Trek 605A User Manual
Model 605A
High-Voltage Reference Supply
! Output Voltage Range
Fixed Mode
+1 kV or -1 kV
Variable Mode
0 to +1 kV or
0 to -1 kV
!
! Output Current Range
0 to ±1 mA
!
The Trek Model 605A is a high-voltage reference supply
designed to provide precise control of output voltages in
the range of 0 to +1 kV DC or 0 to -1 kV DC with an output
current range of 0 to ±1 mA DC.
The Model 605A provides two modes of operation, a fixed
mode providing a constant +1 kV or -1 kV output, and a
variable mode providing variable control of the output
voltage with a one (1) volt resolution over a range of 0 to
±1 kV.
The Model 605A features an all-solid-state design for
accurate, low-noise operation and is protected against
over-current conditions that may be generated by output
short circuits to ground.
A Digital Enable feature provides a connection for a
remote device to turn on and off the high voltage of the
instrument. This makes the 605A suitable for automated
or computer-controlled systems.
The 605A is designed to be operated on a bench top.
! Output Accuracy
Better than 0.1% of
Full Scale
!
! Line and Load
Regulation Better than
0.002%
!
! Automatic current limit
feature to protect the
instrument from output
short circuits or
overloads
!
! Remote high voltage
on/off feature ideal for
Please contact TREK, INC. for further information about this
product and its various applications.
We would like to talk with you about your particular needs and
determine how this product or other Trek products can meet
your specific requirements.
Measurement and Power Solutions
www.trekinc.com
use with automated or
computer-controlled
systems
TM
Model 605A Specifications
All specifications are with no load unless otherwise noted.
Model 10/40A Specifications
Output Features General
Output Voltage Range
Fixed Mode
+1 kV or -1 kV.
Variable Mode
Adjustable from 0 to +1 kV DC or
0 to -1 kV DC.
Output Voltage Resolution
(Variable Mode)
1 V.
Output Current Range
0 to ±1 mA DC.
Performance
Output Voltage Accuracy
Fixed Mode
Better than 0.1% of full scale.
Variable Mode
Better than 0.1% of full scale.
Zero Offset Voltage
Less than 500 mV.
Regulation
Line
Better than 0.002% for a line
change from 90 to 110 V AC,
104 to 126 V AC, or 207 to
250 V AC.
Load
Better than 0.002% for a load
change from 0 to 1 mA.
Stability
Drift with Time
Less than 50 ppm/month,
noncumulative.
Drift with Temperature
Less than 100 ppm/°C.
Output Noise
Less than 10 mV rms (measured
using the true rms feature of the
Hewlett Packard Model 34401A
digital multimeter).
Front Panel Voltage Controls Line Supply
Mode Selection
Toggle switch to select either fixed
or variable output voltage.
Fixed Voltage Selection
Select either +1 kV or -1 kV using
the polarity switch when the mode
switch is in the fixed position.
Variable Voltage Selection
Calibrated 10-turn dial.
Polarity
Three-position toggle switch.
In the center position the output
terminals are disconnected from
the high-voltage supply and a
10 kW, 2 W resistor is placed
across the output terminals.
Digital Enable Feature
A rear panel BNC providing a
connection for remotely turning on
and off the high voltage output of
the 605A.
Recommended Connection
A switch, a relay, or the output of a
switching device, such as an open
collector transistor, connected
between the center conductor and
shield of the BNC. The high
voltage will be turned off when this
connection is open. The high
voltage will be turned on when this
connection is closed.
Current Limit
1.2 mA. An indicator will
illuminate when the instrument is
in a current limit condition.
Factory set for one of two ranges:
90 to 127 V AC or 180 to 250 V
AC, at 48 to 63 Hz (specify when
ordering).
Operating Conditions
Temperature
0 °C to 40 °C.
Relative Humidity
To 85%, noncondensing.
Dimensions
84 mm H x 254 mm W x 280 mm D,
(3.3² H x 10² W x 11² D).
Weight
2 kg (4.4 lb).
High-Voltage Output Connector
Two (2) binding posts.
Digital Enable Connector
BNC coaxial connector.
AC Line Connector
Standard three-prong AC line
connector.
Certification
TREK, INC. certifies that each
Model 605A is tested and calibrated
to specifications using
measurement equipment traceable
to the National Institute of
Standards and Technology. A
Certificate of Calibration
accompanies each instrument when
it is shipped from the factory.
Copyright ã 2011 TREK, INC.
All specifications are subject to change.
1152/DEC
Model 605A Ordering Information
Model 605A Accessories Supplied
Item Part No. Item Part No.
HV Reference Supply (90 to 127 V AC)......................... 605A-L Operator's Manual.............................................................23064
HV Reference Supply (180 to 250 V AC)........................ 605A-H
TREK, INC. 190 Walnut Street • Lockport, NY 14094 • USA • 800-FOR TREK
585-798-3140 • 585-798-3106 (fax) • www.trekinc.com • sales@trekinc.com
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