Hioki 3280-10 User Manual

3280-10

CLAMP ON HiTESTER

Instruction Manual

September 2013 Revised edition 7 Printed in Japan

3280C981-07 13-09H

Warranty

Warranty malfunctions occurring under conditions of normal use in conformity with the Instruction Manual and Product Precautionary Markings 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 distributor from which you purchased the product for further information on warranty provisions.

Introduction

Thank you for purchasing the HIOKI Model 3280-10 CLAMP ON HiTESTER. To obtain maximum performance from the instrument, please read this manual first, and keep it handy for future reference.

Initial Inspection

When you receive the instrument, 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.

Overview

The 3280-10 is a clamp-on AC meter using an average value type measurement formula. (It also contains multi-meter functions for AC voltage,

DC voltage, resistance and continuity checking.) The 3280-10 handles measurements of low-distortion load current of commercial line, up to maximum 1000 A.

Safety

This manual contains information and warnings essential for safe operation of the instrument and for maintaining it in safe operating condition. Before using it, be sure to carefully read the following safety precautions.

This instrument is designed to comply with 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 instrument. However, using the instrument in a way not described in this manual may negate the provided safety features.

Be certain that you understand the instructions and precautions in the manual before use. We disclaim any responsibility for accidents or injuries not resulting directly from instrument defects.

Safety Symbols

In the manual, the symbol indicates particularly important information that the user should read before using the instrument.

The 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.

Indicates that the instrument may be connected to or disconnected from a live circuit.

Indicates a double-insulated device.

Indicates a grounding terminal.

Indicates DC (Direct Current). Indicates AC (Alternating Current).

Indicates both DC (Direct Current) and AC (Alternating Current).

Symbols for Various Standards

This symbol indicates that the product conforms to safety regulations set out by the EC Directive.

The following symbols in this manual indicate the relative importance of cautions and warnings.

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

Indicates that incorrect operation presents a significant hazard 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 instrument.

Indicates advisory items related to performance or correct operation of the instrument.

Measurement categories

The current input section conforms to CAT III (600 V) safety requirements, and the voltage input section confirms to CAT III (300 V), CAT II (600 V) safety requirements.

To ensure safe operation of measurement instruments, IEC 61010 establishes safety standards for various electrical environments, categorized 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, household appliances, etc.) CAT II covers directly measuring electrical outlet receptacles.

CAT III Primary electrical circuits of heavy equipment (fixed installations) connected directly to the distribution 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 instrument in an environment designated with a highernumbered 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.

Usage Notes

Follow these precautions to ensure safe operation and to obtain the full benefits of the various functions.

Before using the instrument the first time, verify that it operates normally to ensure that no damage occurred during storage or shipping. If you find any damage, contact your dealer or Hioki representative.

To avoid electric shock, do not touch the portion beyond the protective barrier during use.

•During current measurement, to avoid an electric shock accident, do not connect the test leads to the instrument.

•To avoid electric shock when measuring live lines, wear appropriate protective gear, such as insulated rubber gloves, boots and a safety helmet.

•Check that there is no damage to the clamp sensor, instrument case, and test leads before using. Do not use if there is any damage as it could lead to electric shock.

Avoid the following locations that could cause an accident or damage to the instrument.

Exposed to direct sunlight Exposed to high temperature

Exposed to water, oil, other chemicals, or solvents Exposed to high humidity or condensation

Exposed to high levels of particulate dust

Subject to vibration

In the presence of corrosive or explosive gases

Exposed to strong electromagnetic fields Near electromagnetic radiators

Near induction heating systems (e.g., highfrequency induction heating systems and IH cooking utensils)

Names and Functions of Parts

Front

Sleeves

Clamp sensor

Barrier

Operation grip

LCD panel

(Display: Measurement value, Units, Symbols, Decimal point)

,

SAMP. F/S key Function switch

Measurement terminal

Test lead plug

Red test lead (+)

Black test lead (-)

Operation grip

HOLD key

*Battery cover (rear side)

Operation grip

The clamp sensor at the same side as the pushed grip opens.

Function

Switching for OFF/AC current [~A] /AC voltage [~V]/DC volt-

switch

age [

V]/Resistance, Continuity check [ /

]

(Power is turned on in any position other than OFF.)

Connect the test lead plug to the measurement terminal of the

Test lead plug

instrument for voltage measurement, resistance measurement

or continuity testing.

n For any function of [~A],[~V],[

V]:

Display update rate (FAST or SLOW) is switchable

If an indicated value fluctuates rapidly and is difficult to read,

a slower display update rate is available to make it easier to

read the indicated value.

SAMP. F/S

key

(SLOW: about once every three seconds, unit on the LCD

panel flashes at the same time.)

n For [ /

] function:

Resistance [ ] or Continuity test [

] is switchable

HOLD key

When press HOLD key,

appears in the display and the

digital display value is maintained. Press HOLD key again to

cancel the data HOLD function.

Functions and Display

The display is blanked automatically. (Auto Power Save Function)

•The auto power save function is activated automatically when the power is turned on. (Not possible to cancel)

•If no key is pressed for about 30 minutes, the display is blanked automatically. (Power save state)

•To restore from the power save state, turn the function switch to the OFF position once.

The measurement range is automatically set to the most appropriate range.(Auto-range Function)

•Except for continuity test, the measurement range is automatically set to the most appropriate range.

•The "AUTO" indication appears in the display.

A manual range setting becomes available. (Manual Range Function)

• Power on the tester while holding down ,SAMP. F/S key or HOLD key, then a manual range setting becomes available except when testing continuity. Either display update rate is selectable by the keys.

(,SAMP. F/S key: SLOW, HOLD keys: FAST)

•Press the , SAMP. F/S key to switch the range.

•The "AUTO" indication disappears.

Indication when the input is out of range. (Overflow indication)

• When the input exceeds the measurement range, "OF" or "-OF" is displayed.

Specifications

	LCD panel	4199 maximum display value
	Out of range	OF or -OF
	indication
	Battery low		(during which time accuracy cannot be guaranteed).
	warning
	Data hold
	indication
	Zero	5 count or less (current measurement only)
	suppression
	Display update	FAST: 400 ms ±25 ms, SLOW: 3.2 s ±0.2 s
	interval
	Range	Auto range / Manual range
	switching
	Withstand	Between case and circuit: AC4290 Vrms for 1 min.
		Between clamp sensor and case: AC7060 Vrms for 1 min.
	voltage
		Between clamp sensor and circuit: AC5400 Vrms for 1 min.
	Location of use	Altitude up to 2000 m (6562 feet), indoors, Pollution Degree 2
	Maximum
	conductor	33 mm (1.30") or less
	diameter for
	measurement
	Operating	0 to 40 C (32 to 104 F), 80%RH max (no condensation)
	temperature
	and humidity
	Storage	-10 to 50 C (14 to 122 F) (no condensation)
	temperature
	Temperature	In 0 to 40 C (32 to 104 F) range: 0.1 x Measurement
	characteristics	accuracy / ( C)
	Power supply	Lithium battery: CR2032 x 1 (Rated supply voltage 3 V DC)
	Maximum rated	15 mVA
	power
	Continuous	Approx. 150 hours (standard), Approx. 80 hours min. (in AC
	operating time	current measurement mode, continuous, no load)
	Dimensions and	Approx. 57W x 175H x 16D mm, approx. 100 g
	mass	(Approx. 2.24"W x 6.89"H x 0.63"D, approx. 3.5 oz.)
	Drop proof	One meter to concrete
	Accessories	Instruction manual, 9398 Carrying Case, L9208 Test Leads
		Current measurement section:
	Maximum rated	Measurement category CAT III 600 V
		(anticipated transient overvoltage 6000 V)
	voltage to earth	Voltage measurement section:
		Measurement Category CAT III 300 V, CAT II 600 V
		(anticipated transient overvoltage 4000 V)
	Applicable	Safety		:EN61010
	standards	EMC		:EN61326

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