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 Model 244A-2 Isoprobe Electrostatic Voltmeter
Small, lightweight instrument measures ±3 kV quickly (<2 ms to 1 kV). Has 4-digit LCD display and ±3 volt analog output. Also available Model
244AK-2 has ±15 volt output (1/200 of input). Ideal for electrophotographic, xerographic, electret applications and for charge accumulation monitoring and control.
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Feature 1:
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Fast speed of response
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Feature 2:
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± 3kV range, auto polarity
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Feature 3:
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Accuracy better than 0.1% at almost any probe-surface spacing
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Specification:
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Size
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10cm (4") H x 21.6cm (8%") W x 35cm (14")D).
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Weight
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3.2 kg (7 Lb)
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Power Requirements
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100, 115 or 230 VAC ± 10%, 50-60Hz. 15W max.
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Meter Range
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± 3 kV, auto-polarity
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Setting Time:
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3 ½ mS for 1% of step input @ 1 kV, measured at probe.
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Surface Resolution:
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Determined by probe aperture size and surface-probe
separation. Standard Type 1017AE & 1017AS probes with 1.75mm (0.07") aperture will resolve a 2.5mm (0.10") spot @ 0.5mm (0.02") separation.
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Step Response:
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Response Speed for typical input step: < 3mS (10%-90%)
1000V step: < 2 ½ mS 10% to 90%)
2000V step: < 3 ½ mS (10%-90%)
3000V step: < 4 mS (10%-90%)
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Frequency Response:
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Small signal frequency response typically ± 3dB to >300Hz.
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Drift:
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< 0.01V/hr after 1 hr warmup (0.003V/hr
typical). Not measurably affected by 10 ° C temperature variation or changes between 10% and 90% relative humidity.
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Noise:
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< 0.3Vrms or 2V peak-to-peak wide band. (referred to input).
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Recorder Output
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BNC, Compressed analog output (1/1000 of input or
optional Model 244K, 1/200 of input) for external loads >=1K ohms.
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Display Type:
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LCD
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Accuracy
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0.1% ± 0.003%/° C over 20° -40° C range (at recorder output). Usable to 50° C.
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Model 244A-2 ISOPROBE Voltmeter Products and Accessories
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Description
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Part Number
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Unit Price
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Model 244A-2 Isoprobe Electrostatic Voltmeter, 110V, Probes sold separately
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M244A/110
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$ 2,330.00
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ORDER PAGE
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Model 244A-2 Isoprobe Electrostatic Voltmeter, 10V, Probes sold separately
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M244A/100
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$ 2,330.00
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Model 244A-2 Isoprobe Electrostatic Voltmeter, 220V, Probes sold separately
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M244A/220
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$ 2,560.00
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Probes for all of the above sold separately and listed below
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Probes
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Part Number
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Unit Price
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Model 1017A probes are used with Isoprobe® electrostatic voltmeter Model
244A-2. The probes are 5/16" by 5/16" by 3" long and equipped with a 10-foot cables.
The end view and side view configurations provide the user with optional mounting
positions where space constraints may be a problem.
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Model 1017AE Standard Miniature Probe, End Viewing
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M1017AE
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$ 835.00
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Model 1017AS Standard Miniature Probe, Side Viewing
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M1017AS
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$ 835.00
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Model 1017AEH High Resolution Probe, End Viewing
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M1017AEH
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$ 1,125.00
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Model 1017AEL Low Resolution Probe, End Viewing
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M1017AEL
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$ 1,045.00
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Model 1017ASL Low Resolution Probe, Side Viewing
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M1017ASL
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$ 1,045.00
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Model 1017AEJ Split Aperture Probe, End Viewing
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M1017AEJ
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$ 1,045.00
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Model 1017AT Transparent Miniature Probe
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M1017AT
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$ 1,045.00
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