供应ME-279 盘面式静电电位计
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仪器分三种型号: ME-279/110V , ME-279L , ME-279/ 220V ；
测量范围：±3000V自动变换极性 ；
：0.1％±0.003％/℃ ；
响应速度：<3ms ；
频率响应：>300Hz±3dB ；
漂移：<0.01V/hr ；
杂讯：<0.3Vrms或2Vp-p ；
表面解析度：1.75mm之Model1034E&S探棒在0.5mm距离下，解析度为2.5mm ；
记录用输出：典型为BNC接头±18V
单位：CE、UL
需搭配：Model 1034系列探棒
电输入电压： 110V或220V可选
279
ISOPROBE® Electrostatic VoltmeterThe Model 279 ISOPROBE® Electrostatic Voltmeter measures surface potential in the range of ±3000 volts without contacting the measured surface It features high-accuracy (0.1%), drift-free measurements that are almost fully independent of probe-to-surface separation. Its low-profile design is optimized for rack mounting of multiple 279's in a minimum space.
Side- and end-viewing probes accommodate various mounting requirements. Specialty high-resolution probes allow the 244A to resolve spot diameters as small as 1 mm. Probes include air purge capability to prevent ingress of particulate.
• Electrophotographic measurements• Radiation effect studies• Electret research• Electric field studies• Process monitoring and control• Integrated circuit manufacturing and handling A. Applications:
Model 279 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:
?? Electrophotographic and xerographic measurements
?? IC manufacturing and handling
?? Materials evaluation
?? Electret research
?? Static electrification, electric field studies
?? Process monitoring and control
B. Features:
?? Low profile half rack size for multi-channel applications
?? Full complement of interchangeable probes
?? Selectable recorder output range
?? LED meter with “blackout switch” for darkroom applications
C. Range:
0 to ±3000 volts DC
D. Accuracy:*
0.1% of full scale, ?0.003%/?C over +20 to +40?C range (at recorder output). Useable to +50?C.
E. Speed of response:*
For typical input step: <3ms (10% to 90%)
for 1kV step: <2½ms (10% to 90%)
for 2kV step: <3½ms (10% to 90%)
for 3kV step: <4ms (10% to 90%)
F. Settling time:
<6½ms to 1% of final value.
G. Frequency response:
Small signal frequency response typically ?3db to >300Hz.
H. Drift:*
<0.01V/hr after 1 hr stabilization (0.003V/hr typical). Not measurably affected by 10?C temperature
variation or changes between 10% and 90% relative humidity.
Page 2
I. Noise:*
<0.3mV rms or 3 millivolts peak-to-peak wide band at 1/1000 output.
J. Surface resolution:
Determined by probe aperture size and surface-probe separation. Standard type 1034E & S probes
with 0.07” (1.75mm) aperture will resolve a 0.10” (2.5mm) spot at 0.02” (0.5mm) separation.
K. Recorder output:
Compressed analog output is input divided by 1000 (standard) or 100 or 200 (factory selectable)
Typical maximum dynamic range at isolated BNC connector is ?18 volts for external loads greater
than 10k?.
L. Output filter:
Bessel low pass filter with 1.2ms constant delay.
M. Size:
1.7 x 8.2 x 15.1 inches (44 x 208 x 384mm), 1.75” rack mounting available (1 or 2 per rack).
Weight 4 lb. (1.8kg).
N. Power requirement:
100, 120, 230 or 240 VAC, ?10%, 50/60Hz, 15 watts.
Fuse 1/4A SB for 100 & 120 V (Littelfuse 313.250 or equiv.)
Fuse 1/8A 5x2mm for 230 & 240 V (Littelfuse 217.125 or equiv.)