Trek 677B 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
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)
Mode Switch Selects either Amplifier or Supply operation
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: 23113
HV Output Cable PN: 43421 (5 M; other lengths available)
Input Cable PN: 43418 Connector Assembly
Fuses PN : H0050: 90 - 127 V AC ; H0049 : 180 - 250 V AC
Line Cord (90 V to
127 V operation) PN: N5002
Line Cord 230 V AC Contact factory
Optional Accessories
HV Output Cable PN: 43406
19” Rack Mount Kit Model 603RA Full Rack Mounting Kit
Model 603 RA-2 Dual Instrument Full Rack Kit
Model 604RA Metric Rack Mounting Kit
Copyright ã 2013 TREK, INC. All specifications are subject to change. 1330/JRB *Measured using the true rms feature of the HP Model 34401A digital multimeter
www.trekinc.com
Measurement and Power Solutions TM
Model 677B Specifications
Performance
Output Voltage 0 to ±2 kV DC or peak AC
Output Current 0 to ±5 mA DC or peak AC
Input Voltage Range 0 to ±10 V DC or peak AC
Input Impedance 10 kW, nominal
DC Voltage Gain 200 V/V
DC Voltage Gain
Accuracy Better than 0.1% of full scale
DC Offset Voltage Less than 5 mV
Output Noise Less than 100 mV rms*
Slew Rate
(10% to 90%, typical) Greater than 15 V/µs
Settling Time (to 1%) Less than 300 µs for a 2 kV step
Large Signal
Bandwidth (1%
distortion) DC to greater 1.2 kHz
Small Signal
Bandwidth (-3dB) DC to greater than 5 kHz
Stability
Drift with Time Less than 100 ppm/hr, noncumulative
Drift with Temp Less than 350 ppm/°C
Voltage Monitor
Ratio 1/200th of the high-voltage output signal
DC Accuracy Better than 0.1% of full scale
(May degrade to 0.6% in the presence of RF
fields up to 3 V/m)
DC Offset Voltage Less than 5 mV
Output Noise Less than 10 mV rms*
Output Impedance 0.1 W
Current Monitor
Ratio 1 V/mA
DC Accuracy Better than 1% of full scale
Offset Voltage Less than 5 mV
Output Noise Less than 10 mV*
Bandwidth (-3 dB) DC to greater than 800 Hz
Output Impedance 0.1 W
Features
Dynamics
Adjustments Graduated 1-turn potentiometer used to
optimize the AC response for various load
parameters