Power Supplies


	Regulated Power Supplies

		CONTROL MODULE - All power supply controls and visual indicators are located in a 19" wide control module which can be mounted in the main power supply cabinet. It is also available for remote rack mounting, or in a separate enclosure for remote bench top mounting. ANALOG INPUT - A 0 - 10V analog voltage is applied to the EXT INPUT providing for remote control of the power supply output current. COARSE, MEDIUM AND FINE CURRENT CONTROL - All three current controls afford an easy and accurate way of setting the load current from one part in 10³ to one part in 10⁶ (-4SS). OVERLOAD PROTECTION - Current limiting prevents the power supply from exceeding maximum rated current output by automatically turning the DC power OFF. CURRENT METER - The total output current flowing through the output load is indicated on the 4½ digit meter display. FLOW SWITCH INTERLOCK - Prevents DC power from being applied unless adequate water flow is established. CASTER MOUNTED - All power supplies above 2.45 kW are mounted on casters to facilitate movement from one location to another when required. General Walker Scientific manufactures a broad range of high stability, current regulated DC power supplies. The built-in controls are designed to provide an output of continuously regulated DC current to a variety of output loads. The solid state regulator elements are capable of providing current stability of 0.0003% (3 ppm) to 0.001% depending upon the regulation option. Current regulation is accomplished by a solid state transistorized series regulator. A wide range of standard and non-standard output configurations are available from 1.25 kW to well over 100 kW. Numerous standard and optional features afford the versatility required to adapt to almost any current regulated power supply application.




		Remote Control Console Option



	Panel Mounted Control

Description:

The basic enclosure of every power supply contains all electrical/electronic components, a control panel, connections for AC input power, DC output terminals and standard hose couplings for water cooling requirements.

The standard rack mounted control module (see options for remote control console) is located in the top front section of the power supply. The panel includes COARSE, MEDIUM and FINE (-4SS only) CURRENT CONTROLS, a panel meter to display the output current, switches for power ON/OFF, DC ON, DC OFF with indicator lights for power ON, DC ON and water FLOW. Power supplies equipped with the current REVERSAL option will include a REVERSAL switch and indicator light. An EXT INPUT is provided for connection to an external sweep generator or controller.

Each power supply ordered with computer compatible interfaces will include both RS-232 and IEEE-488 ports located on the front panel. Only one port is active at any one time. See “Options” sections for detailed description.




		Power Supply Control Panel



	• Options for Power Supplies


	DC Output Range: A full range of Precision DC Current Regulated Power Supplies is available with output power in the range of 1.25 kW to 100 kW with either -3SS or -4SS regulation and input power to match any facility requirement. When requesting a quotation, please specify input and output requirements.

POWER	CURRENT	VOLTAGE
1.25kW - 100kW	0-10A to 0-500A	0-10V to 0-500V


	Regulation Selection:

SUFFIX	SHORT TERM (30 min.)		LONG TERM (8 hrs.)		CURENT CONTROL RESOLUTION
SUFFIX	10-100%	1-10%	10-100%	1-10%	COARSE	MEDIUM	FINE
- 3SS	0.001%	0.01%	0.01%	0.1%	1 part in 10³	5 parts in 10⁵	N/A
- 4SS	0.0003%	0.001%	0.001%	0.01%	1 part in 10³	5 parts in 10⁵	1 part in 10⁶


	Typical Power Supplies: Typical Precision DC Current Regulated Power Supplies between 1.25 kW and 22 kW.

Power Supply Model Number

Use
With Magnet Size

Standard Input Power

Output

Cooling Requirements

Physical

Amps

Vdc

BTU/Min Max Inlet Temp

Flow Rate

Weights

Cabinet
Dimensions

Power Supply Only

Power Supply & Magnet

Power Supply
Only

Power Supply and Magnet

Net Wt.

Ship Wt.

HS-525-4SS

120 V
50 or 60 Hz
Single Phase

0-25

0-50

1.25

15 BTU
80°F (27°C)

93 BTU
80°F (27°C)

1 gpm
(4 lpm)
30-100 psi

Approx.
175 lbs
(79 kg)

Approx.
225 lbs
(102 kg)

22" (56cm) W
24" (61cm) D
31" (79cm) H

HS-735-4SS

4"
5"

208, 220, 230,
240 V/50 or 60 Hz Single Phase

0-35

0-70

2.45

20 BTU
80°F (27°C)

170 BTU
80°F (27°C)

1 gpm
(4 lpm)
30-100 psi

Approx.
200 lbs
(90 kg)

Approx.
250 lbs
(113 kg)

22" (56cm) W
24" (61cm) D
31" (79cm) H

HS-1050-3SS
HS-1050-4SS
HS-50100-3SS
HS-50100-4SS

5"
7"

120/208 V
60 Hz
3 Phase 4 Wire

0-50
0-50
0-100
0-100

0-100
0-100
0-50
0-50

5.0

30 BTU
80°F (27°C)

350 BTU
80°F (27°C)

2 gpm
(8 lpm)
30-100 psi

2-3 gpm
(8-11 lpm)
30-100 psi

Approx.
390 lbs
(176kg)

Approx.
475 lbs
(215 kg)

22" (56cm) W
31" (79cm) D
38" (97cm) H

HS-1365-3SS
HS-1365-4SS
HS-65130-3SS
HS-65130-4SS

7"
9.5"
12"

120/208 V
60 Hz
3 Phase 4 Wire

0-65
0-65
0-130
0-130

0-130
0-130
0-65
0-65

8.5

42 BTU
80°F (27°C)

590 BTU
80°F (27°C)

2 gpm
(8 lpm)
30-100 psi

3 gpm
(11 lpm)
30-100 psi

Approx.
390 lbs
(176kg)

Approx.
475 lbs
(215kg)

22" (56cm) W
31" (79cm) D
38" (97cm) H

HS-1575-3SS
HS-1575-4SS
HS-75150-3SS
HS-75150-4SS

9.5"
10"

120/208 V
60 Hz
3 Phase 4 Wire

0-75
0-75
0-150
0-150

0-150
0-150
0-75
0-75

11.5

50 BTU
80°F (27°C)

750 BTU
80°F (27°C)

2 gpm
(8 lpm)
30-100 psi

4-5 gpm
(15-19 lpm) 30-100 psi

Approx.
580 lbs
(263kg)

Approx.
700 lbs
(317 kg)

22" (56cm) W
31" (79cm) D
47" (119.5cm) H

HS-1785-3SS
HS-1785-4SS
HS-85170-3SS
HS-85170-4SS

12"

120/208 V
60 Hz
3 Phase 4 Wire

0-85
0-85
0-170
0-170

0-170
0-170
0-85
0-85

14.5

60 BTU
80°F (27°C)

960 BTU
80°F (27°C)

2 gpm
(8 lpm)
30-100 psi

5 gpm
(19 lpm)
30-100 psi

Approx.
780 lbs
(353kg)

Approx.
930 lbs
(421 kg)

22" (56cm) W
31" (79cm) D
47" (119.5cm) H

HS-20100-3SS
HS-20100-4SS
HS-10200-3SS
HS-10200-4SS

15"

120/208 V
60 Hz
3 Phase 4 Wire

0-105
0-105
0-210
0-210

0-210
0-210
0-105
0-105

74 BTU
80°F (27°C)

1430 BTU
80°F (27°C)

2 gpm
(8 lpm)
30-100 psi

8 gpm
(30 lpm)
30-100 psi

Approx.
975 lbs (442kg)

Approx.
1150 lbs
(521 kg)

22" (56cm) W
31" (79cm) D
47"(119.5cm) H


	Download a printable version of the Power Supplies brochure.


	• See our line of electromagnets for use with these power supplies

• Accessories

Hall Effect Gaussmeters
Model UFC-5 Hall Field Controller
Model WS-8-10D Digital Electronic Sweep

Ask an Applications Expert about any of these products