Trek Product - Model 400 ELECTROSTATIC VOLTMETER

Products: Electrostatic Voltmeter Instruments

TREK Model 400

Trek Model 400
Performance
Product Features
Inovations From Trek
Accessories
General
Certification

Model 400 ELECTROSTATIC VOLTMETER

New! The Trek Model 400 Electrostatic Voltmeter (shown above with optional bail feature) represents the next generation of DC-stable noncontacting, precision surface voltage measuring instruments which incorporates the exclusive Trek vibrating reed probe sensor and provides new features not previously available with any other electrostatic voltmeter instrument. These features include:

An automatically flat (no over/under shoot) response characteristic which is both fast and independent of the probe to measured surface spacing over a distance range of 1 mm to 3 mm, thus eliminating the need for a user operated response/gain control.

A front panel pushbutton or rear panel external TTL input signal initiates a zero capability which provides up to ±10 volts zero level correction, thus eliminating the use of a manual zero control.

Model 400 product options include operation with standard probes only, operation with high speed probes only, and operation with both standard and high speed probes, with or without a bail.

For models that operate with high speed probes, a Noise Null potentiometer is available to null the output noise to the lowest value.

Probe-to-Surface Separation
1 mm to 3 mm (recommended).

STANDARD and HIGH-SPEED PROBES

Model 400P-S (side view),
Model 400P-E (end view)
3 ms at a 1 kV step speed response with 1.5 ms max. initial jitter.*
3 mV rms noise (referenced to voltage monitor)**

Model 401P-S (side view),
Model 401P-E (end view)
200 us at a 1 kV step speed response with no jitter.† 10 mV rms noise (referenced to voltage monitor) **

* Measured from 10% to 90% of the response curve.
† Measured from 5% to 90% of the response curve.
** Measured using a Agilent Model 34401A DMM.

RODUCT OPTIONS:
Model 400-CE
Standard and high speed probe operation, no bail.(C/N 13439).
Model 400-1-CE
Standard and high speed probe operation, with bail. (C/N 13442).

Model 400-S
Standard speed probe operation only, no bail.(C/N 13449).
Model 400-1S
Standard speed probe operation only, with bail. (C/N 13450).

Model 400-D
High-speed probe operation only, no bail. (C/N 13451).
Model 400-1D
High-speed probe operation only, with bail. (C/N 13452).

Download the Model 400 PDF file for additional probe response information

PERFORMANCE

Measurement Range
0 to ±2 kV DC or peak AC.
Measurement Accuracy
At the Voltage Monitor Output
Better than ±0.05% of full scale.
At the Voltage Display
Better than ±0.1% of reading ±1digit
(referred to measured input).

Stability
Drift with Time
Less than 100 ppm/hour, noncumulative.
Drift with Temperature
Less than 100 ppm/°C.

PRODUCT FEATURES

Zero Control
A momentary push-button switch or external TTL low signal initiates an auto zero function. The auto zero range can null up to ±10 V (referenced to input).
Digital Enable
An open collector, TTL compatible input to enable or disable the unit’s high-voltage measurement. A TTL high will disable while a TTL low will enable the measurement.

Voltage Display
3½ digit LED display.
Range
0 to ±1999 V.
Resolution
1 V.
Zero Offset
Less than or equal to ±1 count.

Voltage Monitor Output
A BNC provides a buffered low-voltage replica of the measured voltage.
Scale
1/100th of the measured voltage (standard).
1/200 and 1/1000 scale factors are also available.
Output Current
±5 mA (minimum).
Zero Offset
Less than or equal to ±0.003 V.
Output Impedance
Less than 0.1 ohm.

INNOVATIONS FROM TREK

Measurement Range:
0 to ±2 kV DC or peak AC

Available with
Standard and High-Speed Probes

Excellent Speed of Response and
Spot Resolution Characteristics

Measurement Accuracy:
at Voltage Display
Better than ±0.1% of
reading ±1 digit

Measurement Accuracy:
at the Voltage Monitor
Better than ±0.05% of full scale.

High DC Stability of 100 ppm/°C

Digital Enable:
Remote measurement ON/OFF control

Push-button Auto ZERO

Optional Bail Feature Available

CE Compliant

ACCESSORIES

Accessories Supplied
- Operator’s Manual, Universal Power Cube (90 V to 264 V AC), Ground Cord.
Optional
- Standard Speed Probes
  Model400P-E (end-viewing, square body).
  Model 400P-S (side-viewing, square body).
  High Speed Probes
  Model 401P-E (end-viewing, square body).
  Model 401P-S (side-viewing, square body).

GENERAL

Power Requirements
Available for all nominal line voltages. The wall cube provides the following input power to the ESVM:
Voltage
15 V DC, ±5% @ 1 Amp.
Input Connector
2.1 mm DC power plug.
Dimensions (Model 400-CE)
63 mm H x 175 mm W x 234 mm D
(2.5" H x 6.9" W x 9.2" D).

Dimensions
(Model 400-1-CE with optional bail)
63 mm H x 209 mm W x 257 mm D
(2.5" H x 8.2" W x 10.1" D).

Weight (with bail)
1 kg (2.2 lb).

Voltage Monitor Connector
BNC coaxial connector.

Digital Enable Connector
BNC coaxial connector.

Zero Connector
BNC coaxial connector.

Noise Null Potentiometer
Provided on models that operate with high speed probes, this rear panel potentiometer allows the operator to null the output noise to the lowest value

Ground Receptacle
Threaded ground stud.

Operating Conditions
Temperature
0°C to 40°C.
Relative Humidity
To 90%, noncondensing.

Power ON/OFF
A push-button membrane switch.

Probe Connector Location
Front panel

All specifications are subject to change.

CERTIFICATION

TREK, INC. certifies that each Model 400 is tested and calibrated to specifications using measurement equipment traceable to the National Institute of Standards and Technology or traceable to consensus standards. A Certificate of Calibration is available upon request.

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.