Agilent Technologies 664xA, 665xA, 667xA, 668xA, AGILENT Model 6653A: 3145A-00551, Model 6641A: 3217A-00111, Model 6645A: 3215A-00111, Model 6651A: 3130A-00171, Model 6652A: 3201A-00381, Model 6654A: 3148A-00391, Model 6655A: 3152A-00176, Model 6671A: 3129A-00218, Model 6672A: 3138A-00101, Model 6673A: 3138A-00101, Model 6674A: 3133A-00161, Model 6675A: 3138A-00101, Model 6680A: 3302A-00101, Model 6681A: 3250A-00101, Model 6682A: 3339A-00101, Model 6683A: 3339A-00161, Model 6684A: 3339A-00101

Installation 44

Table 2-1. Items Supplied (continued)

Output

hardware Series 667xA only

Output hardware (screws with nuts and lockwashers) for securing your load wires to the output bus bars

(see Table 1-6).

Pack return

system Series 668xA Only

(Agilent P/N 5080-2430). Materials and instructions for properly disposing of the shipping carton and

packing materials.

Guide change

page If applicable, change sheets may be included with this guide. If there are change sheets, make the

indicated corrections in this guide.

Location and Temperature

Bench Operation

The “Supplemental Characteristics” in Chapter 1 give the dimensions of your power supply. The cabinet has plastic feet that

are shaped to ensure self-alignment when stacked with other Agilent System II cabinets. The feet may be removed for rack

mounting. Your power supply must be installed in a location that allows sufficient space at the sides and rear of the cabinet

for adequate air circulation. Minimum clearances are 1 inch (25 mm) along the sides. Do not block the fan exhaust at the

rear of the supply.

Rack Mounting

Series 668xA supplies weigh 51.3 kg (113 lb). Obtain adequate help when mounting the supply in the

rack.

The power supply can be mounted in a standard l9-inch rack panel or cabinet. Rack mounting kits are available as Option

908 or 909 (with handles). Installation instructions are included with each rack mounting kit.

Series 667xA & 668xA

Series 667xA and 668xA supplies require instrument support rails for non-stationary installations.

These are normally ordered with the cabinet and are not included with the rack mounting kits.

Temperature Performance

A variable-speed fan cools the supply by drawing air through the sides and exhausting it out the back. Using Agilent rack

mount or slides will not impede the flow of air. The temperature performance is as follows:

Series 664xA & 665xA Operates without loss of performance within the temperature range of 0 °C to 40 °C and with

derated output from 40 °C to 55 °C.

Series 667xA & 668xA Operates without loss of performance within the temperature range of 0 °C to 55 °C.

It a Series 664xA or 665xA power supply is operated at full output current for several hours, the sheet

metal immediately under the transformer (near the right front) can get very hot. Do not touch this area of

the cabinet. The line cord also can become quite warm. Both of these conditions are normal.