TREK Product - High Voltage Function Generators

Products: High Voltage Function Generators

TREK Model 615-10
[formerly Model PM04015A]

Trek Model 615-10 Info
Output
Performance
Voltage, Current Displays & Monitors
Amplifier Mode Specs
Product Features
General
Accessories
Certification

Model 615-10 AC/DC High Voltage FUNCTION Generator

The Trek Model 615-10 [formerly Model PM04015A] is a high voltage function generator consisting of a precision high voltage AC/DC generator and amplifier system with a 20 kV peak-to-peak capability. This high voltage function generator is used in a broad range of R&D and production applications which include providing operating potentials required for electrostatic charger roller devices as used in electrophotographic processes. This model can also be used in other applications that require a high voltage function generator with the capabilities provided by this unit.

Model 615A-1 and Model 615-3 have a 10 kV peak-to-peak capability.

Constant Voltage Mode
In the constant voltage mode, the 615-10 generates constant amplitude waveforms with or without DC bias over a range of ±10 kV (20 kV p-p) with a constant current output of ±35 mA peak, ±10 mA DC. A high slew rate capability of 500 V/ms provides low distortion of full output AC waveform of greater than 7.5 kHz (sine).

Constant Current Mode
In the constant current mode, the 615-10 generates constant amplitude AC current waveforms, with or without an added DC bias, over a range of 0 to ±10 mA with an output voltage compliance range of ±10 kV (20 kV p-p).

Amplifier Mode
In the AMPLIFIER mode, an analog voltage input connector is provided to apply external AC or DC signals to be amplified by the 615-10. Amplifier gain is fixed at 1000 V/V to provide up to 20 kV p-p voltages to the output terminal at ±35 mA peak, ±10 mA DC. The DC BIAS control circuitry is active while in the amplifier mode.

The Model 615-10 provides many extra features to provide versatility in operation such as voltage limiting control and current limiting control. The Trek exclusive I(s) control provides for termination of a load current path which is not to be monitored/controlled, such as electrophotographic corotron/scoratron device shield current. This feature allows tightly regulated ion charging current flow to the photoconductor surface without the need to monitor drum return current.

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. A 25-pin “D” connector permits connection of TTL signals and 0 to +10 V DC analog signals to remotely control the operation of the Model 615-10.

OUTPUT (any mode)

AC Voltage (DC Bias is zero)
0 to 20 kV peak-to-peak.
DC Bias (AC voltage is zero)
0 to ±10 kV DC.
AC Voltage + DC Bias
0 to ±10 kV (combined AC and DC instantaneous voltage value).
AC Current (DC Current is zero)
0 to ±10 mA average where: AC current average = (2) I peak / 3.14
DC Current (AC current is zero)
0 to ±10 mA DC.
AC Current + DC Current
0 to ±35 mA peak.
Frequency (Internal Generator)
100 Hz to 10 kHz.

PERFORMANCE

Stability
- Drift with Temperature
  Less than 200 ppm/°C.
- Line Regulation Effects
  Less than 0.1% of full scale, nominal line ±10%.
- Load Regulation Effects
  Less than 0.1% of full scale.
DC Bias Offset (Master DC switch off)
Less than 1 V DC.
Output Noise (Constant Voltage Mode)
Less than 2 V rms (measured using the true rms feature of the Hewlett Packard Model 34401A digital multimeter).

VOLTAGE AND CURRENT DISPLAYS AND MONITORS

AC Display
A 3½ digit LED display indicates the peak-to-peak value of the AC voltage output or the average AC current waveform (switch selectable).
- AC Voltage Range
  0 to 19.99 kV peak-to-peak.
- AC Current Range
  0 to 10 mA average AC current.*
- AC Voltage Resolution
  20 V peak-to-peak.
- AC Current Resolution
  10 uA, average.
- Accuracy
  Better than 0.5% of full scale ±1 digit.
* AC current average = (2) I peak / 3.14
DC Display
A 3½ digit LED display indicates either the level of the DC bias or the level of the DC load current (switch selectable).
- DC Voltage Range
  0 to ±10.00 kV DC.
- DC Current Range
  0 to ±10.00 mA DC.
- Resolution
  - DC Voltage
    10 V DC.
  - DC Current
    10 uA DC.
  - 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
  1/1000th of the high-voltage output.
- DC Accuracy
  Better than ±0.1% of full scale.
- Offset Voltage
  Less than 2 mV.
- Output Noise
  Less than 10 mV rms (measured using the true rms feature of the Hewlett Packard Model 34401A digital multimeter).
- Output Impedance
  50 ohms.
Current Monitor
A buffered output provides a low-voltage representation of the load current.
- Scale
  0.25 V/mA.
- DC Accuracy
  Better than ±0.2% of full scale.
- Offset Voltage
  Less than 2 mV.
- Output Noise
  Less than 40 mV rms (measured using the true rms feature of the Hewlett Packard Model 34401A digital multimeter).
- Output Impedance
  50 ohms.

AMPLIFIER MODE SPECIFICATIONS

Input
0 to ±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. Please contact TREK, INC. or an authorized service representative for details.
DC Voltage Gain Accuracy
0.5% of full scale.
Offset Voltage
Less than 1 V DC.
Output Noise
Less than 2 V rms (measured using the true rms feature of the Hewlett Packard Model 34401A digital multimeter).
Slew Rate (10 to 90 %, typical)
Greater than 80 V/µs.
Large Signal Bandwidth (1% distortion)
DC to greater than 3 kHz.
Small Signal Bandwidth(-3 db)
DC to greater than 10 kHz.

PRODUCT FEATURES

Amplifier Input Mode
A front panel BNC connector to input an external signal.
Current Range Switch
Selects current mode for 0 to 1 mA or 0 to 10 mA.
High-Voltage AC Output Limit
Adjustable from 0 to 20 kV peak-to-peak for both Constant Current mode and Constant Voltage mode.
Internal AC Generator
An internal AC function generator is used to produce the AC output voltage (Constant AC Voltage mode) or the AC output current (Constant AC Current mode).
- Waveform Options
  Square, sine, or triangle.
- Frequency Range
  100 Hz to10 kHz.
- Local Operation Waveform Select
  Front panel switch.
- Local Operation Frequency Adjustment
  10-turn dial potentiometer.
- Remote Operation (20 Hz Resolution)
  - Remote Operation Waveform Select
    2-bit TTL compatible input.
  - Remote Operation Frequency Adjustment
    A +0.1 to +10 V DC signal to produce 100 Hz to 10 kHz operation.
DC Current Output Limit
Adjustable from 0 to ±10 mA DC
- Accuracy
  ±5% of full scale.
- Response Time
  50 ms typical.
- Dial Resolution
  20 uA.
Amplitude Ranges
- Constant AC Voltage Mode
  0 to 20 kV peak-to-peak.
- Local Operation
  10-turn dial potentiometer for the Constant AC Voltage mode.
- Local Operation Dial Resolution
  20 V peak-to-peak.
- Remote Operation
  2 kV peak-to-peak per each applied DC volt ± 0.5% of full scale.
Constant AC Current Mode
- Local Operation
  0 to 1 mA average range, 20 uA dial resolution,
  or
  0 to 10 mA average range, 200 uA dial resolution.
- Remote Operation
  0 to 1 mA average range, 0.1 mA average per each applied DC volt ±5% of full scale,
  or
  0 to 10 mA average range, 500 µA, average, per each applied DC volt ±2 % of full scale.
Compliance Indicator
A LED will illuminate during an overvoltage condition when operating in the Constant AC Current mode or during an overcurrent condition when operating in the Constant AC Voltage mode.
High-Voltage On/Off
- Local
  A 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.
Constant AC Voltage or Constant AC 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.
DC Bias
Adjustable from 0 to ±10 kV DC.
- DC Bias Local Level Adjustment
  Two 0 to 10 kV range 10-turn dial potentiometers, one for the Constant Voltage mode and one for the Constant Current mode.
- DC Bias Local Polarity Selection
  Two front panel switches, one for the Constant AC Voltage mode and one for the Constant AC Current mode DC Bias.
- DC Bias Remote Level Adjustment
  A 0 to +10 V DC signal to produce 0 to 10 kV DC Bias
- DC Bias Remote Polarity Selection
  A TTL compatible input.
Overload Indicator
A LED will illuminate when the output current limit is exceeded.
Load Compensation Adjustments
Two potentiometers are used to adjust the AC response for various load parameters.

GENERAL

Dimensions
237 mm H x 432 mm W x 432 mm D (9.3" H x 17" W x 17" D)
(rack mountable using optional hardware).
Weight
19.3 kg (42.5 lb).
High-Voltage Output Connector
Alden high-voltage connector.
Voltage Monitor Connector
BNC connector.
Current Monitor Connector
BNC connector.
Front Panel Remote High Voltage On/Off Connector
BNC connector.
Amplifier Input
BNC connector.
Remote Interface Connector
25-pin “D” socket connector.
AC Line Receptacle
Standard three-prong AC line connector with an integral fuse holder.
Power Requirements
- Line Supply
  90 to 127 V AC at 48 to 63 Hz (180 to 250 V AC, at 48 to 63 Hz optionally available).
- Power Consumption
  600 VA.
Operating Conditions
- Temperature
  15 °C to 35 °C.
- Relative Humidity
  To 85%, noncondensing.
- Altitude
  To 10,000 meters.

ACCESSORIES

Operator’s Manual, high-voltage output assembly, and line cord

CERTIFICATION

TREK, INC. certifies that each Model 615-10 is tested and calibrated to specifications using measurement equipment traceable to the National Institute of Standards and Technology or traceable to consensus standards. CE Compliant.

All specifications are with no load unless otherwise noted and are subject to change.