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――――――――――――――――――――――――――――――― ④REL キー ・リラティブ(相対値表示)機能の起動と解除を行います(リラ ティブ機能参照) 。 ⑤RANGE/dBm-Ωキー ・オートレンジ/マニュアルレンジを切り換えます。 ・マニュアルレンジ時のレンジを切り換えます。 ・電圧測定時に dBm 表示が選択されている場合に基準インピー ダンスを切り換えます。 ⑥DUAL キー ・デュアルディスプレイの各種の組み合わせを避択します。組み 合わせは以下の表の通りです。 測定項目 第1ディスプレイ 第2ディスプレイ 備考 Frequency V 時のみ Frequency V, / mV 時のみ Frequency AC+DC V Frequency AC+DC V AC+DC V AC+DC V AC+DC V Frequency Frequency AC+DC A...
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3801 DIGITAL HiTESTER INSTRUCTION MANUAL...
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Contents Introduction Inspection Safety Notes on Use Chapter 1 Names and Functions of parts Chapter 2 Measurement Procedures 2.1 Voltage Measurement 2.1.1 AC Voltage Measurement(using V function) 2.1.2 DC/AC/AC+DC Voltage Measurement(using V or mV function) 2.2 Resistance and Conductance (1/Ω) Measurement 2.2.1 Resistance Measurement 2.2.2 Conductance (1/Ω)Measurement 2.3 Diode Check...
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3.6 Display Value Selection Function 3.7 Demonstrate Annunciator 3.8 Backlight Display for Easy Reading in The Dark 3.9 Continuity Function for OHMS Measurement 3.10 Combination Display 3.11 1 ms Peak Hold 3.12 Communication (RS-232C) 3.13 Warning Function for Incorrect Current Input Terminal Connection 3.14 Power-on Options Chapter 4 Specifications...
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_______________________________________________________ Introduction Thank you for purchasing the HIOKI "3801 DIGITAL HiTESTER." To obtain maximum performance from the instrument, please read this manual first, and keep it handy for future reference. Inspection When you receive the instrument, inspect it carefully to ensure that no damage occurred during shipping.
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_______________________________________________________ Safety symbols symbol printed on the instrument indicates that the user should refer to a corresponding topic in the manual (marked with the symbol) before using the relevant function. In the manual, the symbol indicates particularly important information that the user should read before using the instrument.
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_______________________________________________________ Measurement categories (Overvoltage categories) This instrument conforms to the safety requirements for CAT II (1000 V), CAT III (600V) measurement instruments. To ensure safe operation of measurement instrument, IEC 61010 establishes safety standards for various electrical environments, categorized as CAT I to CAT IV, and called measurement categories.
_______________________________________________________ Notes on Use Follow these precautions to ensure safe operation and to obtain the full benefits of the various functions. DANGER Always verify the appropriate setting of the function selector before connecting the test leads. Disconnect the test leads from the measurement object before switching the function selector.
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Before using the instrument the first time, verify that it operates normally to ensure that the no damage occurred during storage or shipping. If you find any damage, contact your dealer or Hioki representative. WARNING Before using the instrument, make sure that the insulation on the test leads is undamaged and that no bare conductors are improperly exposed.
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_______________________________________________________ _______________________________________________________ Notes on Use...
_______________________________________________________ Chapter 1 Names and Functions of parts 13. LCD Display 2. SHIFT/PEAK Key 3. HOLD/MAX MIN Key 4. REL Key 5. RANGE/dBm- Ω Key 6. DUAL Key 7. Hz Key 8. Backlight Key 1. Function Switch 12. A Terminal 11.
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_______________________________________________________ 1. Function Switch Selects functions, and turns the instrument on and off. AC coupling voltage measurements. DC, AC or AC+DC Voltage measurements. DC, AC or AC+DC millivolt / mV measurements. Resistance, Continuity and conductance Ω measurements: 400Ω to 40MΩ and 40 nano-Siemens (high impedance) Diode or 10 MHz Frequency counter measurements.
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_______________________________________________________ For Ohm test, push this key momentarily to toggle ON/OFF. The beeper will sound continuity when test value below 100 counts (40,000 counts resolution : 1000 counts). For Duty cycle and Pulse width tests, press this key for more than 1 second to change the trigger slope + or -. HOLD/MAX MIN DATA HOLD or Refresh Data Hold The data hold function allows operator to hold the...
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_______________________________________________________ DUAL Dual Display Combination Press this key momentarily to select different combinations of dual display. The combinations of dual display are shown following table. Secondary Function Primary display Remark display AC Volt Frequency AC Volt AC Voltage Frequency / V, AC Volt DC Volt / mV...
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_______________________________________________________ Select Frequency, Duty Cycle, Pulse Width Test For Volt or Amp test, press this key momentarily to enter Frequency test and Voltage or Current is indicated in secondary display. Press this key again to step through Frequency , Duty cycle, Pulse width test.
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_______________________________________________________ 8. Backlight: Backlight Press this key momentarily to toggle backlight ON or OFF. Backlight turns off automatically after 30 seconds. Press this key for more than 1 second to toggle 4,000 or 40,000 counts resolution. Terminal Ω Use this terminal for voltage, resistance and diode functions.
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_______________________________________________________ DH MAX : 1 ms peak hold maximum reading : 1 ms peak hold minimum reading DH MIN : Continuity function annunciator : Diode/Audible continuity function annunciator : Current unit of primary or secondary display mµA : Voltage unit of primary or secondary display : Resistance (ohm) units Ω...
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_______________________________________________________ _______________________________________________________ Chapter 1 Names and Functions of parts...
_______________________________________________________ Chapter 2 Measurement Procedures WARNING Observe the following precautions to avoid electric shock. There insulating clearance around the terminals is not safe. Be careful when connecting test leads. The changing of the function switch when replacing the test terminals requires disconnection of the test leads from the item being measured and then the disconnection of the test leads from the terminals.
_______________________________________________________ 2.1 Voltage Measurement DANGER The maximum input voltage is 1200 VDC, 850 Vrms, or, 10 V Hz. (600 VDC/rms or 10 V Hz when setting the function switch to Attempting to measure voltage in excess of the maximum input could destroy the instrument and result in personal injury or death.
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_______________________________________________________ (6) Push key momentarily to enter multi-display mode. DUAL Below, that is key operation for AC voltage. DUAL Key operation Primary display Secondary display Push Dual AC Voltage Push Dual AC Voltage Push Dual Push Dual AC Voltage (7) Push key momentarily to enter frequency measurement and push this key again to step through Duty cycle, Pulse width and frequency measurements.
_______________________________________________________ 0 to 750 VAC black 2.1.2 DC/AC/AC+DC Voltage Measurement (using / V or / mV function) (1) Set the function switch to V or (2) Connect the black test lead to terminal and red test lead to terminal. V Ω (3) Touch the test leads to the test points and read the display.
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_______________________________________________________ (5) Push key momentarily to step through DC, AC SHIFT/PEAK and AC+DC test. Key operation Primary display Secondary display Push SHIFT/PEAK AC Voltage (mV) Push SHIFT/PEAK AC+DC Voltage (mV) Push SHIFT/PEAK DC Voltage (mV) (6) Push key momentarily to enter multi-display mode. DUAL Below, the table is key operation for DC voltage or...
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_______________________________________________________ (7) Push key momentarily to enter frequency measurement and push this key again to step through Duty cycle, Pulse width and frequency measurements. Key operation Primary display Secondary display Push Hz DC(AC, AC+DC) Voltage (mV) Push Hz % (Duty cycle) DC(AC, AC+DC) Voltage (mV) Push Hz...
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_______________________________________________________ 0 to 750 VAC,1000 VDC black 0 to 400 mVAC/DC black _______________________________________________________ Chapter 2 Measurement Procedures...
_______________________________________________________ 2.2 Resistance and Conductance (1/Ω) Measurement DANGER Never apply voltage to the test leads when the Resistance functions is selected. Doing so may damage the instrument and result in personal injury. To avoid electrical accidents, remove power from the circuit before measuring. 2.2.1 Resistance Measurement (1) Set the function switch to Ω...
_______________________________________________________ but no continuity check is carried out. PUSH PUSH 0 to 40 MΩ black 2.2.2 Conductance (1/Ω) Measurement (1) Set the function switch to Ω (2) Connect the black test lead to terminal and red test lead to terminal. V Ω...
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_______________________________________________________ 25 MΩ to black _______________________________________________________ Chapter 2 Measurement Procedures...
_______________________________________________________ 2.3 Diode Check DANGER Never apply voltage to the test leads when the Diode Check functions is selected. Doing so may damage the instrument and result in personal injury. To avoid electrical accidents, remove power from the circuit before measuring. A good diode allows current to flow in one direction only.
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_______________________________________________________ Forward Bias Reverse Bias black black _______________________________________________________ Chapter 2 Measurement Procedures...
_______________________________________________________ 2.4 Frequency Measurement DANGER The maximum input voltage is 1200 VDC, 850 V/Hz. Attempting to measure voltage in Vrms, or 10 excess of the maximum input could destroy the instrument and result in personal injury or death. (1) Set the function switch to position.
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_______________________________________________________ The test range of divide 1 is from 1 Hz to 200 NOTE kHz. The test range of divide 100 is from 50 Hz to 10 MHz. Push key momentarily to step through Duty cycle, Pulse width and frequency measurements. For Duty cycle and Pulse width tests, press key for more 1 second to change the SHIFT/PEAK...
_______________________________________________________ 2.5 Capacitance Measurement DANGER Never apply voltage to the µA.mA. .TEMP. OUT terminal. Doing so may damage the instrument and result in personal injury. WARNING Be sure to short the capacitor to discharge it before measuring it if it may charged. Doing so may damage the instrument and result in personal injury.
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_______________________________________________________ 0 to 9999µ F black _______________________________________________________ Chapter 2 Measurement Procedures...
_______________________________________________________ 2.6 Current Measurement WARNING Do not use the tester to measure current when the electric potential is 600 V or greater. The current function overload protection trips at 600 VAC. To avoid electrical accidents, remove power from the circuit before measuring. Do not apply voltage while a current range is selected.
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_______________________________________________________ (6) Push key momentarily to enter multi-display mode. DUAL Below, the table is key operation for DC mA. DUAL Key operation Primary display Secondary display Push Dual DCµA Push Dual DCµA ACµA Push Dual DCµA Below, the table is key operation for ACµA.
_______________________________________________________ 0 to 4 mA DC/AC black 2.6.2 mA Measurement (40 mA,400 mA) (1) Set the function switch to mA.A (2) Connect the black test lead to terminal and red test lead to terminal. µA.mA. .TEMP. (3) Touch the test leads to the test points and read the display. (4) For manual range selection, press the RANGE/dBm-Ω...
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_______________________________________________________ (6) Push key momentarily to enter multi-display mode. DUAL Below, the table is key operation for DC mA. DUAL Key operation Primary display Secondary display Push Dual DC mA Push Dual DC mA AC mA Push Dual DC mA Below, the table is key operation for AC mA.
_______________________________________________________ 0 to 400 mA DC/AC black 2.6.3 A Measurement (10 A) WARNING The maximum input current in the 10 A range is DC 10 A or AC 10 A rms. Never exceed this limit, as doing so could result in destruction of the instrument and personal injury or death.
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_______________________________________________________ (4) Push key momentarily to step through DC, AC SHIFT/PEAK and AC+DC test. Key operation Primary display Secondary display Push SHIFT/PEAK AC A Push SHIFT/PEAK AC+DC A Push SHIFT/PEAK DC A (5) Push key momentarily to enter multi-display mode. DUAL Below, the table is key operation for DC A.
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_______________________________________________________ 0 to 10 A DC/AC black _______________________________________________________ Chapter 2 Measurement Procedures...
_______________________________________________________ 2.7 Temperature Measurement DANGER Never apply voltage to the µA.mA. .TEMP. OUT terminal. Doing so may damage the instrument and result in personal injury. (1) Turn the function switch to the range. TEMP/ (2) Plug the temperature probe (option: 9180, 9181, 9182, 9183) into (the plus side) µA.mA.
_______________________________________________________ 2.8 Square Wave Output DANGER Never apply voltage to the µA.mA. .TEMP. OUT terminal. Doing so may damage the instrument and result in personal injury. (1) Turn the function switch to the range. TEMP/ (2) Push key momentarily to select square wave SHIFT/PEAK output function.
_______________________________________________________ 2.9 Timer + Signal Output DANGER Never apply voltage to the µA.mA. .TEMP. OUT terminal. Doing so may damage the instrument and result in personal injury. (1) Turn the function switch to the range. TEMP/ (2) Push and hold key for 1 sec to select timer SHIFT/PEAK function.
_______________________________________________________ Chapter 3 Special Functions Instruction This multi-meter provides operators with various functions including: Dynamic Recording Data Hold / Refresh Hold Relative Analog Bar graph Auto Power Off and Sleep Mode Display Value Selection Function Demonstrate Annunciator of Display (LCD Display Check Function) Backlight LCD for easy reading in the dark Continuity Function For Ohms Measurement Combination Display...
_______________________________________________________ 3.1 Dynamic Recording The dynamic recording mode can be used to catch intermittent turn on or turn off surges, verify performance, measure while you are away, or take readings while you are operating the equipment under test and can not watch the meter.
_______________________________________________________ PUSH 1sec PUSH PUSH PUSH 1sec PUSH PUSH 1sec PUSH PUSH 1sec 3.2 Data Hold/Refresh Hold 3.2.1 Data Hold The data hold function allows operators to hold the displayed digital value, while the analog bar graph continues showing the present readings. Press HOLD/MAX MIN to enter the data hold mode, and the will be displayed.
_______________________________________________________ 3.2.2 Refresh Hold You can use the power-on option to set the Refresh Hold when you are working on a difficult measuring field. This function will freeze measuring value automatically, and sound a tone to remind user. The operation of push key is same as the operation of Data hold.
_______________________________________________________ 3.4 Analog Bar Graph The analog bar graph display provides a 21 segments analog reading representation. The unit of the bar graph is 50 counts/bar (40,000 counts resolution: 500 counts/bar) except when in the RELative mode. The unit of the bar graph is 100 counts/bar in the RELative mode.
_______________________________________________________ All settings are reset after returning from sleep NOTE mode or auto power off. The functions in this section are disabled when the pulse output function, timer + signal output function, recording function, or 1 ms peak hold function is active. 3.6 Display Value Selection Function It is possible to select either 4000 or 40000 as the maximum...
_______________________________________________________ 3.8 Backlight Display for Easy Reading in The Dark Press Backlight (yellow) key for more than 1 second to toggle backlight ON/OFF. Backlight turns off automatically after 30 seconds. To disable backlight(off automatically after 30 seconds), please refer to power-on option introduction. 3.9 Continuity Function for OHMS Measurement In Ohm test, press...
_______________________________________________________ 3.10 Combination Display The frequency measuring mode helps detect the presence of harmonic currents in neutral conductors and determines whether these neutral currents are the result of unbalanced phases or non-linear loads. For Voltage or Current test, press key momentarily to enter Frequency test.
_______________________________________________________ The accuracy figures in 1ms peak hold function NOTE are determined with DC coupling mode ( displayed.). (See 4.2 Accuracy Chart.) Exiting the 1 ms peak hold function switches to auto ranging. 3.12 Communication (RS-232C) This meter has a communication capability. This function will assist user to recording and keeping data easy.
_______________________________________________________ 3.13 Warning Function for Incorrect Current Input Terminal Connection This instrument has a safety function to prevent accidents when measuring voltages. Under the following conditions, flashes in the first display and the beeper sounds. Error The function switch is set to a position other than , and a test lead is connected to the A terminal.
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_______________________________________________________ Disable beeper function. Turns off all beeper functions. RANGE/dBm- Ω Select 4,000/40,000 counts resolution. In general, The meter is 4,000 counts (3 3/4 digits) resolution and the response time is 3.3 times per second. By this option, the meter can be changed to 40,000 counts (4 3/4 digits) resolution and the response time can be updated to one time per second.
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_______________________________________________________ _______________________________________________________ Chapter 3 Special Functions Instruction...
_______________________________________________________ Chapter 4 Specifications 4.1 General Specification Measurement System Dual integration AC Measurement True RMS measurement System Type of Display LCD,Backlight Maximum 40000count, 4000count measurement count Polarity Display Automatically lights only when '-'. Battery Low Display indicator flashes. Range Selection Automatic or Manual Function Switch Rotary switch...
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_______________________________________________________ Rated supply voltage 9 VDC x 1 Continuous operating Approx. 50 h (VDC, manganese battery) time Approx. 90 h (VDC, alkaline battery) Maximum input voltage VDC, VAC, V(AC+DC): 40 mV to 400 mV range: 600 VDC/ACrms(sin) except 40 mV to 400 mV range: 1200 VDC/850 VACrms(sin) ADC,AAC,A(AC+DC): 400µA to 400 mA range:...
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_______________________________________________________ Accessories 3851-10 TEST LEAD Protective holster Instruction manual one 6F22 manganese battery (built into instrument) Options 3852 RS-232C PACKAGE 3853 CARRYING CASE 9180 SHEATH TYPE TEMPERATURE PROBE 9181 SURFACE TEMPERATURE PROBE 9182 SHEATH TYPE TEMPERATURE PROBE 9183 SHEATH TYPE TEMPERATURE PROBE 9472 SHEATH TYPE TEMPERATURE PROBE...
_______________________________________________________ 4.2 Accuracy Chart We define measurement tolerances in terms of rdg. (reading) and dgt. (digit) values, with the following meanings: rdg. (reading or displayed value) The value currently being measured and indicated on the measuring instrument. dgt. (resolution) The smallest displayable unit on a digital measuring instrument, i.e., the input value that causes the digital display to show a "1".
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_______________________________________________________ AC VOLTAGE (TRUE RMS : From 5% to 100% of range. ) Resolution Accuracy Overload Range (40000 counts Protection 50/60Hz 45Hz to 5kHz 5kHz to 20kHz mode) 600V DC/ 40mV 10µV(1µV) 0.7%rdg. 5dgt. 1.5%rdg. 5dgt. 2%rdg. 5dgt. 400m 0.1mV(10µV) 0.7%rdg.
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_______________________________________________________ AC CURRENT (TRUE RMS: From 5% to 100% of range.) Resolution Accuracy Overload Range Input impedance (40000 counts 45 Hz to 2 kHz Protection mode) 400µA 0.1µA(10nA) 1.0%rdg. 5dgt. Approx.100Ω 4000µA 1µA(0.1µA) 1.0%rdg. 5dgt. Approx.100Ω 1A/600VAC, High Energy 40mA 10µA(1µA) 1.0%rdg.
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_______________________________________________________ 1 ms PEAK HOLD Specified accuracy 40 counts (40000 counts NOTE mode : 400 counts) for changes > 1 ms in duration in DC coupling ( is displayed.). VOLTAGE (DC coupling only) Overload Resolution Range Accuracy Protection (40000 counts mode) 600V DC/ 40mV 10µV(1µV)
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_______________________________________________________ AUDIBLE CONTINUITY TEST Resolution Test Test Overload Range Accuracy (40000 counts Current Voltage Protection mode) built-in buzzer sounds when Approx. 600V DC/ Diode 1mV(0.1mV) reading is <3.3V 1.65mA below approx. 100 mV FREQUENCY for Voltage measurement Min.Input Overload Resolution Range Accuracy Freq.
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_______________________________________________________ K -TYPE TEMPERATURE TEST Overload Range resolution Accuracy Protection to 1372 0.3%rdg. 3 600V DC/rms to 2502 0.3%rdg. 6 The accuracy does not include the tolerance of temperature probe. SQUARE WAVE OUTPUT Frequency types: 0.5Hz, 1Hz, 2Hz, 10Hz, 50Hz, 60Hz,75Hz, 100Hz, 150Hz, 200Hz, 300Hz, 600Hz, 1200Hz, 1600Hz, 2400Hz, 4800Hz.
_______________________________________________________ Chapter 5 Maintenance and Service 5.1 Changing the Battery and Fuses WARNING To avoid electric shock when replacing the battery and fuses, first disconnect the test leads from the object to be measured. Also, after replacing the battery and fuses, always replace the cover and tighten the screws before using the tester.
_______________________________________________________ 5.1.1 Battery Replacement One 6F22 manganese battery (1) Detach the test leads from the measuring circuit and confirm that the function switch is off. (2) Detach the holster. (3) Invert the lower case (bottom of the main unit) and use a Phillips screwdriver to remove the three case-retaining screws.
_______________________________________________________ 5.1.2 Fuse Replacement For µA.mA terminal fuse 1 A/600 VAC φ10.319-34.925 mm Made by Littelfuse BLS1 (Short circuit rating: 10 kA) or Made by GOULD SHAWMUT SBS1 (Short circuit rating: 100 kA) or Made by Ferraz SHAWMUT SBS1 (Short circuit rating: 100 kA) For A terminal fuse 15 A/600 VAC φ10.319-38.1 mm Made by Littelfuse KLK15 (Short circuit rating: 100 kA)
Include cushioning material so the instrument cannot move within the package. Be sure to include details of the problem. Hioki cannot be responsible for damage that occurs during shipment. 5.3 Cleaning To clean the instrument, wipe it gently with a soft cloth moistened with water or mild detergent.
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HIOKI 3801 DIGITAL HiTESTER Instruction Manual Publication date: August 2004 Revised edition 12 Edited and published by HIOKI E.E. CORPORATION Technical Support Section All inquiries to Sales and Marketing International Department 81 Koizumi, Ueda, Nagano, 386-1192, Japan TEL: +81-268-28-0562 FAX: +81-268-28-0568 E-mail: os-com@hioki.co.jp...
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