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Operators’ Manual

for

Monroe Electronics, Inc.

Model 257D

Portable Electrostatic Fieldmeter

P/N 0340176

257D/100

110309

Summary of Contents for 257D

Page 1: ...Operators Manual for Monroe Electronics Inc Model 257D Portable Electrostatic Fieldmeter P N 0340176 257D 100 110309...

Page 2: ...Page 4 BACKLIGHT Page 4 RANGE Page 4 TEST Page 4 ZERO Page 4 STATUS Page 4 MAINTENANCE Section 5 Page 5 Precautions Page 5 Cleaning Page 5 Battery Page 5 Calibration Page 5 PROBE INFORMATION Section 6...

Page 3: ...n re chargeable gel type 12 V 1 2 AH 8 hours with backlight on charging system on board 6 hours re charging time DC power Power adapter supplied Input 100 240 VAC 47 to 63 Hz 400mA Output 18 VDC 840mA...

Page 4: ...put for monitoring A standard banana jack and mating cable with clip is provided for grounding purposes The carrying case has storage space for the probe manual and accessories Applications One major...

Page 5: ...o mount the probe 1 cm from the material under test so long as the input signal remains less than 20kV cm The Model 1036F 5 is calibrated for 20kV cm at 1cm spacing The backside of the probe assembly...

Page 6: ...e field is less than 2 kV cm D TEST In a normally functioning system when this button is pressed the meter and output will immediately go to a significantly more negative value than the measured value...

Page 7: ...for information about probe cleaning Battery Need for battery charging is indicated when the STATUS light begins to flash an alternating red green signal The instrument will continue to operate from...

Page 8: ...y standardized probe instrument combination is dependent upon the gradient cap on each probe Thus the full scale sensitivity for any given system can be determined by inspecting the gradient cap on th...

Page 9: ...rallel and separated by a distance d and have side dimensions of at least 5d The ground plate has a hole in its center just large enough to provide clearance around the probe so that the probe does no...

Page 10: ...ndards Association standard ISA S7 3 1975 or be filtered with a filter such as a Koby Junior filter available from Koby Inc 297 Lincoln Street Marlboro Massachusetts 01752 This filter will provide suf...

Page 11: ...9...

Page 12: ...T ELECTROSTATIC MEASUREMENT TECHNIQUES AND THEIR LIMITATIONS Presented at the ELECTRICAL OVERSTRESS EXPOSITION April 24 26 1984 LT 21 R G CUNNINGHAM Eastman Kodak Co Use of Fieldmeters for Charge Meas...

Page 13: ...repairing or replacing the non conforming goods and or defective work and in accordance with the foregoing Monroe Electronics shall not be liable for any other damages either direct or consequential...

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