Hioki 3286 Instruction Manual
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Hioki 3286 Instruction Manual

Hioki 3286 Instruction Manual

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INSTRUCTION MANUAL
3286
CLAMP ON
POWER HiTESTER

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  • Page 1 INSTRUCTION MANUAL 3286 CLAMP ON POWER HiTESTER...

  • Page 2: Table Of Contents

    Contents Introduction Shipping Check Safety Attentions During Use Organization of This Manual Chapter 1 Product Outline 1.1 Product Outline 1.2 Features 1.3 Parts and Functions 1.4 Flowchart of Key Operations 1.4.1 Current Measurements Mode 1.4.2 Harmonic Measurement 1.4.3 Change the Range Chapter 2 Measurement Procedure 2.1 Preparations...
  • Page 3 2.7 SLOW Mode 2.8 Recording Function 2.9 SETUP Function 2.10 Measurement Condition Save Function 36 2.11 Auto Power-Off Function 2.12 Battery Low Warning 2.13 Beep Tone 2.14 DATA OUTPUT Chapter 3 Specifications 3.1 Measurement Specifications 5 , 80% RH max.) 3.1.1 AC Current Measurement Specifications 3.1.2 AC Voltage Measurement Specifications 3.1.3 Specifications of Single-phase Power...
  • Page 4 We have tried to bring this manual as close to perfection as we could achieve. If perchance you find any unclear portions, mistakes, omissions, or the like, we would be most obliged if you could please notify us of them via any HIOKI agent, or directly. Introduction...

  • Page 5: Shipping Check

    If damage is evident, or if it fails to operate according to the specifications, contact your dealer or HIOKI representative. Check the 3286 Unit and the Supplied Accessories Main unit 3286 CLAMP ON POWER HiTESTER Supplied accessories...

  • Page 6: Safety

    Safety DANGER This equipment is designed according to IEC 61010 Safety Standards, and has been tested for safety prior to shipment. Incorrect measurement procedures could result in injury or death, as well as damage to the equipment. Please read this manual carefully and be sure that you understand its contents before using the equipment.
  • Page 7 The following symbols in this manual indicate the relative importance of cautions and warnings. Indicates that incorrect operation presents extreme danger of accident DANGER resulting in death or serious injury to the user. Indicates that incorrect operation presents significant danger of accident WARNING resulting in death or serious injury to the user.
  • Page 8 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 product. dgt. (resolution) The smallest displayable unit on a digital measuring product, i.e., the input value that causes the digital display to show a "1".
  • Page 9 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. Use of a lower category product in a higher category environment could result in a severe accident and must be carefully avoided.

  • Page 10: Attentions During Use

    Attentions During Use Follow these precautions to ensure safe operation and to obtain the full benefits of the various functions. DANGER To avoid short circuits and potentially life- threatening hazards, never attach the clamp to a circuit that operates at more than the maximum rated voltage / 600V, or over bare conductors.
  • Page 11 viii WARNING The clamp sensor and voltage cord should be connected to live lines after being connected to the unit. To prevent short-circuiting and electric shock, observe the following precautions: Do not short-circuit the two wires of a line with the clip of the voltage cord.
  • Page 12 CAUTION Avoid stepping on or pinching the cable, which could damage the cable insulation. Keep the cables well away from heat sources, as bare conductors could be exposed if the insulation melts. If the protective functions of the product are damaged, either remove it from service or mark it clearly so that others do not use it inadvertently.
  • Page 13 Before using the product 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. This product is designed for indoor use, and operates reliably from 0 to 40 .
  • Page 14 Using the product in such conditions could cause an electric shock. Replace the test leads and probes with the specified HIOKI Model 9635. Accurate measurement may be impossible in the presence of strong magnetic fields, such as near...

  • Page 15: Organization Of This Manual

    Organization of This Manual Chapter 1 Product Outline Explains the parts and functions of the unit. Chapter 2 Measurement Procedure Explains how to use the 3286 for measurement. Chapter 3 Specifications Lists the specifications of the 3286 CLAMP ON AC/DC HiTESTER. Chapter 4...

  • Page 16: Chapter 1 Product Outline

    Chapter 1 Product Outline 1.1 Product Outline The "3286 CLAMP ON POWER HiTESTER" is designed to provide multiple functions by adopting a single-chip microcomputer. At any desired point of a single-phase circuit or three-phase circuit, this unit enables the measurement of voltage, current,...

  • Page 17: Features

    1.2 Features A multi-function microcomputer The built-in microcomputer offers various functions in a compact form. Display of true rms values The true rms value conversion circuit allows accurate measurement of currents with distorted waveforms. Enables power measurement When both current and voltage are input simultaneously, the power factor, phase angle, reactive factor, as well as power can be measured, and phase detected.

  • Page 18: Parts And Functions

    1.3 Parts and Functions Top and Side View Chapter 1 Product Outline...
  • Page 19 POWER Used to turn power on/off Watt Used to select the display of active power, apparent power, or power factor for the 1φ P meter. Used to select the display of power factor, phase difference, or reactive factor for the 1φ PF meter. Used to select the display of active power, apparent power, power factor, phase difference, or reactive factor for the 3φ...
  • Page 20 (RANGE) key Selects voltage display mode. Pressing this key in voltage display mode resets the peak-hold value. Switches MAX/MIN display of effective value and peak value during REC. Enables the setting of a voltage range in range setup mode. Lowers the order in harmonic display mode. (RANGE) key Selects current display mode.
  • Page 21 10. Clamp sensor To measure current, open the top ends of the clamp sensor by gripping the lever 11. Then position the conductor to be measured at the center of the clamp sensor and firmly close the clamp sensor. 11. Lever Used to open and close the clamp sensor.
  • Page 22 17. Display (LCD) Display 1 Display 2 Display 3 Alternating Current (AC) cosφ φ φ φ Power factor sinφ φ φ φ Reactive factor Data hold function HOLD Data output DATA Three-Phase Reverse phase Normal phase Missing phase Auto power off function Slow Record function LEAD...
  • Page 23 Active power Apparent power Voltage Maximum value Minimum value Harmonic percentage %THD Total harmonic distortion ratio Frequency var (reactive power) Total harmonic distortion ratio-F (A distortion rate against the basic wave.) Total harmonic distortion ratio-R (A distortion rate toward the actual effective value.) Chapter 1 Product Outline...

  • Page 24: Flowchart Of Key Operations

    1.4 Flowchart of Key Operations 1.4.1 Current Measurements Mode A point of view: This shows the way of changing on Display 1 to 3. Display 1 Display 2, Display 3 1φ P LINE/HARM key 3φ 1φ 1φ HARM I HARM U 1φ...
  • Page 25 REC ON Watt key MAX, MIN MAX, MIN (Return to the power Ipeak indication with MAX, MIN MAX, MIN the Watt key) (Return to the power Upeak MAX, MIN MAX, MIN indication with the Watt key) MODE key Remaining MAX/MIN Elapsed time battery display...

  • Page 26: Harmonic Measurement

    1.4.2 Harmonic Measurement 1φ P LINE/HARM key 3φ 1φ 1φ HARM I HARM U 1φ PF MODE key THD-R THD-F Content 1st order 2nd-order - - - - 20th order 20th order 19th-order - - - - 1st order 1.4.3 Change the Range RANGE key Measurement RANGE...
  • Page 27 Chapter 1 Product Outline...

  • Page 28: Chapter 2 Measurement Procedure

    Chapter 2 Measurement Procedure 2.1 Preparations 1. Remove the rear cover and insert a battery. (Refer to "Chapter4 Battery Replacement".) 2. Press to turn the unit on. Verify that all POWER segments of the display light up briefly. The model name then appears on Display 1 and battery state on Display 3.

  • Page 29: Connections

    [To initialize the saved contents] Holding down the key when powering on RANGE initializes all the saved contents. (SETUP Function, measurement condition save Function) 2.2 Connections Before conducting measurement, check the connections. WARNING Due to the risk of electric shock, connect the yellow cord not used for measurement to the part to which the black cord connects to prevent the clip from accidentally touching anyone.
  • Page 30 [Single-Phase Two-Wire Circuit] Yellow Black Figure 1. Power Measurement on Single-Phase Two-Wire Circuit Chapter 2 Measurement Procedure...
  • Page 31 [Single-Phase Three-Wire Circuit] The power and power factor of a single-phase three- wire circuit are measured similar to measurement on a single-phase two-wire circuit. Connect the black cord to the neutral wire as shown in Figure 2, then switch the red cord and clamp sensor to the respective wires.
  • Page 32 [Three-Phase Four-Wire Circuit] Use another method of the power measurement of the figure 4 for the distortion wave. Black Yellow Figure 3. Power and power factor measurement on Three-Phase Three-Wire Circuit 1φP, P Yellow Black Yellow Black 1φP, P Three-phase effective power P=P Figure 4.
  • Page 33 [Three-Phase Four-Wire Circuit] The power and power factor of a three-phase four- wire circuit are measured similar to measurement on a three-phase three-wire circuit (provided the load is balanced). No neutral wire is used for this measurement, however. In case of unbalanced load, measurement is conducted similar to measurement on a single-phase two-wire circuit.
  • Page 34 [Current measurement] Figure 6. Current measurement When only measuring current, the orientation of the clamp sensor is irrelevant. Moreover, the voltage cord need not be connected to the unit. [Voltage measurement] Yellow Black Figure 7. Voltage measurement When only measuring voltage, the clamp sensor need not be clamped.

  • Page 35: Range Setup

    2.3 Range Setup 1. Press the key. The voltage range then RANGE appears on Display 2 and current range on Display 3. In this condition, Display 2 and Display 3 should be blinking. 2. To change the voltage range, press the key.

  • Page 36: Power Measurement

    Table 2. Range Composition for Three-Phase Power Measurement Voltage range 150.0V 300.0V 600V Current 200.0A 60.00k 60.00k 240.0k 120.0k range 1000A 300.0k 600.0k 600.0k 1200k Unit [W] or [VA] or [var] 3. After changing the range, press the key. RANGE Display 2 and Display 3 then restore the measured values.

  • Page 37: 1Φ Φ Φ Φ P Meter, 1Φ Φ Φ Φ Pf Meter And 3Φ Φ Φ Φ Pf Meter

    2.4.1 1φ φ φ φ P Meter, 1φ φ φ φ PF Meter and 3φ φ φ φ PF Meter [1φ P Meter] Displays active power P once about every second (once about every three seconds in SLOW mode). The meter calculates apparent power S, reactive power Q, and power factor COS φ...
  • Page 38 [Difference in λ between 1φ P Meter and 1φ PF Meter] For distorted waveforms, the value of power factor λ may differ between the 1φ P meter and 1φ PF meter. The difference is due to the fact that the 1φ P meter calculates λ...
  • Page 39 1φP, P Yellow Black Yellow Black 1φP, P Three-phase effective power P=P Measurement example P (1φ P) S (1φ P) -0.54 kW 2.61 kVA 1.98 kW 2.57 kVA Three-phase effective power P=P1+P2=-0.54+1.98=1.44 kW Three-phase apparent power S=( )/2 (2.61+2.57)=4.49 kVA Power factor λ=P/S=1.44/4.49=0.321 Chapter 2...

  • Page 40: Power And Power Factor

    Table 3. Items Displayed (Marked OK) and Not Displayed (-) 1φ P 1φ PF 3φ PF Current I Voltage U Effective power P Apparent power S Reactive power Q Power factor λ (COSφ) Phase angle φ Reactive factor SINφ 2.4.2 Power and Power Factor WARNING Due to the risk of electric shock, connect the yellow cord not used for measurement to the...
  • Page 41 2. Connect the voltage cord to the unit, then connect the red cord, black cord, and yellow cord to the circuit under measurement according to prescribed connections. For a three-phase circuit, the unit will display the results of phase detection as follows: Normal phase Reverse phase Missing phase...

  • Page 42: Phase Detection

    5. Pressing the key in active power or MODE apparent power display mode indicates reactive power. Pressing the key again restores the MODE current and voltage display. U, I vAr, Q U, I vAr, Q 6. Switch between Auto Range and Manual Range, as needed.

  • Page 43: Current

    2.4.4 Current 1. Press the key to activate current display mode. In current display mode, the unit will indicate an effective value on Display 1, peak hold value on Display 2, and frequency on Display 3. 2. Switch between Auto Range and Manual Range, as needed.

  • Page 44: Voltage

    Automatic frequency detection (AUTO), 50 Hz NOTE fixed, or 60 Hz fixed can be selected. In cases where the input fluctuates significantly, the indicated value will stabilize when 50 Hz or 60 Hz fixed is selected. For how to select, see the setup of measurement line frequency in SETUP mode.

  • Page 45: Harmonic Measurement

    For measurement extending the auto power-off time, NOTE use the recording function. To check variations in a peak value, enable the REC function by pressing the key, then MAX/MIN activate peak value display mode by pressing the key. Automatic frequency detection (AUTO), 50 Hz fixed, or 60 Hz fixed can be selected.
  • Page 46 5. Switch between the total harmonic distortion ratio (THD-R, THD-F) and harmonic percentage from one to another, as needed, by pressing the MODE key. MODE key THD-R THD-F Content Be sure to clamp one conductor only. Measurement NOTE is not possible for single phase or three phases when two or three conductors are respectively clamped at the same time.

  • Page 47: Voltage Harmonics

    2.5.2 Voltage Harmonics 1. Press the key to activate harmonic LINE/HARM voltage display mode. 1φ P 3φ 1φ 1φ HARM I HARM U 1φ PF 2. Connect the voltage cord to the unit, then connect the red cord and black cord to the circuit under measurement.

  • Page 48: Data Hold Function Hold

    2.6 Data Hold Function HOLD This function freezes the counter at any desired point for easy reading. Press the key. annunciator lights on HOLD HOLD the display and the digital display value is maintained. The data hold function is available for all measurements.
  • Page 49 3. Pressing the key while using the recording MODE function lets you check the elapsed time and remaining battery capacity. Remaining MAX/MIN Elapsed time battery display display capacity display In elapsed time display, the unit indicates hours on Display 2 and minutes on Display 3. When elapsed time is displayed with MAX or MIN blinking, a negative value is denoted.

  • Page 50: Setup Function

    2.9 SETUP Function The settings for this unit are made in SETUP mode. In SETUP mode, you can make settings for measurements, display, and ancillary functions. 1. Hold down the key while powering on the SET1 unit by pressing the key.

  • Page 51: Measurement Condition Save Function

    (2) Setup of measurement line frequency Item No. 1-02 AUTO Automatically detects measurement line frequency. 50 Hz Sets measurement line frequency to 50 Hz. 60 Hz Sets measurement line frequency to 60 Hz. (3) Setup of display update rate Item No. 1-03 (SAMP) NORM Sets display update to normal rate (1 s).

  • Page 52: Auto Power-Off Function

    3. To return the saved measurement conditions to their initial values, hold down the key at unit HOLD power-on. After the entire LCD goes on, the unit will display " ", and the saved contents of measurement conditions are returned to their initial values.

  • Page 53: Data Output

    2.14 DATA OUTPUT The 3286 is connected to the printer or the PC by using optional 9636 or 9636-01 respectively. See the instruction manual of the 9636 or the 9636-01 for the setup. Chapter 2 Measurement Procedure...

  • Page 54: Chapter 3 Specifications

    Chapter 3 Specifications 3.1 Measurement Specifications 5 , 80% RH max.) 3.1.1 AC Current Measurement Specifications Maximum permissible 1000 Arms continuous current Effect of conductor within 0.7% (in any position from position sensor center) External magnetic field AC 400 A/m (external magnetic fields) interference corresponds to 2.0 A or less (display) Voltage in measured...

  • Page 55: Ac Voltage Measurement Specifications

    AC current (wave peak value) I PEAK Accuracy Range Resolution (Accuracy Range) 30Hz to 1kHz 200A 3.0%rdg. 5dgt. (10.0Arms to 200.0Arms) 1000A 3.0%rdg. 5dgt. (100Arms to 1000Arms) 3.1.2 AC Voltage Measurement Specifications AC voltage (true rms) U Accuracy Range 30Hz to 45Hz, Resolution (Accuracy Range) 45Hz to 66Hz...

  • Page 56: Specifications Of Single-Phase Power

    3.1.3 Specifications of Single-phase Power Measurement 1φ φ φ φ P Meter Measurement Single phase, 50/60 Hz condition Measurement range Effective measurement current range: 10 A to 1000 A Effective measurement voltage range: 80 V to 600 V Out of range If either the current (line current) range or voltage (line voltage) range is out of range, power measurement will also be...

  • Page 57: Specifications Of Power Factor

    3.1.4 Specifications of Power Factor and Phase Angle Measurements 1φ φ φ φ PF Meter and 3φ φ φ φ PF Meter Measurement Singe phase/balanced three phases, conditions 50/60 Hz, sine wave Measurement range Effective measurement current range: 10 A to 1000 A Effective measurement voltage range: 80 V to 600 V Phase angle measurement φ...

  • Page 58: Specifications Of Balanced Three-Phase

    3.1.5 Specifications of Balanced Three-phase Power Measurements Active and apparent power measurements Measurement Balanced three phases, 50/60 Hz, sine conditions wave Method of Active power calculated from apparent measurement power and phase angle information. Measurement range (Active power P/Apparent power S) Current Current (Line Current) Range 200.0A 1000A...

  • Page 59: Specifications Of Frequency Measurement

    3.1.6 Specifications of Frequency Measurement Measurement ranges (For current measurement/voltage measurement) Range Resolution Accuracy (Accuracy Range) 100.0Hz 0.1Hz 0.3%rdg. 1dgt. (30.0Hz to 100.0Hz) 1000Hz 1.0%rdg. 1dgt. (100Hz to 1000Hz) Minimum input Current: 10.0 Arms, Voltage: 10.0 Vrms 3.1.7 Specifications of Harmonic Measurement Measurement Fundamental wave frequency: 50/60 Hz condition...

  • Page 60: General Specifications

    Measurement accuracy Harmonic levels Order Accuracy 3.0%rdg. 10dgt. 2 to 6 3.5%rdg. 10dgt. 7 to 8 4.5%rdg. 10dgt. 9 to 10 5.0%rdg. 10dgt. 11 to 15 7.0%rdg. 10dgt. 16 to 20 10%rdg. 10dgt. Harmonic 1 dgt. with respect to calculation from percentage each measured value.
  • Page 61 Auto power-off Automatic shutdown after 10.5 minutes. Beep tone warning before the shutdown. Extending and disabling possible. Battery low voltage When the battery voltage falls below a power-off certain level, the function shuts down the unit to prevent malfunctions. Beep tone ON/OFF Display LCD panel...
  • Page 62 Location for use Indoor, altitude up to 2000 m (6562 feet) Applicable standards Safety: EN 61010-1:1992+A2:1995 CAT III (expected transient overvoltage: 6000 V), Pollution level 2, EN 61010-2-031:1994 EN 61010-2-032:1995 EN 60529:1991 IP40 (protected against access to hazardous parts with a wire) EMC: EN 61326-1:1997+A1:1998 φ...
  • Page 63 Accessories 9355 CARRYING CASE 9635 VOLTAGE CORD Hand Strap 6LF22 (battery) Instruction manual Options 9636 RS-232C CABLE 9636-01 RS-232C PACKAGE 9442 PRINTER (DPU-414, Seiko Instrument Inc.) 3.3 Operation Expressions General operation expressions Operation Function Item Symbol Expression Current Current measurement (Effective [Arms] value)
  • Page 64 Operation Function Item Symbol Expression λ Single-phase power 1φ power cosφ factor and phase factor angle measurements 1φ reactive sinφ 1φ PF meter (Sine factor wave, 50/60 Hz) λ(3φ) Balanced three- 3φ power For line current I phase power factor, factor lags U phase angle, and...
  • Page 65 Harmonic operation expressions Operation Item Symbol Expression Harmonic Effective value current [Arms] k-th harmonic content Overall harmonic THD-F distortion factor THD- R Harmonic Effective value voltage [Vrms] k-th harmonic content Overall harmonic THD-F distortion factor THD- R Remarks: Harmonic order Chapter 3 Specifications...

  • Page 66: Chapter 4 Battery Replacement

    Chapter 4 Battery Replacement WARNING To avoid electric shock when replacing the battery, first disconnect the voltage cable or clamp from the object to be measured. After replacing the battery, always replace the cover and tighten the screw before using the unit. When replacing the battery, be sure to insert them with the correct polarity.
  • Page 67 CAUTION Do not use the product if the battery is exhausted (when the mark lights in the display area). Be sure to replace the exhausted battery with a new one. When replacing the battery, make sure that the metal battery snap fitting is firmly connected. If the metal fitting is loose, adjust it and recheck the connection.

  • Page 68: Chapter 5 Attaching The Hand Strap

    Chapter 5 Attaching The Hand Strap Explains how to attach the hand strap, for easy handling of the unit in the field. Chapter 5 Attaching The Hand Strap...
  • Page 69 Chapter 5 Attaching The Hand Strap...

  • Page 70: Chapter 6 Troubleshooting

    Chapter 6 Troubleshooting If the unit seems not to be working normally, check the following points first before requesting service. Symptom Battery Battery clip Voltage cable Unit does not come indication appears and unit immediately turns off. indication appears. Unit turns off during use.* Voltage cannot be measured.
  • Page 71 Symptom Confirmation item. and etc. Cannot be measured. (1φ PF meter, 3φ PF meter) "- - - -" will be Confirm the direction of the clamp sensor, and displayed. connections of the voltage cable. Becomes fixed. (Frequency measurement) Check the waveform. Some special frequencies can't be measured, such as those of inverters.

  • Page 72: Chapter 7 Service

    If the unit is not functioning properly, check the battery. If a problem is found, contact your dealer or HIOKI representative. Pack the unit carefully so that it will not be damaged during transport, and write a detailed description of the problem. HIOKI cannot bear any responsibility for damage that occurs during shipment.
  • Page 73 Chapter 7 Service...

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