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158A - 1

CharqecJPIate Monitor The Trek Model 158A Charged Plate Monitor is the premier instrument to evaluate the performance of air ionization systems. It features a user-friendly large 7 inch screen that is active through either touchscreen control or corresponding function keys. The compact design supports superior data collection and data storage capability. The data is displayed in color and may be stored internally or can be easily transferred to a USB flash drive or other USB device. A charged-plate assembly is required and is sold separately (6 inch charged-plate shown). Key Specifications . Monitored Voltage Range: . Bandwidth (-3 dB): . Decay Mode Thresholds: 0 to ±1100 V DC or peak AC DC to 80 Hz Programmable from 1 to ±1000 V in 1 V increments The Model 158A may be ordered as a kit which includes all items listed below. - Model 158A Charged Plate Monitor - 150 mm x 150 mm (6” x 6”) Charged Plate - 25 mm x 25 mm (1” x 1”) Charged Plate - Walking Test Adaptor Assembly - AC Adaptor, 24v / 1.7a / 2.1mm Plug - USB Type A Male To USB Type B Male Cable 6ft - Power Cord For AC Adaptor - Custom Patch Cord, ST-BAN-PL9’,ST-BAN-PL - Charged Plate Handle - Mini-Tripod For Charged Plates - Model 158A Custom Carry Case Typical Applications Include • Performance evaluation of air ionization systems • ESD Test Equipment • ESD Audit Equipment • Material Dissipation Testing • Site Specific Contacting Voltage Measurement • Static Charge Monitoring • Voltage measurement of floor materials and footwear in combination with a person (ANSI ESD STM97.2 and IEC 61340-4-5) Features and Benefits • Touch screen or function key control • Long battery life • User-friendly compact design with superior data collection and storage capability • Unique color graphics chart display • PC memory card port for ample data storage and easy data transfer • Programmable start and stop voltage for (+) and (-) decay time ionizer tests • 0.1 V plate voltage resolution • Compliance to IEC 61340-5-1 and ANSI/ESD STM3.1 • NIST-traceable Certificate of Calibration provided with each unit . C C compliant units available TREK, INC. • 190 Walnut Street • Lockport, NY 14094 • USA • 800-FOR TREK 716-438-7555 • 716-201-1804 (fax) • •

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158A - 2

Model 158A SpecificationsPerformance Monitored Voltage Range 0 to ±1100 V DC or peak AC Bandwidth (-3 dB) DC to 80 Hz Zero Stability (referred to plate voltage) Drift with Time (no incident ion flow) Drift with Temperature Decay Mode Thresholds Start Voltage Start Accuracy Stop Voltage Less than 6 V/minute Less than 10 mV/°C, noncumulative Programmable from 1 to ±1000 V in 1 V increments Within ±1 V of programmed start voltage Programmable from 0 to ±999 V in 1 V increments Stop Accuracy Within ±1 V of programmed start voltage or ±0.2 V if set less than or equal to 90 V Decay Timer...

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