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Megger MTR105 Rotating Machine Tester, 100 Ω to 200 GΩ, 10 mV to 1000 V AC/0 to 1000 V DC

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$3,057.60
SKU:
MTR105
Condition:
New
Availability:
5 to 6 Weeks

5 to 6 Weeks

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Megger MTR105 Rotating Machine Tester, 100 Ω to 200 GΩ, 10 mV to 1000 V AC/0 to 1000 V DC

$3,057.60

Megger MTR105 Rotating Machine Tester, 100 Ω to 200 GΩ, 10 mV to 1000 V AC/0 to 1000 V DC is available at EquipTestPro.com with fast shipping and great prices.

Megger MTR105 Offers

Ideal for many applications, this rotating machine tester features a guard terminal, to eliminate any surface leakage current and detachable test leads with interchangeable clips and probes. Additionally, test results can be downloaded to a USB storage device, which can be accessed by connecting to a PC.

Features

  • Full colour graphic display
  • 3 Phase insulation resistance
  • Temperature correction for insulation resistance
  • Guard terminal
  • DLRO four wire kelvin
  • Continuity and diode test
  • Motor direction of rotation
  • Capacitance and inductance
  • CAT III 600 V up to 3000 m
  • Environmental protection to IP54
  • Guard terminal, to eliminate any surface leakage current
  • Detachable test leads with interchangeable clips and probes for different applications
  • Stores test results for up to 256 motors, which can be downloaded to a USB mass storage device
  • Rotary dial control, full graphic display, simple and easy to use
  • Environmental protection to IP54, providing protection against moisture and dust ingress, including the battery and fuse compartment
  • Tough housing: A rubber over moulding combines a tough shock absorbing outer protection with excellent grip, on a strong modified ABS housing, providing a robust case

Safety

  • Designed to be exceptionally safe to use. The fast detecting circuitry reduces the likelihood of damage to the instrument if accidentally connected to live circuits or across phases.
  • Meets the international requirements of IEC61010 and IEC61557
  • Live circuit detection and test inhibit on all measurements with user notification (except for direction of rotation measurements)
  • User selectable insulation test terminal lockout voltage 25 V, 30 V, 50 V, 75 V (default is 50 V)
  • Detection and inhibit functions when the protection fuse has failed
  • Suitable for use on CAT III applications and supply voltages to 600 V

Insulation Resistance Tests

  • Resistance range 100 Ω up to 200 GΩ
  • Supports PI, DAR, timed and temperature compensation
  • Stabilised insulation test voltage accurate to -0% +2% ±2 V, which provides a more accurate test voltage without the risk of over-voltage damage to circuits or components, the output voltage is maintained between 0 and 2% throughout the test range
  • Where a nonstandard test voltage is required, a variable range allows the exact test voltage to be selected from 10 V up to 999 V and is subject to the same stabilised output control
  • Dedicated buzzer button either ON, VISUAL or OFF
  • Adjustable buzzer for minimum resistance limit (0.5 up to 1000 MΩ)
  • Buzzer sounds on test pass

Voltmeter

  • Measures AC 10 mV up to 1000 V; DC 0 to 1000 V; True RMS (15 up to 400 Hz)
  • Three phase supply and direction of rotation

Continuity (Resistance) Tests

  • Single automatic resistance range from 0.01 Ω to 1 MΩ
  • Automatic test current selection uses the preferred test current for the load resistance under test (200 mA up to 4 Ω)
  • Bi-directional tests option automatically reverses the current without reconnecting leads
  • Lead resistance compensation (NULL) operates up to 10 Ω of resistance
  • Dedicated buzzer switch either ON, VISUAL or OFF
  • Adjustable buzzer for maximum resistance limit (1 to 200 Ω in 12 steps)
  • Buzzer sounds on test pass

DLRO Four Wire Kelvin Low Resistance

  • Automatic resistance range from 1 mΩ up to 10 Ω
  • Selectable auto or manual test
  • Bi-direction or single direction
  • Bi-directional tests option automatically reverses the current without reconnecting leads
  • 200 mA test current

Motor Direction of Test

Tests the direction of rotation of the motor under test and displays the phase sequence on screen. The connected motor is rotated in one direction and the display shows sequence of the phases of rotation. The motor is next rotated in the opposite direction, the phases are checked again and shown on the display.

Inductance, Capacitance and Resistance Meter (LCR)

Auto inductive, capacitive and resistive test. Frequency selectable to 120 or 1000 Hz. In AUTO mode, the unit automatically determines if the main element of the load is inductive, capacitive or resistive and displays the result on screen. Selectable inductance and capacitance test.

Temperature

Temperature measurement of unit under test, via the supplied thermocouple, allows temperature compensation to be applied in insulation resistance tests.

Display

Full colour graphic display makes the MTR105 simple to understand and easy to use.

Guard Terminal

The guard terminal (G) is a third terminal on the connection panel. Connection of the guard terminal, on certain applications, provides a return path for parallel leakage currents, which could otherwise create significant errors in the insulation measurement. This is especially so for surface contamination of equipment or cables.

Storage and Download of Results

Test results can be downloaded to a USB mass storage device, which can be accessed by connecting to a PC or a Laptop running PowerDB.

Instrument Software Updates

Occasional information bulletins and software updates may be issued on the web site.

Applications

  • Production tests for new manufactured motors and generators
  • Test repaired and refurbished motors and generators
  • Monitoring and maintenance of in service motors (off line) in the field
  • Utilities: Electrical power generation, water, oil/gas
  • Industrial: Production line / factory maintenance teams
  • HVAC field engineers
  • OEM: Motors/generators
  • Service: Motor repair workshops
  • Transport: Rail, electric vehicles, marine, etc


Megger MTR105 Specifications

Specifications

Insulation ResistanceVolts/Accuracy:50 V; 10 GΩ ±2% ±2 digits ±4.0% per GΩ100 V; 20 GΩ ±2% ±2 digits ±2.0% per GΩ250 V; 50 GΩ ±2% ±2 digits ±0.8% per GΩ500 V; 100 GΩ ±2% ±2 digits ±0.4% per GΩ1000 V; 200 GΩ ±2% ±2 digits ±0.2% per GΩPolarisation index (PI): 10 minute/1 minute ratioDielectric absorption ratio (DAR): User configurable 15 seconds or 30 seconds t1 start time with t2 fixed at 60 secondsGuard terminal performance: <5% error at 500 kΩ parallel circuit resistance with 100 MΩ loadResolution: 0.1 kΩShort circuit/charge current: 2 mA +0% -50% (IEC61557-2)Terminal voltage accuracy: -0% +2% ±2 VTest current: 1 mA at minimum pass value of insulation to a maximum of 2 mAOperation range: 0.10 MΩ to 1.0 GΩ (IEC61557-2)Leakage current display: 0.1 uA resolution 10% (±3 digits)Voltage display: ±3% ±2 digits ±0.5% of rated voltageNote: Above specifications only apply when high quality silicone leads are being used - as supplied with the instrument.
ContinuityMeasurement: 0.01 Ω to 1 MΩ (0 to 1000 kΩ analogue scale)Accuracy: ±3% ±2 digits (0 to 99.9 Ω); ±5% ±2 digits (100 Ω to 500 kΩ)Test current: 200 mA (-0 mA +20 mA), 0.01 to 4 ΩPolarity: Single or Dual (factory default) polarityLead resistance: Null up to 10 ΩSelectable current limit: 20 and 200 mA
CapacitanceRange: 0.1 nF to 1 mFAccuracy: ±5.0% ±2 digits (1 nF to 10 μF)
VoltmeterRange: DC: 0 to 1000 V, AC: 10 mV to 1000 V, TRMS sinusoidal (15 to 400 Hz)Accuracy: DC ± 2% ±2 digits (0 to 1000 V), AC: ± 2% ±2 digits (10 mV to 1000 V TRMS)Frequency range: 15 - 400 Hz (50 mV to 1000 V)Frequency resolution: 0.1 HzFrequency accuracy ±0.5% ±1 digitDiode Test: Diode test accuracy: ±2% ±2 digits, 0.01 to 3 VDisplay range: 0 to 3 V
Temperature Measurement and CompensationThermocouple: Type T (Type K and Type J)Thermocouple range: 4 to 392°F (-20 to 200°C)Instrument range: 4 to 1832°F (-20 to 1000°C)Instrument resolution: 0.18°F (0.1°C)Instrument accuracy: ±1.8°F ±20 digits (1°C). Basic accuracy stated assumes forward and reverse measurements.
DLRO Four Wire Kelvin Low ResistanceTest current: 200 mA DCRange: 1 mΩ to 10 ΩResolution: 0.01 mΩAccuracy: ±0.25% rdg. ±10 digits, accuracy stated includes forward and reverse measurements.
Inductance (Instrument Accuracy)Range: 1 H, 200 mH, 20 mH, 2 mHAccuracy [+(Lx/10000)% +5 digits)]: ±0.7%, ±1%, ±0.7%, ±2%, ±1.2%, ±2%Test frequency: 1 kHz, 120 Hz, 1 kHz, 120 Hz, 1 kHz, 1 kHz only
Results StorageStorage capacity: 256 motor results (date/time stamped)Data download: USB Type A (USB Mass Storage Device)
TemperatureOperating: 14 to 122°F (-10 to 50°C)Storage: -13 to 122°F (-25 to 50°C)Calibration: 68°F (20°C)
Humidity90% RH at 104°F (40°C) maximum
Maximum Altitude9843' (3000 m)
IP ratingIP54
DisplayFull LCD colour screen with user configurable backlight
PowerBattery: 6 x IEC LR6 1.5 V Alkaline (AA)Battery life: 10 motors per (complete suite of tests at 100 V into 100 MΩ) IEC61557-2 - test cycle, 1200 insulation tests with duty cycle of 5 s testing on 25 s standby at 500 V into 0.5 MΩ. IEC61557-4 test cycle, 1200 continuity tests with duty cycle of 5 s testing on 25 s standby on 1 Ω resistance.Safety protection: IEC61010-1 CAT III 600 VEMC Industrial: IEC61326Temperature coefficien:t <0.1% per °C up to 1 GΩ
Dimensions8.98 x 4.1 x 2.95" (228 x 105 x 75 mm)
Weight2.02 lbs (0.93 kg)


What's included with the Megger MTR105
  • Rotating Machine Tester
  • Calibration Certificate
  • Temperature Probe
  • IR Lead Set
  • Kelvin Clip Lead Set
  • USB Memory Stick
  • Hook Strap Assembly
  • Soft Pouch
  • 6 x AA Batteries
  • Quick Start Guide


Megger MTR105 Rotating Machine Tester, 100 Ω to 200 GΩ, 10 mV to 1000 V AC/0 to 1000 V DC. Get Free Shipping when you order online at EquipTestPro.com.

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Shipping & Return Policy — EquipTestPro
Last Updated: February 1, 2026
Legal Policies

Shipping & Return Policy

Everything you need to know about orders, cancellations, refunds, and delivery.

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Section 01
Shipping Destinations

EquipTestPro ships to both Canada and the United States. We are pleased to serve customers across North America with reliable, trackable delivery options.

Please Note: Certain products are subject to restrictions and cannot be shipped to all destinations. Product-specific shipping availability is noted on each item's detail page. We do not currently ship to international destinations outside of Canada and the United States.
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Section 02
Shipping Rates

When you place an order, a flat-rate shipping charge will be applied at checkout based on your order. The applicable rate will be clearly displayed before you complete your purchase.

Flat-rate shipping is calculated to reflect the cost of reliable, insured delivery. The rate shown at checkout is final — no hidden surcharges will be added after your order is placed.

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Section 03
Weight-Based Shipping

For certain items, shipping costs are calculated based on the weight of the product. The weight of any weight-based item is listed on its product detail page.

Rounding Policy: To align with the policies of our shipping carriers, all item weights are rounded up to the next full pound when calculating shipping costs.

For example, an item weighing 3.2 lbs will be rated at 4 lbs for shipping calculation purposes. This policy is standard practice across all major carriers we work with.

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Section 04
Product Restrictions

Some products sold on EquipTestPro are subject to shipping restrictions due to regulatory, carrier, or safety requirements. These include but may not be limited to:

  • Hazardous or regulated materials
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Where restrictions apply, this will be clearly noted on the product listing. If you have questions about a specific product's shipping eligibility to your location, please contact us before placing your order.

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Section 05
Order Processing

Orders are processed on business days (Monday through Friday, excluding statutory holidays). Orders placed after business hours or on weekends will begin processing the following business day.

1
Order Confirmed You receive an email confirmation with your order details.
2
Order Processed Your order is verified and prepared for shipment (1–2 business days).
3
Shipped You receive a tracking number by email once your package is dispatched.
4
Delivered Delivery timelines vary by destination and carrier availability.
Section 01
Order Cancellation Rights

You are entitled to cancel your Order within 30 days of receipt without providing a reason, subject to the processing fee structure described below.

The cancellation deadline is 30 days from the date on which you received the Goods, or on which a third party appointed by you (other than the carrier) takes possession of the delivered product.

To exercise your cancellation right, notify us with a clear written statement by:

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Section 02
Cancellation Processing Fees

The following fee structure applies to all cancellations. Please review carefully before requesting a cancellation.

Customer-Initiated
10%

A processing fee of 10% of the total order value will be withheld from your refund to cover payment processing, handling, and administrative costs.

Company-Initiated (Item Unavailable)
$0

If we cancel your order due to item unavailability, no processing fee will be withheld. You receive a full refund of the amount paid.

Refunds will be issued using the same payment method as the original purchase. No additional fees beyond those described above will be applied.

Section 03
Conditions for Returns

To be eligible for a return, all of the following conditions must be met:

  • The Goods were purchased within the last 30 days
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  • A valid receipt or proof of purchase accompanies the return
Sale Items: Only regular-priced Goods are eligible for a refund. Items purchased on sale or at a discounted price cannot be refunded. This exclusion may not apply where prohibited by applicable law.

We reserve the right to refuse returns of any merchandise that does not meet the above conditions, at our sole discretion.

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Section 04
Non-Returnable Goods

The following items are not eligible for return under any circumstances:

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Section 05
How to Return Goods

You are responsible for the cost and risk of returning Goods to us. Before sending any items, please contact us at info@equiptestpro.com to obtain the return shipping address.

Important: We strongly recommend using an insured and trackable mail service. We cannot be held responsible for Goods damaged or lost during return shipment, and we are unable to issue a refund without confirmed receipt of the returned Goods or verifiable proof of delivery.
Section 06
Refund Timeline

You should expect to receive your refund within four (4) weeks of delivering your return package to the shipper. In many cases, refunds are processed sooner. The timeline breaks down as follows:

1
Transit to Us 5 to 10 business days for us to receive your return from the shipper.
2
Return Processing 3 to 5 business days to inspect and process your return once received.
3
Bank Processing 5 to 10 business days for your bank to post the refund to your account.

We will process refunds no later than 14 days from the day we receive the returned Goods, using the same payment method as your original purchase.

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Section 07
Gift Returns

If the Goods were marked as a gift at the time of purchase and shipped directly to you, a gift credit equal to the return value (less any applicable processing fee) will be issued. Once the returned product is received and inspected, a gift certificate will be mailed to you.

If the Goods were not marked as a gift at purchase, or if the gift giver had the order shipped to themselves first, the refund will be issued to the original purchaser.

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    All returns must be authorized. Items returned prior to authorization will not be accepted. For international customers where applicable, customers must ship any returns to us freight and duty prepaid. Return freight charges for internationsl shippments will be the responsibility of the customer.

    Defective new equipment may be returned for warrantyrepair/exchange to us within (5) days of the shipment receipt date. After five (5) days, returns will be handled by direct contact and in accordance with the warranty terms of the item's manufacturer. Items that have malfunctioned due to mishandling, electrical overload, etc., will be subject to repair charge.

    Non defective new equipment will be authorized for return within five (5) days of the shipment receipt date if the equipment is still in new, re-sellable condition with the original manual(s), accessories, packing material and carton. We reserve the right to reject returnsin which there is no original packaging, missing accessories, damage or visible signs of usage of the item. A restocking fee of up to 25% of purchase price may apply. Special orders and dangerous goods are non-returnable.

    (Do not write anytingon the manufacturer's original package or use as a shipping carton. Include all accessories, manuals and warranties.)

    Please, include a copy of the packing list or invoice with a reason for the return. Your return authorization number is valid for thirty (30) days.

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