlΔN, 5xlΔN
Trip-Out Current
Measuring Range (lΔ) Resolution (lΔ) Accuracy
0.2xlΔN ÷ 1.1lΔN (AC Type)
0.05lΔN ±0.1xlΔN
 0.2xlΔN ÷ 1.5lΔN (A Type, IDN\30mA) 
0.05lΔN ±0.1xlΔN
0.2xlΔN ÷ 2.2lΔN (A Type, IDN <30mA) 0.05lΔN ±0.1xlΔN
Fault Loop Impedance (no disconnecting device or FUSE selected)
Measuring range according to EN 61557 is 0.25Ω ÷ 9.99kΩ
Measuring Range (Ω) Resolution (Ω) Accuracy
0 ÷ 9.99 0.01 ±(5% of reading + 5 digits)
10 ÷ 99.9 0.1 ±(5% of reading + 5 digits)
100 ÷ 999 1 ±10% of reading
1k ÷ 9.99k 10 ±10% of reading
Test Current (at 230V): 6.5A (10ms    Nominal Voltage Range: 30V ÷ 65Hz)


Further technical specifications are available in the attached datasheet.

Questions?Do you have a question about this product? Call our customer service team on 01642 631685.
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