The Trek Model 706B portable electrostatic voltmeter is designed to perform highly accurate noncontacting surface electrostatic voltage measurements.
Applications include measurement of photoreceptor surfaces in copiers and laser printers.
The Trek Model 706B E.S. [Electrostatic] Voltmeter provides measurement ranges of 0 to +1 kV or 0 to -1 kV (switch selectable) and employs an easy to read 3½ digit liquid crystal display to indicate the measured electrostatic voltage. Accurate electrostatic measurements can be performed over a probe to test surface spacing of 1 mm to 5 mm.
A voltage-nulling technique is employed in the Model 706B that achieves DC stability and high accuracy even if the probe-to- measured surface spacing varies during use, this permits measurement of rotating electrophotography drums without concern for the effects of measurement accuracy due to drum eccentricities.
The probe design provides low noise and drift performance even in the presence of contaminating toner particles or under conditions of high humidity and temperature. The small durable probe has a cable length of 183 cm (72).
The Model 706B is lightweight, battery operated, and packaged in a rugged enclosure that provides a convenient probe storage area.
Switch Selectable Ranges:0 to +1 kV DC or0 to -1 kV DC
3½ Digit LCD Display
DC-Stable Probe with Side Viewing Aperture Orientation
Low Noise
Durable Design
RoHS Compliant
CE Compliant
Model 706B Specifications
All specifications are at a probe-to-surface separation of 3 mm unless otherwise noted
Measurement Range :0 to +1 kV or -1 kV DC (switch selectable)
Accuracy: Better than 0.5% of full scale
PROBE
Recommended Probe-to-Surface Separation Distance : 1 mm to 5 mm
Trek Model 701P-76S Probe Dimensions: 8.7 mm diameter x 70 mm L
Caution: The metallic components of the probe are driven to the measured surface voltage level with a current capability of ±0.5 milliamperes. These metallic surfaces should not be connected to ground or touched during operation.
Cable Length: 1830 mm
Aperture Size (oval shaped): 3.18 mm W x 6.35 mm L
Aperture Orientation: Side viewing
FEATURES
Range Switch: A two-position switch is used to select the measurement range of either 0 to +1 kV or 0 to -1 kV.
TEST/READ Switch: In the TEST position, if the digital display indicates a value lower than 1100, the batteries should be replaced. In the READ position, the measurements are displayed
Voltage Display: 3?digit liquid crystal display
Range: 0 to ±1000 V
Resolution: 1 V
Zero Offset: Less than ±1 count
Sampling Rate: 3 readings per second
Power Requirements: Two (2) 9-volt alkaline batteries
Operating Time: 10 hours after battery replacement
Operating Conditions:
Temperature:5 °C to 35 °C
Relative Humidity: To 85%, noncondensing
Dimensions: 39 mm H x 130 mm W x 134 mm D
Weight: 455 g (1 lb), with batteries
Ground Receptacle: The green banana jack must be connected to ground to maintain measurement accuracy.
Power On/Off: A two-position toggle switch
