QCL-LAB datasheet(11/24 Pages) WAVELENGTH

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INSTALL FUSES AND SELECT

PROPER VOLTAGE

Figure 11. Fuse Box and Voltage Selector

1. On the back panel, locate the Fuse Box and Voltage

Selector receptacle. (See the Rear Panel diagram on

page 10 for the location.)

2. Insert a small flathead screwdriver into the slot (1) at the

top of the receptacle and twist to open faceplate. The red

fuse drawer and fuses are located in the Ship Kit.

3. On the face of the fuse drawer are two voltage choices.

Based on your country, select the proper fuses to install.

VOLTAGE

FUSE

PART NUMBER

100-120 V

1.25 A, 250 V,

fast blow

Littelfuse 5 x 20 mm,

Part #02351.25HXP

220-240 V

0.63 A, 250 V,

fast blow

Littelfuse 5 x 20 mm,

Part #0217.630MXP

CAUTION: It is imperative that the correct voltage

is used. Serious damage can occur if the incorrect

voltage is selected.

4. Insert the fuses as shown in

Figure 12, with a short fuse

at the contact end of the receptacle. Then, turn the drawer

until the correct voltage label is at the top and replace it

in the receptacle. Press firmly to make sure the drawer is

completely seated. It should be flush with the receptacle.

Figure 12. Fuse Installation and Voltage Selector

5. Close the faceplate, again pressing firmly until it is flush.

The correct voltage label is shown through the Voltage

Window (2) on the faceplate.

CONNECT POWER

Insert the female end of the IEC AC power cord into the Power

receptacle on the back panel and then plug the male end into

the power source.

WIRE A TEST LOAD

Use of a test load is recommended for setup of the QCL

instrument. Use the Wavelength test loads listed on page 1, or

when building your own test load, a 10 Ω resistor with a 50 W

power rating is recommended for the QCL500, QCL1000,

and QCL1500. For the QCL2000, a 50 W 5 Ω resistor is

recommended.

•

Install the test load by either connecting to the QCL SMA

port or wiring the load to PIN 5 and PIN 9 on the QCL

D-SUB as shown in

Figure 13.

QCL

SMA

QCL

NOTE: The SMA case is electrically connected to the QCL chassis.

QCL D-SUB

6 7 8 9

1 2 3 4 5

Figure 13. QCL Wiring Diagram

-V

Pin 9 QCL +

or SMA Outer Ring

Pin 5 QCL -

or SMA Center Pin

QCL Driver

Current Sink

Test Load

Figure 14. Test Load Polarity Diagram

QCL-LAB Datasheet(PDF) 11 Page - Wavelength Electronics, Inc.

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