Aim TTi QL355TP SII Bruksanvisning

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A I M & T H U R L BY T H A N DA R I N S T R U M E N T S
QL Series II
Precision linear dc power supplies - single and triple outputs
unrivalled accuracy, resolution, stability and noise performance
advanced user interface gives superior control
aimtti.com
multiple output ranges provide greater flexibility
aimtti.co.uk
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aimtti.us
Linear regulation with more than 100 watts per output
Advanced dc power supply range, single or triple output
Very high precision, very low noise, excellent dynamics
Advanced user interface with numeric and rotary control
Multiple voltage/current ranges for increased flexibility
Multiple non-volatile memories for power supply set-ups
Switchable remote sense provides perfect load regulation
Comprehensive protection including OVP and OCP trips
Compact bench footprint; modular width for rack mounting
Auxiliary output fully variable 1.00V to 6.00V at 3A
with selectable voltage and current metering (T models)
Bus programmable via USB, RS232, GPIB or LAN (P models)
LAN interface is LXI class C compliant
Duplicate power and sense terminals at rear (P models)
Building upon success
The original QL series re-defined the laboratory power supply in terms of
precision and performance.
Now the QL Series II builds upon that success and adds new features and
models.
One third or two third
rack width, 4U height
Linked mode control for
tracking operation or
series/parallel wiring
Up to 160 memory stores
for voltage and current
settings
Variable over-voltage and
over-current protection
trips
Safety binding post terminals
can accept fixed-shroud 4mm plugs** as
well as normal plugs, bare wires, and fork
connectors
16-bit precision, 1mV
setting resolution
Current resolution down
to 0.1mA
Individual output switches
plus master control
Remote or local sense with
keypad selection
Auxiliary output, fully variable 1.00V to 6.00V
at 3A (bus control and readback on P versions)
Rotary control of voltage
and current
Watts display
(V x A)
Exceptional precision
The QL series offers an unparalleled level of precision. Voltage and current are
controlled using instrumentation quality 16 bit DACs enabling voltages to be set
to 1mV resolution even at full output voltage.
Indeed, the accuracy is sufficient for the QL to be used as a calibration source for
some hand-held DMMs.
Multiple ranges for greater flexibility
The QL series II provides multiple ranges for increased current capability at
lower voltages. The QL564, for example, is a 112W PSU with three ranges.
The main range offers 0 to 56 volts at up to 2 amps. The higher current range
provides up to 4 amps for voltages up to 25V. A further low current range
provides an enhanced current setting and measurement resolution of 0.1mA.
Unrivalled performance
The QL series uses pure linear technology and offers unrivalled performance in
terms of regulation, output noise and dynamics.
Line and load regulation are close to the limit of measurement. Recovery time
from transient current pulses is better than 50µs.
Differential output noise is less than 350µV rms in CV mode and down to
20µA rms in CI mode.
Of equal importance for critical applications in areas such as telecoms is
common mode noise current (the noise current flowing between the output
terminals and ground). This is less than 4µA rms on the QL Series - dramatically
better than most other PSUs.
Fully bus programmable via USB, RS232,
GPIB or LAN interfaces (P versions)
Multiple ranges for
increased flexibility
Duplicate rear terminals
(P versions)
Direct numeric setting
of voltage or current
Exceptional facilities and performance
Fast, simple and safe to use
The user interface of the QL series has been painstakingly designed to provide
rapid control whilst guarding against any possibility of error.
Unlike other digitally controlled units, the QL series provides both numeric and
rotary control.
Illuminated keys and display legends provide instant confirmation of settings
and status.
Voltage and current setting can be performed in either of two ways:
Direct numeric entry
Settings can be made by direct numeric entry using the 0 to 9 keypad.
Each new setting is previewed on the display and must be confirmed with the
OK key.
Settings recalled from memory are similarly previewed and confirmed.
Numeric setting is very fast requiring only three key presses to set to 5 volts,
for example, (V, 5, OK).
To set a more precise level such as 12.725 volts requires more key presses, but
can still be done in seconds.
Incremental rotary control
For those preferring quasi-analogue control, or for applications where the
voltage or current must be gradually changed, the Jog wheel is available. The
wheel has a positive stepped action but can be spun rapidly when required.
Output voltage can be incremented or decremented in steps of 0.1V, 10mV or
1mV. Current steps can be selected from 0.1A down to 0.1mA.
The Jog function can be left permanently engaged or can be disabled at the
touch of a button.
Instant Limits view
To enable the current limit to be set before connecting the load, the limit
setting is displayed when the output is set to Off.
Pressing the Limits key at any time provides a temporary display of the limit
values allowing precise adjustment to be made.
Setting memories for added convenience
The QL Series II provided storage of up to 50 power supply sets-up in non-
volatile memory (160 set-ups for a triple). Voltage, current, OVP and OCP are
all saved.
An further power-down memory is also incorporated. Upon mains switch-off,
the set-up of the PSU is saved and is automatically restored at switch-on.
On the triple output models, independent memories are provided for each
output, plus an additional set for ‘linked’ mode where the user may wish to
recall settings for both outputs simultaneously.
Remote or local sense
The QL series provides full remote sense capability via dedicated sense
terminals. Remote sense is essential to maintain regulation at the load (two
0.01 Ohm connection leads will drop 100mV at 5 amps).
When remote sense is not required, internal local sensing can be selected at
the touch of a button.
Further facilities - triple output models
These triple output models have two main outputs plus one auxiliary output.
The casing is twice the width of a single output model (two-thirds rack).
Linked mode convenience
The triple output models have two identical outputs which are both
independent and isolated.
Illuminated keys selects which output is to be adjusted and provide
unambiguous indication.
In situations where the user wishes to set similar voltages or currents on both
outputs, “linked” mode is available. When linked, all adjustments are applied
to both outputs simultaneously.
Linked mode can provide tracking outputs
and is particularly useful when the user
wishes to wire the outputs in series or
parallel to obtain higher voltages or
currents. A “copy” function allows all of
the settings of one output to be duplicated
on the other prior to linking.
For even greater flexibility, the outputs can be linked when set to different
voltages or currents allowing separate settings to be loaded into the linked-
mode memories for simultaneous recall.
Auxiliary output for low voltage circuits
The triple output models incorporate a third “auxiliary” output intended for
powering logic and other low voltage circuitry.
This output is fully isolated from the main outputs and provides a fully variable
voltage of between 1.00 and 6.00 volts at a current of up to 3 amps.
Voltage and current can be read on the main display at the touch of a button.
An independent output on/off switch is provided.
On P versions, voltage and on/off status are bus controllable, and output
current and status can be read-back.
Note that, unlike the main outputs which are pure linear, the auxiliary output
incorporates a switch-mode down converter.
Comprehensive output control
Each output has its own illuminated dc on/off key providing completely
independent control.
For situations where power needs to be
connected or disconnected from all three
outputs together, master on/off keys are
also provided.
OVP and OCP trips with “alarm” output
The QL series provides fully adjustable over-voltage and over-current trips.
These trips can be used both as a fail-safe against accidental mis-setting and
as a protection against inappropriate load conditions.
In addition to turning the output off, a trip condition switches the rear panel
alarm signal enabling other equipment to be controlled.
For complete protection of the power supply, the trip will also be operated by
over-temperature, or excess voltage on the sense terminals.
Instant watts display
The product of voltage and current can be displayed at any time by pressing
the V x A button.
The power is displayed with a resolution down to 1 milliwatt.
Safety binding-post terminals
All QL series power supplies are fitted with the new TTi designed output
terminals. As well as acting as conventional binding posts for bare wires,
spade connectors, or standard 4mm plugs, these can accept a 4mm safety
plug with rigid insulating sleeve,
a requirement specified by an
increasing number of laboratories
for safety reasons.
Limited opening length combined
with raised insulated shoulders also
make these terminals “touch proof
for voltages up to 250V.

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Modell: QL355TP SII

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