power supplies, scientific instruments scientific instruments
Manufacturer of high voltage power supplies
power supplies, photomultiplier tubes
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477

Precision High Voltage Modules

Applications:
Photomultiplier, mass spectrometers, nuclear and medical instrumentation.

  • ±0.5kV, ±1kV ±2kV, ±3kV versions
  • Input 230 / 115VAC
  • Switchable output polarity
  • Remote voltage programming or potentiometer setting
  • Very low ripple and noise
  • Direct reading meter for voltage & current
  • Flashover & short circuit protected


Electrical Specification
Positive & Negative Polarity Units

Order Code

Polarity

Ouput Voltage

Output Current

Ripple pk-pk

Input Voltage
477-301 Positive ±500V 8mA 5mV 115V / 230V ac
477-302 Negative ±1kV 4mA 4mV 115V / 230V ac
477-303 Positive ±2kV 2mA 2mV 115V / 230V ac
477-304 Negative ±3kV 1.3mA 5mV 115V / 230V ac

Input Voltage

115/230V ac nominal, ±10%, 50/60Hz (Switchable 2 ranges). 35VA rating at full load.

Line Regulation:

<20ppm over input voltage range.

Drift (after 1 hour warm up)

<20ppm for zero to full load.

Load Regulation

<15ppm in any 15 minute period, <50ppm in any 8 hour period.

Temperature coefficient <50ppm / oC at maximum rated output.
Control of output (Local) Front panel 10 turn potentiometer with locking vernier calibration.
Control of output (Remote) 0 to +10V for 0 to 100% rated output voltage, input Z = 10k.
Voltage rate of change limit Direct reading 4½ digit meter, switch selectable between output current and voltage. Available also are buffered monitor outputs for both current and voltage (available from the analogue port on the rear panel, 0 to +10V corresponds to 0 to 100% of the rated output) Accuracy: Voltage 1%. Current =2%.
Protection Current is limited to approximately 110% of maximum rated output until overload condition is removed.
Protected against intermittent flashover to ground.
Voltage & current motor Direct reading 4½ digit meter, switch selectable between output current and voltage. Available also are buffered monitor outputs for both current and voltage (available from the analogue port on the rear panel, 0 to +10V corresponds to 0 to 100% of the rated output) Accuracy: Voltage 1%. Current =2%.
Auxiliary output Fixed ±5V and ±15V dc @ 250mA, regulation : ±1%, ripple 10mV pk-pk.
Reference output +10V.0V ±0.05%, temperature coefficient : <50ppm / oC.

Environmental Specification

Temperature, operating

115/230V ac nominal, ±10%, 50/60Hz (Switchable 2 ranges). 35VA rating at full load.

Temperature, storage

-20 to +75oC. Humidity (RH) <31oC 80% maximum non-condensing

Pollution category

II Humidity (RH) >30oC Decrease linearly to 50% at 40oC

Mechanical Specification

Dimensions

WxHxD: 212.73 x 98.88 x 254.0 mm
(8.375” x 3.89” x 10.0”)

Weight

4kg (9lb) approximately.

Input

IEC mains connector on rear panel.

Control 9 way “D” type on rear panel.
HV Output 2 off HV SHV connectors on front panel.
Aux Output Binder 680 series, 7 pins, on front panel.

Download PDF

Download PDF:

Data Sheet


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