TREK Product - Model 615 SERIES AC/DC High Voltage Generators

TREK Model 615 SERIES of AC/DC High Voltage function Generator

Trek Models 615A-1, Model 615-3, and Model 615-10 are highly precise AC/DC high voltage function generators that can be used in research and development and production facilities. These high-voltage function generator models are designed to simultaneously provide the AC and DC operating potentials required to operate/control an "Electrostatic Charger Roller". "Electrostatic Charger Rollers" are used in the electrostatic photocopier and digital printing systems. These two models can also be considered for use in other applications which require a high voltage function generator.

The new Model 615-10 has a 0 to 20 kV peak-to-peak voltage capability.

Constant Voltage Mode
The Trek Model 615A-1 and the Model 615-3 high voltage generators can be used as general purpose, precision, high voltage AC/DC generators that produce output voltages in the range of 0 to 10 kV peak-to-peak. Front panel controls set the voltage levels and provide adjustments for output waveforms and frequencies. A DC bias voltage can be added to the output signal in either polarity up to a maximum peak value of 5 kV.

Constant Current Mode
The Trek Model 615A-1 and the Model 615-3 differ in the type of current which is controlled. The Model 615A-1 maintains the resistive AC current (peak-to-peak) of the load according to front panel set values while supplying additional current to the reactive portion of the load. The Model 615-3 maintains the voltage waveform and controls the total AC current (rectified average) to the load according to front panel settings. Controlled AC current is not effected by DC current. This feature allows for the addition of a DC bias voltage to the output signal. In addition, the Model 615-3 has an adjustable DC limit potentiometer to limit the DC current output.

Amplifier Mode
As high voltage amplifiers, any applied input signal is amplified by a fixed gain of 1000 V/V. DC bias voltage settings can be added to the output signal.

In addition, Model 615 series have many extra features to adjust and control output voltages and output current ranges. These features include: an upper voltage limit setting, a constant current mode range selection switch, an I(s) terminal common post for shield connection of high voltage wiring and overload and compliance indicators.

Voltage and current values are read by front panel displays or through rear panel buffered outputs providing low-voltage representations of the load current and the high-voltage output.

Show/Hide Product Technical Information

Output Limits (any mode)

AC Voltage (DC Bias is zero)
  0 to 10 kV peak-to-peak.
AC Voltage + DC Bias
  0 to ±5 kV peak.
DC Bias (AC voltage is zero)
  0 to ±5 kV DC.
AC Current (DC Current is zero)
  0 to 10 mA, p-p (615A-1).
  0 to 5 mA, average (615-3)*.
AC current average = (2) I peak / 3.14

AC Current + DC Current
  0 to ±8 mA peak.
DC Current (AC current is zero)
  0 to 8 mA DC.
Frequency (Internal Generator)
  100 Hz to 10 kHz.

Features

Internal AC Generator
An internal AC function generator is used to produce the AC output voltage (Constant AC Voltage mode) or the AC load current (Constant AC Current mode).
Note: Not used in AMPLIFIER mode.
Waveform Options
  Square, sine, or triangle.
Waveform Distortion
  Less than 1.5%.
Frequency Range
  100 Hz to 10 kHz.

Amplifier Input Mode
A front panel BNC connector which will process an external signal.

Constant Voltage/Constant Current
Two 10-turn dials for precise settings.

Constant Current Range Select
Selects current mode for 0 to 1 mA or 0 to 10 mA p-p (615A-1).
Selects current mode for 0 to 500 mA or 0 to 5 mA average (615-3)*.

DC Bias
Adjustable from 0 to ±5 kV DC.

High-Voltage AC Output Limit
Adjustable from 0 to 10 kV p-p for both Constant Current mode and Constant Voltage mode.
Note: Not used in AMPLIFIER mode.
  Accuracy
    5% of full scale.
High-Voltage On/Off
  Local
    Front panel switch.
  Remote
    A TTL compatible input.
  Master DC Switch
  Turns ON and OFF the DC generator.

Master AC Switch
Turns ON and OFF the AC generator.
Note: Not used in AMPLIFIER mode.

AC Voltage or Current Mode Selection
  Local Operation
    A front panel switch.
  Remote Operation
    A TTL compatible signal applied to the Mode Select input of the Remote Interface connector.

Compliance Indicator
A LED will illuminate during an overvoltage condition when operating in the Constant Current mode or during an overcurrent condition when operating in the Constant Voltage mode.
Note: Not used in AMPLIFIER mode.

Overload Indicator
A red LED will illuminate when the output current limit is exceeded.

Voltage/Current Displays and Monitors

AC Display
A 3½ digit LED display indicates the peak-to-peak value of the AC voltage output or the resistive peak-to-peak AC load current, switch selectable on the 615A-1. The 615-3 displays the average current*.
Note: Not used in AMPLIFIER mode.
Accuracy
Better than 0.5% of full scale ± 1 digit.

DC Display
A 3 ½ digit LED display indicates either the level of the DC bias or the level of the DC load current (switch selectable).
Accuracy
Better than 0.2% of full scale ± 1 digit.

Voltage Monitor
A buffered output provides a low-voltage replica of the high-voltage output.
  Scale Factor
    1/1000th of the high-voltage output.
Current Monitor
A buffered output provides a low-voltage representation of the load current.
  Scale Factor
    1 V/mA.

Additional Specifications for the Amplifier Mode

Input Voltage Range
±5 V DC or peak AC.

Gain for Noninverting Voltage
The gain of the noninverting amplifier is factory set for 1000 V/V. A voltage gain of 500 V/V is available.

DC Voltage Gain Accuracy
0.5% of full scale

Slew Rate (10 to 90 %, typical)
Greater than 80 V/µs.

Large Signal Bandwidth (1% distortion)
DC to greater than 3 kHz.

Large Signal Bandwidth (-3dB)
DC to greater than 3 kHz.

Small Signal Bandwidth(-3 db)
DC to greater than 10 kHz.

General

Dimensions
*-*-134 mm H x 432 mm W x 432 mm D
*-*-(5.25" H x 17" W x 17" D).

Weight
*-*-15 kg (33 lb).

Power Requirements
Line Supply
*-*-Factory set for one of two ranges, 90 to 127 V AC or 180 to 250 V AC, at 48 to 63 Hz.
Power Consumption
*-*-100 VA.

The 615 series can be operated on a bench top or, with optional hardware, in a standard 19-inch rack.

Accessories

Accessories Supplied
Operator’s Manual
High-Voltage Output Cable Assembly
Line Cord (90 to 127 V AC operation)
Unterminated Line Cord (180 to 250 V AC operation).

Accessories Optionally Available
High-Voltage Output Cable Assembly (5 meter)
High-Voltage Output Cable Assembly (10 meter)
High-Voltage Output Cable Assembly (20 meter)

CERTIFICATION

TREK, INC. certifies that each Model 615A-1 is tested and calibrated to specifications using measurement equipment traceable to the National Institute of Standards and Technology or traceable to consensus standards.

All Specifications are with no load unless otherwise noted.

All specifications are subject to change.

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