Trek 341B High-Voltage Electrostatic Voltmeter - Manual

The Trek Model 341B is a DC-stable, precision electrostatic
voltmeter for making noncontacting surface voltage
measurements. The 341B employs a field-nulling technique that
achieves DC stability and high accuracy even if the probe-to-
surface spacing changes. This permits measurements of either
stationary or moving surfaces without the need to establish fixed
spacing to maintain accuracy. The instrument also utilizes a
patented probe design that eliminates the need for close tolerance
components which significantly improves noise and drift under
conditions of high humidity and wide temperature ranges.
Trek Model 341B
High-Speed, High-Voltage Electrostatic Voltmeter
Key Specifications
! Measurement Range: 0 to ±20 kV DC or peak AC
! Measurement Accuracy: Better than ±0.1% of full scale
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Speed of Response: Less than 200 µs for a 1 kV step
Typical Applications Include
! Charge accumultion monitoring of LCD production processes
! Monitoring surface potentials in the electrostatic painting process
! Measuring of electrostatic potentials on polymers, rubber, fabrics and paper
Features and Benefits
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Superb noise and drift performance
Precision voltage monitor output
Monitor provides a low voltage replica of the measured electrostatic potential for
monitoring purposes or for use as a feedback signal in a closed loop system
Easy-to-read LED display
Optional probes offer versatility (order separately)
Can be operated on a bench top, or with optional hardware, in a standard 19-inch rack
NIST-traceable Certificate of Calibration provided with each unit
compliant
TREK, INC. • 190 Walnut Street • Lockport, NY 14094 • USA • 800-FOR TREK
716-438-7555 • 716-201-1804 (fax) • www.trekinc.com • [email protected]
Available Probes Available Configurations
Standard Resolution Model 341B
PN 17157: Model 3450 Side-viewing PN 341B-L, 341B Electrostatic Voltmeter (90-127 V AC)
PN 341B-H, 341B Electrostatic Voltmeter (180-250 V AC)
High Temperature (up to 100°C) Model 341B-1 (for use with 3460-1 Line Driver)
PN 17284 Model 3455ET End-viewing PN 341B-1-L, 341B-1 Electrostatic Voltmeter (90 to 127 V AC)
PN 17285 Model 3453ST Side viewing PN 341B-1-H, 341B-1 Electrostatic Voltmeter (180 to 250 V AC)
PN 17181, Model 3460 Line Driver (used with 341B-1)
(
Model 341B-1 utilizes a separate line driver for extended probe cable lengths)