Metrel MI 3211 TeraOhmHP 10 kV High Voltage Insulation Tester

Metrel

£3,712.00 / £4,454.40 incl VAT

⚡ Insulation resistance measurements up to 20 TΩ with adjustable test voltages from 50 V to 10 kV in precise 50 V/100 V steps.
⚡ Automatic discharge of capacitive loads and live voltage detection (> 30 V) for enhanced safety and reliability.
⚡ Fast charging/discharging rates (< 2.7 s/μF at 10 kV) and programmable timers for efficient, automated testing.
⚡ 8 GB SD card for saving results, with MESM software for seamless data analysis, transfer, and report generation.
⚡ Rugged dual-case design with IP65-rated protection and high EM interference resistance for challenging environments.

Available on back-order

SKU: MET-MI3211 Category: Brand:

Description

Metrel MI 3211 TeraOhmHP 10 kV High Voltage Insulation Tester

Product Description:

The Metrel MI 3211 TeraOhmHP 10 kV is a cutting-edge, high-performance insulation resistance tester built to meet the demands of professional electrical maintenance and industrial testing environments. Offering a fully adjustable test voltage range up to 10 kV, this versatile instrument is ideal for a variety of applications, including insulation testing of transformers, generators, long cables, and power distribution systems. Its robust dual-case design and high CAT IV safety rating ensure durability and safety in harsh industrial conditions, while its advanced EM interference protection guarantees precise and reliable measurements. The intuitive touch screen and menu-driven LCD interface allow for seamless operation, providing professionals with a user-friendly experience and exceptional accuracy. Additionally, its automatic discharge feature, programmable test sequences, and advanced diagnostics make it a trusted choice for efficient and comprehensive insulation resistance testing.

Key Features:

  • Insulation resistance measurements up to 20 TΩ with fully adjustable test voltages (50 V to 10 kV) in 50 V and 100 V increments.
  • High voltage breakdown detection with burn or breakdown modes and live voltage detection (> 30 V) for enhanced safety.
  • Fast charging and discharging rates (< 2.7 s/μF and < 0.24 s/μF at 10 kV) for capacitive loads to streamline testing.
  • 8 GB memory SD card for storing data and results, with MESM software for analysis, data transfer, and professional report generation.
  • IP65-rated dual-case construction, CAT IV 600 V safety rating, and high EM interference protection for durability and reliability in demanding environments.
  • Automatic discharge of the test object after measurement completion for added safety.
  • Li-ion battery (4400 mAh) for extended operational time and flexible battery/mains power options.
  • Isolated RS-232, USB communication ports, and Bluetooth connectivity for seamless data transfer and device management.
  • Programmable timers and AUTO SEQUENCEs for automated, efficient, and consistent testing workflows.
  • Results displayed in both numerical and graphical formats for easy interpretation and analysis.

What’s Included:

  • MI 3211 TeraOhmHP 10 kV Instrument
  • A 1794 HV test lead, 3m, Black banana plug/Crocodile clip – Shielded, 15kV
  • A 1795 HV test lead, 3m, Blue banana plug/Crocodile clip – 15kV
  • A 1793 HV test lead, 3m, Red banana plug/Crocodile clip – 15kV
  • A 1728 Power cable, 2m, 3×0.75mm2, IEC C13/Type E connector
  • A 1727 USB cable Type A/B
  • A 1772 Soft carrying bag, Size: XXL
  • Metrel ES Manager BASIC Licence
  • SW 1201 Metrel ES Manager (program installation)
  • Short form instruction manual
  • Calibration certificate
MI 3211 – 10 kVMI 3215 – 15 kV
Extra Features
AUTOSEQUENCESAUTOSEQUENCE Programmable
Advanced User InterfaceColour Display
Main Features
Voltage DCVoltage DC
Voltage ACFrequency
Voltage TRMS
Mains voltage
Insulation ResistanceTest Voltage 50 V
Test Voltage 100 V
Test Voltage 250 V
Test Voltage 500 V
Test Voltage 550 V
Test Voltage 1000 V
Test Voltage 1200 V
Test Voltage 1500 V
Test Voltage 2500 V
Test Voltage 5000 V
Test Voltage 10000 V
Test Voltage 15000 V
Max Resistance Range20 TOhm35 TOhm
Calculation of PI
Calculation of DAR
Calculation of DD
Graph R(t)
Test Voltage Display
Programmable Test Voltage with Small Steps
Adjustable Test Time
DC Ramp Voltage Test/Varistor Test
Step Voltage TEST
Automatic Discharge
Leakage CurrentDC Insulation Leakage✔✔
Additional Features
PASS / FAIL IndicatorsPASS/FAIL Indicators
Low Pass FilterNoise Immunity Filter
Data Averaging
DisplayLCD
Back Light
KeyboardVirtual Keyboard
Power SupplyRechargeable Batteries in Standard Delivery
Battery Powered
Power Supply 115 V (50-60Hz)
Power Supply 230 V (50-60Hz)
Graphical User InterfaceBar Graph
Communication PortCommunication Port USB
Communication Port RS232 – PS/2
Built-in BluetoothBuilt-in Bluetooth
MemorymicroSD Memory Card
Downloadable
Uploadable
IP ProtectionIP 65
Protection CategoryCAT IV600 V1000 V
Special Accessories
PC Software PackagePC Software Package
Battery ChargerBattery Charger
Electrical Energetics
Renewable Energy SourcesGenerator Stator Testing
Power DistributionInsulation Resistance Measurement of Transformer’s Windings
Insulation of Long Cables
Standards Applied
Instrument Safety Towards UserIEC/EN 61010-1 Safety requirements for electrical equipment for measurement, control, and laboratory use – Part 1: General requirements
IEC/EN 61010-031 Amendment 1 – Safety requirements for electrical equipment for measurement, control and laboratory use – Part 031: Safety requirements for hand-held and hand-manipulated probe assemblies for electrical test and measurement
IEC/EN 61010-2-030 Safety requirements for electrical equipment for measurement, control, and laboratory use – Part 2-030: Particular requirements for equipment having testing or measuring circuits
IEC/EN 61010-2-034 Safety requirements for electrical equipment for measurement, control, and laboratory use – Part 2-034: Particular requirements for measurement equipment for insulation resistance and test equipment for electric strength
EMC safetyIEC/EN 61326-1 Electrical equipment for measurement, control and laboratory use – EMC requirements – Part 1: General requirements
  • MI 3211 TeraOhmHP 10 kV Instrument
  • A 1794 HV test lead, 3m, Black banana plug/Crocodile clip – Shielded, 15kV
  • A 1795 HV test lead, 3m, Blue banana plug/Crocodile clip – 15kV
  • A 1793 HV test lead, 3m, Red banana plug/Crocodile clip – 15kV
  • A 1728 Power cable, 2m, 3×0.75mm2, IEC C13/Type E connector
  • A 1727 USB cable Type A/B
  • A 1772 Soft carrying bag, Size: XXL
  • Metrel ES Manager BASIC Licence
  • SW 1201 Metrel ES Manager (program installation)
  • Short form instruction manual
  • Calibration certificate

🚚 Testersmans Shipping Policy

Free Mainland GB Delivery Over £150

We offer free delivery on most mainland Great Britain orders over £150 (ex VAT).
This applies across England, Wales, and most of Scotland, excluding certain remote or offshore postcodes.

If your order total falls just short of £150, or you’re a returning customer, feel free to contact us — we may be able to offer a discount code or delivery workaround.
📞 01945 738112 | ✉️ [email protected]


📦 UK Delivery Options

We work with both Royal Mail and DHL to offer reliable and flexible delivery across the UK:

  • Royal Mail – Best suited for lighter parcels and for customers in remote regions, including the Highlands, Islands, and Northern Ireland.
  • DHL – Ideal for most mainland UK orders, providing fast, tracked delivery and excellent reliability for time-sensitive shipments.

Our checkout system automatically displays the available delivery services for your postcode and order weight, ensuring you always see the most suitable options.

Note: Heavy, bulky, or freight-only orders will be charged separately.
Our website is designed for quick, transactional purchases rather than bulk or palletised orders.
Please contact us in advance for a tailored freight quotation if your order falls into this category.


⏱ Dispatch & Delivery Timing

We aim to dispatch all in-stock orders promptly, but delivery depends on both when you order and which service you select.

  • UK orders: placed by 2:00 PM Monday–Friday are usually dispatched the same day.
  • International orders: placed by 2:00 PM Monday–Thursday are usually dispatched the same day.

Orders placed after these times are processed the next working day. This means delivery may occur the following day or later, depending on the courier and service selected.

Once dispatched, your chosen delivery service determines how quickly your parcel arrives:

  • Standard services We use Royal Mail Tracked 24 or DHL Parcel as our ‘Standard’ services. They are not guaranteed to arrive next working day.
  • Premium services (e.g. Royal Mail Special Delivery or DHL by Noon) offer guaranteed delivery windows.

If your order is time-sensitive, we strongly recommend choosing a guaranteed service or contacting us before ordering to confirm availability.

Please note: For logistical reasons, we may occasionally adjust the delivery method selected at checkout. For example, smaller items may be better suited to letterbox-friendly packaging or may be at greater risk of delay or loss via certain services. We actively monitor courier and postal service disruptions—including strikes and delays—and may modify shipping arrangements to help ensure timely and secure delivery.


📅 Busy Periods & Delays

We always aim to dispatch promptly, but delivery times may be affected by:

  • Seasonal demand (e.g. Christmas, bank holidays, or industry shutdowns)
  • Courier network delays outside our control
  • Supplier lead times or calibration requirements for certain equipment

If your delivery is time-critical, please contact us before ordering so we can confirm stock and courier availability.


🌍 International Shipping

We ship worldwide using UPS Express Saver® and other trusted global courier partners. All international shipments are tracked and generally dispatched Monday to Thursday to ensure smooth customs clearance and transit.

Estimated delivery times:

  • Europe: 1–2 working days
  • North America: 2–3 working days
  • Asia-Pacific & Rest of World: 3–5 working days

Delivery times vary depending on location, customs clearance, and local courier performance.


💰 Taxes, Customs & Import Duties

International customers are responsible for any applicable taxes, customs charges, or import duties.
These are not included in our product or shipping prices.

Your courier will typically provide a secure payment link for any import charges once your parcel reaches customs.
If import fees are refused and the parcel is returned, we will issue a refund minus all incurred shipping and return costs.


📍 Using Your Own Courier

If you would prefer to arrange collection via your own courier (UK or international), please contact us before placing your order to coordinate collection from our Wisbech warehouse.


📝 Important Notes

  • Please ensure your delivery address and contact number are correct at checkout.
  • Undelivered parcels may be returned to us after a short holding period.
  • Redelivery or return fees may apply, even if your order originally qualified for free delivery.
  • By placing an order, you confirm your understanding and acceptance of this policy.