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DC CURRENT
Ranges:  
200µA, 20mA, 200mA, 10A
Resolution: 0.1µV
Accuracy:  ± (1.5% rdg + 1 digit) except 10A range

± (3% rdg + 3 digits) on 10A range

Input protection:  0.5A, 250V fast blow & 10A, 600V fast blow ceramic,
fuse.

AC CURRENT  (50Hz to 500Hz)
Ranges: 200µA, 20mA, 200mA, 10A
Resolution: 0.1µA
Accuracy:  ± (2% rdg + 4 digits) except 10A range

± (3.5% rdg + 4 digits) on 10A range

Input protection:  0.5A, 250V fast blow & 10A, 600V fast blow ceramic,
fuse.

RESISTANCE
Ranges:  
200

Ω

, 20k

Ω

, 200k

Ω

, 20M

Ω

Resolution:  100m

Ω

Accuracy:  ± (1.5% rdg + 4 digits) except on  20M

Ω

range

± (3% rdg + 4 digits) for 20M

Ω

range

Open circuit voltage:  0.3V DC typical (3V DC for 200

Ω

range)

CONTINUITY 
Audible tone: 
<100

Ω

Response time: 500mS
Overload protection: 500V DC or AC rms.

DIODE TEST
Test current:  
Approximately 1mA
Accuracy:  ± (2% rdg + 1 digit)
Open circuit voltage:  3V DC typical
Non-contact Voltage Indicator: Operates for voltages from 70V to 480V
AC, 50-60Hz.

NOTE: 
This instrument complies with class ll, overvoltage CAT lll, 600V of the
IEC1010-1 (EN61010-1) standard and pollution degree 2 in accordance
with IEC-664 indoor use.

This instrument also complies with the requirements of the following
European Community Directives: 89/336/EEC (Electromagnetic
Compatibility) and 73/23/EEC (Low Voltage) as amended by 93/68/EEC
(CE Marking).

However, electrical noise or intense electromagnetic fields in the vicinity of
the equipment may disturb the measurement circuit. Measurement
instruments will also respond to unwanted signals that may be present.
Users should exercise care and take appropriate precautions to avoid
misleading results in the presence of electromagnetic interference.

6

7

Summary of Contents for MM37

Page 1: ...ssary any faults that occur s away from direct nd in such a manner trongly advised that damage it ed for 2 years from e provided the unit s with its housing s not covered by the tatutory rights D24 4YY UK 6900 y 2005 MM37 DIGITAL MULTIMETER MARTINDALE ELECTRIC Trusted by professionals INSTRUCTIONS ...

Page 2: ... leads and any input signals before replacing the battery Replace only with the same type of battery This meter is powered by NEDA type 1604 or equivalent 9V battery When the meter displays the symbol the battery must be replaced to maintain proper operation To replace the battery remove the three screws from the back of the meter and open the bottom case remove the battery from battery compartmen...

Page 3: ...tinuity Test 3 7 Non Contact Voltage Indicator 3 8 Maximum Reading Mode 3 9 Hold Button 4 Maintenance 4 1 Cleaning 4 2 Battery Replacement 4 3 Fuse Replacement 4 4 Calibration 4 5 Repair Service 4 6 Storage Conditions 4 7 Warranty position uce a brief buzz and S on the top of the 60Hz AC voltage is esence of a voltage ble indication nected and AC DC r this mode lay and the reading further press of...

Page 4: ...de test 1 Select the switch position 2 Connect the red test lead to the VΩ socket and black lead to COM socket 3 Remove power from the circuit under test 4 Touch the probes across the diode and take a reading reverse the probes and again take a reading For a silicon diode a value between 0 5 0 6 should be obtained in the forward direction and 1 should be displayed for the reverse direction A value...

Page 5: ...ery life 200 hours typical Zinc carbon Dimensions 143 x 68 x 47mm 5 6 x 2 7 x 1 9 inches Weight 206g 7 3oz with battery fitted Included Set of test leads 9V battery fitted user manual DC VOLTS Ranges 200mV 2V 20V 600V Resolution 100µV Accuracy 1 2 rdg 1 digit Input impedance 10MΩ Overload protection 600V DC or AC rms 500V DC 350V rms for 15 secs on 200mV range AC VOLTS 50Hz to 500Hz Ranges 200mV 2...

Page 6: ...following European Community Directives 89 336 EEC Electromagnetic Compatibility and 73 23 EEC Low Voltage as amended by 93 68 EEC CE Marking However electrical noise or intense electromagnetic fields in the vicinity of the equipment may disturb the measurement circuit Measurement instruments will also respond to unwanted signals that may be present Users should exercise care and take appropriate ...

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