320C ADVANCEDENERGY | Alldatasheet
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Technical content
©2021 Advanced Energy Industries, Inc. The Trek® 320C makes highly accurate, noncontacting measurement of electrostatic potentials of 1 mV to 100 V over a wide range of probe-to-surface distances. The Trek 320C is specifically designed for high sensitivity applications. The Trek 320C has adjustments to compensate for many sensitive testing conditions. A calibrated null voltage supply of ±10 volts nulls contact potentials when measuring voltages on dissimilar materials. The null voltage source may be used to null different work function voltages of the test surface or to function as a zero suppression voltage source. PRODUCT HIGHLIGHTS Response speed control adjusts the speed/noise trade-off of the Trek 320C AC response Self-locking drift/spacing null adjustent minimizesthe variation in monitored voltage values as the probe to test surface spacing changes Easy-to-read front panel 3.5 digit LED display Monitor the detected output voltage through a 1:1 voltage monitor output and a switch selectable scale of 10:1 or 20:1 voltage monitor output Patented low impedance probe assures measurement accuracy which is essentially independent of probe-to-test-surface spacing while eliminating the external environmental effects of high humidity and contamination, such as airborne dust, toner, ions and chemicals, on measurement accuracy. NIST-traceable Certificate of Calibration provided with each unit Measurement Range 0 to ±100 V DC or peak AC Sensitivity 1 mV Speed of Response Less than 300 ms for a 100 V step Measurement Accuracy Better than 0.05% of full scale Null Voltage Source 10 volt nulling supply for contact potential measurements Response Speed Control AC response adjusted for speed/ noise Drift Spacing/Null Adjustment Minimizes variations in voltage values as probe-to-test surface spacing changes AT A GLANCE TREK 320C Versatile instrument used for a variety of electrostatic applications including contact potential measurements, materials evaluation, and electret studies.
2 advancedenergy.com TREK ELECTROSTATIC VOLTMETER 320C TECHNICAL DATA Performance Specifications Measurement Range 0 to ±100 VDC or peak AC Sensitivity 1 mV Accuracy Voltage Monitor Output Better than ±0.05% of full scale Voltage Display Better than or equal to ±2 counts, referred to the voltage monitor Stability Drift with Time Less than 50 ppm/hour, noncumulative Drift with Temperature 1:1 monitor output Less than 50 ppm/°C 10:1/20:1 monitor output Less than 100 ppm/°C Mechanical Specifications Dimensions (H x W x D) 108 x 223 x 370 mm (4.25 x 8.75 x 14.5 in) Weight 3.6 kg (8 lb) Voltage Monitor Connector BNC connector Ground Receptacle Banana jack AC Line Cord Receptacle Standard three-prong line cord with integral fuse holder Electrical Specifications Line Supply Factory set for one of two voltage ranges: 90 to 127 VAC or 180 to 250 VAC, at 48 to 63 Hz (specify when ordering) Environmental Specifications Operating Conditions Temperature 0 to 40°C (32 to 104°F) Relative Humidity To 90%, noncondensing
Features
Null Voltage Source A calibrated 10-turn dial representing a 10-volt supply, with switch selectable polarity, used to produce zero volts output when the probe is coupled to a known zero volt surface. Also used to null contact potentials on dissimilar surfaces. Range ±10 volts Accuracy 1% Resolution 20 mV Probe-to-Surface Separation 1 mm (recommended) Response Speed Control A front panel potentiometer that adjusts the speed/noise tradeoff of the Trek 320C AC response Voltage Display 3½ digit LED display. Range Switch selectable for ±10 V or ±100 V full scale Resolution 10 V Range: 0.01 V 100 V Range: 0.1 V Zero Offset ±1 count, referred to the voltage monitor Sampling Rate 3 readings per second Drift/Spacing Null Adjustment This back panel adjustment minimizes the variation in monitored voltage values as the probe-to-test surface spacing changes. All specifications are with a probe-to-surface separation of 1 mm.
advancedenergy.com 3 TREK ELECTROSTATIC VOLTMETER 320C Trek 320C Electrostatic Voltmeter 320C-L Trek 320C-L (90 to 127 VAC) 320C-H Trek 320C-H (180 to 250 VAC) Probe
17014 Trek 3250 HIgh-Sensitivity Probe
Features (Continued) Voltage Monitor Output (1:1 ratio) A buffered 0 to ±100 V output providing a replica of the measured voltage Scale Factor 1:1 of the measured voltage Output Noise Less than 5 mV rms (measured using the true rms feature of the Hewelett Packard Model 34401A digital multimeter) Output Current 5 mA Output Impedance 100 W, nominal Voltage Monitor Output A buffered 0 to ±10 V output providing a replica of the measured voltage. Scale Factors 10:1 of the measured voltage or 20:1 of the measured voltage (switch selectable) Output Current 5 mA. Output Impedance 0.1 W, nominal. TECHNICAL DATA
For international contact information, visit advancedenergy .com. sales.support@aei.com +1.970.221.0108 ABOUT ADVANCED ENERGY Advanced Energy (AE) has devoted more than three decades to perfecting power for its global customers. AE designs and manufactures highly engineered, precision power conversion, measurement and control solutions for mission-critical applications and processes. AE’s power solutions enable customer innovation in complex semiconductor and industrial thin film plasma manufacturing processes, demanding high and low voltage applications, and temperature-critical thermal processes. With deep applications know-how and responsive service and support across the globe, AE builds collaborative partnerships to meet rapid technological developments, propel growth for its customers and power the future of technology. Specifications are subject to change without notice. Not responsible for errors or omissions. ©2021 Advanced Energy Industries, Inc. All rights reserved. Advanced Energy®, Trek®, and AE® are U.S. trademarks of Advanced Energy Industries, Inc. ENG-ESVM-Trek-320C-235-02 4.21