11 - Specification
44
QPX750 Instruction Manual
11
SPECIFICATION
11.1
Output Specifications
Voltage Range:
Two ranges: 0V to 50V or 0V to 80V
Current Range:
0.01A to 50A
Power Range:
Up to 750W: within envelope shown
(12V/50A, 36V/20A, 60V/12A & 80V/9.4A
guaranteed).
Or programmable power limit 100W to
600W in 10W increments.
Voltage Setting:
Resolution: 1mV (50V Range),
2mV (80V Range)
Accuracy: 0.1% of setting ± 2mV,
(± 4mV on 80V range)
Current Setting:
Resolution 10mA
Accuracy: 0.3% of setting ± 20mA
Operating Mode:
Constant voltage, constant current or
constant power with automatic cross-over
dependant on output setting parameters.
CV, CI, or CP mode indication in display.
Output Switch:
Independent electronic switching, with ON indication.
Pre-set voltage and current displayed when off.
Output Terminals:
Front & rear panel safety terminals accepting 6mm wire diameter, 6mm plugs
or 8mm spades at 50 Amps max, or 4mm plugs at 30 Amps max.
Sensing:
Switchable between local and remote. Screwless remote sense terminals on
both front & rear panels. Sense miswiring trip and indication.
Ripple & Noise
(20MHz bandwidth):
Typically, <3mVrms, <20mV pk-pk at maximum load, CV mode
Load Regulation:
Change in output for any load change within PowerFlex envelope, using
remote sense:
Constant voltage: <0.01% ± 5mV
Line Regulation:
Change in output for a 10% line change:
Constant voltage: <0.01% ± 5mV
Transient Response:
To within 100mV of set level for a 5% to 95% load change.
Rear Terminals: <2ms Front Terminals: <2.5ms
Output Protection:
Output will withstand an applied forward voltage of up to 90V.
Reverse protection by diode clamp for reverse currents up to 3A.
Over-voltage Protection
(OVP):
Range 2V to 90V. Resolution 0.1V; accuracy: 0.2% ± 0.2V.
Response time typically 100
µ
s.
Over-current Protection
(OCP):
Range 2A to 55A. Resolution 0.1A; accuracy: 0.5% ± 0.2A.
Response time typically 100ms.
Over-temperature
Protection:
The output will be tripped off if a fault causes the internal temperature to rise
excessively.
Temperature
Coefficient:
Typically, <100ppm/°C
9.4, 80
20, 36
50, 1
0
20
40
60
80
100
0
20
40
60
Vo
lts
(V)
Amps (A)
QPX750 Power
Envelope
