TB-3090 Digital Static Field Meter

• Electrostatic Field Meter, measures static charge and polarity on objects up to ±19.99 kV at a distance of 1"
• Chopper-Stabilized Sensor, yields accurate measurements in both normal and ionized environments
• Dissipative Enclosure with 7 mm Ground Snap, grounds the meter when held by a grounded operator or bonded to ground using the included ground cord
• Rotary Zero Knob, sets the zero-reference point with finely tuned precision
• LED Range Indicator, assists with placing the meter at the correct distance from the object being measured
• Hold Button, allows the measurements to be retained for easy reading and extends battery life
• 19440 Ionization Test Upgrade Kit, provides the accessories needed to test the balance (offset voltage) and discharge times of air ionizers
• 19441 Aluminum Conductive Plate Accessory, allows the operator to measure the balance (offset voltage) of air ionizers
• NIST Calibrated with Certificate Included, calibrated with accepted procedures and standards traceable to the National Institute of Standards and Technology. For more information on the calibration of Desco products, see Calibration.
• Made in the United States of America.

Specifications

• Performance Measurement Range: 0 to ±19.99 kV / inch
• Performance Measurement Accuracy: Better than ±5% of reading, ±2 counts
• Performance Measurement Stability: ±10 counts
• Ranging System: LED distance indicator; aligned targets indicate 1"
• Range: LED distance indicator
• Rotary Zero Knob: Sets the zero-reference point
• Low Battery Indicator: An LCD icon indicates when the battery is low
• Hold Switch: Retains the LCD display reading when depressed
• Front Panel Meter Voltage Display: 3-1/2 digit LED display
• Sampling Rate: 3 readings per second
• Dimensions: 0.9" H x 2.8" W x 4.9"L (24 mm x 70 mm x 126 mm)
• Weight: 4.9 oz. (140 g) with battery
• Operating Temperature: 50 to 86°F (10 to 30°C)
• Relative Humidity: To 80%, non-condensing
• Altitude: To 2000 m
• Certifications: CE
• Power Requirements: One (1) 9-volt alkaline battery
• Operating Time: Greater than 50 hours, with a new battery at 21°C continuous