Monroe Electronics Electrostatic Voltmeter - Isoprobe® - model 279L - Manual (Page 4)

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SECTION 1
SPECIFICATIONS
A. Applications:
Model 279L ISOPROBE ® ELECTROSTATIC VOLTMETER takes advantage of Monroe’s years of experience in
design of reliable instruments for NON-CONTACTING measurement of electrostatic potential combined with
modern semiconductor technology. A full spectrum of proven-design interchangeable probes exposes broad new
areas for exploratory research as well as providing a precision instrument for routine applications in electrostatic
measurements. Some typical and potential applications include:
 Disk media research
 IC manufacturing and handling
 Materials evaluation
 Contact potential measurements
 Bioelectric field studies
 Process monitoring and control
B. Features:
 Low profile half rack size for multi-channel applications
 Full complement of interchangeable probes
 Analog recorder output
 LED meter with “blackout switch” for darkroom applications
C. Range:
0 to ±300 volts DC
D. Accuracy:*
0.1% of full scale or 10mV, whichever is greater, 0.003%/C over +20 to +40C range (at recorder
output). Useable to +50 C.
E. Meter resolution:
100mV (4 ½ digit LCD)
F. Speed of response:*
3ms, 10% to 90%, achievable at probe to surface spacing up to 0.1” with low resolution probe.
G. Settling time:
<6½ms to 1% of final value.
H. Frequency response:
Small signal frequency response typically 3db to >300Hz.