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> Trek mdl 347 609D-6 609E-6 electrostatic voltmeter
Trek mdl 347 609D-6 609E-6 electrostatic voltmeter
Trek Electrical Measurement System
* Trek Model 347 Electrostatic Voltmeter
* Corpoate Website: http:// /products/347.asp
* The Trek Model 347 is a precision DC stable electrostatic voltmeter for making noncontacting surface voltage measurements in the range of 0 to 3 kV DC or peak AC. Industrial applications include surface voltage measurements of photoconductors or dielectric surfaces, charge monitoring in semiconductor production, or measuring electrostatic potentials on film, polymers, and paper.
The Model 347 employs a field-nulling technique for noncontacting voltage measurement 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 Model 347 patented probe design, when compared to other probe designs, significantly improves noise and drift performance in the presence of contaminating particulates or under conditions of high humidity and wide temperature ranges.
The Digital Enable feature provides a connection for a remote device to turn on and off the internal high-voltage power supply. This makes the Model 347 suitable for automated or computer-controlled systems.
* Trek Model 609E-6 High Voltage Amplifier
* Corporate Website: http:// /products/609E-6.asp
The Trek Model 609E-6 high-voltage DC-stable power amplifier is designed to provide precise control of bi-polar output voltages in the range of 0 to 4 kV DC or peak AC with an output current capability of 20 mA DC or peak AC. The Model 609E-6 can be configured as a noninverting amplifier with a fixed gain of 1000 V/V, or as an inverting or differential amplifier.
Applications for the Model 609E-6 include AC and DC biasing of electrophotographic charging rollers, electrorheological fluid research, and dielectric material characterization. Features include an all-solid-state design, a slew rate greater than 150 V/ s, a large signal-bandwidth of greater than 6 kHz, and low noise operation. The four-quadrant active output stage sinks or sources current into reactive or resistive loads throughout the output voltage range. This technique is essential for achieving the accurate output responses and high slew rates demanded by reactive loads.
The Model 609E-6 features a current trip or limit that is adjustable for 0 to 20 mA using the Current Trip/Limit Adjust potentiometer on the front panel. When the Model 609E-6 enters a current trip condition, the high-voltage output is disabled, the Trip Status indicator will illuminate and the Trip Monitor output will provide a TTL low.
A Digital Enable feature provides a connection for a remote device to turn the high voltage on and off.
Trek Model 609D-6 High Voltage Amplifier
