SFK188 Series Digital Megohmmeter

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Introduction 

Technical Parameters 

Rated voltage
500v
1000v
2500v
Measuring range
 
0.0~99.9MΩ
100~999 MΩ
 
0.0~99.9MΩ
100~999 MΩ
1.00~1.99GΩ
0.0~99.9MΩ
100~999 MΩ
1.00~9.99GΩ
10.0~99.9 GΩ
Open circuit voltage
DC500v
+30%,-0%
DC1000v
+20%,-0%
DC2500v
+20%,-0%
Standard measuring current
0.5 MΩ load,
1mA~1.2mA
1 MΩ load,
1mA~1.2mA
2.5 MΩ load,
1mA~1.2mA
Short circuit current
Approx.1.3mA
Accuracy
0.0~99.9 GΩ; ±5%rdg±3dgt
Over 100 GΩ; ±20%
 

  • Measuring result showed in bar chart
  • With alive circuit warning sign and buzzing warning
  • PI (polarization index) measurement
  • Automatic discharge, making the operation safer
  • Automatic power off, once no operation in 10min, the tester will be power off automatically
  • Low power indication
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SFK219 Intelligent Micro Water Detector

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Introduction

  • Portable design: light and portable; Self-calibration: automatic zero calibration of the sensor probe, auto eliminate error caused by zero drift, ensure the measurement accuracy, while avoiding tedious annual calibration; Fast measurement: no need of pre-heating, quickly reach the dew point saturation; Data storage: high-capacity design, test data can be stored.
  • Low gas consumption: only 2L (101,2kpa) or so; Self-locking connector: Germany imported self-locking connector, safe and reliable, no leaks.
  • Clear display: direct LCD display of the dew point, moisture (ppm), ambient temperature, humidity, time and date, battery and so on.
  • RS232 interface: can be connected with serial printer to print data
  • Built-in power source: Built-in 4AH rechargeable lithium battery, allowing continuous work for 10 hours after charging

Technical Parameters

  • Dew point:measuring range: -50℃ ~ +20℃     ±2℃(-50℃ ~ +20℃)
  • Measuring accuracy:±3℃(-55℃ ~ -50℃)
  • Response time:(+20℃):45s for 63%,90s for 90%(-50℃ +20℃)
  • Operating temperature:-40℃ ~ +80℃
  • Ambient temperature:-40℃ ~ +60℃
  • Humidity:0 ~100%RH
  • Power supply :AC220V Built-in rechargeable battery
  • Battery performance: Charging time 20 hours or more, allowing use for10 hours
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SFK251 Series High Current Generator

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Introduction 

This series of generator is suitable for various switches, current transformers, and other apparatus with rated frequency of 50Hz to do current loading and temperature rise tests.

The generator consists of LV high current dry type transformer and console. It is also equipped with current transformer to measure and read value of test current.

The generator takes use of new design and material thus to get a lower short circuit impedance, dimension and weight than traditional products of the same kind. The generator could be in split or integrated type determined by dimension and weight. It is featured by output current stepless regulation, stable current adjustment, large loading range, reliability and easy operation.

Technical Parameters 

Specification
Rated capacity (KVA)
Rated input
Rated output
Structure
regulator
Current booster
Current (A)
Voltage (V)
Current(A)
Voltage(V)
SF9016-500
2.5
2.5
12.5
200
500
0~5
integrated
SF9016-1000
5
5
25
200
1000
0~5
integrated
SF9016-1500
7.5
7.5
37.5
200
1500
0~5
integrated
SF9016-2000
10
10
25
400
2000
0~5
integrated
SF9016-2500
12.5
12.5
31.25
400
2500
0~5
split
SF9016-3000
15
15
37.5
400
3000
0~6
split
SF9016-4000
25
25
50
400
4000
0~6
split
SF9016-5000
30
30
75
400
5000
0~6
split
SF9016-10000
60
60
150
400
10000
0~6
split

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SFK251 Vacuum Degree Test Instrument

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Introduction

This instrument is basis on magnetic control discharge principle. Singlechip computer acts as the main control unit. The test is completely automatically controlled. The instrument is featured by high measuring accuracy, easy operation, portability, strong anti-interference, especially suitable for power supply companies to do on-site tests. It is a must for vacant circuit breaker production, setting and maintenance.

Technical Parameters

  • Vacuum degree measuring range:9.999 X 10-1~1 X 10-5
  • Ionic current measuring range :9.999 X 10-1~1 X 10-7
  • Measuring error:<10%
  • Ambient temperature:-20℃~50℃
  • Power supply:AC220V,  50HZ±10%
  • Dimension:420 X 290 X 210mm3
  • Measuring resolution:10-5Pa
  • Air humidity:≤80%Rh
  • Output:impulse 30kv,15kHz
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SFK254 Loop Resistance Tester

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Introduction

This tester is used to measure contact resistance of HV/LV switches’ main contact, or DC resistance of HV/LV cable lines. The loop resistance tester takes 100A constant output current. The output voltage could be up to 10V (twice or triple that of common test object). The measuring wire could be of small cross-section so as to reduce labor of the test personnel). The whole test procedures are automatically controlled and carried out by singlechip. The tester is featured by high accuracy, good retest, single button easy operation, LCD display and test result print, suitable for various working circumstances.

Technical Parameters

  • Measuring range:0~2000µΩ
  • Measuring accuracy:Grade 0.5
  • Working temperature:-10℃~50℃
  • Use condition:0 ~40 ℃, <80%, no corrosive air, no conductive dust
  • Measuring current:>100A/DC
  • Display: LCD, test result print
  • Working current:AC220v±10%,50HZ
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SFK255 Intelligent Dew-Point Meter

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Introduction

SFK255 intelligent dew point meter takes use of the state-of-art  sensor technology, and flocculating membrane DRYCAP probe with three world patents . Anti-condensation, anti-dust, anti-particles, free from influence from oil and gas. With automatic calibration function, during online measurement, automated calibration software automatically corrects nominal at dry-end of the measurement curve .It ensures anastomosis of measurement curve and theoretical curve through regular self-reset.

Technical Parameters

  • Dew point measuring range: -80℃ ~ +20℃
  • Dew point measuring accuracy:-60℃ ~ -20℃±0.2℃   -80℃ ~ -60℃±2℃
  • Response time:(+20℃):-60℃ ~ -20℃   5s(63%)   45s(90%)
                                     -20℃ ~ -60℃  10s(63%)  240s(90%)
  • Temperature measurement range:-40℃ ~ +80℃
  • Humidity measurement range:0 ~100%RH
  • Operating environment relative temperature:-40~+60℃         
  • Operating environment relative humidity  :0~100%RH
  • Operating environment pressure:0~20bar
  • Operating environment air flow rate:0 ~1L/min
  • Communication:RS232
  • Power supply mode:AC/DC , AC preferential
  • DC power supply:4AHHigh-capacity lithium battery, allowing use for 10 hours after charged
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SFK278 High Voltage Switches Mechanical Properties Testing Instrument

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Introduction

  • 12 time channels, suitable for test break/close time, spring, synchronism for various switches. It is designed of 500KV anti-interference.
  • 1 sensor channel, resolution 0.1mm, 1mm, 10 photo-sensor, all directions installation pedestal, could test movement, speed and waveform parameters.
  • Internal DC operating power, could conduct current curve test and low voltage movement test. With various synchronous trigger methods, convenient for internal/external power control. External synchronous trigger sampling
  • Large screen LCD: allow various speed setting, indirect lever velocity measurement( such as angle), display and analyse of displacement, velocity, current waveform, user-defined two cursors to calculate velocity, data display and saving, PC data management software, RS232 communication and upload

Technical Parameters

  • Time measurement:0~999.9 ms, could measure fractures at the same time:≤12
    setting time during test:0~6s      resolution:0.1 ms
  • Opening range, overtravel and spring amplitude measurement
    Range :﹤500mm      resolution:1 mm
  • Measuring error: time measuring error:±1%   stroke measuring error:±1%
  • Use condition:
    Voltage: AC220V±10%
    Frequency:50HZ
    Power:≤60W
    Use temperature:-10℃~40℃    
    Humidity:≤90%RH
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SFK306 High Voltage Switches Mechanical Properties Testing Instrument

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Introduction

The instrument takes advantage of photoimpact technique, singlechip technique and reliable anti-electromagnetic radiation technique. It is suitable to test mechanical properties of various HV switches (vacant, bulk oil, short oil, SF6) and their relative parameters such as time, synchronism, spring, speed and running. It could record data sampling for six fractures at the same time with one move, as well as display and print the measuring date and current waveform for these fractures, or display and save contact time curve for one fracture.

Technical Parameters

  • Power supply:AC 220V; 50HZ±10% 
  • Use temperature:-40℃~ +40℃
  • Power:﹤55W

 

Sensor
Measuring item
Measuring range
Measuring accuracy
Measuring erroe
 
Mechanical sensor
time
0~999.9ms
0.1ms
±0.1ms
straight-line distance
0~999ms
1mm
±0.1mm
speed
18m/s
0.01m/s
±0.01m/s
 
Vacant sensor
time
0~999.9ms
0.1ms
±0.1ms
straight-line distance
0~40mm
0.5mm
±0.5mm
speed
2.5m/s
0.01m/s
±0.01m/s

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SFK010SF6 Gas Leak Detecting Instrument

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Introduction

  • Warning in SAEJ1627 various frequency
  • Optional reference leak detection source
  • Three colors, 6 sections, 18 grades warning
  • 7 grades of sensitivity available, rising the sensitivity to 64 times
  • Battery inspection function, with exact voltage display
  • Warning mute
  • Precise mechanical pump, allowing positive draft to go through the sensing head
  • Contact resettable button, contact key control
  • 14“(35.5mm)bendable stainless steel probe

Technical Parameters

  • Power supply: DC 3V,  two C size alkaline batteries
  • Inspection rule: guarantee value used for R12 、R22、 R134a is 14g/year
  • Inspection sensitivity: refrigerant used for SF6 and other halogen gas <3g/year
  • Loading period: continuous, limitless  
  • Battery lifetime: about 40h (normal use)
  • Response time: instant
  • Preheat time: about 2s
  • Max sensitivity: as SAEJ1627
  • Reset time: about 1s
  • Probe fixed-length: 35.5cm
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SFK157 Intelligent Loop Resistance Tester

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Introduction

This tester takes advantage of high frequency switching power supply and digital circuit techniques. It is compact, light, with constant current output, and portable, specially used for loop (contact) resistance measurement of switching control equipment.

Technical Parameters

  • Working power:AC220v±10%  50HZ
  • Measuring accuracy:Grade 0.5
  • Measuring range:0~1999µΩ  resolution:1µΩ
  • Running time:continuous
  • Measuring current:》100A/200A , DC , resolution:0.1A
  • Display:LCD, test result print
  • Dimension: 300 X 450 X 250 mm3
  • Weight:6.4kg
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manufactures and sells high voltage electric equipment. Our main products include high voltage complete test systems, testing instruments.

 

Vista & Mission

manufactures and sells high voltage electric equipment. Our main products include high voltage complete test systems, testing instruments.

 

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power transformer test system, instrument transformer test system, PD test system, various AC test systems, series resonant test system, impulse voltage/current test system, high voltage capacitive bridge, series high voltage standard capacitors, etc.