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ManualsBrandsAIM TTI ManualsLaboratory & Bench PSUsBench PSU (adjustable voltage) AimTTi 0 - 60 Vdc 0 - 20 A

CPX400D - Dual 420 watt PowerFlex dc power supply (840W total)

The CPX series is a different type of laboratory power supply designed to meet

the need for flexibility in the choice of voltage and current.

A conventional PSU has a fixed current limit giving a power capability that

reduces directly with the output voltage.

The TTi PowerFlex design of the CPX series enables higher currents to be

generated at lower voltages within an overall power limit envelope.

Each output can provide considerably higher current than a conventional PSU

of the same maximum voltage and power (see power curve).

Example voltage & current combinations for the CPX400D include 60V/7A,

42V/10A, 28V/15A, and 20V/20A.

View and adjust setting limits

at any time.

Custom Limits enables the

analogue controls to cover

any voltage or current range.

Voltage sensing can be

changed between local

and remote at the flick of a

switch.

True analog controls make

adjustment quick and simple.

Safety binding post terminals

can accept fixed-shroud 4mm

plugs** as well as normal

plugs, bare wires, and fork

connectors.

High accuracy four digit

meters have a fixed resolution

for consistent readings at-a-

glance.

S-Lock digitally locks voltage

and current settings at the

touch of a button.

DC output switches enable

voltage and current to be set

up before connecting the load.

Both On/Off provides

synchronous switching of the

outputs.

Isolated voltage tracking

facilitates tracking voltage

rails or control for series or

parallel wiring (120V max. or

40A max.).

Individual over-voltage

protection for each output.

Range Control gives a choice

of PowerFlex (60V/20A) or

fixed range operation (60V/7A

or 20V/20A).

Lock your settings

at the touch of

a button !

Choose voltage and current combinations

to suit your applications !

Building upon success

The CPX400 series, now comprising five models, was developed from the

CPX400A - one of the most successful power supplies ever.

Analog controls with digital stability

As technology has changed, many products have moved from analog controls

to digital ones. Although digital controls suit many instruments, they do not

necessarily suit a bench power supply.

Customer research shows that many users prefer the speed and simplicity of

conventional analog controls for setting voltage and current. Digital controls

may offer greater precision, but often at the expense of ease-of-use. With this

in mind, the CPX400 series retains the true analog controls of its predecessor.

The main disadvantage of analog controls is stability and security. The settings

of analog potentiometers can drift over time. More importantly, the settings

can be changed accidentally with potentially serious consequences.

The CPX series now incorporates S-Lock. One press of the Lock button

transfers control of voltage and current from the analog controls to internal

digital circuitry. This offers not just complete security, but exceptional stability

as well with each setting controlled by an instrumentation quality DAC.

Isolated voltage tracking for maximum flexibility

The two outputs of the CPX400D are completely independent and electrically

isolated from each other.

With V-Track selected, the two outputs remain electrically isolated, but the

voltage control of the Master output sets an identical voltage on the Slave

output.

This enables the user to create two rails of either

polarity and to reference them to different grounds

if necessary (e.g. digital ground and analog ground).

Alternatively the outputs can be wired in series or

parallel to create a voltage capability up to 120V or

a current capability up to 40A with the voltage set

using a single control.

Independent and simultaneous output control

The Both On/Both Off button is in addition to the individual switches for each

output, and allow both outputs to be turned on or off synchronously by a

single button press.

Synchronous switching of the outputs is of increasing importance for circuitry

which can be damaged if one voltage rail is present without the other.