OPERATING INSTRUCTIONS AUTORANGING DIGITAL MULTIMETER PDMT25 ¡C ã ¡F ã Ω 10A V V ¦¸ 10A ¡ã ¡ã A mA www.pyleaudio.
SAFETY WARNINGS The following safety information must be observed to insure maximum personal safety during the operation at this meter: Measurements beyond the maximum selected range must not be attempted. Extreme care must be taken when measuring above 50 V, especially on live bus-bars. To measure voltage, the instrument must not be switched to a current or resistance range, or to the diode check or buzzer position.
Replacement fuses must be of the correct type and rating. The instrument must not be used if any part of it is damaged. Warnings and precautions must be read and understood before an instrument is used. They must be observed during the operation of this instrument. Symbols used on this instrument are: Caution: refer to accompanying notes. This symbol indicates that the operator must refer to an explanation in the Operating Instructions to avoid personal injury or damage to the meter.
This CAUTION symbol indicates a potentially hazardous situation, which if not avoided, may result damage to the product. MAX This symbol advises the user that the terminal(s) so marked must not be connected to a circuit point at which the voltage with respect to earth ground exceeds (in this case) 1000 VAC or VDC. Equipment protected throughout by Double Insulation (Class II) Equipment complies with current EU directives.
SYMBOLS AND ANNUNCIATORS ))) Continuity BAT Low Battery Diode test HOLD Data Hold AUTO AutoRanging AC Alternating Current or Voltage DC Direct Current or Voltage MAX/MIN Stores the highest or lowest measurement PEAK Find glitches and transients without a scope Backlight V Volts A, mA,uA Current range 5
OPERATION To turn on the instrument turn the range knob from the OFF position to any measurement range. Note: For best battery life 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 30 minutes elapse between uses. NOTE: On some low AC and DC voltage ranges, with the test leads not connected to a device, the display may show a random, changing reading. This is normal and is caused by the high-input sensitivity.
measurement for later reference. 1. Press the HOLD button to “freeze” the reading on the indicator. The “HOLD” message will be appear in the display. 2. Press the HOLD button again to return to normal operation. BACKLIGHT button 1. Press the BACKLIGHT button to switch on the display light. 2. Press BACKLIGHT button again to exit the light mode. MAX/MIN button The MAX/MIN function allows the meter to capture the highest or lowest measurement for later reference. 3.
Peak Hold button The Peak Hold function captures the peak AC or DC voltage or current. The meter can capture negative or positive peaks as fast as 1 millisecond in duration. 1. Turn the function switch to the A or V position. 2. Use the MODE button to select AC or DC. 3. Allow time for the display to stabilize. 4. Press and Hold the PEAK button until “CAL” appears in the display. This procedure will zero the range selected. 5. Press the PEAK button, Pmax will display. 6.
for the new function selected. RANGE button When the meter is first turned on, it automatically goes into AutoRanging. This automatically selects the best range for the measurements being made and is generally the best mode for most measurements. For measurement situations requiring that a range be manually selected, perform the following: 1. Press the RANGE button. The “Auto Range” display indicator will turn off, The “Manual Range” display indicator will turn on 2.
4. DC/DC VOLTAGE MEASUREMENT 1.sert the black test lead into the negative COM terminal and the red test lead into the positive V terminal. 2. Set the function switch to the VAC or VDC position. 3.Use the MODE button to select AC or DC Voltage 4.Connect the test leads in parallel to the circuit under test. 5.Read the voltage measurement on the LCD display DC CURRENT MEASUREMENT 1. Insert the black test lead banana plug into the negative (COM) jack. 2.
test lead banana plug into the 10A jack. 5. Press the AC/DC button until “DC” appears in the display. 6. Remove power from the circuit under test, then open up the circuit at the point where you wish to measure current. 7. 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. 8. Apply power to the circuit. 9. Read the current in the display. The display will indicate the proper decimal point, value and symbol.
AC CURRENT MEASUREMENT 1. Insert the black test lead plug into the negative (COM) socket. 2. For current measurements up to 10A, set the function switch to the A position and insert the red test lead plug into the (10A) jack. 3. For current measurements up to 400mA, set the function switch to the mA range and insert the red test lead banana plug into the (mA) jack. 4. For current measurements up to 10A AC, set the function switch to the A position and insert the red test lead banana plug into the 10A jack.
indicate the proper decimal point, value and symbol. RESISTANCE [ Ω ] MEASUREMENT 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 Ω position. 2. Insert the black test lead plug into the negative (COM) socket and the red test lead plug into the positive Ω jack. 3. Press the MODE button until “Ω” appears in the display. 4.
CONTINUITY CHECK WARNING: To avoid electric shock, never measure continuity on circuits or wires that have voltage on them. 1. Set the range switch to the ))) position. 2. Insert the black lead plug into the COM socket and the red test lead plug into the positive ))) socket. 3. Press the MODE button until “)))” appears in the display. 4. Touch the test probe tips to the circuit or wire you wish to check. 5. If the resistance is less than 35Ω, the audible signal will sound.
DIODE TEST WARNING: To avoid electric shock, do not test any diode that has voltage on it. 1. Set the function switch to the position. 2. Insert the black test lead plug into the COM socket and the red test lead plug into the 3. Press the MODE button until “ socket. ” appears in the display. 4. Touch the test probe tips to the diode or semiconductor junction you wish to test. Note the meter reading. 5. Reverse the probe polarity by switching probe position. Note this reading. 6.
CAPACITANCE MEASUREMENT WARNING: To avoid electric shock, discharge the capacitor under test before measuring. 1.Set the function switch to the CAP capacitance position. 2. Insert the black test lead banana plug into the negative COM jack and the red test lead banana plug into the CAP positive jack. 3. Touch the test probe tips across the part under test. 4. Read the capacitance value in the display. 5.The display will indicate the proper decimal point and value.
FREQUENCY MEASUREMENT 1. Set the function switch to the Hz position. 2. Insert the black test lead banana plug into the negative (COM) jack and the red test lead banana plug into the positive Hz jack. 3. Touch the test probe tips to the circuit under test. 5. Read the frequency in the display. The digital reading will indicate the proper decimal point, symbols (kHz, MHz) and value. TEMPERATURE MEASUREMENT 1. Set the function switch to the Type K ºF or ºC position. 2.
5. Read the temperature in the display. Note: The temperature probe is fitted with a type K mini connector. A mini connector to banana connector adaptor is supplied for connection to the input banana jacks.
SPECIFICATIONS Technical: Insulation: Class2, Double insulation. Overvoltage category: CATIV 600V,CATIII 1000V NOTE: These meters meet CAT III and CAT IV IEC 61010 standards. The IEC 61010 safety standard defines four overvoltage categories (CAT I to IV) based on the magnitude of danger from transient impulses.
Measurement rate: 2 times per second nominal. Auto power off: Meter automatically shuts down after approx. 30 minutes of inactivity. Operating environment: -10 oC to 50 oC (14 oF to 122 oF) at < 70 % relative humidity. Storage temperature: -30 oC to 60 oC (-4 oF to 140 oF) at < 80 % relative humidity.
DC Voltage (Auto-ranging) Range Resolution 400.0mV 0.1mV 4.000V 1mV 40.00V 10mV 400.0V 100mV 1000V 1V Accuracy +0.5% of rdg + 2 digits +0.8% of rdg + 2 digits Input Impedance: 7.8MΩ. Maximum Input: 1000V dc or 1000V ac rms. AC Voltage (Auto-ranging) Range Resolution 400.0mV 0.1mV 4.000V 1mV 40.00V 10mV 400.0V 100mV 1000V 1V Accuracy +0.8%of rdg + 3 digits +1.2%of rdg + 5 digits Input Impedance: 7.8MΩ. AC Response: 50 Hz 60Hz Maximum Input: 1000V dc or 1000V ac rms.
Range Resolution 400.0uA 0.1uA 4000uA 1uA 40.00mA 10uA 400.0mA 100uA 10A 10mA Accuracy +1.2% of rdg + 3 digits +2.5% of rdg + 3 digits Overload Protection: 0.5A / 1000V and 10A / 1000V Fuse. Maximum Input: 400uA dc on uA range 400mA dc on mA range 10A dc on 10A range. AC Current (Auto-ranging) Range Resolution 400.0uA 0.1uA 4000uA 1uA 40.00mA 10uA 400.0mA 100uA 10A 10mA Accuracy +1.5% of rdg + 5 digits +3.0% of rdg + 5 digits Overload Protection: 0.
Resistance [Ω] (Auto-ranging) Range Resolution Accuracy 400.0Ω 0.1Ω +0.8% of rdg + 5 digits 4.000kΩ 1Ω 40.00kΩ 10Ω 400.0kΩ 100Ω 4.000MΩ 1kΩ 40.00MΩ 10kΩ +0.8% of rdg + 2 digits +2.5% of rdg +8digits Input Protection: 1000V dc or 1000V ac rms. Capacitance (Auto-ranging) Range Resolution Accuracy 4.000nF 1pF +5.0% of rdg+20 dgts 40.00nF 10pF +5.0% of rdg + 7 dgts 400.0nF 0.1nF 4.000uF 1nF 40.00uF 10nF 400.0uF 0.1uF 4.000mF 0.001mF 40.00mF 10.00mF +3.
Frequency (Auto-ranging) Range Resolution 4.000kHz 1Hz 40.00kHz 10Hz 400.0kHz 100Hz 40.00MHz 1kHz Accuracy +1.2% of rdg + 3 dgts +1.5% of rdg + 4 dgts ≤1MHz ; Sensitivity: >0.5V RMS while Sensitivity: >3V RMS while >1MHz ; Input Protection: 1000V dc or 1000V ac rms. Temperature Range Resolution Accuracy -20oC~+760oC -4 oF~+1400 oF 1 oC 1oF +3% of rdg +5dgts +3% of rdg +8dgts Sensor: Type K Thermocouple Overload protection: 1000V dc or ac rms..
Overload protection: 1000V dc or ac rms. Audible continuity Audible threshold: Less than35Ω Test current MAX. 1.5mA Overload protection: 1000V dc or ac rms. Accessories Included accessories Standard Red/Black lead set with test probes BATTERY and FUSE replacement WARNING: To avoid electric shock, disconnect the test leads from any source of voltage before removing the battery door. 1.
WARNING: To avoid electric shock, do not operate your meter with the battery cover removed. BATTERY INSTALLATION WARNING: To avoid electric shock, disconnect the test leads from any source of voltage before removing the battery cover. Do not operate the instrument with the battery cover removed 1. Disconnect the test leads from the meter. 2. Open the battery cover by loosening the screw using a Phillips head screwdriver. 3. Insert the battery into battery holder, observing the correct polarity. 4.
REPLACING THE FUSES WARNING: To avoid electric shock, disconnect the test leads from any source of voltage before removing the fuse /battery cover. 1. Disconnect the test leads from the meter and any item under test. 2. Open the fuse door by loosening the screw on the door using a Phillips head screwdriver. 3. Remove the old fuse from its holder by gently pulling it out. 4. Install the new fuse into the holder. 5. Always use a fuse of the proper size and value (0.
