Contents Introduction .................1 Verifying Package Contents ..........1 Options (sold separately) ..........2 Safety Notes ................4 Usage Notes ................8 Overview Overview and Features .........15 Parts Names and Functions ......16 Display ............21 Preparation for Measurements Measurement Workfl ow ........23 Inserting/Replacing Batteries ......24 Using Test Leads ...........26 Performing Measurements Inspection Before Use ........29 Measuring Voltage.........33...
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Contents 3.10 Measuring Temperatures (DT4212)....43 Using Instrument Conveniently Selecting the Measurement Range ....45 Measuring with the auto range ......... 45 Measuring with the manual range ......45 Retaining the Measured Value .....46 Retaining the measured value (HOLD) ..... 46 Checking the Relative Value/Performing Zero Adjustment ..........47...
If damage is evident, or if it fails to operate according to the specifi cations, contact your authorized Hioki distributor or reseller. Check the package contents as follows. DT4211 (Average value measurement model) or DT4212 (True RMS measurement model) L9206 Test Lead (p.
Options (sold separately) Options (sold separately) The following options are available for the instrument. Contact your authorized Hioki distributor or reseller when ordering. Connecting cables *1: CAT IV 600 V/CAT III 1000 V/CAT II 1000 V *2: CAT IV 600 V/CAT III 1000 V...
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Options (sold separately) Temperature measurement (Only the DT4212 (True RMS measurement model)) DT4910 Thermocouples (K) (p. 43) • Temperature measuring junction: Exposed type (welding) • Sensor length: Approx. 800 mm • Operating temperature: -40°C to 260°C (temperature measuring part), -15°C to 55°C (connector) •...
Safety Notes Safety Notes This instrument is designed to conform to IEC 61010 Safety Standards, and has been thoroughly tested for safety prior to shipment. However, using the instrument in a way not described in this manual may negate the provided safety features. Before using the instrument, be certain to carefully read the following safety notes.
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Safety Notes Notation In this manual, the risk seriousness and the hazard levels are classifi ed as follows. Indicates an imminently hazardous situation that will DANGER result in death or serious injury to the operator. Indicates a potentially hazardous situation that may WARNING result in death or serious injury to the operator.
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Safety Notes Symbols affi xed to the instrument Indicates cautions and hazards. When the symbol is printed on the instrument, refer to a corresponding topic in the Instruction Manual. Indicates that dangerous voltage may be present at this terminal. Indicates a double-insulated device. Indicates a fuse.
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Safety Notes Measurement categories To ensure safe operation of measuring instruments, IEC 61010 establishes safety standards for various electrical environments, categorized as CAT II to CAT IV, and called measurement categories. DANGER • Using a measuring instrument in an environment designated with a higher-numbered category than that for which the instrument is rated could result in a severe accident, and must be carefully avoided.
• Before using the instrument the fi rst time, verify that it operates normally to ensure that no damage occurred during storage or shipping. If you fi nd any damage, contact your authorized Hioki distributor or reseller.
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Usage Notes Installation Installing the instrument in inappropriate locations may cause a malfunction of instrument or may give rise to an accident. Avoid the following locations. For details on the operating temperature and humidity, see the specifi cations. (p. 51) CAUTION •...
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For the test leads supplied with the instrument or the options to be connected to the instrument, see the following information. Accessories and options Reference Test lead “2.3 Using Test Leads” (p. 26) Thermocouples (K) “3.10 Measuring Temperatures (DT4212)” (p. 43)
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Usage Notes Handling the strap DANGER Those with medical electronics such as pacemakers should not use the Z5004 Magnetic Strap. Nor should such persons approach the Z5004. It is extremely dangerous. The electronics may not operate properly and the life of the operator may be put at great risk. CAUTION •...
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Usage Notes Precautions during measurement WARNING If the instrument is used in locations where the rating indicated on the instrument or probes is exceeded, the instrument may be damaged resulting in personal injury. Do not use the instrument in such locations. See “Measurement categories”...
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Precautions during shipment Observe the following during shipment. Hioki cannot be responsible for damage that occurs during shipment. CAUTION • During shipment of the instrument, handle it carefully so that it is not damaged due to a vibration or shock.
Overview 1.1 Overview and Features This instrument is a multi-function digital multimeter that performs measurement functions for items such as voltage, current, resistance, and capacity. Main features and functions • Large display on which the measured values can be read easily •...
Parts Names and Functions 1.2 Parts Names and Functions Front Some indications are different between the DT4211 (Average value measurement model) and DT4212 (True RMS measurement model) Display (p. 21) Operation keys (p. 17) Rotary switch (p. 18) Measurement terminals (p.
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Parts Names and Functions Operation keys Backlight key Turns on/off the backlight. (p. 49) Manually sets/cancels the hold function for the displayed HOLD value. ( lights up/goes off.) (p. 46) Switches the frequency (p. 39) and duty ratio (p. 40) Hz/% display.
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Parts Names and Functions Rotary switches and measurement descriptions 3 3 4 4 5 5 3 3 4 4 DT4211 DT4212 (Average value (True RMS measurement model) measurement model) Function DT4211 DT4212 AC voltage and frequency √ √ measurement √...
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Parts Names and Functions Measurement terminals DT4211 (Average value measurement model) DT4212 (True RMS measurement model) 2 2 3 3 Current measurement terminal. Hereafter referred to as “A terminal (μA terminal, mA terminal)”. The red test lead is connected. Commonly used for each measurement.
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Parts Names and Functions Rear Strap hole The optional Z5004 Magnetic Strap can be attached. Test lead holder The test lead can be held. Stand The instrument can be set on the stand. Battery cover When replacing the batteries (p. 24) or fuse (p. 67), remove the Serial number label cover.
Display 1.3 Display 5 6 7 Auto range (p. 45) DC, AC Battery warning indicator Lights up when the battery voltage falls below the voltage at which accuracy is guaranteed (2.4 V ± 0.15 V). Retention of the measured value. (p. 46) Continuity check (p.
Preparation for Measurements 2.1 Measurement Workfl ow Before using the instrument, be sure to read “Usage Notes” (p. 8). Installation and connection Insert the batteries. (p. 24) As necessary, have other optional items available and ready. Perform the startup check. (p. 29) Measurement Turn on the power and select the measurement function.
Inserting/Replacing Batteries 2.2 Inserting/Replacing Batteries Before using the instrument for the fi rst time, insert 2 R6P manganese batteries or LR6 alkaline batteries. Before measurements, check that the battery level is suffi cient. When the battery charge is low, replace the batteries. WARNING To avoid electric shock, disconnect the test leads from the object to be measured before replacing the batteries.
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Inserting/Replacing Batteries • lights up when the batteries are exhausted. The accuracy is not guaranteed. Replace the battery immediately. • After use, be sure to turn off the instrument. • Handle and dispose of batteries in accordance with local regulations. Have the following items available and ready.
Using Test Leads 2.3 Using Test Leads The L9206 Test Leads supplied with the instrument are used for measurements. Depending on measurement locations, use our optional measurement cables. For details on the optional items, see “Options (sold separately)” (p. 2). DANGER To avoid electric shock, do not short circuit the line on which voltage is applied at the tip of the test lead.
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Using Test Leads L9206 Test Lead Sleeves Black Barriers Cables Metal pins Plugs Metal pin Connect to the object to be measured. 4 mm or less (sleeve attached) 19 mm or less (sleeve removed) Diameter approx. 2 mm Sleeve Attach to the metal pins to prevent short circuit accidents.
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Using Test Leads Removing and attaching the sleeves Removing the sleeves Attaching the sleeves Gently hold the bottom of the Insert the metal pins of the test sleeves and pull the sleeves off. leads into the holes of the sleeves, Safely store the removed sleeves and fi...
Before using the instrument the fi rst time, verify that it operates normally to ensure that no damage occurred during storage or shipping. If you fi nd any damage, contact your authorized Hioki distributor or reseller. Appearance check of the instrument and test leads...
Inspection Before Use Operation check This section introduces some of the operation checks. Periodical calibration is necessary in order to ensure that this instrument operates according to its specifi cations. Check that the test leads are not broken. Check method Action Regarding the continuity check, Normal:...
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Inspection Before Use Measure samples (such as battery, commercial power supply, and resistor) of which values have already been known, and check that the appropriate values appear. Check method Action Example: Normal: Perform the AC voltage An already-known value appears. measurement to measure the (In this example, the commercial commercial power supply, and then...
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Inspection Before Use Check that the fuse is not broken. Check method Action 1. Remove the fuse from the Normal: instrument. (p. 67) Fuse rating Resistance 2. Reattach the battery cover. 3. In the resistance measurement, Ω 630 mA Approx. 1.0 check the resistance of the Ω...
To change the range arbitrarily, use the manual range. (p. 45) Measuring AC voltage The AC voltage is measured. The measured value is an average rectifying RMS indication (DT4211) or true RMS indication (DT4212). (p. Appx.1) When the Hz/% key is pressed, the Black frequency and duty ratio can be measured.
Measuring Resistance 3.3 Measuring Resistance Resistance is measured. WARNING Before measuring, be sure to turn off the power to the measurement circuit. Otherwise, electric shock may occur or the instrument may be damaged. 1 1 1 Black The open terminal voltage is approx. 0.5 V or less. The measurement current (DC) varies depending on the range.
Measuring Diode 3.4 Measuring Diode The forward voltage of the diode is measured. If the forward voltage is within the range from 0 V to 1 V, the forward voltage is displayed. WARNING Before measuring, be sure to turn off the power to the measurement circuit.
Checking Continuity 3.5 Checking Continuity The input short circuit is detected and informed via a buzzer. WARNING Before measuring, be sure to turn off the power to the measurement circuit. Otherwise, electric shock may occur or the instrument may be damaged. A buzzer sounds during continuity (short circuit detection), and the resistance is displayed.
Measuring Electrostatic Capacities 3.6 Measuring Electrostatic Capacities The capacity of the capacitor is measured. WARNING Before measuring, be sure to turn off the power to the measurement circuit. Otherwise, electric shock may occur or the instrument may be damaged. Do not measure the capacitor which has been charged.
Measuring Frequencies 3.7 Measuring Frequencies The frequency of the measured signal (square wave) is also measured. The frequency display is auto-ranging. Black When measuring frequencies of AC voltage and AC current For the AC voltage measurement, use the ACV setting, and for the AC current measurement, use the ACμA, ACmA, or ACA setting.
Measuring Duty Ratio 3.8 Measuring Duty Ratio The duty ratio (or duty factor) indicates the ratio of the pulse width and pulse repetition frequency. The instrument displays the ratio as a percentage (%). Duty ratio for the plus slope (D+): D+ = tw+/T ×100 (%) The duty ratio for the pulse is Hz/% measured.
Measuring Current 3.9 Measuring Current DC/AC is measured. DC and AC are switched with the SHIFT key. DANGER • Do not input any voltage to the current measurement terminals. Doing so may result in short circuit accidents. • To avoid electrical accidents, turn off the power to the circuit before measuring and then connect the test leads.
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Measuring Current Measuring with the μA range Control board Black Example: Measuring the current of the burner fl ame (μA) The measured current value of the burner fl ame varies with the input impedance of the instrument. Ω The μA input impedance of this instrument is approx. 100 Measuring with the A range SHIFT Load...
Measuring Temperatures (DT4212) 3.10 Measuring Temperatures (DT4212) Using our optional DT4910 Thermocouples (K), temperatures can be measured. CAUTION To avoid damage to the instrument, do not input any voltage or supply current to the thermocouple. Checking the temperature change It can be checked in the relative value display.
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Measuring Temperatures (DT4212) When measuring temperatures with the thermocouple applied to the surface of the measurement object Clean the surface so that the thermocouple can make contact with the object securely. If temperature is not measured after the thermocouple is attached The instrument or thermocouple may be malfunctioning.
Using Instrument Conveniently 4.1 Selecting the Measurement Range Auto or Manual range can be selected. • Auto range Sets the optimum range automatically in accordance with the actual measurement. • Manual range Sets the specifi c range manually. Measuring with the auto range [RANGE: AUTO] lights up.
Retaining the Measured Value 4.2 Retaining the Measured Value When HOLD is pressed, the measured value is retained. (HOLD lights up.) Retaining the measured value (HOLD) To retain the measured value, press HOLD key. (HOLD lights up and the measurement value is retained.) To cancel the hold state, press it again.
• When the relative function is performed, the auto range is canceled. (However, this excludes the capacity measurement function.) • Do not input values exceeding 4000 counts for the DC voltage, DC current, and temperature measurement (only the DT4212).
Checking the Relative Value/Performing Zero Adjustment Performing zero adjustment When performing zero adjustment, the condition of the test leads varies depending on the measurement function. Perform zero adjustment, referring to the table below. Ω Measurement function Condition of the test leads Short circuit Open Example 1: Resistance measurement...
Turning On the Backlight 4.4 Turning On the Backlight The backlight can be turned on/off by pressing the backlight key. The backlight automatically turns off if the instrument is not operated for approx. 80 seconds. 4.5 Using the Auto Power Save (APS) The auto power save function saves on battery consumption.
Specifi cations 5.1 General Specifi cations Power supply R6P manganese battery × 2 or LR6 alkaline battery × 2 Battery indicator lights up when 2.4 V ± 0.15 V or less warning voltage Dimensions Approx. 91.6 W × 180.6H × 57.1 D mm (3.61″ W × 7.11″...
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General Specifi cations Dustproof and IP40 (EN60529) waterproof Product warranty 3 years (excluding the measurement accuracy) period Accessories • L9206 Test Lead • Holster (attached to the instrument, with a test lead holder) • Instruction Manual • R6P manganese battery × 2 (not installed in the instrument) Options See: “Options (sold separately)”...
Electrical Characteristics 5.2 Electrical Characteristics Noise • DCV: -45 dB or more (50 Hz/60 Hz) suppression NMRR Ω Noise • DCV: -100 dB or more (DC/50 Hz/60 Hz, 1k suppression unbalance) Ω • ACV: -60 dB or more (DC/50 Hz/60 Hz, 1k CMRR unbalance) (However, -45 dB or more for the 1000 V range)
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Continuous AA manganese batteries, DCV, backlight off operating time DT4211 (Average value measurement model): Approx. 300 hours DT4212 (True RMS measurement model): Approx. 240 hours AA alkaline batteries, DCV, backlight off DT4211 (Average value measurement model): Approx. 800 hours DT4212 (True RMS measurement model):...
V • Hz (energized for 1 minute) Transient overvoltage: 6000 V • Crest factor (Only the DT4212 (True RMS measurement model)): The crest factor is 2 up to 2800 counts and reduces linearly to 1.5 at 4000 counts. *1: The accuracy is specifi ed in 1% or more of the range.
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Accuracy Table DC voltage Range Accuracy Input impedance Ω 400.0 mV Over 100M ±0.5% rdg. ±3 dgt. Ω 4.000 V ±2% 40.00 V Ω 400.0 V ±0.5% rdg. ±3 dgt. 1000 V • Overload protection: 1100 V DC/1100 V AC or 10 V •...
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Accuracy Table Diode Measurement Open circuit Range Accuracy current voltage 3.0 V DC or less Voltage drop 1.000 V ±10.0% rdg. 0.5 mA due to battery consumption • Overload protection: 1000 V DC/1000 V AC or 10 V • Hz (energized for 1 minute) Current under short circuit: 0.7 mA or less Current under overload: Steady state 15 mA or less, transient state 0.8 A or...
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Accuracy Table Electrostatic capacity Range Accuracy Charging current Open circuit voltage 50.00 nF ±1.5% rdg. ±15 dgt. 500.0 nF ±2.0% rdg. ±5 dgt. 5.000 μF Approx. 30 μA 1.5 V DC or less 50.00 μF ±5.0% rdg. ±5 dgt. 100.0 μF •...
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4000 μA • Overload protection: 630 mA/1000 V fuse, breaking capacity 50 kA • Crest factor (only the DT4212 (True RMS measurement model)): The crest factor is 2 up to 2800 counts and reduces linearly to 1.5 at 4000 counts.
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400.0 mA • Overload protection: 630 mA/1000 V fuse, breaking capacity 50 kA • Crest factor (only the DT4212 (True RMS measurement model)): The crest factor is 2 up to 2800 counts and reduces linearly to 1.5 at 4000 counts.
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Accuracy Table Temperature Thermocouple type Range Measurement range Accuracy 400.0°C -55.0°C to 0.0°C ±2.0% rdg. ±2°C (-67°F to 32°F) (±(T-32)×0.02±3.6°F) 0.0°C to 50.0°C ±2°C (32°F to 122°F) (±3.6°F) 50.0°C to 400.0°C ±2.0% rdg. ±1°C (122°F to 752°F) (±(T-32)×0.02±1.8°F) 700°C 400°C to 700°C ±2.0% rdg.
Maintenance and Service 6.1 Repair, Inspection, and Cleaning DANGER Customers are not allowed to modify, disassemble, or repair the instrument. Doing so may cause fi re, electric shock, or injury. Calibrations IMPORTANT Periodic calibration is necessary in order to ensure that the instrument provides correct measurement results of the specifi...
• When a malfunction of the instrument is suspected, check the information in “Before sending the instrument for repair” and then, if necessary, contact your authorized Hioki distributor or reseller. • When sending the instrument for repair, remove the batteries and pack it carefully to prevent damage during transportation.
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Troubleshooting Symptom Check and/or remedy The measurement If the measured current value does not appear, value does not check that the fuse is not blown. appear. Check method: “Check that the fuse is not broken.” Even after the (p. 32) measurement, 0 If the fuse is blown, replace it with the specifi...
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Troubleshooting Question Solution Would like to replace The fuse can be purchased via authorized Hioki the fuse. distributor or reseller. Would like to know how to obtain the fuse. Can rechargeable Rechargeable batteries can be used. However, batteries be used? the discharge characteristic of these batteries is different from that of alkaline batteries.
Breaking capacity: 30 kA Size: 10 mm × 38 mm The fuses can be purchased via authorized Hioki distributor or reseller. When removing the fuse, do not apply excessive force on the fuse holder. If the fuse holder is deformed, the connection becomes...
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Replacing Fuses CAUTION When replacing the fuse, do not allow foreign matter to enter the instrument. It may cause a malfunction. Do not remove the fuse using the tip of test lead L9206 supplied with the instrument. The tip of the test lead may bend. Remove the test leads from the instrument.
2 methods. The DT4211 (Average value measurement model) uses the Average method, and the DT4212 (True RMS measurement model) uses the True RMS method. In the true RMS method, the high frequency component is also included and displayed.
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RMS and Average Measurement example True RMS Average rectifying 100 V sine wave 100 V 100 V 100 V square wave 100 V 111 V V(t) V(t) Vavg Vrms Vm=Vavg=Vrms Sine wave Square wave Vm: Maximum value, Vavg: Average value, Vrms: RMS, T: Time period Appx.
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选件 (另售) 选件 (另售) 本仪表有以下一些选件可用,订货时,请联系代理店或距您最近的营 业所。 连接电缆 *1: CAT IV 600 V/CAT III 1000 V/CAT II 1000 V *2: CAT IV 600 V/CAT III 1000 V *3: CAT III 1000 V *5:CAT III 300 V/CAT II 600 V *4: CAT III 600 V *6:AC33 V /DC70 V L4933 接触针...
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