Hioki 3246-60 - Pencil Hitester Manual

Introduction

To obtain maximum performance from the product, please read this manual first, and keep it handy for future reference.

Overview

The 3246-60 is a pencil-shaped digital multimeter designed to measure DC/AC voltage and resistance, and conduct continuity and diode checks. Compact, safe, and easy to use, the 3246-60 meets all CATIV 300 V, CATIII 600 V safety requirements. Probe leads are wound around the protrusions on the rear. The unit also features a built-in light to illuminate the object to be measured.

Initial Inspection

When you receive the product, inspect it carefully to ensure that no damage occurred during shipping. If damage is evident, or if it fails to operate according to the specifications, contact your dealer or Hioki representative.

Preliminary Checks

• Before using the product the first time, verify that it operates normally to ensure that the no damage occurred during stor- age or shipping. If you find any damage, contact your dealer or Hioki representative.
• To prevent an electric shock accident, confirm that the white or red portion (insulation layer) inside the cable is not exposed. If a color inside the cable is exposed, do not use the cable. Using the product in such conditions could cause an electric shock, so contact your dealer or Hioki representative for repair.

Maintenance and Service

• To clean the product, wipe it gently with a soft cloth moist- ened with water or mild detergent. Never use solvents such as benzene, alcohol, acetone, ether, ketones, thinners or gasoline, as they can deform and discolor the case.
• If the product seems to be malfunctioning, confirm that the batteries are not discharged, and contact your dealer or Hioki representative.

Safety

Measurement categories
This product complies with CAT IV (300 V), CAT III (600 V), CAT II (600 V) safety requirements.
To ensure safe operation of measurement products, IEC 61010 estab- lishes safety standards for various electrical environments, catego- rized as CAT II to CAT IV, and called measurement categories.

CAT II: Primary electrical circuits in equipment connected to an AC electrical outlet by a power cord (portable tools, house- hold appliances, etc.) CAT II covers directly measuring electrical outlet receptacles.
CAT III:Primary electrical circuits of heavy equipment (fixed installations) connected directly to the dis- tribution panel, and feeders from the distribution panel to outlets.
CAT IV:The circuit from the service drop to the service entrance, and to the power meter and primary overcurrent protection device (distribution panel).
Using a measurement instrumentin an environment designated with a higher-numbered category than that for which the instrument is rated could result in a severe accident, and must be carefully avoided.
Use of a measurement instrument that is not CAT-rated in CAT II to CAT IV measurement applications could result in a severe accident, and must be carefully avoided.

Safety Symbol

	In the manual, the symbol indicates particularly important information that the user should read before using the product. The symbol printed on the product indicates that the user should refer to a corresponding topic in the manual (marked with the symbol) before using the relevant function.
	Indicates a double-insulated device.
	Indicates AC (Alternating Current).
	Indicates DC (Direct Current).
	Indicates DC (Direct Current) or AC (Alternating Current).

Symbols for Various Standards

WEEE marking: This symbol indicates that the electrical and electronic appliance is put on the EU market after August 13, 2005, and producers of the Member States are required to display it on the appliance under Article 11.2 of Directive 2002/96/EC (WEEE).

Indicates that incorrect operation presents an extreme haz- ard that could result in serious injury or death to the user.

Indicates that incorrect operation presents a significant haz- ard that could result in serious injury or death to the user.
Indicates that incorrect operation presents a possibility of injury to the user or damage to the product.
NOTE: Advisory items related to performance or correct operation of the product.

Usage Notes

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 care- fully read the following safety notes.

• To avoid electric shock, do not allow the product to get wet, and do not use it when your hands are wet.
• Do not use the product where it may be exposed to corrosive or combustible gases. The product may be damaged or cause an explosion.
• To avoid electric shock when measuring live lines, wear appropriate protective gear, such as insulated rubber gloves, boots and a safety helmet.

• Do not store or use the product where it could be exposed to direct sunlight, high temperature or humidity, or condensation. Under such conditions, the product may be damaged and insulation may deteriorate so that it no longer meets specifications.
• This product is not designed to be entirely water- or dust-proof. To avoid damage, do not use it in a wet or dusty environment.
• This product is designed for indoor use, and operates reliably from 0°C to 40°C.
• To avoid damage to the product, protect it from vibration or shock during transport and handling, and be especially careful to avoid dropping.
• Do not use the product near a device that generates a strong electromagnetic field or electrostatic charge, as these may cause erroneous measurements.
• To avoid damaging the test leads, do not bend or pull the leads.
• 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.

NOTE

• Accurate measurement may be impossible in the presence of strong magnetic fields, such as near transformers and high- current conductors, or in the presence of strong electromag- netic fields such as near radio transmitters.
• To avoid battery depletion, turn the Function Selector OFF after use (the Auto Power Save feature consumes a small amount of current).
• The indicator appears when battery voltage becomes low. Replace the batteries as soon as possible.
• To avoid corrosion from battery leakage, remove the batteries from the product if it is to be stored for a long time.

Parts Names

HOLD Button

• Holds the measurement value ( lights up).
• Cancels the Auto-Power Save function (APS). (Turn on the power while pressing HOLD.)
• Turns on the light. (Press HOLD for at least 1 second.)

Select Button

• Selects DC/AC ( V)
  (Press the select button for at least 1 second in manual ranging mode.)
• Selects mode ().
  (Press the select button for at least 1 second in manual ranging mode.)
• Changes to the manual range func- tion. (Turn on the power while pressing the select button.)
• Selects range (in manual ranging mode)

Function Selector
OFF Power Off (Power is turned ON in any position other than OFF.)
V : DC voltage function (DCV) (Select with the select button)
: AC voltage function (ACV) (Select with the select button)
Resistance function (Select with the select button)
Continuity Check function (Select with the select button)
Diode Check function (Select with the select button)

LCD Display

Indicates Battery-Life Warning. (Accuracy is not guaranteed when the indicator is on.)

Handling the Sleeve of test lead

Removable sleeves can be attached to the metal pins at the ends of the test leads. To prevent a short circuit accident, be sure to use the test leads with the sleeves attached when performing measurements in the CAT III and CAT IV measurement categories. Remove the sleeves from the test leads when performing measurements in the CAT II measurement category. For details on measurement categories, see "Measurement categories") in the instruction manual.

• The tips of the metal pins are sharp, so take care not to injure yourself.
• When performing measurements with the sleeves attached, be careful to avoid damaging the sleeves.
• If the sleeves are inadvertently removed during measurement, be especially careful in handling the test leads to avoid electric shock.

Handling the Cap (yellow) of Pencil Hitester

Observe the following to avoid damage to the product.

• Do not pull the cap with excessive force.
• Replace the cap when not using the product.

When using the 3246, remove the cap and securely fasten the cap to the rear, as shown in the figure.
When removing the cap, be careful not to prick your finger with the tip of the lead.

Handling the Test Leads

When storing the 3246-60 test lead (black), be sure to wind the lead around the protrusion on the rear.

Specifications

General

Measurement Method	Dual integration
AC Measurement System	Average rectifying measurement
Function	DC voltage (DCV), AC voltage (ACV), Resistance (Ω), Continuity check(), Diode check() (Forward direction/Reversed direction judgment only)
Additional Function	Auto Range function, Manual Range function, Hold function, Auto Power Save function (APS), Battery-Life Warning function, Overflow Warning function, Penlight function, LCD Backlight function
Display Type	TN type LCD, 1/4 duty, dynamic drive
Display Elements	3(1/2) dgt., Max. 4199 counts (600 VAC/DC range: 699 counts) Polarity indicator: "–" sign (automatic) Overflow indicator: "OF" or "–OF"
Units and Symbols	(AC), (DC), , AUTO, HOLD, , , APS, M, k, m, V,
Range Switching	Auto/Manual range
Sampling Rate	2.5 S/s
Input Terminals	V/ Ω/ continuity/ diode terminal, COM terminal
Functions	OFF/ V/ Ω
Buttons	HOLD, (select)
Power Supply	Coin-shaped lithium battery CR2032 × 1
Battery-Life Warning	indicates low battery
Dimensions	Approx. 30W ×182H ×26.5D mm (without protrusions) (1.18"W × 7.17"H × 1.04"D) Cable length: Approx. 800 mm (31.50")
Mass	Approx.80 g (2.8 oz.)(including battery)
Operating Environment	Indoors, Pollution Degree 2, altitude up to 2000 m (6562-ft.)
Operating Temperature & Humidity	0 to 40°C (32 to 104°F), at 80%RH or less (non-condensating)
Storage Temperature & Humidity	-20 to 60°C (-4 to 140°F), at 70%RH or less (non-condensating)
Accessories	Instruction Manual Coin-shaped lithium battery (CR2032) x1 (supplied with this product for monitor), Sleeves (red and black 1 piece for each)
Product warranty period	3 years (excluding the measurement accuracy)
Standards Applying	Safety EN61010-2-033:2012 EN61010-031:2002+A1:2008 EMC EN61326-2-2:2013

Electrical Characteristics

Accuracy guarantee for temperature and humidity	23°C±5°C (73°F±9°F), 80%RH or less (non-condensating)
Regulated power supply range	2.15 V to 3.4 V (Battery low display is off)
Temperature Characteristic	(Measurement accuracy) × 0.1/°C (except 23°C±5°C)
Noise Suppression	NMRR DCV: 40dB or better (50/60 Hz) ACV: 40dB or better (DC) CMRR DCV:100dB or better (50/60 Hz) ACV: 60dB or better (50/60 Hz) (1kΩ Unbalance)
Dielectric Strength	Input terminals to case: 5.55 kVrms sin (50/60 Hz for one minute)
Maximum input Voltage	600 VDC/ 600 Vrms (sin) or 3 ×10 6 VHz
Maximum rated voltage to earth	When sleeve is installed: CAT IV (300 V) / CAT III (600 V) When sleeve is uninstalled: CAT II (600 V), (Anticipated Transient Overvoltage: 6000 V)
Rated Power Supply Voltage	3.0 VDC
Maximum Rated Power	30 mVA (Max) (supply voltage 3.0 VDC)
Rated Power	4 mVA (Typ) (supply voltage 3.0 VDC, in DCV mode)
Power during Auto Power Saving	0.1 mVA (Max)
Continuous Operating Time	Approx. 150 hours (in DCV mode) Approx. 30 hours (with light in repeating cycles of 10 seconds on and 20 seconds off, in DCV mode)

Accuracy
(Accuracy guaranteed for one year at 23°C±5°C (73°F±9°F), 80%RH or less.) Battery low display is off.

	Range	Accuracy	Input Impedance	Notes*1
DC Voltage Measurement ( DCV )	420.0 mV 4.200 V 42.00 V 420.0 V 600 V	±1.3%rdg.±4dgt.	100 MΩ or more Approx. 11 MΩ Approx. 10 MΩ Approx. 10 MΩ Approx. 10 MΩ
AC Voltage Measurement ( ACV )	4.200 V 42.00 V 420.0 V 600 V	±2.3%rdg.±8dgt.	Approx. 11 MΩ Approx. 10 MΩ Approx. 10 MΩ Approx. 10 MΩ	Measurement frequency range: 50 Hz to 500 Hz
	Range	Accuracy	Open terminal voltage	Notes*1
Resistance Measurement (Ω)	420.0 Ω 4.200 kΩ 42.00 kΩ 420.0 kΩ 4.200 MΩ 42.00 MΩ	±2.0%rdg.±4dgt. ±2.0%rdg.±4dgt. ±2.0%rdg.±4dgt. ±2.0%rdg.±4dgt. ±5.0%rdg.±4dgt. ±10.0%rdg.±4dgt.	3.4 V or less Approx. 0.7 V Approx. 0.5 V Approx. 0.5 V Approx. 0.5 V Approx. 0.5 V	Measurement current: 800 μA max. Varies according to resistance levels to be measured.
Continuity Check ()	420.0 Ω	±2.0%rdg.±4dgt. 3.4 V or less		Threshold level (beep sound): 50 Ω±40 Ω
Diode Check ()	Judgment only (0.3 V to 2.0 V)		3.4 V or less	Measurement current: 800 μA max.

*1:Overload protection is 600 V DC/AC rms (sine wave) or 3x10 (for 1 min.), for all functions and ranges.
dgt.: resolution (The smallest displayable unit, i.e., the input value that causes the digital display to show a "1".)
rdg.: reading value (The value currently being measured and indicated on the measuring product)

Functions

Auto/Manual Range Function ( V, only)
Autoranging: The Autoranging function automatically selects the opti- mum measurement range.
Turning on the power also switches Autoranging on (AUTO lights up). The range automatically switches up when the display shows 4200 counts or more, and down when the display shows less than 400 counts. (A beep sound is generated when the 3246-60 is switched to a different range.)
Manual ranging: Set a range manually.
Turn on the power while pressing the select button (AUTO is turned off). Range selection: Each pressing of the select button selects the next larger range. After the largest range, pressing the select button again returns you to the smallest range.
Press and hold down the select button (for about 1 second) to select AC or DC in manual ranging mode, or select between resistance mea- surement, continuity check, and diode check in manual ranging mode. The Manual ranging function is active until the 3246-60 is turned off.
Hold Function [ ] (Available for any measurement function.)
Press HOLD to hold the measurement value (lights up).
In hold mode, the select button operation, the warning beep for voltage measurement overflow, and beep for diode check judgment are disabled. To cancel the hold mode: Press HOLD again.
Auto Power Save Function [APS] (Available for any measurement function.)
When the measurement product is turned on, it automatically enters Auto Power Save mode (APS lights up).
Approximately 10 minutes after completing final operation, the mea- surement product automatically enters Power Save mode with a beep- ing sound.
Exiting the Power Save State: turn off the power once. Disabling Auto Power Saving: turn on the power while pressing
HOLD. (APS is turned off)

Overflow Warning Function [OF] ( V only)
When the measured value exceeds the maximum indication, a beep sound is generated (OF lights up). This function is disabled in hold mode.

Penlight/LCD Backlight Function

• ON: Press and hold down HOLD. The penlight and LCD backlight will light. (The hold mode is not influenced)
• OFF: The lights will go off automatically in about 10 seconds. Oper- ating the Function Selector or a key will turn off the lights in about 10 seconds after the last key operation.
• Hold down HOLD to keep the lights on.

Measurement Procedures

Observe the following precautions to avoid electric shock.

• Do not grip the 3246-60 or test lead between the barrier and the tip during operation ( See "Parts Names"
• Disconnect the test leads from the measurement object before handling the Cap.
• 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.
• Never apply voltage to test leads when the Resistance, Continuity or Diode 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.

Pre-Operation inspection
To avoid the possibility of electric shock or incorrect measure- ment, check the following items before using the product.
If the operation check reveals any abnormalities, stop the check immediately and do not use the product.

To prevent an electric shock accident, confirm that the white portion (insulation layer) inside the cable is not exposed. If a color inside the cable is exposed, do not use the cable. Using the instrument in such conditions could cause an electric shock, so contact your dealer or Hioki representative for repair.

• For voltage measurement, short the test leads and check that 0 V is displayed.
• For Measuring Resistance or Continuity Check, short the test leads and check that 0  is displayed.
• Measure a test item with a known value (battery, AC supply, resistor, etc.) to confirm that the known value can be displayed.

NOTE: Periodic calibration and inspection is necessary in order to ensure that this product operates according to its product spec- ifications.

Voltage Measurement

• The maximum input voltage is 600 V DC/ 600 Vrms (sin) or 3x10 6 V•Hz. Attempting to measure voltage in excess of the maximum rating 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.
• For safety, test lead connections must always be made at the secondary side of a circuit breaker.
• The maximum rated voltage between input terminals and ground is 600 V DC/AC. Attempting to measure voltages exceeding 600 V with respect to ground could damage the product and result in personal injury.

Resistance Measurement

Continuity Check

Diode Check

NOTE:
When the diode is connected in the forward direction, the dis- play shows "- 00 - " with a beeping sound.
(When the forward voltage is out of the 0.3 V to 2.0 V range, the results may be incorrect.)
When connection is reversed, the display shows "----."
If displays for both directions are the same, the following may have occurred:

• The diode has malfunctioned.
• The forward voltage of the diode is out of the measurement range.

Replacing the Batteries

Necessary tool:

• Phillips screwdriver
• Coin-shaped lithium battery (CR2032)

1. Turn OFF the power.
2. Turn the 3246-60 over and use a Phillips screwdriver to remove the one retaining screw from the battery case.
3. Remove the battery case and mount a new CR2032 battery. Make sure the polarity is correct.
4. Mount the battery case and tighten the retaining screw.

CALIFORNIA, USA ONLY ONLY
Perchlorate Material - special handling may apply.
See www.dtsc.ca.gov/hazardouswaste/perchlorate

Warranty

Warranty malfunctions occurring under conditions of normal use in con- formity with the Instruction Manual and Product Precautionary Mark- ings will be repaired free of charge. This warranty is valid for a period of three (3) years from the date of purchase. Please contact the dis- tributor from which you purchased the product for further information on warranty provisions.

All regional contact information
http://www.hioki.com
HEADQUARTERS
81 Koizumi
Ueda, Nagano 386-1192 Japan
HIOKI EUROPE GmbH
Rudolf-Diesel-Strasse 5
65760 Eschborn, Germany
hioki@hioki.eu

Edited and published by HIOKI E.E. CORPORATION

• CE declarations of conformity can be downloaded from our website.
• Contents subject to change without notice.
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