Trek 623B High-Voltage Power Amplifier - Manual (Page 2)

Features
High Voltage On/Off
Local Individual push-button switches
Remote TTL high turns OFF the high voltage; TTL low
turns on the high voltage
Dynamics
Adjustments Graduated 1-turn potentiometer used to
optimize the AC response for various load
parameters
Current Limit/Trip Switch selectable for limit or trip. Graduated 1-
turn potentiometer adjusts from 0 to 40 mA
Out of Regulation LED illuminates and BNC provides a TTL low
when Model 623B fails to produce HV output
such as during a current limit
Trip Status LED illuminates and BNC provides a TTL low
when HV is disabled due to the output current
exceeding the current trip level, a high voltage
fault is detected or the top cover is removed
Mechanical
Dimensions 134 mm H x 432 mm W x 439 mm D
(5.25” H x 17” W x 17.25” D)
Weight 13.2 kg (29 lb)
HV Connector Alden High Voltage Connector
BNC Connectors Voltage monitor, current monitor, remote HV
ON/OFF, out of regulation, fault/trip status
Amplifier Input 3-pin connector may be configured for invert-
ing, noninverting or differential amplification
Operating Conditions
Temperature 0°C to 40°C (32°F to 104°F)
Relative Humidity To 85%, noncondensing
Altitude To 2000 meters (6561.68 ft.)
Electrical
Line Voltage Factory Set for one of two ranges:
90 to 127 V AC or 180 to 250 V AC,
either at 48 to 63 Hz
Power Consumption 220 VA, maximum
Supplied Accessories
Operator’s Manual PN: 23185
HV Output Cable PN: 43406
Input Cable
Connector Assembly PN: 43418
Line Cord (90 V to
127 V operation) PN: N5011
Line Cord 230 V AC Contact factory
Optional Accessories
HV Output Cable PN: 43406
19” Rack Mount Kit Model 607RA (with EIA hole spacing)
Model 607RAJ (with JIS hole spacing)
Copyright ã 2012 TREK, INC. All specifications are subject to change. 1231/DEC
*Measured using the true rms feature of the HP Model 34401A digital multimeter
www.trekinc.com
Measurement and Power Solutions TM
Model 623B Specifications
Performance
Output Voltage 0 to ±2 kV DC or peak AC
Output Current 0 to ±40 mA DC or peak AC
Input Voltage Range 0 to ±2 V DC or peak AC
Input Impedance
Noninverting 25 kW, nominal
Inverting 50 kW, nominal
Differential 50 kW, nominal
DC Voltage Gain 1000 V/V
Noninverting (V )
A
Configuration
1000 V/V
Inverting (V )
B
Configuration
-1000 V/V
Differential
Configuration Function of the difference between two input
signals. Represented by the equation:
V
= 1000 (V - V )
OUT A B
DC Voltage Gain
Accuracy Better than 0.1% of full scale
DC Offset Voltage Less than ±1 V
Output Noise Less than 80 mV rms*
Slew Rate
(10% to 90%, typical) Greater than 300 V/µs
Settling Time (to 1%) Less than 150 µs for a 2 kV step
Large Signal
Bandwidth (1%
distortion) DC to greater 10 kHz
Small Signal
Bandwidth (-3dB) DC to greater than 40 kHz
Stability
Drift with Time Less than 100 ppm/hr, noncumulative
Drift with Temp Less than 200 ppm/°C
Voltage Monitor
Ratio 1/1000th of the high-voltage output signal
DC Accuracy Better than 0.1% of full scale
DC Offset Voltage Less than ±2.5 mV
Output Noise Less than 2 mV rms*
Output Impedance 0.1 W
Current Monitor
Ratio 0.25 V/mA
DC Accuracy Better than 5% of full scale
Offset Voltage Less than ±5 mV
Output Noise Less than 10 mV*
Small Signal
Bandwidth (-3 dB) DC to greater than 10 kHz
Output Impedance 47 W