370 ADVANCEDENERGY | Alldatasheet
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©2021 Advanced Energy Industries, Inc. The Trek® 370 precision electrostatic voltmeter for non-contacting surface voltage measurements in the range of 0 to ±3 kV DC or peak AC. The Trek 370 employs an electrostatic field-nulling technique which achieves high DC stability and high measurement accuracy even if the probe to measured surface spacing changes. This permits measurements of either stationary or moving surfaces without the need to establish fixed spacing to maintain accuracy. PRODUCT HIGHLIGHTS Automatic gain control eliminates manual adjustment when changing probes or changing the probe to measured surface separation One step, push-button zeroing automatically adjusts the output to zero volts when the probe is coupled to a known zero volt surface Precision voltage monitor monitor provides a low-voltage replica of the measured electrostatic voltage for external monitoring purposes, or for use as a feedback signal in a closed-loop system Digital enable allows an external device to turn the internal HV power supply on/off Operated on a bench top, or with optional hardware, in a standard 19-inch rack NIST-traceable Certificate of Calibration provided with each unit Very High Speed Response Less than 50 ms for a 1 kV step Measurement Range 0 to ±3 kVDC or peak AC Measurement Accuracy Better than ±0.05% of full scale AT A GLANCE TREK 370 Non-contacting electrostatic voltmeter provides precise surface voltage measurements in the range of 0 to ±3 kVDC or peak AC.
2 advancedenergy.com TREK ELECTROSTATIC VOLTMETER 370 TECHNICAL DATA Performance Specifications Measurement Range 0 to ±3 kVDC or peak AC Accuracy Voltage Monitor: Better than ±0.05% of full scale Voltage Display: Better than ±0.1% of full scale ±1 count, referred to the voltage monitor. Speed of Response Less than 50 ms for a 1 kV step (10 to 90%) Stability Drift with Time: Less than 150 ppm/hour, noncumulative Drift with Temperature: Less than 100 ppm/˚C Probe-to-Surface Separation 2 mm ± 1 mm (recommended) Voltage Monitor Output A buffered output providing a low-voltage replica of the measured voltage. 1/200, 1/300, 1/600, 1/1000 options available. (Offset Voltage and Output Noise specifications vary based on output scale factor.) Scale Factor 1/100th of the measured voltage Offset Voltage Less than 10 mV (at 1/100th scale) Output Noise Less than 20 mV rms (at 1/100th scale) Output Impedance Less than 0.1 W Output Current Limit ±10 mA Mechanical Specifications Dimensions (H x W x D) 108 x 233 x 430 mm (4.25 x 8.75 x 17 in) Weight 5 kg (11 lb) Digital Enable BNC connector Voltage Monitor Output Connector BNC connector Ground Receptacle Binding post Operation Conditions Temperature 0 to 40°C (32 to 104°F) Relative Humidity To 85%, noncondensing Altitude To 2000 m (6561.68 ft) Low-Voltage Safety Compliance EN 61010-1 Overvoltage Category CAT II: Local-level mains, appliances, portable equipment Pollution Category Degree 1: Operate in environments where no pollution or only dry, nonconductive pollution occurs. Electrical Specifications Line Voltage Factory set for one of two ranges: 90 to 127 VAC or 180 to 250 VAC, at 48 to 63 Hz Power Consumption 60 VA, maximum 1Measured using the true rms feature of the Hewlett Packard Model 34401A digital multimeter
advancedenergy.com 3 TREK ELECTROSTATIC VOLTMETER 370 Trek 370 Reference Number Description Line Voltage 90 to 127 VAC 180 to 250 VAC 370-1 Electrostatic Voltmeter with 1/100 Monitor Output Ratio 370-1-L Contact Factory 370-2 Electrostatic Voltmeter with 1/200 Monitor Output Ratio 370-2-L Contact Factory 370-3 Electrostatic Voltmeter with 1/300 Monitor Output Ratio 370-3-L Contact Factory 370-6 Electrostatic Voltmeter with 1/600 Monitor Output Ratio 370-6-L Contact Factory 370-10 Electrostatic Voltmeter with 1/1000 Monitor Output Ratio 370-10-L Contact Factory Optional Accessories 603RA Full Rack Mount Kit 604RA Half Rack Mount Kit Probes Standard Resolution 7000ER Trek 7000ER (end-viewing) Minature 3800E-2 Trek 3800E-2 (end-viewing) 3800S-2 Trek 3800S-2 (side-viewing). REFERENCE NUMBERS TECHNICAL DATA
Features
Zero Control A momentary push-button switch to produce zero volts output when the probe is coupled to a known zero volt surface. Automatic Gain Control The Trek 370 automatically optimizes the gain of the AC response when changing the type of probe being used or when changing the probe-to-surface separation. Digital Enable An open collector, TTL compatible input to enable or disable the measurement. A TTL high will disable the measurement, while a TTL low will enable the measurement. Voltage Display Four-character, Seven-segment LED display. Range 0 to ±3000 V Resolution 1 V Zero Offset ±1 count, referred to the voltage monitor Sampling Rate 2.5 readings per second
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-370-235-02 4.21