Circutor T-3V Manuel utilisateur

EARTH RESISTANCE TESTER

T-3V

(Code M80410)

INSTRUCTION MANUAL

( M98111001-03-04A )

CIRCUTOR S.A.

--------- EARTH RESISTANCE TESTER T-3V ------- Page No. 1

T-3V ANALYZER CONTENTS page No.

1.- GENERAL REMARKS.................................................................................................................. 2

1.1.- Description...................................................................................................................... 2

1.2.- Specifications ................................................................................................................ 3

2.- SAFETY ADVICE ....................................................................................................................... 4

3.- INSTRUCTIONS FOR USE.......................................................................................................... 5

3.1.- Description of the controls and the parts........................................................................ 5

3.2.- Use.................................................................................................................................. 6

4.- MAINTENANCE............................................................................................................................ 7

4.1.- Replacing the batteries ...................................................................................................7

4.2.- Cleaning and storage......................................................................................................7

4.3.- 5 TECHNICAL SERVICE................................................................................................ 7

SAFETY ADVICE

Before handling the equipment read the instruction manual and in particular the

SAFETY ADVICE section.

The symbol on the equipment means "PLEASE CHECK THE INSTRUCTION

MANUAL". It may also appear as a warning or caution symbol in this manual.

WARNING and CAUTION boxes may appear throughout this manual to avoid risk of

accidents to persons or damage to the equipment or other property.

--------- EARTH RESISTANCE TESTER T-3V ------- Page No. 2

1.-GENERAL REMARKS

NOTE: This tester has been designed and checked in accordance with

IEC Publication 348, safety requirements for electronic measuring equipment, IEC

61268-1010 (EN61010) and other safety standards. Please follow all advice to

ensure safe operation.

1.1.- Description

Some of the most important features of the the T-3V are:

Ability to measure earth voltage.

The 2 mA measurement current allows floor resistivity to be tested

without tripping the earth circuit breakers in the circuit to be checked.

Battery operation.

Self-disconnecting. The timer automatically operates after 3~6 minutes

without operating any check. When the operating button and the timer

activator are pressed at the same time, the measurer is kept operating.

Memory reading function.

Open circuit indicator. The OFF LED indicates when the connection for

the test points is correct.

Compact and light.

Designed to meet safety standard IEC-1010 (EN61010).

--------- EARTH RESISTANCE TESTER T-3V ------- Page No. 3

1.2.- Specifications

Measuring system Ground earth resistance using constant

current inverter.

800 Hz, 2 mA approx.

Earth voltage 0-200 V AC., 40 – 500 Hz.

Floor resisitivity Range and resolution:

0 ~ 20 Ω(0.01 Ω)

0 ~ 200 Ω(0.1 Ω)

0 ~ 2000 Ω(1 Ω)

Earth voltage accuracy ±(1% read. + 2 dig.)

Floor resistivity accuracy ±0.1 Ωor (if higher);

± (2% read. + 2 dig.)

Safety standards IEC – 1010 (EN61010).

Battery low indicator The symbol “B” appears on the display.

Reading memory indicator The symbol “DH” appears on the display.

Over-range indicator “1” in the most significant digit (MSD).

Open circuit indicator The operating indicator (2) remains off.

Timer (self-disconnection) After about 3 ~ 6 minutes without operating

any check.

Indicator 3 ½ digit LCD (2000 accounts)

Power supply 6 x 1.5 V batteries (R6C).

Sizes A. 163 x Al. 100 x Pr. 50 mm

Weight: Approx. 800 g (including batteries)

Accessories Test Pins (red – 15 m, yellow – 10 m, green –

5 m) auxiliary earth rods, carrying case,

instruction manual.

--------- EARTH RESISTANCE TESTER T-3V ------- Page No. 4

2.-SAFETY ADVICE

Carefully read the following safety information before using the tester.

Only use the tester as specified in this manual; otherwise the protection

offered by the tester may be decreased.

Environmental operating conditions:

1.- INDOOR USE

2.- Category III Installation

3.- Degree of Pollution 2

4.- Altitude up to 2,000 m.

5.- Max. relative humidity. 80%

6.- Ambient temperature 0 – 40 °C

WARNING: Handle the rods without connecting them to the equipment.

Observe the following international electrical symbols shown below:

The tester is protected by double isolation or reinforced isolation.

Warning! Risk of electrical discharge.

Warning! See this manual before using the tester.

--------- EARTH RESISTANCE TESTER T-3V ------- Page No. 5

3.-INSTRUCTIONS FOR USE

3.1.- Description of the controls and the parts

[1] Female connector for earth connection

[2] Operating open circuit indicator

[3] Reading memory switch

[4] Timer deactivation button

[5] LCD Display

[6] Female connectors for “line” conductor

[7] Function switch

[8] Ohm range switch

[9] Operating button

[10] Timer activation key

--------- EARTH RESISTANCE TESTER T-3V ------- Page No. 6

3.2.- Use

Before starting measurements, carefully read the Safety Advice section.

Connecting the test pins:

Connect the green, yellow and red test pins to the terminals E, P and C with the

earth rods P1, C1 placed in the ground "in a straight line" (see figure).

Place the function switch [7] onto the ACV position and ensure that the voltage

reading is less than 10 V AC. If not the accuracy of the earth resistance

measurement cannot be guaranteed.

If the PUSH-ON [9] button is pressed and the operating indicator [2] does not

come on, thisl means that there is an open circuit between the test pins.

200V

5 10m

Place the range switch [8] on the appropriate scale and the function switch [7]

on position "Ω". Then press PUSH-ON [9] and TIMER ON10] at the same time

and read the value on the indicator.

NOTE: When none of the E, P and C terminals is connected to the test pins, a

reading between 300 and 600 is normal (in function Ω, range 2 kΩ).

Red

Yellow

Green

EARTH

--------- EARTH RESISTANCE TESTER T-3V ------- Page No. 7

4.-MAINTENANCE

4.1.- Replacing the batteries

The batteries must be replaced when the symbol “B” appears in the lower left

hand corner of the LCD indicator:

1. Disconnect the test pins from the instrument and switch it off.

2. Use a screwdriver to loosen the screw on the rear cover. Slide off the cover,

remove the batteries and replace with new ones of the same type.

3. Replace the rear cover and tighten the screw.

4.2.- Cleaning and storage

Warning! :Avoid water getting into the case to prevent electrical discharge or

damage to the tester.

Periodically clean the case with a soft cloth dampened with water and

detergent. Do not use abrasives or solvents.

If the instrument is not going to be used for more than 60 days, remove the

batteries and store them separately.

4.3.- 5 TECHNICAL SERVICE

In the event of any equipment failure or any operational queries please contact

the technical service of CIRCUTOR S.A.

CIRCUTOR S.A. - After sales service

Vial Sant Jordi, s/n

08232 – 08232 Viladecavalls

tel. – (+34) 93 745 29 00

fax - (+34) 93 745 29 14

E-mail : central @ circutor.es

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