MarMonix MMU-110 User Manual

Auto ranging multimeter

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AUTO RANGING MULTIMETER

Products Code: MMU-110

WWW.MARMONIX.CO

User Manual

A U T O

R E L

D C

A C

M o d e

R a n g e

T EM P

1 0 A

C O M

M A X

e v e ry

1 5 m in .

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Page 1 AUTO RANGING MULTIMETER Products Code: MMU-110 User Manual A U T O R E L M o d e R a n g e Ω T EM P 1 0 A C O M μ M A X e v e ry 1 5 m in .
Page 2: Safety Information
SAFETY INFORMATION The following safety information must be observed to insure maximum personal safety during the operation at this meter:  Do not use the meter if the meter or test leads look damaged, or if you suspect that the meter is not operating properly. ...
Page 3: Safety Symbols
on the front of the meter.  Never apply voltage or current to the meter that exceeds the specified maximum: SAFETY SYMBOLS This symbol adjacent to another symbol, terminal or operating device indicates that the operator must refer to an explanation in the Operating Instructions to avoid personal injury or damage to the meter.
Page 4: Controls And Jacks
exceeds (in this case) 500 VAC or VDC. This symbol adjacent to one or more terminals identifies them as being associated with ranges that may, in normal use, be subjected to particularly hazardous voltages. For maximum safety, the meter and its test leads should not be handled when these terminals are energized.
Page 5: Symbols And Annunciators
4000 count Liquid Crystal Display with symbolic signs Function switch 10A (positive) input jack for 10A DC or AC measurements COM (negative) input jack Positive input jack MODE pushbutton Range pushbutton Data Hold & Backlight pushbutton Relative pushbutton SYMBOLS AND ANNUNCIATORS Continuity Low Battery Diode...
Page 6: Specifications
SPECIFICATIONS The instrument complies with: EN61010-1. Insulation: Class2, Double insulation. Overvoltage category: CATIII 1000V, CATIV 600V . Display: 4000 counts LCD display with function indication. Polarity: Automatic, (-) negative polarity indication. Overrange: “OL” mark indication. Low battery indication: The “BAT” is displayed when the battery voltage drops below the operating level.
Page 7 Accuracy is given at 18 o C to 28 o C (65 o F to 83 o F), less than 70 % RH DC Voltage (Auto-ranging) Range Resolution Accuracy 400.0mV 0.1mV +0.5% of rdg + 2 dgts 4.000V +1.2% of rdg + 2 dgts 40.00V 10mV 400.0V...
Page 8 DC Current (Auto-ranging for uA and mA) Range Resolution Accuracy 10mA +2.5% of rdg + 5 dgts Overload Protection: 10A / 600V Fuse. Maximum Input: 10A dc or ac rms on 10A range. AC Current (Auto-ranging for uA and mA) Range Resolution Accuracy...
Page 9 Capacitance (Auto-ranging) Range Resolution Accuracy 40.00nF 10pF +5.0% of rdg +50 dgts 400.0nF 0.1nF +3.0% of rdg + 5 dgts 4.000uF 40.00uF 10nF 100.0uF 0.1uF +5.0% of rdg + 5 dgts Input Protection: 1000V dc or 1000V ac rms. Frequency (Auto-ranging) Range Resolution Accuracy...
Page 10 Sensitivity: >0.5V RMS Overload protection: 1000V dc or ac rms. Temperature Range Resolution Accuracy -20 o C~+760 o C 1 o C +3% of rdg -4 o F~+1400 o F 1 o F +5 o C/9 o F Sensor: Type K Thermocouple Overload protection: 1000V dc or ac rms..
Page 11: Operation
OPERATION WARNING: Risk of electrocution. High-voltage circuits, both AC and DC, are very dangerous and should be measured with great care. ALWAYS turn the function switch to the OFF position when the meter is not in use. This meter has Auto OFF that automatically shuts the meter OFF if 15 minutes elapse between uses.
Page 12: Data Hold Button
situations requiring that a range be manually selected, perform the following: Press the RANGE button. The “AUTO” display indicator will turn off. Press the RANGE button to step through the available ranges until you select the range you want. 3. Press and hold the RANGE button for 2 seconds to exit the ManualRanging mode and return to AutoRanging.
Page 13: Dc Voltage Measurements
1. Perform any measurement as described in the operating instructions. 2. Press the RELATIVE button to store the reading in the display and the "REL" indicator will appear on the display. 3. The display will now indicate the difference between the stored value and the measured value.
Page 14: Ac Voltage Measurements
AC VOLTAGE MEASUREMENTS CAUTION: Do not measure AC voltages if a motor on the circuit is being switched ON or OFF. Large voltage surges may occur that can damage the meter. 1. Set the function switch to the V AC position. 2.
Page 15: Ac Current Measurements
4. Remove power from the circuit under test, then open up the circuit at the point where you wish to measure current. 5. Touch the black test probe tip to the negative side of the circuit. Touch the red test probe tip to the positive side of the circuit. 6.
Page 16 5. Touch the black test probe tip to the negative side of the circuit. And touch the red test probe tip to the positive side of the circuit. 6. Apply power to the circuit. 7. Read the current in the display. The display will indicate the proper decimal point, value and symbol.
Page 17: Resistance Measurements
RESISTANCE MEASUREMENTS WARNING: To avoid electric shock, disconnect power to the unit under test and discharge all capacitors before taking any resistance measurements. Remove the batteries and unplug the line cords. 1. Set the function switch to the  position. 2.
Page 18: Diode Test
will sound. The display will also show the actual resistance. DIODE TEST WARNING: To avoid electric shock, do not test any diode that has voltage on it. 1. Set the function switch to position. 2. Press the button until the symbol appears in the display.
Page 19: Frequency Measurement
FREQUENCY MEASUREMENT 1. Set the function switch to the FREQ position. 2. Insert the black test lead banana plug into the negative (-) jack (COM) and the red test lead banana plug into the positive (+) jack (F). 3. Touch the test probe tips to the circuit under test. 4.
Page 20: Temperature Measurements
TEMPERATURE MEASUREMENTS WARNING: To avoid electric shock, disconnect both test probes from any source of voltage before making a temperature measurement. 1. If you wish to measure temperature in F, set the function switch to the F range. If you wish to measure temperature in C, set the function switch to the C range.
Page 21: Replacing The Battery
REPLACING THE BATTERY WARNING: To avoid electric shock, disconnect the test leads from any source of voltage before removing the battery door. When the batteries become exhausted or drop below the operating voltage, “BAT” will appear in the right-hand side of the LCD display. The battery should be replaced.
Page 22: Replacing The Fuses
WARNING: To avoid electric shock, do not operate the meter until the battery door is in place and fastened securely. NOTE: If your meter does not work properly, check the fuses and battery to make sure that they are still good and that they are properly inserted. REPLACING THE FUSES WARNING: To avoid electric shock, disconnect the test leads from any source of voltage before removing the fuse door.