CEM DT-3368 Operating Instruction
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CEM DT-3368 Operating Instruction

Ac/dc trms clamp meter
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OPERATING INSTRUCTION
MODEL DT- 3368
AC/DC TRMS Clamp meter
A
A
°
C
°
F
D C
A
m V
A C
k M

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Summary of Contents for CEM DT-3368

  • Page 1 OPERATING INSTRUCTION MODEL DT- 3368 AC/DC TRMS Clamp meter ° °...

  • Page 2: International Safety Symbols

    Safety International Safety Symbols This symbol, adjacent to another symbol or terminal, indicates the user must refer to the manual for further information. This symbol, adjacent to a terminal, indicates that, under normal use, hazardous voltages may be present Double insulation SAFETY NOTES ...
  • Page 3 CAUTIONS  Improper use of this meter can cause damage, shock, injury or death. Read and understand this user manual before operating the meter.  Always remove the test leads before replacing the battery or fuses.  Inspect the condition of the test leads and the meter itself for any damage before operating the meter.

  • Page 4: Meter Description

    Description Meter Description Current clamp Clamp opening trigger Control buttons: Backlight  Inrush / Mode  Max/Min  Data Hold  ° ° Hz/%/DC Zero  Backlit LCD Display COM negative input jack for black test lead Rotary function switch V··CAP·TEMP·Hz positive input jack for red lead Display icons Description HOLD...
  • Page 5 DC ZERO DCA Zero MAX/MIN Maximum/Minimum INRUSH Inrush Current AUTO Auto Range mode DC/AC Direct Current / Alternating Current Low battery mV or V Milli-volts or Volts (Voltage)  Ohms (Resistance) Amperes (Current) Farad (Capacitance) Hertz (Frequency) F and Fahrenheit and Celsius units (Temperatur n, m, , M, k Unit of measure prefixes: nano, milli, micro, mega, and kilo...

  • Page 6: Specifications

    Specifications Function Range & Accuracy Resolution reading) AC Current 660.0 AAC ± (2.5% +8digits) True RMS (50 Hz to 60 1000 AAC ± (2.8% +8digits) DC Current 660.0 ADC ± (2.5% +5digits) 1000 ADC ± (2.8% +8digits) 6.600 VDC DC Voltage 66.00 VDC ±...
  • Page 7 Duty Cycle 10.0 to 94.9% (1.2% reading + 2 digits) Pulse width: 100µs - 100ms, Frequency: 30Hz to 15kHz; Sensitivity: 30~5kHz:10Vrms min.5kHz~15kHz:40Vrms min. Temp -20 to 760C (3.0% reading + 5 C) (type-K) (probe (3.0% reading + 9F) -4 to 1400F accuracy included) General Specifications...
  • Page 8 AC response True rms (AAC and VAC) Operating Temperature F to 104 F (5 C to 40 Storage Temperature F to 140 F (-20 C to 60 Operating Humidity Max 80% up to 87 F (31 decreasing linearly to 50% at F (40 Storage Humidity <80%...

  • Page 9: Operation

    Operation NOTES: Read and understand all Warning and Caution statements in this operation manual prior to using this meter. Set the function select switch to the OFF position when the meter is not in use. AC/DC Current Measurements WARNING: Ensure that the test leads are disconnected from the meter before making current clamp measurements.

  • Page 10: Resistance Measurements

    Resistance Measurements Insert the black test lead into the negative COM terminal and the red test lead into the V··TEMP·Hz· positive terminal. Set the function switch to the position. Touch the test probe tips across the circuit or component under test. Read the resistance on the LCD display.

  • Page 11: Temperature Measurements

    Temperature Measurements Set the function switch to the TEMP position. Insert the Temperature Probe into the negative COM and the V··TEMP·Hz· positive jacks, observing polarity. Touch the Temperature Probe head to the device under test. Continue to touch the part under test with the probe until the reading stabilizes.
  • Page 12 Turn the function switch to position. Use the MODE button to select the diode function if necessary (diode symbol will appear on the LCD when in Diode test mode) Touch the test probe tips to the diode or semiconductor junction under test. Note the meter reading Reverse the test lead polarity by reversing the red and black leads.

  • Page 13: Lcd Backlight Button

    Data Hold To freeze the LCD reading, press the HOLD button. While data hold is active, the HOLD icon appears on the LCD. Press the HOLD button again to return to normal operation. DC ZERO (Relative) The DC ZERO is a relative feature and can be used in any function.

  • Page 14: Maintenance

    Maintenance WARNING: To avoid electrical shock, disconnect the meter from any circuit, remove the test leads from the input terminals, and turn OFF the meter before opening the case. Do not operate the meter with an open case. Cleaning and Storage Periodically wipe the case with a damp cloth and mild detergent;...

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