257D ADVANCEDENERGY | Alldatasheet
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Technical content
©2021 Advanced Energy Industries, Inc. The Monroe 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. The instrument offers a chopper-stabilized measurement technique that is drift free, even in ionized environments. An AC adaptor is provided to recharge the batteries and to operate the Monroe 257D during longer-term tests. PRODUCT HIGHLIGHTS Battery or line operation - AC power module included Remote probe for easy monitoring of hard-to-reach locations up to 1000 feet Recorder output for unattended monitoring Intrinsically safe sensors approved for use in hazardous locations with approved IS barriers Unmatched accuracy, stability and versatility Loop control for consistency in electrostatic tacking of materials Drift-free measurement with chopper stabalizer in ionized environments TYPICAL APPLICATIONS Monitor charge build-up on webs during lamination, coating, manufacturing, printing Check bonding during bagging, dumping, transport operations Static surveys in offices, on production lines,“static-free” workstations Prevention of dendritic discharge patterns on photographic and X-ray film Monitor static levels in textile manufacturingto prevent shocks to personnel, bunching and flying of product Ranges ±2kV/cm and ±20kV/cm Sensitivity
1 V/m and 10 V/m, respectively
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 to 200 Hz referred to input Response Speed 250 ms 10 to 90% (typical) HIGHLIGHTS MONROE 257D Portable, battery-operated fieldmeter for performing static surveys or for use as a diagnostic tool when troubleshooting problems caused by static build-up.
For international contact information, visit advancedenergy .com. sales.support@aei.com +1 970 221 0108 Specifications are subject to change without notice. Not responsible for errors or omissions. ©2021 Advanced Energy Industries, Inc. All rights reserved. Advanced Energy®, Monroe Electronics®, StatArc TM and AE® are U.S. trademarks of Advanced Energy Industries, Inc. TECHNICAL DATA Performance Specifications 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 to 200 Hz referred to input Response Speed 250 ms 10 to 90% (typical) Analog Output ± 10 kV/m = ± 1.0 V output (< 10 ohm impedance) Mechanical Specifications Weight 1.1 kg (2 ⅜ lb) with batteries Accessories Included Power supply, connecting cable, manual Environmental Specifications Operating Environment 25°C, ±10°C, Humidity 0 to 85% RH non-condensing, unaffected by ionized environment Electrical Specifications Batteries Built-in, rechargeable, gel-type, 12 V, 1.2 AH, >8 hours with backlight on - charging system onboard, <6 hours recharging time AC Power Adapter Power adapter supplied Input 100 to 240 VAC/ 47 to 63 Hz/260mA Probe Specifications Probe Built-in, rechargeable, gel-type, 12 V, 1.2 AH, >8 hours with backlight on - charging system onboard, <6 hours recharging time Probe Options Power adapter supplied Probe Operatnig Environment Power supply, connecting cable, manual ENG-ESD-Fieldmeter-Monroe-257D-235-01 03.20