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Measurement and power solutions – Trek 20-20C-HS High-Voltage Power Amplifier User Manual

Page 2

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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