| Model: MTR105 Specifications |
| Insulation resistance |
| Volts / Accuracy |
50 V 10 GΩ ±2% ±2 digits ±4.0% per GΩ
100 V 20 GΩ ±2% ±2 digits ±2.0% per GΩ
250 V 50 GΩ ±2% ±2 digits ±0.8% per GΩ
500 V 100 GΩ ±2% ±2 digits ±0.4% per GΩ
1000 V 200 GΩ ±2% ±2 digits ±0.2% per GΩ |
| Polarization index (PI): |
10 min / 1 minute ratio |
| Dielectric absorption ratio (DAR) |
User configurable 15 s or 30 s t1 start time with t2 fixed at 60 s |
| Guard terminal performance |
<5% error at 500 kΩ parallel circuit resistance with 100 MΩ load |
| Resolution |
0.1 kΩ |
| Short circuit/charge current |
2 mA +0% -50% (IEC61557-2) |
| Terminal voltage accuracy |
-0% +2% ±2 V |
| Test current |
1 mA at min. pass value of insulation to a max. of 2 mA |
| Operation 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 voltage |
| Note: Above specifications only apply when high quality silicone leads are being used - as supplied with the instrument. |
| Continuity |
| Measurement |
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 - 500 kΩ) Test current |
| Test current |
200 mA (–0 mA +20 mA)
(0.01 Ω - 4 Ω) |
| Polarity |
Single or Dual (factory default) polarity |
| Lead resistance |
Null up to 10 Ω |
| Selectable current limit |
20 mA and 200 mA |
| Capacitance |
| Range |
0.1 nF - 10 mF |
| Accuracy |
±5.0% ±2 digits (1 nF - 10 μF) |
| Voltmeter |
| Range |
dc: 0 - 1000 V
ac: 10 mV - 1000 V
TRMS sinusoidal (15 Hz - 400 Hz) |
| Accuracy |
dc: ± 2% ±2 digits (0 - 1000 V)
ac: ± 2% ±2 digits
(10 mV - 1000 V TRMS) |
| Frequency range |
15 - 400 Hz (50 mV - 1000 V) |
| Frequency resolution |
0.1 Hz |
| Frequency accuracy |
±0.5% ±1 digit |
| Diode Test |
Diode test accuracy: ±2% ±2 digits
0.01 V to 3.00 V |
| Display range |
0.00 V to 3.00 V |
| Temperature measurement and compensation |
| Thermocouple |
Type T (Type K and Type J) |
| Thermocouple range |
-20 °C to 200 °C (4 °F - 392 °F) |
| Instrument range |
-20 °C to 1000 °C (4 °F - 1832 °F) |
| Instrument resolution |
0.1 °C (0.18 °F) |
| Instrument accuracy |
±1.0 °C ±20 digits (1.8 °F). (Basic accuracy stated assumes forward and reverse measurements.) |
| DLRO four wire Kelvin low resistance |
| Test current |
200 mA dc |
| Range |
1 mΩ to 10 Ω |
| Resolution |
0.01 mΩ |
| Accuracy |
± 0.25% rdg. ± 10 digits, accuracy stated includes forward and reverse measurements |
| Results storage |
| Storage capacity |
256 motor results
(date / time stamped) |
| Data download |
USB Type A (USB Mass Storage Device) |
| Power |
| Battery |
6 x IEC LR6 1.5 V Alkaline (AA), IEC FR6 1.5 V Lithium (LiFeS 2 ), IEC HR6 1.2 V NiMH (rechargeable option). |
| 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 sec standby @ 500 V into 0.5 MΩ. IEC61557-4 test cycle, 1200 continuity tests with duty cycle of 5 sec testing on 25 sec standby on 1 Ω resistance. |
| Battery charging |
Mains battery charger kit. |
| Safety protection |
IEC61010-1 CAT III 600 V |
| EMC |
Industrial IEC61326 |
| Temperature coefficient |
<0.1% per °C up to 1 GΩ |
| Environment |
| Operating temperature rang |
10 °C to 50 °C (14 °F to 122 °F) |
| Storage temperature range |
-25 °C to 50 °C (-13 °F to 122 °F) |
| Humidity |
90% RH at 40 °C (104 °F) max. |
| Calibration temperature |
20 °C (68 °F) |
| Maximum altitude |
3000 m (9843 ft.) |
| IP rating |
IP54 |
| Physical |
| Display |
Full LCD color screen with user configurable backlight |
| Languages |
English, French, German and Spanish |
| Dimensions |
228 x 105 x 75 mm (8.98 x 4.1 x 2.95 in) |
| Weight |
0.93 kg (2.02 lbs) |
| Fuse |
x2 500 mA (FF) 1000 V 32 x 6 mm ceramic fuse, high break capacity HBC, 30 kA minimum. Glass fuses must not be installed. |