Trek 668B High-Voltage Reference Supply - Manual (Page 2)

Output General Features (cont.)
Mechanical
Performance Features
Certification
Output Voltage Range Line Supply Memory
Adjustable from 0 to +3 kV DC or 90 to 126 V AC or 180 to 250 V AC ±10%, Nine (9) programmable memory locations
0 to -3 kV DC. at 50-60 Hz (specify when ordering). for frequently used output voltage and
current settings. A voltage setting
Output Voltage Resolution Operating Conditions (including polarity) and a current value
Temperature 100 mV. can be stored in each memory location.
5 °C to 35 °C.
Relative Humidity Output Current Range
To 75%, noncondensing. 0 to ±5 mA DC.
Dimensions
104 mm H x 438 mm W x 394 mm D,
(5.09" H x 17.25" W x 15.51" D).
Output Voltage Accuracy Front Panel Display
Better than 0.015% of full scale. A sixteen (16) character LED display that Weight
indicates the output voltage, the current 6.9 kg (15.2 lb).
Zero Offset Voltage limit/trip setting, and the memory
Less than 50 mV. location. High-Voltage Output Connector
MHV connector.
Output Noise Front Panel Voltage Control
Less than 15 mV rms (measured using High Voltage On/Off Digital Enable Connector
the true rms feature of the Hewlett Individual push buttons. BNC connector.
Packard Model 34401A digital Voltage Selection
multimeter). Up and down push buttons that AC Line Receptacle
independently control each of the Standard three-prong AC line connector
Regulation 5 digits of the displayed voltage. with integral fuse holder.
Line Polarity
Better than 0.0025% for a line change Push-button selectable.
from 90 V to 126 V AC or 180 V to Zero
250 V AC. Push button that commands the output
Load to zero volts.
TREK, INC. certifies that each Model 668B is
Better than 0.0025% for a load change
tested and calibrated to specifications using
from 0 to 5 mA. Current Limit/Trip
measurement equipment traceable to the
Current LIMIT or current TRIP is selected
National Institute of Standards and Stability using a single push-button switch. The
Technology or traceable to consensus Drift with Time value is adjustable from 1 mA to 5 mA
standards. A Certificate of Calibration
Less than 2 ppm/month, with push buttons. A LIMIT or TRIP
accompanies each instrument when it is
noncumulative. indicator will flash when the instrument is
shipped from the factory.
Drift with Temperature in a current limit or trip condition.
Less than 25 ppm/°C. Current Limit/Trip Resolution
1 mA.
Current Limit/Trip Accuracy
Better than 10% of setting.
Digital Enable Feature
An open collector, TTL compatible input
to turn on and off the high-voltage output.
A TTL high will turn off the high voltage.
A TTL low will turn on the high voltage.
Model 10/40A Specifications
All specifications are with no load unless otherwise noted.
Model 668B Specifications
Copyright ã 2011 TREK, INC.
All specifications are subject to change.
1152/DEC
Model 668B Accessories
Item Part No. Item Part No.
HV Reference Supply (90 to 126 V AC) . . . . . . . . . . . . 668B-L Operator's Manual . . . . . . . . . . . . . . . . . . . . . . . 23070
HV Reference Supply (180 to 250 V AC) . . . . . . . . . . . . 668B-H MHV Mating Plug . . . . . . . . . . . . . . . . . . . . . . . . B3005
Line Cord (90 to 126 V AC) . . . . . . . . . . . . . . . . . . N5002
Line Cord (180 to 250 V AC). . . . . . . . . . . . . Contact factory
Model 604RA Rack Adapter (optional) . . . . . . . . . . . . C4102
Model 668B Ordering Information
TREK, INC. 190 Walnut Street • Lockport, NY 14094 • USA • 800-FOR TREK
585-798-3140 • 585-798-3106 (fax) • www.trekinc.com • [email protected]