Contents Introduction Inspection Safety Notes Notes on Use viii Chapter 1 Overview 1.1 Product Overview 1.2 Features Chapter 2 Names and Functions of Parts 2.1 Push Buttons 2.2 Rotary Switch 2.3 Input Terminal 2.4 LCD Display Illustration Chapter 3 Measurement Procedures 3.1 Voltage Measurement 3.1.1 AC Voltage Measurement 3.1.2 Frequency Measurement...
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Chapter 4 Special Functions Instructions 31 4.1 Data Hold 4.2 Refresh Hold 4.3 Dynamic Recording 4.4 Harmonic Ratio Measurement 4.5 Relative (Zero) 4.6 % of mA Measurement (4-20mA) 4.7 Beeper On/Off 4.8 Set Up 4.8.1 Timer Setting for Auto-power Save 4.8.2 Selecting % Display for 4 to 20 mA 4.8.3 Selecting J/ k Types and Display...
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_______________________________________________ Introduction Thank you for purchasing the HIOKI "3805 DIGITAL HiTESTER". To obtain maximum performance from the product, please read this manual first, and keep it handy for future reference. Inspection When you receive the product, inspect it carefully to ensure that no damage occurred during shipping.
_______________________________________________ Safety Notes WARNING This product is designed to conform to IEC 61010 Safety Standards, and has been thoroughly tested for safety prior to shipment. However, mishandling during use could result in injury or death, as well as damage to the product. Be certain that you understand the instructions and precautions in the manual before use.
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_______________________________________________ This manual contains information and warnings essential for safe operation of the product and for maintaining it in safe operating condition. Before using the product, be sure to carefully read the following safety notes. Safety symbols symbol printed on the product indicates that the user should refer to a corresponding topic in the manual (marked with the...
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_______________________________________________ The following symbols in this manual indicate the relative importance of cautions and warnings. Indicates that incorrect operation presents an extreme hazard that could DANGER result in serious injury or death to the user. Indicates that incorrect operation presents a significant hazard that could WARNING result in serious injury or death to the user.
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_______________________________________________ We define measurement tolerances in terms of f.s. (full scale), rdg. (reading) and dgt. (digit) values, with the following meanings: f.s. (maximum display value or scale length) The maximum displayable value or the full length of the scale. This is usually the maximum value of the currently selected range.
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_______________________________________________ Measurement categories (Overvoltage categories) This product conforms to the safety requirements for CAT II (1000V), CATIII (600V) measurement products. To ensure safe operation of measurement product, IEC 61010 establishes safety standards for various electrical environments, categorized as CAT I to CAT IV, and called measurement categories.
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_______________________________________________ Higher-numbered categories correspond to electrical environments with greater momentary energy. So a measurement device designed for CAT III environments can endure greater momentary energy than a device designed for CAT II. Using a measurement product in an environment designated with a higher-numbered category than that for which the product is rated could result in a severe accident, and must be carefully avoided.
Before using the product, make sure that the insulation on the test leads is undamaged and that no bare conductors are improperly exposed. Using the product under such conditions could result in electrocution. Replace the test leads with the specified Hioki Model 3851-10. _______________________________________________ Notes on Use...
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_______________________________________________ CAUTION To avoid damage to the product, do not allow the product to get wet, and do not use it when your hands are wet. Adjustments and repairs should be made only by technically qualified personnel. This product should be installed and operated indoors only, between 0 and 40 and 80% RH or less.
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_______________________________________________ To avoid corrosion from battery leakage, remove the NOTE batteries from the product if it is to be stored for a long time. _______________________________________________ Notes on Use...
_______________________________________________ Chapter 1 Overview 1.1 Product Overview This multimeter has DCV, ACV, DCA, ACA, OHM, Diode check, Audible continuity, Capacitor, Temperature and % of 4-20 mA tests. It also built-in TRUE-RMS for non-linear and traditional loads, and frequency measurement helps detect the presence of harmonics in neutral conductors and determine whether they are the result of unbalanced phases or non-linear loads.
_______________________________________________ 1.2 Features The multimeter is shown in the following Figure. This meter has a lot of functions can be used in HVAC, Power, Process fields, Electronic/Electrical system diagnostics and troubleshooting. It will be the best one of your need. See below detail: Resolution of display: 9,999 counts for Voltage and frequency and 3,999 counts for other measurements.
_______________________________________________ Chapter 2 Names and Functions of Parts _______________________________________________ Chapter 2 Names and Functions of Parts...
_______________________________________________ 2.1 Push Buttons The operation of push-button is shown as below. When push the button, a display symbol will light, and the beeper will sound. Turning the rotary switch to another switch setting resets all push buttons to their default state. button SHIFT For voltage and current measurements, press this...
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_______________________________________________ For Ohm test, press button momentarily to toggle "Audible continuity mode" ON/OFF. Pushing this button for more than 1 second will exit the continuity function and returns to the auto- ranging ohm measurement. button (Data Hold or Refresh Hold) HOLD Press this button momentarily to toggle data hold on or off.
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_______________________________________________ button Press this button momentarily to toggle the relative mode ON or OFF. button RANGE In auto-range press this button momentarily to select manual range and turn off the "AUTO" annunciator. In manual range, press this button momentarily to step up 1 range at one time, press this button for more than 1 second to select auto-range.
_______________________________________________ 2.2 Rotary Switch To select function, turn the rotary switch to a switch setting. Then the meter is ready for use. (If you press and hold any push button while pushing the meter from OFF to ON, the display will remain lit until the push button is released.) Power off position.
_______________________________________________ 2.3 Input Terminal 1. Volts, Ohms, Diode, T1, Capacitance and Frequency of Voltage measurements. 2. Common terminal for all measurements except temperature of T1 test. 3. Current (maximum 400 mA) and temperature of T2 measurements. 4. Current (maximum 10 A continuous) and temperature of T2 measurements.
_______________________________________________ 2.4 LCD Display Illustration Enable Auto power save Indicates AUTO range Mode AUTO Data hold annunciator HOLD Thermocouple type display T1 or T2 temperature measurement T1-T2 temperature measurement Scan the T1, T2 and T measurements SCAN Enable RS-232C RS232C Relative mode annunciator Direct Current or Voltage Alternating Current or Voltage...
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_______________________________________________ Units of Temperature Harmonics ratio % display for 4-20mA measurement Units of Voltage measurement Units of Current measurement µm A Units of Capacitance measurement µm F Units of Resistance (ohm) measurement Mk Ω Units of frequency measurement Bar-graph indicator _______________________________________________ Chapter 2 Names and Functions of Parts...
_______________________________________________ Chapter 3 Measurement Procedures DANGER Observe the following precautions to avoid electric shock. 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. When measuring voltage which includes harmonic NOTE waves...
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_______________________________________________ Preparation for Measurement The safety caps are attached to the test leads. Remove these caps before connecting to the unit. _______________________________________________ Chapter 3 Measurement Procedures...
_______________________________________________ 3.1 Voltage Measurement DANGER The maximum input voltage is 1000 VDC, 1000 Vrms or 10 V Hz. Attempting to measure voltage in excess of the maximum input could destroy the product and result in personal injury or death. To avoid electrical shock, be careful to avoid shorting live lines with the test leads.
_______________________________________________ 3.1.1 AC Voltage Measurement V ". (1) Set the rotary switch to "Hz (2) Connect the black test lead to "COM" terminal and red test lead to " " terminal. (3) Touch the test leads to the test points and read the display.
_______________________________________________ 3.1.2 Frequency Measurement V ". (1) Set the rotary switch to "Hz (2) Press button momentarily two times to SHIFT set frequency measurement. (3) Connect the black test lead to "COM" terminal and red test lead to " " terminal. (4) Touch the test leads to the test points and read the display.
_______________________________________________ 3.1.3 DC Voltage Measurement V ". (1) Set the rotary switch to "Hz (2) Push button momentarily to set DC test. SHIFT (3) Connect the black test lead to "COM" terminal and red test lead to " " terminal. (4) Touch the test leads to the test points and read the display.
_______________________________________________ 3.2 Diode Check DANGER Never apply voltage to the test leads when the Diode Check functions is selected. Doing so may damage the product 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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_______________________________________________ Reverse the test leads and measure the voltage across the diode again. If the diode is: Good : "OL" is displayed. Shorted : Near 0 V drop is displayed in both directions, and the beeper sounds continuously. Open : "OL" is displayed in both directions. Repeat step (3) and (4) for other diodes.
_______________________________________________ 3.3 Resistance Measurement DANGER Never apply voltage to the test leads when the Resistance, Continuity Check functions are selected. Doing so may damage the product and result in personal injury. To avoid electrical accidents, remove power from the circuit before measuring. (1) Set the rotary switch to "...
_______________________________________________ 3.4 Current Measurement DANGER Never apply voltage to the test leads when a current measurement function is selected. Doing so may damage the product and result in personal injury. To avoid electrical accidents, remove power from the circuit before connecting the test leads.
_______________________________________________ 3.4.1 AC Current Measurement A ". (1) Set the rotary switch to "Hz (2) Connect the black test lead to "COM" terminal and red test lead to "A" terminal. (3) Touch the test leads to the test points and read the display.
_______________________________________________ 3.4.2 Frequency Measurement A ". (1) Set the rotary switch to "Hz (2) Press button momentarily two times to SHIFT set frequency measurement. (3) Connect the black test lead to "COM" terminal and red test lead to "A" terminal. (4) Touch the test leads to the test points and read the display.
_______________________________________________ 3.4.3 DC Current Measurement A ". (1) Set the rotary switch to "Hz (2) Push button momentarily to set DC test. SHIFT (3) Connect the black test lead to "COM" terminal and red test lead to "A" terminal. (4) Touch the test leads to the test points and read the display.
_______________________________________________ 3.5 Capacitance Measurement DANGER Never apply voltage to the test leads when the Capacitance functions are selected. Doing so may damage the product and result in personal injury. To avoid electrical accidents, remove power from the circuit before measuring. (1) Set the rotary switch to "...
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_______________________________________________ Observe polarity when measuring the polarized NOTE capacitors. Discharge capacitor before measurement. When testing low-capacitance devices, noise introduced into the test leads from the human body may prevent the measured value from stabilizing. If this occurs, use the optional 9617 CLIP ON BASE or the optional 9618 CLIP-TYPE LEAD and keep hands away from the leads during measurement.
_______________________________________________ 3.6 Temperature Measurement DANGER Do not apply a voltage while a temperature range is selected. Applying a voltage may result in damage to the unit, or a serious accident. Do not input a voltage exceeding 30 Vrms or 60 VDC to the temperature probe.
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For J type temperature probes , please read its manual prior to use. The temperature range of the 3805 is different from the range of temperature probes. Please measure within the common temperature range.
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_______________________________________________ SCAN MODE This function will assist you to see the T1, T2 and T (T1-T2) display, quickly. Press and hold SHIFT button for more than 1 second to toggle SCAN mode ON or OFF. When SCAN mode is selected, the display continuously cycles between T1, T2 and T temperature readings, and the annunciator of will be lit.
_______________________________________________ Chapter 4 Special Functions Instructions This multi-meter provides the operator with various functions including: (1) Data Hold (2) Refresh Hold (3) Dynamic Recording (4) Harmonic Ratio Measurement (5) Relative (Zero) (6) % of mA Measurement (4-20 mA) (7) Beeper On/Off (8) Set Up (9) Communication (RS-232C) _______________________________________________...
_______________________________________________ 4.1 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 button to enter the data hold mode, and the " " HOLD will be displayed.
While the refresh hold mode is effective , is displayed. HOLD When the reading value is unstable, the 3805 may NOTE not update the display. In the voltage, current, and capacitance function, the reading is not updated when the measurement value is less than 50 counts.
_______________________________________________ 4.3 Dynamic Recording The dynamic recording mode can be used to catch intermittent and 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. The average reading is useful for smoothing out unstable or changing inputs, estimating the percent of time a circuit is operational, or verifying circuit...
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_______________________________________________ (4) The beeper sounds when a new maximum or minimum value is recorded. (5) If an overload is recorded the averaging function is stopped. An average value becomes "OL"(overload). In dynamic recording, the auto power save feature NOTE is disabled, after disabled and the "APS" turns off.
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_______________________________________________ Current value Press REC button for more than 1 second Maximum value Minimum value Max. - Min. value Average value _______________________________________________ Chapter 4 Special Functions Instructions...
_______________________________________________ 4.4 Harmonic Ratio Measurement The harmonic ratio measurement function shows how much the wave is distorted. The distortion rate of the wave is shown in accordance with the following formula. The harmonic ratio = (the conversion value from the mean value - the true RMS value) X 100/the true RMS value.
_______________________________________________ 4.5 Relative (Zero) The relative function subtracts a stored value from the present measurement and displays the result. (1) Press button momentarily to set the relative mode. It will set the display to zero and stores the displayed reading as a reference value, also "REL"...
_______________________________________________ 4.6 % of mA Measurement (4-20mA) The 4-20 mA (0-20 mA) function converts 4 mA (0 mA) as 0% and 20 mA as 100%. It is used in instrumentation. (1) Set the rotary switch to "Hz mA ". (2) Push and hold button for more than 1 sec SHIFT to set % of mA test.
_______________________________________________ 4.7 Beeper On/Off Press and hold button while turning the rotary switch to any on position. Turns off all beeper functions. Beeper off function remains selected until the meter is turned off. _______________________________________________ Chapter 4 Special Functions Instructions...
_______________________________________________ 4.8 Set Up This multi-meter provides the operator with set up procedures below: (1) Timer setting for auto-power save (2) Selecting % display for 4-20 mA, or 0-20 mA (3) Selecting J/k types and display How to entry setup mode Press and hold button then turns the rotary SHIFT...
NOTE screen for selecting 4-20mA or 0-20mA measurement, the setting screen for the back light appears. Although this screen appears, the 3805 can not perform this function. Because the 3805 does not include a back light, please ignore this display.
_______________________________________________ The instrument will auto-power save, if none of the NOTE following happens. You can push any buttons to wake-up the meter after auto power save. Push buttons used. Measurement function changed. Set dynamic recording. Disable auto power save with power-on option. 4.8.2 Selecting % Display for 4 to 20 mA In this mode, you can set % display for other ranges.
_______________________________________________ 4.8.3 Selecting J/ k Types and Display The display will indicate existing setting. Press button momentarily to change the setting. It HOLD will cycle through K/ , K/ , J/ and J/ , then come back K/ . Press button momentarily to save your setting after you finished.
_______________________________________________ 4.9 Communication (RS-232C) This meter has a communication capability. This function will assist user to recording and keeping data easy. We offer the 3854 RS-232C PACKAGE to optional accessories. This package includes a cable with optical receiver, positional connector and a software disc.
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_______________________________________________ Please fix the connector so that the label becomes downward. _______________________________________________ Chapter 4 Special Functions Instructions...
_______________________________________________ Chapter 5 Specifications 5.1 General Specifications Measurement Dual integration Mode AC measurement True RMS measurement Mode Function DCV, ACV, DCA, ACA, OHM, Diode check, Audible continuity, Capacitor, Temperature, % of 4-20 mA and Frequency tests. Harmonics ratio measurement. The thermocouple types can be selected for K and J.
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_______________________________________________ Display The liquid crystal display (LCD) is 4 digits with maximum reading 3,999/9,999 counts. 41 segments analog bar graph and full annunciator Automatic polarity indication. Range Automatic or Manual Selection Measuring Rate 3 times per second. 1 time per second for frequency measurement.
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_______________________________________________ Temperature specified accuracy X 0.15/ Coefficient (from 0 to 18 or 28 to 40 ) (from 32 to 64 or 82 to 104 ) Noise NMRR DCV: more than -60 dB (50/60 Hz) Rejection CMRR DCV: more than -120 dB (50/60 Hz) ACV: more than -60 dB (50/60 Hz) (1 kΩ...
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_______________________________________________ Option 3851-10 TEST LEAD (a pair) Protective holster 3853 CARRYING CASE 3854 RS-232C PACKAGE 9180, 9182, 9183, 9472 to 9475 SHEATH TYPE TEMPERATURE PROBE 9181 SURFACE TEMPERATURE PROBE 9476 SURFACE TYPE TEMPERATURE PROBE 9617 CLIP ON BASE 9618 CLIP-TYPE LEAD µA µA Protective Fuse...
_______________________________________________ 5.2 Accuracy Chart Temperature and humidity for guaranteed accuracy 5 (73 9 ), 80% RH or less, no condensation Guaranteed accuracy period 1 year (1) DC VOLTAGE Overload Range Resolution Accuracy Protection 999.9 mV 0.1 mV 0.2%rdg. 5dgt. 1000 V DC/ 9.999 V 1 mV 0.1%rdg.
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_______________________________________________ 3. 500 Hz to 2 kHz Overload Range Resolution Accuracy Protection 999.9 mV 0.1 mV 1000 V DC/ 9.999 V 1 mV 2.0%rdg. 6dgt. 1000 V rms 99.99 V 10 mV 2.0%rdg. 6dgt. V Hz or 10 999.9 V 0.1 V Measurement accuracy is prescribed from 5% to 100% of the range For lower than 5.0mV,the specification will add 45dgt to specified...
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_______________________________________________ (4) AC CURRENT Internal Resolut Overload Range Accuracy Resistance -ion Protection (approx) 400.0 µA 0.1 µA 100 Ω 1.0%rdg. 5dgt. 0.5 A/600 V 4000 µA 1 µA 100 Ω (40 Hz to 500 Hz) Quick 10 µA 1 Ω 40.00 mA Acting Fuse 1 Ω...
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_______________________________________________ (6) RESISTANCE Maximum Resolut Overload Range Accuracy Test -ion Protection Voltage 400.0 Ω 0.1 Ω 3.3 V 1 Ω 4.000 kΩ 0.5%rdg. 3dgt. max. 10 Ω 600 V DC/ 40.00 kΩ 100 Ω 400.0 kΩ 1.28 V 600 V rms 4.000 MΩ...
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_______________________________________________ (9) DIODE CHECK Resolution Test Current Overload Range Accuracy Voltage Protection 1 mV approx. 0.7 mA 600 V DC/ Diode 1.0%rdg. 2dgt. Less than 3.3 V 600 V rms In Audible continuity function if measurement voltage is about less than 100 mV, the beeper sounds.
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_______________________________________________ (11) K -TYPE TEMPERATURE TEST Overload Range Resolution Accuracy protection to 850 (K) 0.3%rdg. 3 to 650 (J) 600 V DC to 1562 /600 V rms 0.3%rdg. 6 to 1202 (J) Do not allow the temperature sensor to contact a surface that is energized above 30 V RMS or 60 V DC, such voltages pose a shock hazard.
_______________________________________________ Chapter 6 Maintenance and Service 6.1 Changing the Battery and Fuses WARNING To avoid electric shock when replacing the battery and fuse, first disconnect the test leads from the object to be measured, then open the cover. After replacing the battery or fuse, replace the cover and screws before using the product.
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_______________________________________________ Use the following procedures to replace the battery, or fuse. (1) Using the rotary switch to turn the meter off, and remove the test leads from terminals. (2) Loosen 3 screws on bottom cover, pull up and move the cover. (3) Replace the defective battery.
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_______________________________________________ For A terminal fuse : TDC600 (Made by Cooper Bussmann Inc.) 10A/600V, 6.35 mm-25.35 mm dia. 6F22 manganese battery For µA mA terminal fuse : D086483P (Made by FERRAZ Inc.) F0.5A/660V, 6.35mm- 32mm dia. or 70125 (Made bySIBA Inc.) 0.5 A/700 V, 6.35-32 mm dia.
When sending the product for repair, pack the product carefully so that it will not be damaged during shipment, and include a detailed written description of the problem. Hioki cannot be responsible for damage that occurs during shipment. _______________________________________________ Chapter 6 Maintenance and Service...
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HIOKI 3805 DIGITAL HiTESTER Instruction Manual Publication date: September 2006 Revised edition 8 Edited an d published by HIOKI E.E. CORPORATION Technical Sales Support Section All inquiries to International Sales an d Marketing Department 81 Koizumi, Ueda, Nagano, 386-1192, J a p a n T E L: +81-268-28-0562 / FAX: +81-268-28-0568 E-mail: os-com@hioki.co.jp...
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HEAD OFFICE 81 Koizumi, Ueda, Nagano 386-1192, Japan TEL +81-268-28-0562 / FAX +81-268-28-0568 E-mail: os-com@hioki.co.jp URL http: //www.hioki.co.jp/ HIOKI USA CORPORATION 6 Corporate Drive, Cranbury, NJ 08512, USA TEL +1-609-409-9109 / FAX +1-609-409-9108 3805A980-08 06-09H Printed on recycled paper...
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