Uni-T UT526 Bruksanvisning

Uni-T Multimeter UT526

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I. Overview

UT525/UT526 is a multifunction digital instrument adopting brand-new design

using large-scale integrated analogue and digital circuits and micro-processor chip.

It mainly measures RCD parameters, low-resistance continuity, insulation resistance,

DC&AC Voltage, etc. The versatile functionality, high accuracy and ease of use

features make it widely used to measure insulation and continuity of various kinds

of electrical equipments, and an ideal tool for maintenance, inspection and tests

badly needed for RCD in those equipments.

II. Safety Information

This instrument was designed, manufactured and tested according to

IEC61010 safety standard (Safety Requirements for Electrical Equipment).

The manual includes safety information related to the safe operation of the instr

-ument. Please read the following instructions before use and strictly follow them

during the operation.

Warning

● Please read and understood the manual before using the instrument.

● Use the instrument as specified in the manual and keep the manual

well for future reference.

● Misuse may cause personal injury or damage to the instrument during

tests.

Sign on the instrument indicates users to refer to the manual for details in

order to ensure safe operation of the instrument.

Specifies conditions and actions that may pose severe or

fatal hazards to the user.

Warning

Alerts users to avoid electric shock.

Specifies conditions and actions that damages the

instrument or affect the measurement accuracy.

Caution

Danger

Warning

Caution

III. Electrical Symbols

Risk of electric shock

Double or reinforced insulation

Grounding

IV. Speciﬁcations

Accuracy: ±(a% of reading+ b digits), calibration per year

Ambient Temperature & Humidity: 23±5 , 45~75%RH.℃

RCD Test

Test current 10mA 30mA 100mA 300mA

Applied voltage

Voltage: 220V±10%, frequency: 45Hz-65Hz

Test current accuracy

At 220Vac ± 2: 0 +10%

Trip time

Accuracy ±(5%+2)

(10mA) range: 0-2,000mS

(30mA) range: 0-500mS

(100mA) range: 0-300mS

(300mA) range: 0-300mS

0.01Ω 200Ω:±(2%+5)～

201Ω 2000Ω:±(5%+5)～

Insulation Resistance(UT525)

Rated voltage 100V 250V 500V

Test range 0.05MΩ-200MΩ

Open circuit voltage DC 100V±10% DC 250V±10% DC 500V±10%

Rated test current 100KΩ load 250KΩ load 500KΩ load

Short-circuit current 1.8mA＜

Accuracy 0.05MΩ-200MΩ: ±(5%+5)

0.9mA-1.1mA

Rated voltage 250V 500V 1,000V

Test range 0.05MΩ-200MΩ 0.05MΩ-300MΩ 0.05MΩ-500MΩ

Open circuit voltage DC 250V±10% DC 500V±10% DC 1,000V±10%

Rated test current 500KΩ load 1MΩ load 250KΩ load

Short-circuit current 1.8mA＜

Accuracy 0.05MΩ-500MΩ: ±(5%+5)

0.9mA-1.1mA 0.9mA-1.1mA

0.9mA-1.1mA

Voltage

DCV ACV

Test range ±0-±440V 0-440V (50/60Hz), for 10V, it is for ＜

reference only.

Resolution 1V

Accuracy

±(2%+3)

Frequency

Test range 20Hz-100Hz

Resolution 1Hz

Accuracy Just for reference

● Display: LCD display, max reading: 9999

● Low battery indication:

● Over limit indication: “ ”OL

● Auto range function

● Unit display: Display function and unit symbols simultaneously.

● Work conditions: 0 -40℃ ℃/ ≤85%RH

● Storage condition: -20 -60℃ ℃/≤90%RH

● Dimensions: 150mm(L)×100mm(W)×71mm(D)

● Current consumption: about 50mA (1,000V output) (about 10mA in general

condition)

● Accessories: test lead, alkaline battery (1.5V, AA)×6, manual,

carrying bag

● Weight: 0.7kg (including batteries)

● Power: alkaline battery (1.5V, AA)×6

V. Tester Description (Front View, See Figure 1)

1. : Live terminal for RCD measurement and positive terminal for voltage L

measurement

2. : earth terminal for RCD measurementE

3. : Neutral terminal for RCD measurement and input negative terminal for N

voltage tmeasurement

4. : High voltage output terminal for insulation resistance measurementLINE

5. LCD

6. RCD current setup/voltage switchover button

7. RCD phase angle switchover/zeroing button

8. Test button

Figure 1

VI. Buttons and Rotary Switch Functions

1. I/VOLT: Select RCD test currents/switch between AC and DC voltage;

2. ANG/ZERO: Switch phase angle for RCD measurements/ reset to zero before

continuity test;

3. TEST: Begin a test;

4. Set rotary switch to Continuity: Test for grounding continuity;

5. Set rotary switch to RCD/V: Measure RCD/AC&DC voltage;

6. Set rotary switch to 100V/250V/500V (UT525) or 250V/500V/1000V (UT526):

select a output voltage under insulation resistance measurement.

VII. Preparations before Measurement

When the instrument turns on, if low battery indicator shows on left side of LCD,

it indicates the battery is running out and please replace the battery timely.

Low Battery Indicator

Battery Voltage

7V or less

VIII. Testing for Continuity(See Figure 2)

Multifunction Electric Testers

● Do not measure any circuit with voltage above 440Vac or 440Vdc.

● Do not take measurements on sites exposed to flammables, for spark may

cause the explosion.

● Do not use the Tester if it is wet or the operator’s hands are wet.

● Do not touch conductive parts of test leads during measurement.

● Do not use the instrument if it works abnormally. Eg: the instrument is damaged

or the metal is exposed.

● Please take caution when working voltage exceeds 33Vrms, 46.7Vacrms or

70Vdc, for it may cause electric shock.

● The electric storage in tested circuits must be released after finishing high

resistance measurements.

● Do not replace the battery if the instrument is under wet conditions.

● Please ensure the test leads are firmly secured to input terminals of the

instrument.

● Ensure the instrument is turned off before opening the battery cover.

● The tested circuit should be discharged completely and totally separated from

the power before making resistance measurements.

● If it is necessary to replace the test leads or power adaptor, please use only

the same model with identical electric specifications.

● If low battery indicator( ) shows, stop using the instrument. Take

out the battery if not used for a long time.

● Do not store or use the instrument in the places exposed to high temperature,

high humidity, explosives, flammables or strong electromagnetic field.

● Clean the instrument casing with dampened cloth and mild detergent. No

abrasives or solvents are allowed.

● When the instrument is wet, dry it first before storing it.

Low-Resistance Continuity(UT525)

Low-Resistance Continuity(UT526)

Insulation Resistance(UT526)

● Auto voltage release

● Red warning light

● Compliances: CATIII 600V, Pollution Degree II as per IEC61010

● Do not measure with the battery cover opened.

● Do not touch any circuit under test when you are measuring insulation or RCD.

9. Rotary switch

To test continuity:

1. Connect the tested object and the Tester as shown in Figure 2;

2. Set the rotary switch to Continuity;

3. Press TEST button to begin the test;

Caution:

● To ensure the test accuracy, please short-circuit the test leads and zero the

display(Zeroing Steps: set the tester under continuity status, short-circuit the

test leads, press TEST button and then press ANG/ZERO button to reset the

resistance of test leads to “0”, ZERO shows on LCD.)

● Do not test any live objects.

Produktspecifikationer

Varumärke:	Uni-T
Kategori:	Multimeter
Modell:	UT526
Produkttyp:	Digital multimeter
Produktstorlek (BxDxH):	160 x 71 x 100 mm
Batterispänning:	1.5 V
Batterier medföljer:	Ja
Displaytyp:	LCD
Indikator för låg batterinivå:	Ja