• Monroe 257D 手持式静电量测仪
  • Monroe 257D 手持式静电量测仪
  • Monroe 257D 手持式静电量测仪
  • Monroe 257D 手持式静电量测仪

Monroe 257D 手持式静电量测仪

Battery or line operation - AC power
module included
• Two ranges:
±2kV/m and ±20kV/m
• Remote probe
for easy monitoring of hard-to-reach
locations up to 1000 feet
• Chopper stabilizer
for accurate measurements in ionized
environments
• Recorder output
for unattended monitoring
• Unequaled accuracy, stability and
versatility
型号 : Monroe 257D

The model 257D is a portable, battery-operated fieldmeter for performing static surveys or for use as a diagnostic tool when troubleshooting problems caused by static buildup.

Ranges:
±2kV/cm and ±20kV/cm
Sensitivity:
1 V/m and 10 V/m, respectively
Static accuracy:
Better than 5% of reading
Drift:
<30 V/m/hour, non-cumulative after 30-minutes stablization, referred to input
Noise:
<10 V/m rms, 0 - 200 Hz referred to input
Response speed:
250 ms 10% to 90% (typical)
Analog output:
± 10kV/m = ± 1.0V output (< 10 ohm impedance)
Batteries:
Built-in, rechargeable, gel-type, 12V, 1.2AH, >8 hours with backlight on -charging system on-board, <6 hours recharging time
AC power adapter:

Power adapter supplied:

Input: 100 - 240 VAC/ 47 to 63 Hz/260mA

Dimensions:
10.5”x6.5”x2.6” (26.7x16.2x6.7 cm)
Weight:
2lbs., 6oz (1.1kg) w/batteries
Operating environment:
25°C, ±10°C, 0-85% RH non-condensing, unaffected by ionized environment
Probe:
1036F-5, 1.75” dia. x 1.25:H (4.4 x3.2cm) 8oz (0.2kg) with 10 ft. (3m) cable
Probe Options:

Any of our Model 1036 probes will work with the Model 257D. A full range of probe sensitivities and different case styles are available. Please refer to our Model 1036 literature. Optional cable lengths up to 1000 ft for remote operation are available.

Probe operating environment:
-30°C to 100°C, non-condensing
Accessories Included:
Power supply, connecting cable, manual.
Industry approval:
• Probe approved by Factory Mutual Research Corporation as intrinsically safe for use in Class I, Division 1, Groups C and D hazardous locations when used with approved IS barriers.
                           

                      

                             

   

                               

                 

      

      

  
  • Two switch-selectable measurement ranges (2 kV/cm and 20 kV/cm)
  • Recorder output to pass measurements to auxiliary instruments to display or record the data
  • Intrinsically safe sensors are approved for use in hazardous locations when used with approved IS barriers
  • Remote sensors can be located up to 1000 feet from the monitor
  • Chopper-stabilized measurement technique is drift free, even in ionized environments
  • An AC adaptor is provided to recharge the batteries and to operate the Model 257D during longer-term tests

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