Martindale MM39 Auto-Ranging Digital Multimeter

Includes: Martindale MM39 multimeter, test leads, 1.5V battery x2 (installed) and operating instructions.

Reference MARMM39

Brand Martindale Electric

The Martindale MM39 auto-ranging multimeter all the test functions required to complete your testing easily. The meter has a large rotary switch which allows you to quickly select the test you require.

The results are displayed on a a 3½ digit LCD screen, and the MM39 has a button to lock the range and the other to hold the results. The meter also has a manual range mode. In manual range, you select and lock the meter in a range.

The MM39 measures both AC and DC voltage between 0.1mV to 600V and AC and DC current between 10mA to 10A. Other functions include resistance up to 20MΩ, a diode test and an audible continuity test.

FEATURES

600V AC/DC - 200mV, 2V, 20V, 200V, 600V.
10A AC/DC current.
6 resistance ranges to 20MΩ.
Diode & Continuity Test.
Data hold.
Audible continuity indication: Less than 25Ω.
3½ digit liquid crystal display (LCD).
600V CAT III safety rating.

Martindale DMM Comparison Chart

MODEL	MM39	MM64	MM65
AC/DC Voltage	✔	✔	✔
AC/DC Current	✔	✔	✔
Resistance / Continuity	✔	✔	✔
Diode test	✔	✔	✔
Frequency		✔
Capacitance		✔
True RMS
Auto-ranging	✔		✔
Backlight		✔
Overmoulded Holster	✔	✔	✔
Other		Min/Max Temperature
Safety rating	CAT III 600V	CAT III 600V	CAT IV 600V

Martindale MM39 Digital Multimeter Specifications

DC Volts
Display	3.5 inch digit liquid crystal display (LCD) with max reading of 1999.
Polarity	Automatic, positive implied, negative polarity indication.
Overrange	(OL) or (-OL) is displayed.
Zero	Automatic.
Low battery	Symbol displayed when below certain level.
Measurement Rate	2 times per second, nominal.
Auto Power Off	Approx. 10 mins.
Operating Environment	0 to 50°C at <70% relative humidity.
Storage Temperature	-20 to 60°C at <80% relative humidity.
Accuracy	Stated accuracy at 23°C ±5°C, <75% relative humidity.
Temperature Coefficient	0.1 x (specified accuracy) per °C (0 to 18°C, 28-50°C).
Altitude	6561.7 feet (2000m).
Power	1.5V batteries x 2, RO3/Size AAA.
Battery Life	200 hours typical with carbon-zinc.
Ranges	200mV, 2V, 20V, 200V, 600V.
Resolution	0.1mV.
Accuracy	±(1.0% rdg + 2 dgts).
Input Impedance	200mV: >100MΩ: 2V: 10MΩ, 20V-600V: 9.1MΩ.
Overload Protection	600VDC or AC RMS.
AC Volts (50Hz-500Hz)
Ranges	200mV, 2V, 20V, 200V, 600V.
Resolution	0.1mV.
Accuracy	±(2.0% rdg + 5dgts) 50Hz-100Hz on 200mV range, ±(2.0% rdg + 5 dgts).
Input Impedance	200mV: >100MΩ: 2V: 10MΩ, 20V-600V: 9.1MΩ.
Overload Protection	600V DC or AC rms.
Current
Ranges	10A.
Resolution	0.01A.
DC Accuracy	±)3.0% rdg + 3 dgts).
AC Accuracy	(50Hz-500Hz) ± (3.5% rdg + 5 dgts).
Voltage Burden	0.2V.
Input Protection	10A/500V fast blow ceramic fuse.
Resistance
Ranges	200Ω, 2kΩ, 20kΩ, 200kΩ, 2MΩ, 20MΩ.
Resolution	0.1Ω.
Accuracy	±(1.5% rdg + 4 dgts) on 200Ω to 200kΩ ranges ±(2.5% rdg +4 dgts) on 2MΩ range ±(5.0% rdg + 5 dgts) on 20MΩ range.
Open Circuit Volts	-0.45Vdc (-1.2Vdc on 200Ω range).
Overload Protection	500V DC or AC rms.
Diode Test
Test Current	1.0mA (approximate).
Accuracy	±(3.0% rdg + 3 dgts).
Resolution	10mV.
Audible Indication	<0.25V.
Open Circuit Volts	3.0Vdc typical.
Overload Protection	500V DC or AC rms.
Continuity
Audible Indication	Less than 25Ω.
Response Time	500ms.
Overload Protection	500V DC or AC rms.
Dimensions	145mm (H) x 70mm (W) x 34mm (D).
Weight	Approx 11.1oz (315g) including holster.
MM39 warranty	Two-years.