Metrel MI3121 SMARTEC Insulation Continuity Tester
Metrel MI 3121 Technical specifications
Insulation resistance
Insulation resistance (test voltages 50 V DC, 100 V DC and 250 V DC) Measuring range according to EN 61557 is 0.25 MΩ ÷ 199.9 MΩ
Measuring range (MΩ) | Resolution (MΩ) | Accuracy |
0.00 ÷ 19.99 | 0.01 | ±(5 % of reading + 3 digits) |
20.0 ÷ 99.9 | 0.1 | ±(10 % of reading) |
100.0 ÷ 199.9 | 0.1 | ±(20 % of reading) |
Insulation resistance (test voltages 500 V DC and 1000 V DC) Measuring range according to EN61557 is 0.15 MΩ ÷ 30 GΩ
Measuring range (Ω) | Resolution (MΩ) | Accuracy |
0.00 M ÷ 19.99 M | 0.01 | ±(5 % of reading + 3 digits) |
20.0 M ÷ 199.9 M | 0.1 | ±(5 % of reading) |
200 M ÷ 299 M | 1 | ±(5 % of reading) |
300 M ÷ 999 M | 1 | ±(5 % of reading) |
1.00 G ÷ 4.99 G | 10 | ±(10 % of reading) |
5.00 G ÷ 19.99 G | 10 | ±(20 % of reading) |
20.0 G ÷ 29.9 G | 100 | indicative |
Open circuit voltage -0 % / +20 % of nominal voltage
Measuring current min. 1 mA at RN=UNx1 kΩ/V
Short circuit current max. 3 mA
Auto discharge after test
Continuity (200 mA)
Measuring range according to EN61557 is 0.16 Ω ÷ 1999 Ω
Measuring range R (Ω) | Resolution (Ω) | Accuracy |
0.00 ÷ 19.99 | 0.01 | ±(3 % of reading + 3 digits) |
20.0 ÷ 199.9 | 0.1 | ±(5 % of reading) |
200 ÷ 1999 | 1 | ±(5 % of reading) |
Open-circuit voltage 6.5 V DC ÷ 9 V DC
Measuring current min. 200 mA into load resistance of 2 Ω
Test lead compensation up to 5 Ω
Automatic polarity reversal of the test voltage.
Continuity (7 mA)
Measuring range (Ω) | Resolution (Ω) | Accuracy |
0.0 ÷ 19.9 | 0.1 | ±(5 % of reading + 3 digits) |
20 ÷ 1999 | 1 | ±(5 % of reading + 3 digits) |
Open-circuit voltage 6.5 V DC ÷ 9 V DC
Short-circuit current max. 8.5 mA
Test lead compensation up to 5 Ω
Voltage
Measuring range (V) | Resolution (Hz) | Accuracy |
0 ÷ 9.99 | 0.01 | ±(0.2 % of reading + 1 digit) |
10.0 ÷ 99.9 | 0.1 | ±(0.2 % of reading + 1 digit) |
200 ÷ 500 | 1 | ±(0.2 % of reading + 1 digit) |
Result type True r.m.s. (TRMS)
Nominal frequency range 0 Hz, 15 Hz ÷ 500 Hz
Frequency
Measuring range (Hz) | Resolution (Hz) | Accuracy |
0.00 ÷ 19.99 | 0.01 | ±(0.2 % of reading + 1 digit) |
20.0 ÷ 199.9 | 0.1 | ±(0.2 % of reading + 1 digit) |
200 ÷ 500 | 1 | ±(0.2 % of reading + 1 digit) |
Nominal voltage range 10 V ÷ 550 V
General data
Power supply: 6 x 1.5 V batteries or rechargeable batteries, size AA
Battery life: typical 13 h (>1200 insulation resistance tests / >2000 resistance RLOW tests)
Overvoltage category: CAT III 600 V, CAT IV 300 V
Protection classification: double insulation
Pollution degree: 2
Protection degree: IP 40
Display: custom liquid crystal display with backlight
Communication transfer speed: 115200 baud (RS 232) / 256000 baud (USB)
Memory: 1900 measurements
Dimensions (w x h x d): 14 cm x 8 cm x 23 cm
Weight (without batteries): 0,80 kg
Description
Metrel MI 3121 SMARTEC Insulation Continuity Tester
The MI 3121 SMARTEC Insulation / Continuity is a new generation tester for dead testing of electrical installations. With both an analogue and digital representation of the results, the instrument ensures accurate measurements up to 2000 Ω on continuity and up to 30 GΩ on insulation function. Configurable limits enable a PASS / FAIL evaluation of test results, which is accompanied with the bright red and green indicator lights for comfortable use even in the dark conditions.
The MI 3121 is equipped with a built-in charger and has a magnetic holder in order to free up hands for testing. All the results can be quickly saved on the instrument and then downloaded via the optional A 1291 EuroLink PRO or A 1290 EuroLink PRO Plus software for evaluation and professional report generation after testing. The MI 3121 SMARTEC Insulation / Continuity performs continuity, insulation AC voltage and frequency measurement tests.
*Important Calibration Information:
This instrument comes complete with the manufacturers calibration certificate. Please be aware that these certificates are generic and may also be time lapsed.
If you would prefer a personalised full traceable calibration certificate applied to the equipment before dispatch, then please select this option from the drop-down menu above, an additional calibration charge will apply.
MI 3121 (Standard Set) Comes Supplied With:
- MI 3121 Smartec Insulation / Continuity
- 20901090 Soft hand strap
- A 1055 Test lead (2 x 1.5 m Red, Black)
- A 1147 Rechargeable NiMH AA batteries (6 pcs)
- 83005447 12 V battery charging adapter
- 83005401 UK mains cable for charging adapter
- A 1016 Test probe (red)
- A 1014 Test probe (black)
- A 1064 Crocodile clip (red)
- A 1013 Crocodile clip (black)
- Short instruction manual
- Instruction manual on CD
- Calibration certificate
Measuring Functions:
- Insulation resistance with DC voltage;
- Continuity of PE conductors with 200 mA test current with polarity change;
- Continuity of PE conductors with 7 mA test current (continuous measurement) without RCD tripping;
- TRMS voltage and frequency.
Key Features:
- Insulation range: wide range of insulation test voltages from 50 V to 1000 V, measuring range up to 30 GΩ.
- Analogue scale and digital LCD: measuring results are displayed both in numeric and analogue representation.
- Downloadable: downloads via RS232 or USB cable directly to the PC with the help of the optional software.
- Upgradeable: if changes occur to the regulations upgrades can be made to the firmware to keep the instrument up to date.
- Polarity swap: automatic polarity reversal on continuity test.
- Built-in charger & rechargeable batteries: instrument has a built-in charging circuit and comes complete with a set of rechargeable NiMH batteries.
- Custom limits: if limits are set on insulation or continuity function then large green and red lights of the LEDs will indicate a PASS or FAIL evaluation of test result.
- Easy to use: large bright LCD display and large buttons enable easy handling of the instrument (even while wearing gloves).
- Magnetic holder: magnet for fixing instrument on metal surfaces enables hands-free operation.
Applications:
Electrical Power Systems
- Safety
Special Installations / Locations
- Service / Repair / Rental Offices
Standards Applied:
- AS / NZ 3018
- VDE 0413
- HD 384
- IEC/EN 60364 series
- IEC/EN 60364-6
- IEC/EN 61557 series
- IEC/EN 61557-1
- IEC/EN 61557-2
- IEC/EN 61557-4
- IEC/EN 61557-10
- IEC/EN 61326 series
- IEC/EN 61326-1
About Metrel
Metrel was established in 1957 as a factory for the production of electrical measuring instruments and components for the domestic market and grew from there to become one of world’s leading manufacturers of measuring and testing equipment. They are one of the few companies in the industry that develops and manufactures products at a single location, starting with design and ending with final assembly, quality control and calibration.
Features & Specification
Key Features | Downloadable RS232 or USB, Insulation Test Voltages from 50 V to 1000 V, Large LCD Analogue Scale, Magnetic Case Back, Non RCD Trip, Rechargeable NiMH Batteries Included, TRMS Voltage and Frequency., Upgradeable Firmware | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Product Stock Status | Next Day Delivery (subject to availability) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Manufacturer | Metrel | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Short Description | Metrel MI 3121 Technical specificationsInsulation resistance Insulation resistance (test voltages 50 V DC, 100 V DC and 250 V DC) Measuring range according to EN 61557 is 0.25 MΩ ÷ 199.9 MΩ
Open circuit voltage -0 % / +20 % of nominal voltage Continuity (200 mA)
Open-circuit voltage 6.5 V DC ÷ 9 V DC Continuity (7 mA)
Open-circuit voltage 6.5 V DC ÷ 9 V DC Voltage
Result type True r.m.s. (TRMS) Frequency
Nominal voltage range 10 V ÷ 550 V
Power supply: 6 x 1.5 V batteries or rechargeable batteries, size AA |
Delivery
Updated January 2024
Please note, our cut-off time is 2:00pm
Orders requiring calibration
Whilst we take the greatest care to get all orders dispatched and delivered to you in the stated time frame, orders received PM and requiring calibration may on occasion miss dispatch that day, according to the complexity of the calibration.Be assured they will ship on the next dispatch this in most cases should not add more than 24 hours to your delivery.
Bank/Public Holidays
Predicted delivery times are based on regular trading days Monday to Friday. Public holidays, bank holidays and weekends are outside the usual scopeof our dispatch and subject to activities/holidays of our carriers and therefore may incur additional days lead time to your order.
*UK Mainland (Revised March 2021)
Service | Price |
Standard FREE 2-3 Day Courier Delivery – UK Mainland only - Zones A & B - Order value OVER £75.00 ex VAT | FREE |
Standard FREE 2-3 Day Courier Delivery – UK Mainland only - Zones A & B - Order value UNDER £75.00 ex VAT | £4.95 |
Next WORKING Day (excludes Saturdays, Sundays and public holidays) – UK Mainland only - Zones A & B - ANY order value - Order by 2:00pm | £7.75 |
Saturday ANYTIME Delivery - Order by 2:00pm | £9.95 |
Delivery Surcharges
Because of the high cost of carriage, we regretfully need to apply a surcharge on all deliveries made in the following regions:
- Zones A & B - Mainland delivery rates apply.
- Zone C - Scottish Highlands (Charges are calculated at the checkout).
- Zone D - Outer Hebrides, Orkney Isles, Shetland Isles, Isle of Man, Scilly Isles, and Channel Islands (Charges are calculated at the checkout).
- Zone E - Northern Ireland (Charges are calculated at the checkout).
- Zone F - Republic of Ireland (Charges are calculated at the checkout).
Offshore Services
All offshore deliveries are a 3-4 day service as standard. This includes Channel Islands, Northern & Southern Ireland, Scottish Islands, Isle of Man and the Scilly Isles.
International delivery
International delivery charges are automatically added to your order at the checkout. For any questions regarding international deliveries please contact us at sales@isswww.co.uk
Export
All export inquiries should be directed to the export division before placement of order.
If no shipping option is available to your selected country please call us FREE on 0800 0224 060 to discuss your requirements.
All stated prices are subject to VAT at the current rate where applicable.
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