FLUKE
- Ampe kìm đo mA Fluke 772
Model:
Fluke 772
Hãng
sản xuất: FLUKE – MỸ 
Tham
khảo: http://www.fluke.com/fluke/vnen/clamp-meters/Fluke-772-Milliamp-Process-Clamp-Meter.htm?PID=69441
Tính năng Ampe kìm đo mA Fluke 772:
- Best in
     class 0.2 % accuracy
 - 0.01 mA
     resolution and sensitivity
 - Measure
     4 to 20 mA signals without ”breaking the loop”
 - Measure
     mA signals for PLC and control system analog I/O
 - Dual
     backlit display with both mA measurement and percent of 4 to 20 mA span
 - Measurement
     Spotlight illuminates hard to see wires in dark enclosures
 - Detachable
     clamp with extension cable for measurements in tight locations
 - Measure
     10 to 50 mA signals in older control systems using the 99.9 mA range
 - Automatically
     change the 4 to 20 mA output for remote testing
 - Power
     saving features, auto-off, backlight timeout extend battery life
 - Hold
     function captures and displays changing measurements
 - Measure
     4 to 20 mA signals with in-circuit measurement
 - Simultaneous
     mA in-circuit measurement with 24V loop power for powering and testing
     transmitters
 - Source
     4 to 20 mA signals for testing control system I/O or I/Ps
 - mA
     output linear ramp or 25% step output
 - Automatically
     change the 4 to 20 mA output for remote testing
 
Thông số kỹ thuật Ampe kìm đo mA Fluke 772:
| 
   
Diameter of measurable
  conductor 
 | 
  
   
0.177” or 4.5 mm max 
 | 
 
| 
   
Operating temperature 
 | 
  
   
-10 to 50 ºC 
 | 
 
| 
   
Storage Temperature 
 | 
  
   
-25 to 60ºC 
 | 
 
| 
   
Operating Humidity 
 | 
  
   
< 90% @ <30 ºC,
  < 75% @ 30 to 55ºC 
 | 
 
| 
   
Operating Altitude 
 | 
  
   
0 to 2000 m 
 | 
 
| 
   
IP Rating 
 | 
  
   
IP 40 
 | 
 
| 
   
Size 
 | 
  
   
59 x 38 x 212 mm,
  (2.32 x 1.5 x 8.35 in.) 
 | 
 
| 
   
Weight 
 | 
  
   
260G, (9.1 oz.) 
 | 
 
| 
   
Vibration 
 | 
  
   
Random 2 g, 5 to 500
  Hz 
 | 
 
| 
   
Shock 
 | 
  
   
1 meter drop test
  (except the jaw) 
 | 
 
| 
   
EMI/RFI 
 | 
  
   
Meets EN61326-1 
Note: For current measurement w/ JAW, add 1mA to specification for EMC field strengths of 1V/m up to 3V/m.  | 
 
| 
   
Temperature
  Coefficient 
 | 
  
   
0.01% ºC 
(<18? or > 28?)  | 
 
| 
   
Power, battery life 
 | 
  
   
(2) AA 1.5 V Alkaline,
  IEC LR6, 40 hours typical 
 | 
 
| 
   
Warranty 
 | 
  
   
Three years for
  electronics one year for cable and clamp assembly 
 | 
 
| 
   
Functional Specifications 
 | 
 |
| 
   
mA measurement 
(Measured by clamp)  | 
  
   
Resolution and
  Range:     0 to 20.99 mA 
Accuracy: 0.2% + 2 counts Resolution and Range: 21.0mA to 100.0 mA Accuracy: 1% + 5 counts  | 
 
| 
   
mA measurement 
(Measured in series with test jacks) Resolution and Range:  | 
  
   
Resolution and
  Range:     0 to 24.00 mA 
Accuracy: 0.2% + 2 counts  | 
 
| 
   
mA source (Maximum mA
  Drive: 
24 mA into 1,000 ohms) Resolution and Range:  | 
  
   
Resolution and
  Range:     0 to 24.00 mA 
Accuracy: 0.2% + 2 counts  | 
 
| 
   
mA simulate 
(Maximum voltage 50 V dc) Resolution and Range:  | 
  
   
Resolution and
  Range:     0 to 24.00 mA 
Accuracy: 0.2% + 2 counts  | 
 
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