Martindale MM64 Digital Multimeter

Includes: MM64 multimeter, TL16 leads, K-type thermocouple, 1 x spare fuse, 9V battery and manual.

Reference MARMM64

Brand Martindale Electric

The Martindale MM64 is a manual ranging 3½ digit Multimeter which can measure AC/DC voltage, AC/DC current from 0.1μA to 200mA. Resistance measurements up to 20MΩ. Frequency is measured up to 40 kHz, capacitance from 0.01μF to 20mF and temperature (via the K-type thermocouple) from -35°C to 750°C.

The MM64 also has a continuity buzzer and diode test capabilities. Its rugged over-moulded case makes it the instrument of choice for many electrical engineers.

FEATURES

AC & DC voltage to 600V.
AC & DC current to 200mA.
Resistance to 20MΩ.
Capacitance to 20mF.
Frequency to 40kHz.
Temperature to 750°C/1400°F using Type K thermocouple.
Continuity with audible indication.
Diode testing.
Max/Min indication.
Display backlight.
Auto power off.

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 MM64 Digital Multimeter Specification

DC Voltage
Ranges	200mV, 2000mV, 20V, 200V, 600V.
Resolution	200mV, 2000mV, 20V, 200V, 600V.
Accuracy	±(0.5% of rdg + 1 digit).
Input Impedance	10MΩ.
Overload Protection	600V DC or AC RMS for 15 seconds on 200mV range.
AC Voltage (50 to 500Hz
Ranges	200mV, 2000mV, 20V, 200V, 600V.
Resolution	0.1mV, 0.001V, 0.01V, 0.1V, 1V.
Accuracy	200mV to 20V ranges: ±(1.2% of rdg + 4 digits) 200V to 600V range: ±(2.0% of rdg + 4 digits).
Input Impedance	10MΩ.
Overload Protection	600V DC or AC RMS. 600V DC or AC RMS for 15 seconds on 200mV range.
DC Current
Ranges	200μA, 20mA, 200mA.
Resolution	0.1μA, 0.01mA, 0.1mA.
Accuracy	±(1.0% of rdg + 1 digit).
Input Protection	0.25A/500V fast blow ceramic fuse.
AC Current (50 to 500Hz)
Ranges	200μA, 20mA, 200mA.
Resolution	0.1μA, 0.01mA, 0.1mA.
Accuracy	±(1.5% of rdg + 4 digits).
Input Protection	0.25A/500V fast blow ceramic fuse.
Resistance
Ranges	200Ω, 2kΩ, 200kΩ, 20MΩ.
Resolution	0.1, 0.001kΩ, 0.1kΩ, 0.01MΩ.
Accuracy	200Ω to 200kΩ ranges: ±(1.0% of rdg + 4 digits) 20MΩ range: ±(2.0% of rdg + 4 digits).
Open Circuit Voltage	0.3V DC (3.0V DC on 200Ω range).
Overload Protection	500V DC or AC RMS.
Capacitance
Ranges	200μF, 2mF, 20mF.
Resolution	0.1μF, 0.001mF, 0.01mF.
Accuracy	±(4.0% of rdg + 10 digits).
Test Frequency	21 Hz.
Test Voltage	<3.0V.
Input Protection	0.25A/500V fast blow ceramic fuse.
Frequency (Auto-ranging)
Ranges	2kHz, 20kHz, 40kHz.
Resolution	0.001kHz, 0.01kHz, 0.1kHz.
Accuracy	±(0.1% of rdg + 3 digits).
Minimum Input	10Hz.
Input Sensitivity	3.5V RMS minimum.
Overload Protection	500V DC or AC RMS.
Temperature
Range	200 to 1400°F.
General Specifications
Display	3½ digit liquid crystal display with a maximum reading of 1999.
Polarity	Automatic, positive implied, negative polarity indication.
Overrange	(OL) or (-OL) is displayed.
Zero	Automatic.
Measurement rate	2.5 times per second, nominal.
Auto power off	After approx 25 minutes.
Operating environment	0°C to 50°C at < 70% RH.
Storage temperature	-20°C to 60°C at < 80% RH.
Power	Single standard 9 volt battery, NEDA 1604, JIS006P, IEC 6F22.
Battery life	150 hours typical with carbon-zinc.
Dimensions	165mm (H) x 78mm (W) x 42.5mm (D).
Weight	Approx. 285g.
Martindale MM64 warranty	2-years.