Special Digital Multimeter /Special DMMs

 

(Leakage Current Meter, Insulation Test Multimeter, Automotive Engine Analyzer, Mechanical Protection Multimeter)

 

SRT253 Series 

Large Jaws Leakage Current Clamp Meters

SRT253A, SRT253B 

Safety Rating

CAT III 600V

Certifications 

CE

IEC:1010-1

IEC:1010-2-032

Specification

Range

 

Best Accuracy

Model

 

 

SRT253A

SRT253B

Leakage Current (A)

Range

0.00mA~300A

±(1.5%+3)

±(1.5%+3)

300A~1200A

±(2%+3)

±(2%+3)

1200A~2000A  

 

±(3%+3)

Voltage (Freq.)

0V~600V(50Hz/60Hz)

YES

YES

Resolution

0.01mA

0.1mA

AC Voltage (V)

Range

0.00V~600V

±(1.5%+3)   

±(1.5%+3)   

Frequency

50Hz/60Hz

YES

YES

Resolution

0.01V

YES

YES

Features

Display Mode

LCD: 128dots×64dots

YES

YES

Clamp Size

80mm×80mm

YES

YES

Auto Range

 

YES

YES

RS-232

 

YES

YES

Data Logging

 

200

200

LCD Backlight

 

YES

YES

Data Hold

 

YES

YES

Over-Range Display

OL

YES

YES

Auto Power Off

Around 15 Minutes

YES

YES

Low Battery Indication

5.2V

YES

YES

Test Mode

Clamp CT, Integral Approach 

YES

YES

General Characteristic 

Power

1.5V Alkaline Batteries (LR6)×4

LCD Size

43mm X 29mm

Product Color

Red and Grey  

Product Net Weight

1000g

Product Size

275mm X 145mm X 40mm

Standard Accessories

Batteries, Test Line: 4 pcs(3 red, 1 black),RS-232 Interface Cable, PC Software CD

Standard Individual Packing

Gift Box, English Manual, Tool Box

Standard Quantity Per Carton

6pcs

Standard Carton Measurement

610mm X 375mm X 320mm (0.073CBM Per Standard Carton)

Standard Carton Gross Weight

25Kg

 

NAME:

DT-6057 3 1/2 DIGITAL AC CLAMP LEAKAGE MODEL MULTIMETER

* Function: AC /DC Voltage, AC Current, Resistance, Diode test and Audible continuity test
* Display: 3 1/2 digit LCD with a max. reading of 1999.
* AC Leaker model Current to 0.1mA
* AC/DC Voltage to 750V/1000V
* Clamp opening size: 1.57" (40mm)
* Data Hold to freeze the displayed value
* Back light 
* Safety: According to EN61010-1 protection class
overvoltage category (CAT 600V) pollution degree 2.
* Power supply: 9V Zinc-carbon battery.
* Dimension: 242(H)×80(W)×44(D)mm.

NAME:

DT-6303 3 1/2 DIGITAL INSULATION TEST METER

· Function: Insulation test
· Display : 3 1/2 digit LCD with a max. reading of 1999.
· Test voltage 250V/500V/1000V
· EL Back light
· LED High voltage indication
· Safety: According to EN61010-1 protection class
overvoltage category (CAT 600V) pollution degree 2.
· Power supply : 9V Zinc-carbon battery.
· Size: 155(H)×97(W)×50(D)mm.
· Weight: Approx. 320g (including battery).

NAME:

DT-6300 3 3/4 AUTO RANGE & AUTO POWER OFF DIGITAL MULTIMETER AND AUTOMOTIVE ENGINE ANALYZER

·Function: DC/AC Voltage, DC/ AC Current, Resistance, Capacitance, Frequency and Duty cycle, Temperature, Diode\ Continuity test, Tachometer, Dwell .ms-PULSE, Quadratic signal output (reference are changeable)
· Display: 3 3/4 digits LCD with a max . reading of 3999.
· Auto range / Auto power off
· EL Back light / hold key
· Safety: According to EN61010-1 protection class
overvoltage category (CAT 600V) pollution degree 2.
·REL
· Power supply : 2×1.5V AA batteries.
· Size: 155(H)×97(W)×50(D) mm
· Weight: Approx. 500g(including battery and holster).

NAME:   

DT-6302 3 1/2 DIGITAL AUTOMOTIVE ENGINE ANALYZER   MULTIMETER

·Function: DC/ AC Voltage, Resistance, DC Current, Temperature, Diode and Continuity test, Tachometer, Dwell .
· Display: 3 1/2 digits LCD with a max . reading of 1999
· Auto-Zero & Auto-Polarity
· EL Back light and hold key
· Safety: According to EN61010-1 protection class
overvoltage category (CAT 600V) pollution degree 2.
· Power supply : 9-volt battery
· Size: 155(H)×97(W)×50(D) mm
· Weight: Approx. 700g(including battery and holster).

NAME:

DT-760 series DIGITAL MECHANICAL PROTETION MULTIMETER

Function:

1.Mechanical blocking system for terminal sockets to prevent mistake operation

2.Function indicator light

3.Big LCD display

4. Back Light

5. Data Hold

 

 

DT-760A / DT-760B

DT-760C

DT-760D / DT-760E

Display

1999

1999

5999

 

Manual Range 

Manual Range 

Auto Range 

DC Voltage

200mV~1000V

200mV~1000V

60mV~1000V

AC Voltage 

2V~700V

2V~700V

60mV~750V

DC Current

2mA~10A

2mA~10A

600uA~600A

AC Current

2mA~10A

2mA~10A

600uA~600A

Resistance

200ohm~20Mohm

200ohm~20Mohm

600ohm~600Mohm

Capacitance 

2nF~200uF

2nF~200uF

40nF~4000uF

Temperature

.-40ºC~1000ºC  (Only DT-760B)

.-40ºC~1000ºC

.-20ºC~800ºC

Frequency

10Hz~200KHz   (Only DT-760B)

10Hz~200KHz   

10Hz~10MHz

Inductance

 

20mH~20H

 

True RMS 

   

Yes (Only DT-760D)

Bar graph display 

   

Yes

 

Double Clamp Digital Phase Meter  SRT4000

Standard: CE

Packing: Aluminumfoil

 

Product Description
SRT4000 Series of Double clamp digital phase meter is specially designed for situ test of phase, voltage, current, AC leakage current, phase sequence. It is a product with double channel, multifunction digital mode, hand-hold characteristic. With the newest CT technology and digital integrated technology in design ensure its high accuracy, high stability, high reliability in years use. The meter could be widely applied in those fields as electricity, communications, meteorology, railroad, oilfield, construction, measurement, scientific & research teaching institutes, industrial and mining establishments.

General Specification

Function

random phase measurement, AC current and leak current measurement, AC Voltage detection, distinguish the inductive circuit and capacitive circuit, sequence of three-phase voltage detection and connection group of transformer detection, etc.

Power supply

DC9V alkaline dry battery LR6×6  continuous duty :300h

LCD

3-1/2 LCD display

Dimension

Width *length* thick: 92mm*192mm*50mm

LCD dimension

Display domain:64mm×54mm ;font high:40mm

Clamp mouth

φ7.5mm (φ40mm lectotype)

Measuring range

phase: 0~360º;current:0~200mA/2A/10A;voltage:0~20V/200V/500V

Resolution

phase: 1º;current:0.1mA;voltage:0.01V

Measurement accuracy (50Hz,23ºC±1ºC’40-60%RH)

phase: ±3º

current: ±1%±2dgt

Voltage: ±1.2%±2dgt

line voltage

Line test under AC500V

Sampling speed

About 3 times /s

Signal frequency

sine wave 45Hz~55Hz β=0.05

Data hold

Data holding function: displayed by "DH" symbol

Back light function

Blue back light ,suit for dark occasion

Automatic shutdown

After starting up 15min’it shutdown automatically to reduce battery consumption

Battery voltage

When battery voltage is low ,battery low voltage symbol will filker to remind replacing battery;

Quality

Core about590g(with battery)' long flat nose current pliers about: 175g*2' big round tongs clamp:120g

Work temperature and moisture

-10ºC~40ºC; 85%rh below

Storage temperature and moisture

-20ºC~60ºC; 70%rh below

Driving point impedance

AC voltage driving point impedance:2MΩ;when test phase U1-U2:40KΩ

Insulation intension

≥10MΩ9(Between wire of meter and crust' two voltage input port)

Voltage bear

Between port of voltage input and box, split core type current transformator and clamp handle& winding coil: 1000V/50Hz, 1min experiment can be reach when sine wave AC voltage 500V/50Hz between port of voltage input.

 

Double Clamp Digital Phase Meter SRT4100

Standard: CE

Packing: CARTON

 

Product Description

The SRT4100 Double Clamp Digital Phase Meter is a well-developed
Meter specifically designed for field testing, featuring high accuracy, high
Stability, low power consumption, easiness to use and so on. It can directly
Measure phases between two voltages, two currents and phase between the
Voltage and current; In addition, it can also be used to distinguish three-phase
Sequence, transformer wiring group, inductive and capacitive circuits, test
Second circuit and bus differential protection systems, read the phase
Relationship between CTs of the differential protection, etc.

The SRT4100 Double Clamp Digital Phase Meter has a large LCD
Screen displaying words as high as 40mm against a blue backlight, and looks
Exquisite and comfortable.

The SRT4100 Double Clamp Digital Phase Meter applies to electric
Power, petroleum chemical industry, metallurgy, railway, and meteorology,
Industrial and mining enterprises, scientific research institutions, measurement
Sector and so on.

Influence Quantity

Base Condition

Working Conditions

Remark

Ambient Temp

23ºC±1ºC

-10ºC ~ 40ºC

 

Ambient Humidity

40% ~ 60%

< 80%

 

Signal Waveform

sine wave

sine wave

β=0.05

Signal Frequency

50HZ±1HZ

45HZ ~ 65HZ

 

Meter Working Volt

9V±0.1V

9V±1V

 

External Electric, Magnetic Field

To be avoided

Measured Wire Position

Measured wire at approximately the geometric center of the clamp

General Specification

Function

Phase, direct test of phase sequence; transformer groups, inductive, capacitive circuit discrimination

Power

DC9V alkaline batteries ( 1.5V AA×6 )

Consumption

About 35mA at most with enabled backlight, battery working continuously for about 40 hours

About 5mA with disabled backlight, battery working continuously for about 300 hours

Display Mode

LCD display, blue backlight, suitable for dark places

LCD Size

70mm × 62mm

LCD Display Field

64mm × 54mm

Meter Size

Length, Width, Height : 196mm × 92mm × 54mm

Clamp Size

φ 7.5mm × 13mm

Sampling Rate

About 3 times/second

Measurement   Range

0~360º

Intrinsic Error

±3º

Resolution

±1º

Measured Signal Amplitude in Phase Test

U1-U2 phase test : 30V ~ 500V

I1-I2 phase test : 10mA ~ 10.00A

U1-I2 or I1-U2 phase test : 10V ~ 500V , 10mA ~ 10.00A

Data Hold

Press " HOLD " key to keep data, "DH" symbol appears

Automatic Shutdown

Automatic shutdown about 15 minutes later after launching to reduce battery consumption

Voltage Detection

Low battery symbol   appears to remind the replacement of battery when the battery voltage drops below 7.8V ~ 8V.

Weight

Main Unit about   550g (with battery) , clamp about   170g ×2 , test line about   250g

Test Line Length

1.5m

Current Clamp Length

2m

Working Temperature and Humidity

-10ºC ~ 40ºC ;  below 80%Rh

Storage Temperature and Humidity

-10ºC ~ 60ºC ;  below 70%Rh

Input Impedance

Input impedance for voltage range : 2MΩ

Input impedance when testing U1U2 phase : 40KΩ

Withstand Voltage

Withstand 1000V/50Hz sine wave AC voltage for 1 minute between the meter lines and shell; Withstand 500V/50Hz AC voltage sine wave for 1 minute between the two voltage inputs

Insulation

≥10MΩ   between meter lines and shell or between the two voltage inputs

Structure

Double insulation

 

H/L Voltage Clamp Meter SRT9000

Standard: CE

Packing: Aluminumfoil

 

Product Description

Characteristic:
1. High voltage AC current measurement, low voltage AC current, leakage current measurement, on-line AC current supervision.
2. Range: 0.1mA~1000A
3. Accuracy: 0.1mA Automatic Shift
4. Circuit Voltage: Below 60KV (operated with insulation rod)
5. Data Storage: 99 Groups
6. Clamp Diameter: φ 48mm
7. Host: 76*255*31mm LCD: 47*28.5mm
8. 11 years of specialized meters
9. OEM services available
10. ISO, Patent and CE certificate

Measuring range: 10A/600A, second-range manual switch, automatic switch in all ranges

Illustration:
SRT9000 Series H/L Voltage Clamp Meter has broken through the traditional structure, which is specially well-designed for measuring high voltage current, adopting the latest CT technology and integrated mask digital technology, formed by composition of a special use clamp meter with a high-voltage insulation rod, as to SRT9000A type -- infrared transmission of test data, also equipped with receivers, which can monitor the tested data in a long distance on real-time. If not using an insulation rod, it can be also used as a high precision low-voltage clamp meter, or an alternating current meter, which can accurately measure 1mA of current or leakage current

Function

High voltage AC current measurement, low voltage AC current, leakage current measurement, on-line AC current supervision.

Battery supply

DC6V alkaline dry battery (AAA*4)

Test mode

Clip –on CT, ntegral mode

Display dimensions

4 digital LCD display, backlight function, suitable for dark place.

LCD dimensions

47mm*28.5mm

Dimensions

Width *height* thickness:76mm*255mm*31mm

Clamp mouth

φ48mm

Sampling Rate

Twice per second

Measuring Scope

0.1mA~1000A(50/60Hz automatic) 

Resolution

0.1mA

Measuring accuracy ( 23 ºC ± 5 ºC, 80%RH below ) 

0.1mA~299mA: ±1%±3dgt
300mA~49.9A: ±1.5%±5dgt
50.0A~199.9A: ±2%±5dgt
200A~600A: ±3%±5dgt
601A~1000A: ±4%±5dgt  

Circuit Voltage

Test for the circuit below 23KV (operated with insulation rod)

Data memory

99 Groups, during storage, the symbol "EM "gives indication, " FULL " mark will flash to indicate the memory has been full.

Peak Maintenance  

The function of automatic capture and maintain the maximum average value, under general test mode, press HOLD button longer till PEAK light is bright, that is, start PEAK test function, also known as peak test.

Data Preservation

Under general test mode, press HOLD button to preserve data, "OLD " symbol display.

Data look out

"R"ymbol means turn up and down to look out the data is allow.

Overflow display

Outrange overflow display: displayed by "L A" symbol

Auto Shut Down

In about 15 minutes after booting, the meter will shut down automatically, in order to decrease the battery consumption.

Battery voltage

When battery voltage reduced to 5V, battery low voltage symbol will filker to remind replacing battery

Meter quality

Tester: About 335g (Including battery), total quality of meter: about 2.5Kg (including insulation rod and battery.)

Working temperature and humidity

-10ºC~40ºC; 80%Rh below

Storage temperature and humidity

-10ºC~60ºC;70%Rh below  

Insulating bar dimensions

φ32mm, 1m/ Section( Sections)

Insulation strength

AC 40KV/rms (Between insulation rod and clamp core)  

Structure

Anti-Dripping Type II  

 

Radio H/L Voltage Clamp Meter SRT9000B

Standard: CE

Packing: CARTON

 

Product Description

SRT9000B Series H/L Voltage Clamp Meter has broken through the traditional structure, which is specially well-designed for measuring high voltage current, adopting the latest CT technology and integrated mask digital technology, formed by composition of a special use clamp meter with a high-voltage insulation rod SRT9000B Series H/L Voltage Clamp Meter has an innovative integrated design between transducer clamp and transducer domain, ensuring the high-precision, high-reliability, and high-stability on constant test perennially.

SRT9000B Series H/L Voltage Clamp Meter is connected with insulation rod, which can be used for measuring high voltage current that is below 23KV, on-line current measurement, also having peak maintenance, data preservation, data storage, Radio transmission and other functions, and its special clamp meter can make it easier for clamping or evacuating the tested wire through pressing or pulling back the insulation rod, time-saving and fast, widely used in transformer substation, power plant, industrial and mining enterprises as well as the inspection station and electrician maintenance departments for electrical current detection and field electrical operations. It can also replace the H/L voltage transforming ratio tester, that is, to detect the high and low
Current for primary circuit and secondary circuit separately, and then calculate to conclude the change of high and low pressure. The insulation rod is light and convenient, with the advantages of anti-moisture, high temperature resistance, anti-impact, bending resistance, high insulation, flexibility and other characteristics

Function

High voltage AC current measurement, low voltage AC current, leakage current measurement, on-line AC current supervision.

Battery supply

DC6V alkaline dry battery ( AAA×4 )

Test mode

Clip –on CT , integral mode

* transmission distance

Radio transmission 30m ( maximum )

Display dimensions

4 digital LCD display, backlight function, suitable for dark place.

LCD dimensions

47mm × 28.5mm

dimensions

Width *height* thickness : 76mm × 255mm × 31mm

Clamp mouth

φ 48mm

Sampling Rate

Twice per second

Measuring Scope

0.1mA ~ 1000A (50/60Hz automatic ) 

Resolution

0.1mA

Measuring accuracy
( 23 ºC ± 5 ºC , 80%RH below)
 

0.1mA~299mA:         ± 1% ± 3dgt 

300mA ~10.00A :      ± 1.5% ± 5dgt 

50.0A ~ 199.9A :       ± 2% ± 5dgt 

200A ~ 600A :          ± 3% ± 5dgt    

601A ~ 1000A :        ± 4% ± 5dgt

Circuit Voltage

Test for the circuit below 23KV (operated with insulation rod)   

Data memory

99 Groups, during storage, the symbol " MEM " gives indication, " FULL " mark will flash to indicate the memory has been full.

Peak Maintenance

The function of automatic capture and maintain the maximum average value, under general test mode, press   HOLD   button longer till PEAK light is bright, that is, start PEAK test function, also known as peak test.

data Preservation

Under general test mode, press   HOLD   button to preserve data, " HOLD " symbol display.

Data look out

"MR"symbol means turn up and down to look out the data is allow.

Overflow display

Outrange overflow display : displayed by "OL A" symbol

*No signal Indicator

When the receiver has not received transmit signal, it will display " no- - "signal dynamically.

Auto Shut Down

In about 15 minutes after booting, the meter will shut down automatically, in order to decrease the battery consumption.

Battery   voltage

When battery voltage reduced to 5V, battery low voltage symbol will filker to remind replacing battery

Meter quality

Tester: About 335g (Including battery), total quality of meter: about 2.5Kg (including insulation rod and battery.)

Working temperature and humidity

-10 ºC ~ 40 ºC ; 80%Rh below

Storage temperature and humidity

-10 ºC ~60 ºC ; 70%Rh below

Insulating bar dimensions

φ 32mm, 1m / Section ( 5 Sections )

Insulation strength

AC 40KV/rms (Between insulation rod and clamp core)

structure

Anti-Dripping Type II

   
   

Leakage Current Monitoring Recorder Meter SRT8000, SRT8000B

Standard: CE

RS232 computer interface function

Packing: CARTON

 

Product Description

SRT8000 leakage current monitoring recorder is designed and manufactured elaborately for  the field test, Monitor and record the leakage current, current. it consists of Host,SRT leakage current monitoring software, current pliers, communications lines etc. Its widely used in power, telecommunications, meteorology, railway, oil field, construction , teaching research unit, industrial mining enterprises etc.

SRT8000 leakage current monitoring recorder applies below AC600V AC lines, can accurately test from 0.01 mA .It is very convenient to find the reasons of insulation fault, Find the circuit of insulation fault, Monitoring intermittent leakage faults, Check the occuring time of insulation fault occurs, Maintenance line etc .

 

Model

Range

Resolution

Accuracy

Clamp size

SRT8000

0mA-500A

1mA

±2%±5dgt

35mm×40mm

SRT8000B

0.00mA-20A

0.01mA

±2%±5dgt

25mm×30mm

 

Function AC leakage current, current measurement, on-line monitoring, insulation fault search, line maintenance
Battery supply DC6V alkaline dry battery (AAA*4)
Test mode Clip –on CT, True RMS values
Display dimensions LCD128dots×64dots
Dimension HostWidth *height* thickness 75mm×170mm×30mm
 
Round mouth current clamp: Width *height* thickness 63mm×160mm×23mm(optional)
Needle Nose current clampWidth *height* thickness 40mm×138mm×20mm(optional)
Weight Host about 240g(include battery)
Round mouth current clamp: about 170g  (optional)
Needle Nose current clamp: about 190g  (optional)
LCD Size Display domain: 44mm×27mm
Span of Jaw Round mouth: φ40mm;Needle Noseφ7.5mm×14mm(optional)
Sampling Rate Twice per second
Measuring Scope

SRT8000: 0mA-500A

SRT8000B: 0.00mA~20.00A(50/60Hz automatic)

Resolution SRT8000: 1mA; SRT8000B: 0.01mA
Measuring Accuracy ±2%±5dgt(23ºC±1ºC,below 70%RH)
Data Storage 4200 set(never lost data though Power off or replace batteries )
Setting-up Time Set record interval time within 1~60 minute , 0 minute is not automatic storage
Recording Time Saving mode continuous work about 10 days
Circuit Voltage Test for the circuit below AC600V
Overflow Display Outrange overflow displaydisplayed by "OL A" symbol
Battery Voltage When battery voltage reduced to 4.6V~4.8V,battery low voltage symbol will filker to remind replacing battery
Rated Power Power saving mode about 5mA,maximum 20mA
Leadwire Length Standard 2 meters (can be lengthened according to the distance,  can distant online monitoring withnin 0 ~ 50 meters)
Working Temperature and Humidity -10ºC~40ºC;80%rh below
Storage temperature and Humidity -10ºC~60ºC;70%rh below
Insulation Resistance 100MΩor more,1000V
Applicable Safety Rules IEC1010-1IEC1010-2-032pollution, etc 2CAT Ⅲ(600V) IEC61326(EMC standard)
Accessories Host: 1pcs; Round-end current clamp: 1pcs; Taper-end current clamp: 1pcs(optional); RS232 communication cable: 1 pcs; SRT monitor software (CD-ROM): 1pcs; Meter Box: 1pcs

( If you need prices, pictures without our warter mark, user manual or E-catalogue for above meters, please ask for at: xiushunjie@gmail.com )