Seaward TYPE L PLUS Manual de usuario

TYPE LPLUS

Large Jaw Current Clamp

Meter

Operating Instructions

Bracken Hill, South West Industrial Estate,

Peterlee, Co. Durham. SR8 2SW. England.

Tel: +44 (0)191 586 3511 Fax: +44 (0)191 586 0227

www.seaward.co.uk

sales@seaward.co.uk

[email protected]

TYPEL PLUS OperatingInstructions

Limited Warranty& Limitation of Liability

SEAWARDElectronicLimitedguaranteesthisproductfor a

period of 1year. The period of warranty will be effective at the

day of delivery.

multiplied, or made public in anyformor manner, either

electronically, mechanically, by photocopying, recording, or in

any manner,without prior written consent fromSEAWARD

Electronic Limited. This also applies to accompanying

drawings and diagrams.

Due to apolicy ofcontinuousdevelopment SEAWARD

Electronic Limited reserves the right to alter the equipment

specification and description outlined in thispublication

without prior notice and no partof this publication shall be

deemed to be part of any contractfor the equipmentunless

specifically referred to asan inclusion within such contract.

TYPEL PLUS OperatingInstructions

Disposalof Old Product

This producthas been designed and manufactured with high

quality materials and components that can berecycledand

reused.

When the crossed out wheelie binsymbol is attached toa

product itmeanstheproduct iscovered bythe European

Directive 2002/96/EC.

Pleasefamiliarise yourself with the appropriate local separate

collection systemfor electrical and electronic products.

Pleasedispose of this product according to local regulations.

Do not dispose of this product along with normal waste

material. Thecorrectdisposal of this product willhelp prevent

potential negative consequences for the environment and

human health.

TYPEL PLUS OperatingInstructions

Operating Instructions

Type L Plus Current Clamp Meter

The SeawardType LPlus current clampmeteris aprecision

instrument designed tomeasure ACcurrents flowing through

conductors that are placed within the jaws of the instrument.

The technology utilised in the TypeLPlus provides anumber

of advantages including, complete linearityover the

measurement range 0 2000 amps, significant reductionsin

weight and a very high level of electrical protection.

Contents

1. User Notes

2. SafetyNotes

3. Description

4. ElectricalSpecifications

5. Operation

6. BatteryInstallation andReplacement

7. Maintenance

8. Cleaning

1.0 User Notes

These operating instructions are intended forthe use of

competent personnel.

The Type LPlus current clamp has been designed to make

measurements in a dryenvironment.

The followingsymbols are usedin these operating instructions

and on the Type L Plus instrument.

Warning of electrical danger!

Indicates instructions must be followed to avoid danger

to persons.

Important, followthe documentation!

This symbolindicates that theoperating instructions

must be adhered to in order to avoid danger.

TYPEL PLUS OperatingInstructions

2.0 SafetyNotes

The Type LPlus currentclampmeter has left the factory ina

perfectly safe state. Tomaintain this state andensure safe

operation ofthe unit,all notesand warnings in these

instructions must be observed at all times.

The Type L Plus current clamp meter maybe safely

appliedto un-insulatedconductors up to 600volts,

provided allnecessarycare istaken to avoidthe

operator’s bodyor hands moving indangerous

proximitywith the conductor.

The Type LPlus current clampmeter must be

checked forsigns of damage before the equipment

is operated.

Where safeoperation of the Type LPlus currentclampmeteris

no longer possible it should be immediatelyshutdownand

secured to prevent accidental operation.

It must be assumed thatsafe operation is no longer possible:

-if the Type L Plus showsvisible signs of damage, or

-the Type L Plus does not function, or

-after long periods of storage under adverse

environmental conditions.

TYPEL PLUS OperatingInstructions

3.0 Description

The Type LPlus current clampmeter iscomprised of the

following features:-

3.1 The movablejawsallowthe current flowing through a

conductor tobe measured using precision air core

current sensor technology toaccurately measure

conductor current flow, in the range 0 2000 amps.

3.2 The movablejawsaccept allconductor sizesup to

100mm in diameter.

3.3 The housinghas been designed in such away as to

minimise theuse of metallic components aiding safe

working practices.

3.4 Current readings between 0and2000 amps are

indicated on a3.5”LCD display module with 12mm high

characters.

3.5 Three fully sealed membranetype tactile response

pushbuttons allowan operator to switch the Type LPlus

Off and select between Store (optional) and Track

modes.

3.6 The operatorpressing either the Track or Store mode

buttons will automaticallyswitch the instrument on and

default tocontinuous or peak reading mode

respectively.

3.7 Store Mode allowsthe displayto store the peak

reading of the R.M.S. current monitored in aconductor

over any given time.

3.8 Track Mode allowsthe display to continuously display

the measured current.

3.9 The Type LPlus powersupply isgeneratedfroma

replaceable internal 9VDC battery.

3.10 The Type LPlus handleallowstheoperator tosafely

open and close the jaws of the current clamp meter.

TYPEL PLUS OperatingInstructions

4.0 ElectricalSpecifications

Display3.5 digit LCD 12mm high characters

Measurement range 0 2000 Amps

Accuracy ±3% ±1digits f.s.d. onall ranges,

with conductor positioned centre of

jaws.

Voltage 50 600 volts AC 50 Hz

Operating Temperature 0 ºC to +40 ºC

Storage Temperature -20 ºC to +50 ºC

Battery9VDC Alkaline MN1604 6LR61

5.0 Operation

5.1 Track Mode

5.1.1 Press and release the Trackbutton on the Type LPlus

control panel. The LCDdisplaywill indicatethree

zeroes, signifying no current flowdetected. If the BAT

symbol appears in the top left corner of the LCDdisplay

then the battery within the unit must be replaced (see

section 6).

5.1.2 Operate thetrigger mechanismon the Type LPlus

handle to pivot open the jawsof the instrument and

insert the conductor to be tested within them.

It isnot necessaryfor the jawsof aTypeLPlus

current clamp meterto becompletely closed,

however formaximum accuracythe tips of the jaws

should be in contact with one another.

For maximum accuracy,the conductor under test

shouldbe positioned inthe centreof the internaljaw

area.

5.1.3 The AC current flowing throughthe conductor is

recordedon the LCD displayand is continuously

updated to reflect any changes in theconductor current.

If the batterysymbolisvisibleonthe LCD display

then the current reading must be assumed to be

incorrectsince the batteryrequires replacing.

TYPEL PLUS OperatingInstructions

5.1.4 Press the Offbutton on the Type LPlus control panel to

switch the instrument off.

5.2 Store Mode

5.2.1 Press and release the Store button on the Type LPlus

control panel to record the peakcurrent flowthrough a

conductor over any length of timeperiod. Ifabattery

symbol appears on theLCD displaythen the battery

within the unit must be replaced (seesection 6).

Care shouldbe taken toavoidexternalconductors,

other than the ones being tested, being positioned

too close tothe LCD display.

5.2.2 The sensitivity of the Type LPlus is such that any

current readings displayed on the LCD require that

current to beflowing through the conductor for aperiod

of 1to 2seconds. No current readings will be recorded

for short termtransientvariations.

If the batterysymbolisvisibleonthe LCD display

then the current reading must be assumed to be

incorrectsince the batteryrequires replacing.

5.2.3 Once testingis complete press the Off button to switch

the Type L Plus off.

The Type LPlus isnot designed for use inareas of

high electromagnetic or electrostatic fields.

6.0 BatteryInstallation andReplacement

ABAT symbolinthe top left corner of the LCD

displaydenotes that the batteryrequires charging.

6.1 Accessto the battery compartmentin aTypeLPlus is

by removing the retaining screwthrough thebattery

cover on therear of the instrument.

6.2 Disconnect the battery fromthe internal connector then

replacewithaliketype of battery, 9VDC Alkaline

MN1604 6LR61.

TYPEL PLUS OperatingInstructions

6.3 Ensure the newbatteryis firmly fitted into the internal

connector and with the right polarity.

6.4 Replace the battery coverand insert the retaining screw

taking care to avoid over tightening.

7.0 Maintenance

7.1 The Type LPlus is extremely robustbut should always

be kept freefromdust and any excessive temperature

variations avoided.

7.2 Ensure the Type LPlusis kept dry with no surface

moisture oneitherthebody or the housing of the LCD

display.

7.3 The body of the Type LPlus should be regularly

inspected toensure nodeepscratchesor physical

damage.

7.4 If any of theabove conditions have been observed then

the Type LPlus must be appropriatelysecured to

prevent any further use.

8.0 Cleaning

8.1 Clean theexternal caseof the TypeLPlus withaclean

dry cloth.

8.2 Never applylubricants tothe pivot action of the Type L

Plus.

8.3 Avoid using solvents and abrasive scouring agents to

clean the external case of the Type L Plus.

8.3 Checkthebatterycontacts andmounting compartment

within theType LPlus arefree of electrolytic

contamination.

8.4 Any contamination ofthe battery contacts or

compartment should becleaned with a dry cloth.

275A550 Rev 2

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