Trek 370 DC Stable Electrostatic Voltmeter - Manual (Page 2)

Model 370 Optional Accessories
Probes
Item Part No. Item Part No.
Electrostatic Voltmeter with 1/100 Monitor Output Ratio . . . . . . . . . . . . . . . 370-1 Data Acquisition Module with IEEE-488 Compatible Interface . . . . . . . . . 16073
Electrostatic Voltmeter with 1/200 Monitor Output Ratio . . . . . . . . . . . . . . . 370-2 603RA Full-Rack Mounting Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 603RA
Electrostatic Voltmeter with 1/300 Monitor Output Ratio . . . . . . . . . . . . . . . 370-3 604RA 1/2 Rack Mounting Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 604RA
Electrostatic Voltmeter with 1/600 Monitor Output Ratio . . . . . . . . . . . . . . . 370-6
Electrostatic Voltmeter with 1/1000 Monitor Output Ratio . . . . . . . . . . . . . 370-10
Standard Probe
Model 7000ER (end-viewing). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7000ER
Line Voltage
Miniature Probes 90 to 127 V AC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . (Part Number)-L
Model 3800E-2 (end-viewing) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3800E-2 180 to 250 V AC . . . . . . . . . . . . . . . . . . . . . . . (Part Number - Contact Factory)
Model 3800S-2 (side-viewing) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3800S-2
Performance Features (cont.) General
Features
Voltage Monitor Output Dimensions Measurement Range
A buffered output providing a low- 108 mm H x 223 mm W x 430 mm D 0 to ±3 kV DC or peak AC.
voltage replica of the measured (4.25" H x 8.75" W x 17" D).
Measurement Accuracy
voltage. 1/200, 1/300, 1/600, 1/1000 Weight
At the Voltage Monitor
5 kg (11 lb). options available. (Offset Voltage and
Better than ±0.05% of full scale.
Output Noise specifications vary Digital Enable
At the Voltage Display
based on output scale factor.) BNC connector. Better than ±0.1% of full scale
Scale Factor Voltage Monitor Output Connector
±1 count, referred to the voltage
1/100th of the measured voltage. BNC connector.
monitor.
Offset Voltage (at 1/100th scale) Ground Receptacle
Speed of Response (10% to 90%)
Less than 10 mV. Binding post.
Less than 50 ms for a 1 kV step. Output Noise (at 1/100th scale)
Power Requirements
Less than 20 mV rms (measured Stability
Line Voltage
with the true rms feature of the Drift with Time
Factory set for one of two ranges:
Hewlett Packard Model 34401A Less than 150 ppm/hour,
90 to 127 V AC or 180 to 250 V AC,
digital multimeter). noncumulative.
at 48-63 Hz (specify when ordering).
Output Impedance Drift with Temperature
Power Consumption
Less than 0.1 W. Less than 100 ppm/°C.
60 VA, maximum.
Output Current Limit
Probe-to-Surface Separation
Operating Conditions
±10 mA
2 mm ± 1 mm (recommended).
Temperature
Digital Enable
0 °C to 40 °C.
An open collector, TTL compatible
Relative Humidity
input to enable or disable the
To 85%, noncondensing.
Zero Control measurement. A TTL high
Altitude
A momentary push-button switch to will disable the measurement, while a
To 2000 meters
produce zero volts output when the
TTL low will enable the measurement.
Certification and Compliance probe is coupled to a known zero volt
Data Acquisition Module (optional)
TREK, INC. certifies that each Model surface.
Provides data output using an IEEE-
370 is tested and calibrated to
Automatic Gain Control 488 compatible interface.
specifications using measurement
The 370 automatically optimizes the Resolution
equipment traceable to the National
gain of the AC response when 14 bit.
Institute of Standards and Technology.
changing the type of probe Accuracy
A Certificate of Calibration
being used or when changing the 12 bit.
accompanies each instrument when it
probe-to-surface separation. Sampling Period
is shipped from the factory.
Programmable from 10 µs to Voltage Display
Low-Voltage Safety Compliance
30 minutes. 4-character, 7-segment LED display.
(EN 61010-1)
Storage Range 0 to ±3000 V.
Overvoltage Category
32 Kbytes (16 Kbytes of data words). Resolution 1 V.
CAT II: Local-level mains,
Acquisition Start Signal Zero Offset ±1 count, referred to
appliances, portable equipment.
External trigger or IEEE-488 Talk
the voltage monitor.
Pollution Category
Enable or Group Trigger command. Sampling
Degree 1: Operate in environments
Successive Data Acquisition
Rate 2.5 readings per
where no pollution or only dry,
Internal timer or external trigger. second.
nonconductive pollution occurs.
Interface Functions
SH1, AH1, T6, L4, SR1, RL1, PP0,
DC1, DT0, C0, E2.
Address
Switch selectable between 0 and 30.
Model 10/40A Specifications
Model 370 Specifications
Copyright Ó 2011 TREK, INC.
All specifications are subject to change.
1122/DEC
All specifications are with a 3800E-2 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