Trek Model 156A Charged-Plate Monitor System is designed to provide quantitative measurements of the effectiveness of air ionization systems, as to audit ionizer performance. Model 156A features two modes of operation, a decay mode with easy-to-program start and stop voltages, and a float mode.The Model 156A tests the efficiency of an ionizer’s ion production by timing how long it takes air ions produced to discharge a floating plate that has been pre-charged to either a positive or negative value. The Model 156A also tests the balance between positive and negative air ions by measuring the offset voltage generated on a floating
plate due to an imbalance of positive and negative air ions impinging on the plate from the ionizer.
Customizable measurement capacitance provides assurance that ESD process needs are met in manufacturing and that there is compliance to ANSI/ESD-STM3.1 and IEC 61340-5-1.
Extremely low offset and drift ensures high accuracy, making it ideal for applications requiring critical ion balance such as GMR and TMR manufacturing areas
Compact and lightweight, for easy portability within a facility
NIST-traceable Certificate of Calibration provided with each unit
CE compliant
Range:0 to ±1100 V DC or peak AC.
DC Accuracy：Better than 0.1% of full scale
Output Impedance：Less than 0.1Ω
Small Signal Bandwidth (-3 dB):DC to 1 kHz
Large Signal Bandwidth:DC to 10 Hz
Plate Voltage Digital：Panel Meter：3.5 digit red LED display.
Range： 0 to ±1100 V.
Resolution： 1 volt.
Accuracy： Better than 0.1% of full scale ±1 count.
Decay Time Digital：Panel Meter
4-digit red LED display.
Range： 0 to 9999 seconds
Operating Conditions：Temperature ：5°C to 35°C (41°F to 95°F)
Relative Humidity： To 80%, non-condensing
Altitude： To 2000 m (6561.68 ft.)
Dimensions： 83 mm H x 318 mm W x 280 mm D(3.25" H x 12.5" W x 11" D)
Weight ：2 kg (4.4 lb.)
