New Focus 901 Manuel utilisateur

USER’S GUIDE

±15 V Current-Limited Power Supply

Model 0901

Newport Corporation

3635 Peterson Way

Santa Clara, CA 95054

www.newport.com/newfocus

2New Focus

Warranty

Newport Corporation guarantees its products to be free of defects for one

year from the date of shipment. This is in lieu of all other guarantees, ex-

pressed or implied, and does not cover incidental or consequential loss.

Information in this document is subject to change without notice. Copy-

Focus logo and symbol are registered trademarks of Newport Corporation

Document Number 90061076 Rev. A

3Model 0901 User Guide

Contents

Warranty........................................................................................2

Important User Safety Information ................................4

General Warnings ............................................. 4

Deﬁnitions and Symbols.................................. 5

Environmental Speciﬁcations ......................... 5

Contact Information ......................................... 6

Introduction.................................................................................7

Getting Started ............................................................ 8

Voltage and Fuse Selection.............................. 8

Operation..................................................................................10

Output Characteristics ................................... 10

Cables .............................................................. 11

Customer Service ...............................................................12

Technical Support........................................... 12

Service ............................................................. 12

4New Focus

IMPORTANT USER SAFETY INFORMATION

–DO NOT DISCARD

General warning in the event of a hazard

• Donotpositionthisdeviceinsuchamannerthat

would make it difﬁcult to disconnect the power cord

from the device or the power source.

• Positiontheequipmentsothataccesstothemains

disconnect ON/OFF switch on the front panel readily

available.

• PushthepowerON/OFFswitchinthefrontofthe

device to OFF position to turn OFF the power to

the internal electronics. The OFF position: push the

actuator or switch rocker arm so the “O” depressed.

(To connect power to device, push the actuator or

switch rocker arm so the “1” depressed).

• Fullydisconnectthepowercordofthedevicefrom

MAIN power.

Grounding and Powering the device

• Verifythatthelinevoltagesettingontherearofthe

PowerSupplyModel0901matchesthelocalMain

Powerfromthepowercord.

• Verifythatproperfusesinstalledforampsandtime

delay.

• Toavoidelectronicshock,connecttheinstrumentto

properly earth-ground, 3-prong receptacles by using

the supplied power cord only. Failure to observe this

precaution can reduce equipment performance.

General warning and precaution

• Donotattempttooperatethisequipmentifthereis

evidence of shipping damage or you suspect the unit

is damaged.

• Theusershouldnotattemptanymaintenanceor

service of the device beyond the procedures outlined

in this manual. Any problem that cannot be resolved

should be referred to NEW FOCUS Technical Support.

5Model 0901 User Guide

Deﬁnitions and Symbols

The following terms and symbols are used in this docu-

mentationandappearontheModel0901PowerSupply

where safety-related issues occur.

Electronic shock – This symbol indicates a hazard

arising from dangerous voltage. Any mishandling could

result in irreparable damage to the equipment and per-

sonnel injury.

ON Symbol–ThissymbolrepresentsPowerOn

OFF Symbol–ThissymbolrepresentsPowerOff

Attention – Refer to the operator instructions of manual

before operating equipment.

Voltage Requirements 100/120/220/240 ~VAC, 47.5-66Hz

Electrical Ratings 100-120~VAC, 0.5A; and 220-

240~VAC, 0.25A (47.5-660Hz)

Size (H x W x D) [in. (mm)] 3.5 (90.0) x 7.65 (195.0) x 8.0 (200.0)

Mainframe Weight [lb (Kg)] 6.5 (2.8)

Operating Temperature 10ºC to 40ºC (<90% humidity non-

condensing)

Storage Temperature 0ºC to + 50ºC (<90% humidity non-

condensing)

Relative Humidity, Storage <90% humidity non-condensing

Altitude <3000 meters (10000 feet)

Installation Category II

PollutionDegree 2

Use Location Indoor use only

Environment Speciﬁcation

6New Focus

The power entry module requires two 5x20 mm, Slo-Blo fuses. The table

below identiﬁes the correct voltage selector switch setting and fuse rating

for several common AC power.

Input Power

(47.5 to 66 Hz)

Voltage

Switch Setting

Fuses

(250~VAC Slo-Blo)

100 VAC 100 0.5AT

120 VAC 120 0.5AT

220 VAC 220 0.25AT

240 VAC 240 0.25AT

Contact Information

North America Europe

New Focus Newport/MICRO-CONTROLE S.A

3635PetersonWay  ZoneIndustrielle

Santa Clara, CA 95054 USA 45340 Beaune la Rolande, FRANCE

Telephone: (866) 683-6287 Telephone: (33) 02 38 40 51 56

Telephone: (408) 919-1500

Email: [email protected]

7Model 0901 User Guide

Introduction

TheNewFocusModel0901PowerSupplyisatriple

output, low-noise, ±15-V DC power supply. It is intended

for use with all New Focus brand products which require

±15-V DC, and can also serve as a general purpose supply

for laboratory use. It is capable of simultaneously power-

ing three devices, each requiring ±15 V and up to 300 mA.

Two of the outputs are provided via three-pin M8 style

connectors (compatible with other New Focus products),

while the third uses banana jacks. (See Figure 1.)

Figure 1: Model 0901 front panel.

8New Focus

Getting Started

Voltage and Fuse Selection

The Model 0901 can operate with an input of 100, 120,

220, or 240 V AC with AC frequencies of 47–63 Hz.

The unit is conﬁgured for 120 V AC at the factory; if it

will be used with a different AC voltage, this will need

to be selected on the power module on the back

panel. The fuses may also need to be changed. See

below.

To check the voltage setting, look at the voltage indica-

tor on the AC power module on the back of the power

supply. (See Figure 2.)

Figure 2: Model 0901 rear panel showing AC power module & voltage indicator.

To change the voltage/fuses:

1. Make sure the power supply is turned off.

2. Disconnect the AC power cord.

3. Open the cover of the power module using a small

blade screwdriver or similar tool.

9Model 0901 User Guide

Figure 3: Power module with the cover open

4. Remove the AC-voltage selection wheel from the unit.

Do not attempt to rotate the wheel while it is still

in the power module; the wheel must be removed,

turned, and then reinserted for proper operation.

(See Figure 3.)

5. Reinsert the wheel in the module so the desired AC

voltage can be viewed in the power-module window.

6. Ensure the proper fuses for the new AC voltage are in-

stalled(seeTable1).Pulloutfuseholderstoreplace

if needed.

7. Close the power-module cover.

8. Verify the proper voltage is showing through the mod-

ule window.

9. Reconnect the AC power cord.

Table 1: The AC power module requires two 5x20-mm, 250-V, Slo-Blo fuses. The current ratings of

the fuses should be as shown.

Input Power

(47.5 to 66 Hz)

Voltage

Setting

Switch Fuses

(250~VAC Slo-Blo

100 VAC 100 0.5AT

120 VAC 120 0.5AT

220 VAC 220 0.25AT

240 VAC 240 0.25AT

10 New Focus

Operation

Output Characteristics

The outputs (three pairs of ±15 V) of the Model 0901

are all derived from a common linear supply, but each

incorporates independent current-limiting protection

as shown in Figure 4. As a result, the voltage on each

output differs slightly. The impedance of each output

is approximately 2 ohms, so an output will be reduced

by 0.6 V when providing the full 300 mA. With no load,

outputs should be ±15 V ±3%.

When a load attempts to draw in excess of 300 – 330 mA

the protection is activated. It is accomplished via fast

foldback current limiting (the value of the current limit is

lower for loads which attempt to draw a greater current).

In the extreme case of a short-circuited output, the cur-

rent through the short will be less than 100 mA.

Figure 4: Block diagram and pin assignments (as seen on front panel) of the Model 0901 power

supply.

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