Twilight DT4200 Instruction Manual

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DT4221

DT4222

DT4223

DT4224

DIGITAL MULTIMETER

Aug. 2016 Revised edition 2

DT4221A981-02 16-08H

Instruction Manual

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Page 1 DT4221 DT4222 Instruction Manual DT4223 DT4224 DIGITAL MULTIMETER Aug. 2016 Revised edition 2 DT4221A981-02 16-08H...
Page 3: Table Of Contents
Contents Introduction ..............1 Verifying Package Contents ........1 Options (sold separately) ..........2 Safety Notes ..............3 Usage Notes ..............8 Overview Overview and Features ......11 Parts Names and Functions ....13 Display ............. 18 Voltage Input Protected (DT4223, DT4224) ........
Page 4 Contents Checking Continuity ....... 36 Measuring Diode (DT4222, DT4224) ..37 Measuring Resistance (DT4222, DT4223, DT4224) ..... 38 Measuring Capacitance (DT4222, DT4224) ........39 Checking the Electric Charge (DT4221, DT4223) ........40 Using Instrument Conveniently 41 Selecting the Measurement Range ..41 Measuring with the auto range ......41 Measuring with the manual range .......42 Retaining the Measured Value ....
Page 5 Contents Maintenance and Service Repair, Inspection, and Cleaning ... 65 Troubleshooting ........66 Error Display ..........68 Appendix Appx.1 Appx. 1 RMS and Average ....... Appx.1...
Page 6 Contents...
Page 7: Introduction
Introduction Introduction Thank you for purchasing the Hioki DT4221, DT4222, DT4223, DT4224 Digital Multimeter. To obtain maximum performance from the product, please read this manual ﬁ rst, and keep it handy for future reference. Verifying Package Contents When you receive the instrument, inspect it carefully to ensure that no damage occurred during shipping.
Page 8: Options (Sold Separately)
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 (p. 24) L4933 Contact Pin Set 33 V AC/70 V DC DT4911 L4934 Test Lead Small Alligator Clip Set CAT III 300 V/CAT II 600 V C0200 Carrying Case...
Page 9: Safety Notes
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.
Page 10 Safety Notes Notation In this manual, the risk seriousness and the hazard levels are classiﬁ ed as follows. Indicates an imminently hazardous situation DANGER that will result in death or serious injury to the operator. Indicates a potentially hazardous situation WARNING that may result in death or serious injury to the operator.
Page 11 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 grounding terminal.
Page 12 Safety Notes Accuracy We deﬁ ne measurement tolerances in terms of rdg. (reading) and dgt. (digit) values, with the following meanings: (Reading or displayed value) rdg. The value currently being measured and indicated on the measuring instrument. (Resolution) The smallest displayable unit on a digital measuring dgt.
Page 13 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...
Page 14: Usage Notes
Usage Notes Usage Notes Follow these precautions to ensure safe operation and to obtain the full beneﬁ ts of the various functions. DANGER If the test lead or the instrument is damaged, there is a risk of electric shock. Before using the instrument, perform the following inspection.
Page 15 Usage Notes Handling the cables WARNING To prevent electric shock, when measuring the voltage of a power line use a test lead that satisﬁ es the following criteria: • Conforms to safety standards IEC61010 or EN61010 • Of measurement category III or IV •...
Page 16 Usage Notes CAUTION • Do not input voltage exceeding the speciﬁ ed measurement range. Doing so may damage the instrument. • During the continuity check, diode test, or measurement of resistance or capacitance, measurement signals are generated in the terminals of the instrument. Depending on the target for measurement, the measurement signal may cause damage.
Page 17: Overview
Overview 1.1 Overview and Features This measuring instrument is a multi-function digital multimeter that ensures both safety and durability. Main features and functions • Speedy display of the RMS measured value • Environmental performance (can be used anywhere) (Operation temperature: DT4221, DT4222: −10 to 50°C DT4223, DT4224: −10 to 65°C) •...
Page 18 Overview and Features Problem ﬁ nding a suitable installation location? The strap with magnet allows the instrument to be hung conveniently. For various purposes Large, easily- viewable display The measurement test leads and end Backlighting to allow pins can be selected. users to read the measurement values in dark environments...
Page 19: Parts Names And Functions
Parts Names and Functions 1.2 Parts Names and Functions Front Some indications are different among the models. Display (p. 18) Operation keys (p. 14) Rotary switch (p. 16) DT4224 DT4221 DT4222 DT4223...
Page 20 Parts Names and Functions Operation keys DT4221, DT4222 Pressed down Power- Normal for at least 1 on option second (p. 52) Sets the manual Cancels the manual All LCDs range/switches range. light up and the range. the software version is RANGE:AUTO / RANGE:MANUAL displayed.
Page 21 Parts Names and Functions DT4223, DT4224 Pressed down Power- Normal for at least 1 on option second (p. 52) Sets the auto and Sets/cancels the All LCDs light up. manual range/ display of the The software switches the relative value version and range.
Page 22 Parts Names and Functions Rotary switches and measurement descriptions DT4221 DT4222, DT4224 DT4223 Function √ √ √ AC voltage measurement √ √ √ DC voltage measurement √ √ √ Frequency measurement √ − √ DC/AC voltage measurement (Automatic judgment) √ √...
Page 23 Parts Names and Functions Rear DT4224 Test lead holder The test lead can be held. 2 2 2 Strap hole The optional Z5004, Z5020 Magnetic Strap can be attached. (p. 27) Battery cover When replacing the battery (p. 22), remove the cover. (See p.
Page 24: Display
Display 1.3 Display For error displays, see “6.3 Error Display” (p. 6 8). AC/DC automatic The auto power save function judgment * is activated. When the input (p. 51) impedance is low Battery indicator for continuity/ (p. 19) resistance/ capacitance/ diode.* AC, DC Indication (example): In the...
Page 25: Voltage Input Protected (Dt4223, Dt4224)
Voltage Input Protected (DT4223, DT4224) 1.4 Voltage Input Protected (DT4223, DT4224) Erroneous voltage warning for continuity, resistance, capacitance, or diode range The red backlight ﬂ ashes to warn the user. Immediately move the test leads away from the measurement object. Grounding terminal Voltage input...
Page 26: Alarm Display And Battery Indicator
Alarm Display and Battery Indicator 1.5 Alarm Display and Battery Indicator When the measured value exceeds the maximum input range in each range Voltage measurement The measured value and [OVER] blinks. Corrective action: When the input exceeds the maximum rating, immediately move the test leads away from the measurement object.
Page 27: Preparation For Measurements
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 battery. (p. 22) As necessary, have other optional items available and ready. Perform the startup check. (p. 29) Measurement To ensure safe operation, To ensure safe operation,...
Page 28: Inserting/Replacing The Battery
Inserting/Replacing the Battery 2.2 Inserting/Replacing the Battery Before using the instrument, insert one LR03 alkaline battery. Before measurements, check that the battery level is sufﬁ cient. When the battery charge is low, replace the battery. Nickel-metal hydride batteries Nickel-metal hydride batteries can be used. However, the discharge characteristic of these batteries is different from that of alkaline batteries.
Page 29 Inserting/Replacing the Battery • The indicator appears when the battery charge diminishes. Replace the battery as soon as possible. The power may be turned off when the backlight lights up or a buzzer sounds. • After use, be sure to turn off the instrument. •...
Page 30: Using Test Leads
Inserting/Replacing the Battery WARNING To prevent instrument damage or electric shock, use only the screw (M3×7.5 mm) for securing the battery cover in place that are originally installed. If you have lost a screw or ﬁ nd that a screw is damaged, please contact your Hioki distributor for replacement.
Page 31 Using Test Leads DT4911 Test Lead (p. 8 ) Sleeves Barriers Plugs Cables Metal pins Metal pin Connect to the object to be measured. Approx. 3 mm (sleeve attached) Approx. 15 mm (sleeve removed) Sleeve Attach to the metal pins to prevent short circuit accidents. Barrier Represents the safe handling distance from the metal pins.
Page 32 Using Test Leads Connecting to the instrument CAUTION • When removing the test leads from the measurement terminals, hold the end of the plugs. • Do not pull the cables with excessive force, as they may be broken. Black When connecting the test leads to the instrument, push them as far as possible into the measurement terminals while holding the end of the plugs.
Page 33: Installation In Measurement Location
Installation in Measurement Location 2.4 Installation in Measurement Location Hanging the instrument with the strap Attach the optional Z5004, Z5020 Magnetic Strap to the instrument and attach the magnet to the wall surface (with metal plate afﬁ xed). DANGER Those with medical electronics such as pacemakers should not use the Z5004, Z5020 Magnetic Strap.
Page 34 Installation in Measurement Location Example: Z5004 Strap holes Front Rear Magnet Attach it to the wall surface (with metal plate afﬁ xed).
Page 35: Performing Measurements
Performing Measurements 3.1 Inspection Before Use 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 Check item Action...
Page 36 Inspection Before Use Check item Action No indicators are missing. Display all indicators and ensure that no indicators are missing. (p. 52) If any of the indicators are missing, send the instrument for repair. 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...
Page 37 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...
Page 38 Inspection Before Use Check that the electric charge detection function operates normally. (DT4221, DT4223) Check method Action Position the detector on a known Normal: power supply, such as a power outlet. A buzzer sounds. Abnormal: A buzzer does not sound and the display does not change.
Page 39: Measuring Voltage
Measuring Voltage 3.2 Measuring Voltage AC or DC voltage measurement and measurement using the AC/DC automatic judgment (DT4221, DT4223) can be performed. Before measurements 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.
Page 40: Measuring Dc Voltage
Measuring Voltage Measuring DC voltage Measure the DC voltage. Measurement using the AC/DC automatic judgment (DT4221, DT4223) The AC or DC are automatically judged and the voltage is measured. (The instrument does not measure both AC and DC at the same time.) voltage voltage...
Page 41: Measuring Frequencies
Measuring Frequencies 3.3 Measuring Frequencies The frequency can be checked. The frequency display is auto ranging. The AC voltage range can be changed by pressing the RANGE key. • If signals out of the range of frequency measurement are measured, “−−−−−”...
Page 42: Checking Continuity
Checking Continuity 3.4 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. For the DT4223 (The position of the rotary switch varies depending on the...
Page 43: Measuring Diode (Dt4222, Dt4224)
Measuring Diode (DT4222, DT4224) 3.5 Measuring Diode (DT4222, DT4224) The forward voltage of the diode is measured. If the forward voltage is within the range from 0.15 V to 1.5 V, it is indicated via a buzzer (intermittent buzzer sound). WARNING Before measuring, be sure to turn off the power to the measurement circuit.
Page 44: Measuring Resistance (Dt4222, Dt4223, Dt4224)
Measuring Resistance (DT4222, DT4223, DT4224) 3.6 Measuring Resistance (DT4222, DT4223, DT4224) Resistance is measured. To measure the low resistance accurately, it is necessary to cancel the resistance of the test leads. Perform zero adjustment for the displayed value using the relative value display (relative function) in advance.
Page 45: Measuring Capacitance (Dt4222, Dt4224)
Measuring Capacitance (DT4222, DT4224) 3.7 Measuring Capacitance (DT4222, DT4224) 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.
Page 46: Checking The Electric Charge (Dt4221, Dt4223)
Checking the Electric Charge (DT4221, DT4223) 3.8 Checking the Electric Charge (DT4221, DT4223) Whether a power line is energized can be checked easily. If the power line is energized, it is indicated via a buzzer and display. Use this function for coated power lines. The detection may not be made depending on the measurement conditions.
Page 47: Using Instrument Conveniently
Using Instrument Conveniently 4.1 Selecting the Measurement Range Auto or manual range can be selected. In the case of measurement where the desired range can be selected, [RANGE:] lights up at the bottom of the display. • Auto range Sets the optimum range automatically in accordance with the actual measurement.
Page 48: Measuring With The Manual Range
Selecting the Measurement Range Measuring with the manual range DT4221, DT4222 Press [RANGE: MANUAL] lights up. Each time is pressed, the range is switched. When the key is pressed at the highest range, the lowest range is speciﬁ ed once again. Example: When the range is 6.000 V to 600.0 V 6 V →...
Page 49: Retaining The Measured Value
Retaining the Measured Value 4.2 Retaining the Measured Value The measured value is retained. (The bar graph is updated.) Retaining the measured value manually (HOLD) To retain the measured value, press ([HOLD] lights up and the measured value is retained.) To cancel the hold state, press it again.
Page 50: Automatically Retaining The Measured Value When The Value Stablizes (Auto Hold) (Dt4223, Dt4224)
Retaining the Measured Value Automatically retaining the measured value when the value stablizes (AUTO HOLD) (DT4223, DT4224) Press for at least 1 sec. Press for at least 1 sec. ([HOLD] blinks, the instrument is Blinks waiting for the measured value to (Waiting for stabilize.) measured value to...
Page 51 Retaining the Measured Value Conceptual diagram (AC voltage) 100.0 V 99.0 V Retained measured value Auto hold Not retained automatically. (Example) 100.0 V (The threshold is not exceeded.) Auto hold (Example) 99.0 V Threshold Fluctuation range (Example) 12.0 V Measured value Start Start...
Page 52: Reducing The Noise (Filter)
Reducing the Noise (FILTER) 4.3 Reducing the Noise (FILTER) WARNING To avoid electric shock or other personal injury, select the appropriate passband setting when measuring the AC voltage. If an inappropriate frequency is selected, the measured value displayed will not be correct. The inﬂ...
Page 53 Reducing the Noise (FILTER) Example of frequency property when a ﬁ lter is used (AC voltage 600.0 V range, 100 V input) Measured value [V] Filter OFF Passband 500 [Hz] Passband 100 [Hz] 1000 10000 Frequency at 100 V input (Hz) Example: Power frequency on an aircraft or marine vessel is 400 Hz When voltage is 100 V...
Page 54: Checking The Relative Value/Performing Zero Adjustment
Checking the Relative Value/Performing Zero Adjustment 4.4 Checking the Relative Value/ Performing Zero Adjustment The relative value comparing to the standard value can be checked (relative function). It can also be used as the zero adjustment function. Zero adjustment eliminates the inﬂ uences of the test lead wiring resistance (continuity, resistance measurement) and the wiring capacity (capacitor measurement).
Page 55: Performing Zero Adjustment
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:...
Page 56 Checking the Relative Value/Performing Zero Adjustment Example 2: Capacitor measurement (DT4222, DT4224) Select the measurement function. Connect the test leads to the measurement terminals. Allow the test leads to open. DT4222: Press for at least 1 second. DT4224: Press at least 1 second. (After zero adjustment: 0.000 μF) Measure the capacitor.
Page 57: Turning On The Backlight
Turning On the Backlight 4.5 Turning On the Backlight The backlight can be turned on/off by pressing The backlight automatically turns off if the instrument is not operated for 40 seconds. The automatic backlight deactivation function can be disabled. (p. 52) 4.6 Using the Auto Power Save (APS) The auto power save function saves on battery consumption.
Page 58: Power-On Option Table
Power-on Option Table 4.7 Power-on Option Table The settings in the instrument can be changed or checked. When the operation key is released after changing the setting, the regular display then reappears. Turn on the power while pressing the operation key. (Turn the rotary switch from OFF.) Setting Method...
Page 59 Power-on Option Table Setting Method change (First position from OFF) Checking Example: Ver 1.00 software version (Second position from OFF) Check that there are no missing indicators. If any indicator is missing, stop using the instrument and send Displaying it for repair. indicators (Third position from OFF) The 9-digit serial number is displayed 3 digits at a time.
Page 60 Power-on Option Table...
Page 61: Specifi Cations
Speciﬁ cations 5.1 General Speciﬁ cations Power supply LR03 Alkaline battery × 1 Battery 1.4 V or more* • lights up. indicator Less than 1.3 V to 1.4 V* • lights up. warning voltage Less than 1.2 V to 1.3 V* •...
Page 62 General Speciﬁ cations −30°C to 60°C (−22°F to 140°F) (DT4221, DT4222) Storage −30°C to 70°C (−22°F to 158°F) (DT4223, DT4224) temperature and humidity 80% RH or less (no condensation) Dust-proof and IP42 (EN60529) water-proof Drop-proof 1 m on concrete (with the holster attached) distance Product 3 years (excluding the measurement accuracy)
Page 63: Electrical Characteristics
Electrical Characteristics 5.2 Electrical Characteristics • DCV: −60 dB or more (50 Hz/60 Hz) Noise suppression NMRR • DCV: −100 dB or more Noise suppression Ω CMRR (DC/50 Hz/60 Hz, 1 k unbalance) • ACV: −60 dB or more Ω (DC/50 Hz/60 Hz, 1 k unbalance) Response time...
Page 64 Electrical Characteristics Maximum rated 600 V AC (Measurement category III) voltage between 300 V AC (Measurement category IV) measurement Anticipated transient overvoltage: 6000 V terminals and ground Rated power 1.5 V DC × 1 voltage LR03 Alkaline battery × 1 Maximum rated 220 mVA power...
Page 65: Accuracy Table
Accuracy Table 5.3 Accuracy Table Accuracy warranty period 1 year Regulated power supply Until the power shutdown (1.15 V±0.2 V) range (DT4221, DT4222) Until the power shutdown (1.05 V±0.15 V) (DT4223, DT4224) Accuracy guarantee for 23°C±5°C (73°F±9°F), 80%RH or less temperature and humidity (no condensation) Temperature...
Page 66 Accuracy Table • Crest factor: The crest factor is 3 up to 4000 counts and reduces linearly to 2 at 6000 counts. • Connection method: AC coupling • Auto range movement threshold: 6,000 counts or more for upper range, 540 counts or less for lower range *1: The accuracy is speciﬁ...
Page 67 Accuracy Table AC voltage range Measurement Range range 6.000 V 60.00 V 600.0 V 9.999 kHz 1.000 kHz to 0.600 V or 6.00 V or more 60.0 V or more 9.999 kHz more • The input is up to 3 × 10 V •...
Page 68 Accuracy Table • Transient overvoltage: 6000 V • Crest factor: The crest factor is 3 up to 4000 counts and reduces linearly to 2 at 6000 counts. • Connection method: DC coupling *1: For AC voltage, the accuracy is speciﬁ ed in 1% or more of the range, however, ±5 dgt.
Page 69 Accuracy Table Resistance Range Accuracy Measurement current Ω 200 μA ±20% 600.0 ±0.9% rdg. ±5 dgt. Ω 100 μA ±20% 6.000 k ±0.9% rdg. ±5 dgt. Ω 10 μA ±20% 60.00 k ±0.9% rdg. ±5 dgt. Ω 1 μA ±20% 600.0 k ±0.9% rdg.
Page 70 Accuracy Table • Overload protection: 600 V DC/600 V AC or 3 × 10 V • Hz (energized for 1 minute) Current under overload: Steady state 15 mA or less, transient state 0.8 A or less (DT4221, DT4222) • Overload protection: 750 V DC/750 V AC or 3 × 10 V •...
Page 71: Maintenance And Service
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...
Page 72: Troubleshooting
Troubleshooting 6.2 Troubleshooting • 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 battery and pack it carefully to prevent damage during transportation.
Page 73 Troubleshooting Symptom Check and/or corrective action Nothing appears in Check that the battey is not exhausted. the display. Replace with a new battery. (p. 22) Or the display Check that the auto power save function has disappears after a not been activated. short time.
Page 74: Error Display
Error Display 6.3 Error Display Error display Description Solution ROM error Err 1 Program When the error appears in ROM error Err 2 the display, it is necessary Adjustment data to repair the instrument. EEPROM error Contact your authorized Err 4 Memory data Hioki distributor or reseller.
Page 75: Appx. 1 Rms And Average
Appendix Appx. 1 RMS and Average Difference between the RMS and Average When converting AC to RMS, 2 methods are available, “True RMS method (True RMS indication)” and “Average method (Average rectifying RMS indication)”. In the case of the sine wave where no skew is included, the same values are indicated in both methods.
Page 76 RMS and Average Appx.
Page 77 16-01 EN...

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