Trek 20-20C-HS High-Voltage Power Amplifier - Manual (Page 2)

Features (cont.)
Dynamic Adjustment Graduated 1-turn potentiometer is used to
optimize the AC response for various load
parameters
Limit/Trip Mode Switch selectable for either limit or trip.
Graduated 1-turn potentiometer is used to
adjust limit or trip level from 0 to 100% peak
current. There is one LED indicator and one
BNC connector
Trip Status Indicator
and Connector An indicator will illuminate and a BNC will
provide a TTL low when the high-voltage is
disabled due to the output current exceeding
the current trip level, the detection of a high-
voltage power supply fault, removal of one of
the panels, or if the 20/20C-HS is out of
regulation for greater than 500 ms.
Out of Regulation
Status Illuminates and a TTL low is provided when unit
fails to produce required HV output such as
during a current limit
Mechanical
Dimensions 279 mm H x 482 mm W 654 mm D
(11” H x 19” W x 25.75” D)
Weight 24.9 kg (55 lb)
HV Connector Caton High Voltage Connector
BNC Connectors Amplifier Input, Voltage Monitor, Current Monitor,
Remote High Voltage ON/OFF, Out of Regulation
Status, Fault/Trip Status
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:
104 to 127 V AC or 180 to 250 V AC,
either at 48 to 63 Hz
AC Line Receptacle Standard IEC 320 three-prong AC line
connector
Power Consumption 1000 VA, maximum
Supplied Accessories
Operators’ Manual PN: 23461
HV Output Cable PN: 43466
Line Cord, Spare
Fuses PN: N5011.
destination Selected per geographic
Measurement and Power Solutions TM
www.trekinc.com
Model 20/20C-HS Specifications
Performance
Output Voltage
Range 0 to ±20 kV DC or peak AC
Output Current
Range 0 to ±20 mA DC or ±60 mA peak for 1 ms (must
not exceed 20 mA rms)
Input Voltage Range 0 to ±10 V DC or peak AC
Input Impedance 25 kW, nominal
DC Voltage Gain 2000 V/V
DC Voltage Gain
Accuracy Better than 0.1% of full scale
DC Offset Voltage Better than ±2 V
Output Noise Less than 1.5 V rms*
Slew Rate
(10% to 90%, typical) Greater than 800 V/µs
Large Signal
Bandwidth
(1% distortion) DC to greater than 5.2 kHz
(The unit will trip when maximum is reached)
Small Signal
Bandwidth (-3dB) DC to greater than 20 kHz
Stability
Drift with Time Less than 50 ppm/hr, noncumulative
Drift with Temp Less than 100 ppm/°C
Voltage Monitor
Ratio 1/2000th of the high-voltage output
DC Accuracy Better than 0.1% of full scale
DC Offset Voltage Less than ±2 mV
Output Noise Less than 10 mV rms*
Output Impedance 47 W
Current Monitor
Ratio 1 V/6 mA
DC Accuracy Better than 1% of full scale
Offset Voltage Better than ±10 mV
Output Noise Less than 30 mV rms*
Bandwidth (-3dB) DC to greater than 20 kHz
Output Impedance 47 W
Features
High-Voltage On/Off
Local Individual push-button switch
Remote TTL compatible input. TTL high (or open) turns
off high-voltage output. TTL low turns on high-
voltage output.
*Measured using the true rms feature of the HP Model 34401A digital multimeter Copyright ã 2013 TREK, INC. All specifications are subject to change. 1322/JRB