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PC720M DIGITAL MULTIMETER INSTRUCTION MANUAL...
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Auto Power Saving [7] AFTER-SALE SERVICE Low Battery Indication Warranty and Provision Measuring Function Selection Repair Range Hold SANWA web site [8] SPECIFICATIONS Data Hold Beeper Control General Specifications PC (Personal Computer) Interface Measuring Range and Accuracy Data Logging (Recording)
1-2 Warning Instructions for Safe Use [1] SAFETY PRECAUTIONS WARNING *Before use, read the following safety precautions. 1. Do not use the instrument if the meter or test leads look damaged. This instruction manual explains how to use your digital multimeter 2.
1-3 Overload Protection [2] APPLICATIONS AND FEATURES 2-1 Applications Measuring Function Max. Rated Input Overload Protection Terminal This instrument is a portable digital multimeter designed to 「 」 measure light electric circuits. The instrument offers not only 1000V dc/ac 1050V rms, 1450V peak measurements for small communication equipments, home 「...
[3] Parts Identification How to detach the light shielding magnet cap Light shielding magnet cap 3-1 Multimeter and Test Leads Light shielding magnet cap Optical communication unit connector LCD display ⇒ Range hold button (Temperature function selector) Select button Attached (Backlight button) Data logging button Turn the light shielding magnet cap counterclockwise to detach.
3-2 Display [4] DESCRIPTION OF FUNCTIONS ⑤ ⑥ ⑮ ⑯ ⑫ ⑩ ⑪ ② 4-1 Power Switch/Function Selector Turn the switch to turn on/off the power and select a measuring ⑦ function. All segments of the LCD display will be turned on for 2 ⑧...
4-2-2 How to disable the Auto Power Saving 「Temp」 ・ :[ C ] ⇔ [ F ] ( C:℃ , F: Press the SELECT button while turning the meter power on. 「 」 ・ :[ ] ⇔ [ Release the SELECT button after is turned off.
4-7 Beeper Control 4-9 Data Logging (Recording) Press the RANGE HOLD button while turning the meter power on The data logging feature to store up to 87,328 readings (single to disable the beeper. Release the RANGE HOLD button after display) or 43,664 readings (dual display) The instrument employs nonvolatile memory.
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4-9-2 Start/Stop Data Logging ① ② / ③ • The Meter supports multi-session data-logging. Multiple functions can be logged one-at-a-time into the meter's free memory up to 999 separate session-pages without erasing the formerly logged one(s). • Press button for 1 sec. or more to start the data-logging mode.
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New logging starts New logging starts 4-9-3 Pause/Continue Data Logging w i t h o u t e r a s i n g a f t e r e r a s i n g • Press (PAUS/CONT/STOP) button to pause/continue/ stop logging.
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4-9-4 Recall logged data ▲ and ▼ buttons simultaneously to enter the • Press the Recall mode. The last session-page number shows up for 0.5 second before displaying the last logged data item. indicators turn on. • Press the ▲ or ▼ button to review the logged data one-at- a-time in sequence.
4-11 Crest capture mode (Sampling time: 1ms) Press the CAPTURE button to activate the crest (Instantaneous Peak-Hold) mode to capture voltage or current signal duration which is longer than 1ms. and MAX indicators turn on. The meter beeps when new MAX (maximum) or MIN (minimum) reading is updated.
4-15 Terms [5] Measuring procedures Analog bar graph The analog bar graph provides a visual indication of 5-1 Pre-operational Check measurement like a traditional analog meter needle. WARNING True RMS 1. Do not use the instrument if the meter or test leads look True RMS is a term which identifies a DMM that responds accurately to the effective RMS value regardless of the damaged.
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「 」 START (Max. rated input voltage: 1,000V dc/ac, Initial impedance: 3 kΩ) • Automatic measurement for Ω ・ V under Low Impedance WARNING Damaged Auto Ω ・ V mode input impedance increases abruptly from initial 3kΩ Meter/Test leads damaged? to a few hundred kΩ’s on high voltage hard signals. “LoZ” displays on the LCD to remind the users of being in such low impedance mode. Looks OK Peak initial load current, while probing 1000V ac for example, can be up to 471mA (1000V x 1.414 / 3kΩ), decreasing abruptly to approx.
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Auto Ω ・ V Auto Ω ・ V 1) Measuring range (Automatic function selection) • LoZ : 1.5 to 999.9Vdc, -1.0V to -999.9Vdc • LoZ : 3Vac to 999.9Vac (50/60Hz) • LoZΩ: 0.0Ω to 60.00MΩ 2) Measuring procedure ① Connect the red plug of the test lead to the AutoΩ ・ V measuring terminal and the black one to the COM terminal.
「 」 Hz / / Hz (Max. rated input voltage: 1,000V dc/ac) • AC Voltage ( )/Frequency (Hz) Simultaneous Measurement WARNING 1. Do not apply any input signal exceeding the max. rated input voltage. 2. Do not switch the function selector while measuring. 3.
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「 」 Frequency measurement (Hz) (Max. rated input voltage: 1,000V dc/ac) Range Frequency range Input sensitivity (Sine wave) ・ DC Voltage( ) measurement 9.999V 2.5V ・ DC Voltage( )/AC Voltage( ) simultaneous measurement 99.99V 15.00Hz to 10.00kHz ・ DC+AC voltage( )/AC Voltage( ) simultaneous 999.9V 100V measurement...
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Note: ・The display style of [ / ] or [ / ] does not show the bar graph. ― 31 ― ― 32 ―...
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「 」 (Max. rated input voltage: 10V dc/ac) 3) Measuring procedure ① Connect the red plug of the test lead to the VHz measuring ・ DC voltage (m ) measurement terminal and the black one to the COM terminal. ② Set the function selector to ・DC Voltage (m )/AC Voltage(m ) simultaneous measurement ③...
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m / m Note: ・ The display style of [m /m ], [m ], [ or [ D%] does not show the bar graph. ― 35 ― ― 36 ―...
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「 」 5-6 (Max. rated input voltage: 600mV dc/ac) / Hz Hz / m ・ AC Voltage (m )/Frequency (Hz) Simultaneous Measurement WARNING 1. Do not apply any input signal exceeding the max. rated input voltage. 2. Do not switch the function selector while measuring. 3.
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「 」 5-7 (Do not apply any voltage or current.) 3) Measuring procedure ① Connect the red plug of the test lead to measuring terminal and ・ Resistance (Ω) measurement the black one to the COM terminal. ② Set the function selector to ・...
「 」 5-8 (Max. rated input voltage: 50mV dc) ・ Temperature measurement ( ℃ ) or ( F ) ( For K-type thermocouple) WARNING 1. Pay attention in order to avoid risk of burn depending on the object temperature or measuring environment. 2.
「 」 5-9 (Do not apply any voltage or current.) (T1 - T2) / T2 ・ Capacitance ( ) measurement ・ Diode ( ) test WARNING 1. Do not apply any voltage or current to the measuring terminals. 2. Measuring live circuit may damage the meter. 5-9-1 Capacitance ( ) measurement CAUTION...
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5-9-2 Diode ( ) test What to measure (Diode test): Judging the diode (Good or defective) Measuring procedure ① Connect the red plug of the test lead to measuring terminal and the black one to the COM terminal. ② Set the function selector to , then press the SELECT button to select the diode test.
「 」 「 」 5-10 , ・ DC current (m ,μ , ) measurement ・ AC current (m , μ )/Frequency(Hz) simultaneous measurement ・ DC current (m μ )/AC current (m μ simultaneous measurement ・ DC+AC current (m μ )/AC current (m μ...
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Note: 5-10-1 Current (mA/μA) measurement Measuring Frequency (Hz) Frequency range (m , m , m , μ , μ , μ Max. rated input current 600mA dc/ac) Range Input sensitivity(Sine wave) 600.0μA 60μA 1) What to measure 6000μA 600μA ・ m , μ (DC current): DC circuit current 15.00Hz ~...
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m / Hz / Hz 5-11 Measurements with Optional Products WARNING 1. Do not apply any input exceeding max. rated input for the separately available accessories. 2. 2. Do not switch the function selector while measuring. CAUTION To make measurements of consumption current for home appliances using a current probe, use a line separator as shown in the drawing below.
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5-11-1 Clamp probe: CL-20D 5-11-2 Clamp probe: CL-22AD (Max. measurable current 200A ac) (Max. measurable current 200A dc/ac) 1) What to measure 1) What to measure ACA: 50/60 Hz sine wave current such as consumption current 50/60 Hz sine wave current such as consumption current of of home appliances, current of power supply equipments, home appliances, current of power supply equipments, and etc.
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Current of automotive electric circuits, consumption current of Note: DC equipments, etc. To make temperature measurement, connect the temperature probe to the PC720M connected to the PC on which sanwa's 2) Measuring ranges software PC Link7 is installed and running. 30A and 300A 2) Measuring range -50 ~...
[6] MAINTENANCE 6-3 Battery and Fuse Replacement WARNING WARNING 1. The followings are important to safety. Read this manual 1. Do not open the rear case with live measuring terminals to avoid throughly to maintain the instrument. electric shock. Also, make sure the meter power is OFF, before 2.
Fuse 0.63A/500V This warranty policy is valid within the country of purchase only, φ6.3×32mm Breaking capacity : 50kA and applied only to the product purchased from Sanwa authorized Part number : F1198 Screw agent or distributor. for the battery door Fuse 12.5A/500V...
[8] SPECIFICATIONS provider, listed in our website, in your country with above information. An instrument sent to Sanwa / agent / distributor 8-1 General Specifications without above information will be returned to the customer. Operation Note: Delta-sigma modulation method 1) Prior to requesting repair, please check the following:...
8-2 Measuring Range and Accuracy AC sensing True RMS method Accuracy: ±(% rdg + dgt) Auto Power rdg: reading, dgt: least significant digit Approx. 30 minutes after the last operation Saving Temperature: 23 ℃ ±5 ℃ , Humidity: <75% R.H. IEC61010-1:2001 True RMS voltage and current accuracies are specified from 10% IEC61010-031:2008...
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AC Voltage ACV and DC+AC Voltage DC+AC V DC Voltage/AC Voltage, DC+AC Voltage/AC Voltage for dual display Range Accuracy AC voltage/ Frequency for dual display 50Hz ~ 60Hz Range Accuracy 60.00mV, 600.0mV ± (0.7% rdg + 6dgt) 50Hz ~ 60Hz 9.999V, 99.99V, 999.9 60.00mV, 600.0mV, 9.999V, 40Hz ~...
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Frequency (Hz) Capacitance Measuring ranges Input sensitivity* Frequency ranges Range Accuracy* 60.00mV 40mV 60.00nF, 600.0nF*** ±(0.8% rdg + 3dgt) 15.00Hz to 50.00kHz 600.0mV 60mV 6.000μF ±(1.0% rdg + 3dgt) 9.999V 2.5V 60.00μF ±(2.0% rdg + 3dgt) 99.99V 15.00Hz to 10.00kHz 600.0μF ** ±(3.5% rdg + 5dgt)...
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< MEMO > Max/Min (with capture mode) Accuracy: Specified % rdg + 250dgt) in each function ±( Sampling time: Approx. 1ms Max/Min (with recording mode) Accuracy: ±(Specified % rdg + 10dgt) in each function (for changes > 100ms in duration in voltage or current measurement) How to calculate an accuracy Example) DC voltage measurement (DC mV) True value: 100.0 [mV]...
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