Trek 370TR DC Stable Electrostatic Voltmeter User Manual
Page 2
Model 370TR
Optional Accessories
Probes
Item
Part No.
Item
Part No.
Electrostatic Voltmeter with 1/100 Monitor Output Ratio . . . . . . . . . . . . 370TR-1
Data Acquisition Module with IEEE-488 Compatible Interface . . . . . . . . . 16073
Electrostatic Voltmeter with 1/200 Monitor Output Ratio . . . . . . . . . . . . 370TR-2
603RA Full-Rack Mounting Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 603RA
Electrostatic Voltmeter with 1/300 Monitor Output Ratio . . . . . . . . . . . . 370TR-3
604RA 1/2 Rack Mounting Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 604RA
Electrostatic Voltmeter with 1/600 Monitor Output Ratio . . . . . . . . . . . . 370TR-6
Electrostatic Voltmeter with 1/1000 Monitor Output Ratio . . . . . . . . . . 370TR-10
Transparent Probe
Model 3629A (side-viewing). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3629A
Line Voltage
90 to 127 V AC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . (Part Number)-L
Standard Probe
180 to 250 V AC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . (Part Number)-H
Model 3627 (side-viewing) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3627
Performance
Features (cont.)
General (cont.)
Features
Probes
General
Measurement Range
Voltage Monitor Output
Digital Enable
0 to ±3 kV DC or peak AC.
A buffered output providing a low-
BNC connector.
voltage replica of the measured
Voltage Monitor Output Connector
Measurement Accuracy
voltage.
BNC connector.
At the Voltage Monitor
Scale Factors
Ground Receptacle
Better than ±0.05% of full scale.
1/100th of the measured voltage.
Binding post.
At the Voltage Display
(1/200, 1/300, 1/600, 1/1000
Better than ±0.1% of full scale
Power Requirements
options available.)
Line Voltage
±1 count, referred to the voltage
Offset Voltage
90 to 127 V AC at 48-63 Hz
monitor.
Less than 10 mV.
(180 to 250 V AC at 48-63 Hz
Speed of Response (10% to 90%)
Output Noise
option available).
Less than 200 ms for a 1 kV step.
Less than 20 mV rms (measured
Power Consumption
with the true rms feature of the
Stability
60 VA, maximum.
Hewlett Packard Model 34401A
Drift with Time
Operating Conditions
digital multimeter).
Less than 150 ppm/hour,
Temperature
Output Impedance
noncumulative.
0 °C to 40 °C.
Drift with Temperature
Less than 0.1 W.
Relative Humidity
Less than 100 ppm/°C.
Output Current Limit
To 85%, noncondensing.
±10 mA
Digital Enable
An open collector, TTL compatible
Zero Control
input to enable or disable the
Probe-to-Surface Separation
A momentary push-button switch to
measurement. A TTL high
2 mm ± 1 mm
(recommended).
produce zero volts output when the
will disable the measurement, while a
probe is coupled to a known zero volt
TTL low will enable the measurement.
Model 3629A (Transparent)
surface.
Body Shape
Square.
Data Acquisition Module (optional)
Aperture Size
5.3 mm diameter.
Automatic Gain Control
Provides data output using an IEEE-
Aperture Location Side.
The 370TR automatically optimizes the
488 compatible interface.
Dimensions
gain of the AC response when
Resolution
14 bit.
11.8 mm sq. x 65.6 mm L.
changing the type of probe
Accuracy
12 bit.
being used or when changing the
Sampling Period
Model 3627
probe-to-surface separation.
Programmable from 10 µs to 30 min.
Body Shape
Square.
Storage 32 Kbytes
Voltage Display
Aperture Size
1.5 mm x 3.0 mm.
(16 Kbytes of data words).
4-character, 7-segment LED display.
Aperture Location Side.
Interface Functions
Range
0 to ±3000 V.
Dimensions
SH1, AH1, T6, L4, SR1, RL1, PP0,
Resolution
1 V.
11.8 mm sq. x 76.2 mm L.
DC1, DT0, C0, E2.
Zero Offset
±1 count, referred to
Address
the voltage monitor.
Certification and Compliance
Switch selectable between 0 and 30.
Sampling
TREK, INC. certifies that each Model
Rate
2.5 readings per
370TR is tested and calibrated to
second.
specifications using measurement
equipment traceable to the National
Dimensions
Institute of Standards and Technology.
108 mm H x 223 mm W x 430 mm D
(4.25" H x 8.75" W x 17" D).
Weight
5 kg (11 lb).
Model 10/40A Specifications
Model 370TR Specifications
Copyright Ó 2011 TREK, INC.
All specifications are subject to change.
1122/DEC
All specifications are with a 3627 or 3629A probe at a probe-to-surface separation of 2 mm unless otherwise noted.
TREK, INC. • 190 Walnut Street • Lockport, NY 14094 • USA • 800-FOR TREK
(fax) • www.trekinc.com • [email protected]
716-438-7555 • 716-201-1804