Uni-T UT121B Bruksanvisning

Uni-T Multimeter UT121B

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Sida 1/9

UT121A

Tr u e RM S

LIVE

CAT III 600V

LIV E

NCV

P/N:110401111426X

Contents

UT121A/121B User Manual

I. Overview ---------------------------------------------------- 3

II. Features ---------------------------------------------------- 3

III. Accessories ------------------------------------------------ 3

IV. Safety Information --------------------------------------- 4

V. Electrical Symbols --------------------------------------- 5

VI. General Specifications --------------------------------- 5

VII. External Structure --------------------------------------- 6

VIII. Button Descriptions -------------------------------------7

IX. Operating Instructions ---------------------------------- 8

X. Technical Specifications ------------------------------ 12

XI. Maintenance --------------------------------------------- 16

3 4

I. Overview

UT121A/UT121B is a pocket-sized smart multimeter, it can identify functions and ranges

automatically according to the input signal, reducing operating difficulty effectively and

improve work efficiency. The EBTN display screen (UT121B) allows user to obtain clear

readings at maximum angle. This multimeter conforms to safety standards and is set

with all-featured overload protection, ensuring users to perform safe operation in

CAT III 600V locations. Designed with special appearance and function configurations,

UT121A/UT121B is a suitable measurement tool for entry-level and residential users.

II. Features

1. Stylish appearance, ultrathin design, large display screen.

2. Entering automatic signal recognition interface when powered on, i.e., resistance,

AC/DC voltage, continuity and other functions.

3. Displaying ambient temperature in auxiliary display screen when turned on.

4. NCV detection of electromagnetic field strength and circuit continuity.

5. Recognizing live wire fast with indication sound and frequency display under LIVE

mode.

6. Protection against false detection, withstanding 600V (3.6kVA) impact at most, set

with overvoltage indication.

7. Large capacitance (60mF) measurement function (UT121B).

8. 10MHZ frequency and temperature measurement functions (UT121B).

9. Designed with large EBTN LCD and smart ADC at 3 times per second (UT121B).

III. Accessories

If any item in the package is missing or damaged, please contact your supplier immediately.

User manual ---------------------------------------------------- 1 pc

Test lead --------------------------------------------------------- 1 pair

Carrying bag ---------------------------------------------------- 1 pc

Type-K temperature probe ---------------------------------- 1 pc (UT121B)

IV. Safety Information

Note the “Warning labels and sentences”. A Warning identifies conditions and procedures

that are dangerous to the user and that can cause damage to the Product or the

equipment under test.

The product is designed in accordance with EN61010-1/61010-2-030/61010-2-033,

Electromagnetic Radiation EN61326-1 Standard, and conforms to Double Insulation,

Overvoltage CAT III 600V and Pollution Class 2. Failure to follow operating instructions

can impair the protection provided by the product.

1. Check the product and test leads before use. Pay attention to any damage or abnormal

situation. Please stop use if test lead and casing insulation are damaged, or the LCD

displays nothing, or the product cannot work normally.

2. It is forbidden to use without rear cover or battery cover set in place. Otherwise it may

cause electric shock.

3. Keep fingers behind the finger guard and never make contact with exposed wire,

connector, input terminal not in use, or circuit being measured during measurement.

4. Set the functional switch to correct position before measurement. It is forbidden to

switch over during measurement to avoid product damage.

5. Do not exert AC/DC voltage over 600V between terminal and grounding to prevent

electric shock and product damage.

6. Use caution when working with voltages over 60V DC or 30Vrms AC.

7. Do not measure voltage or current over allowed value. Before measuring on-line

resistance, diode or continuity, please disconnect all powers in the measured circuit,

and discharge all capacitors completely, otherwise it can cause inaccurate measurement

result.

8. When the symbol “ ” appears on the LCD, please replace the battery in time to

ensure measurement accuracy. Remove the battery if the product is not used for a

long time.

9. Do not alter the internal wiring to avoid product damage and safety hazard.

10. Do not keep or use the product in environments with high temperature, high humidity,

strong electromagnetic field, or inflammable and explosive environments.

11. Please wipe the casing with wet cloth and cleaning agent, do not use abrasives or

solvents, so as to prevent casing corrosion and avoid product damage and safety

hazard.

UT121A/121B User ManualUT121A/121B User Manual

Produktspecifikationer

Varumärke:	Uni-T
Kategori:	Multimeter
Modell:	UT121B
Färg på produkten:	Zwart
Typ av förpackning:	Doos
Anslutningsteknik:	Bedraad
Typ av strömkälla:	USB
Antal färger:	16.8 M
Avsedd för:	Pc/server
Rekommenderad användning:	Gamen
Bakgrundsbelysning:	Ja
Förbindelse:	USB
Bakgrundsbelysning-färg:	Diverse
Numerisk knappsats:	Ja
Stöder Mac-operativsystem:	Mac OS X 10.10 Yosemite, Mac OS X 10.11 El Capitan, Mac OS X 10.8 Mountain Lion, Mac OS X 10.9 Mavericks
Mac-kompatibilitet:	Ja
Inkluderar mus:	Nee
Windows-tangenter:	Ja
Tangentbord i full storlek:	Ja
Ytfärg:	Monochromatisch
Minsta lagringsutrymme på hårddisken:	100 MB
Tangentbordslayout:	QWERTY
Programmerbara snabbtangenter:	Ja
Handledsstöd:	Nee
Tangentbordsknappbrytare:	Mechanische keyswitch
Tangentbordsstorlek:	Volledige grootte (100%)
Stil tangentbord:	Recht
Tangentbordsmått (BxDxH):	475 x 39 x 171 mm
Tangentbords vikt:	1500 g
Antal-produkter-ingår:	1 stuk(s)
Livslängd för tangentbordstangenter:	80 miljoen tekens
Rulla över:	10-key rollover
Röstningskvot:	1000 Hz
Anti-ghosting:	Ja
Driftskraft:	50 g
Anpassningsbar bakgrundsbelysning:	Ja