Over-voltage Protection:
(OVP)
Over-current Protection:
(OCP)
Protection Functions:
METER SPECIFICATIONS
Display Type:
Voltage (CI mode):
Current (CV mode):
V x A:
ALARM OUTPUT
Isolated rear-panel open-collector output signal. User can select output to be activated for either
OVP, OCP, Overtemperature or Sense miswiring, or for any of those four faults.
KEYBOARD & ROTARY CONTROL
All functions, including the selection and set-up of the remote control interfaces, can be set from the
keyboard. The rotary jog control can be used to adjust output voltage and current settings in a
quasi-analogue mode.
INTERFACES (QL355P & QL564P only)
Full remote control facilities are available through the optional RS232, GPIB and USB interfaces.
Setting and readback resolutions are the same as for the Output and Meter specifications
respectively.
RS232:
IEEE-488:
USB:
Remote Command
Processing Time:
GENERAL
AC Input:
Power Consumption:
Operating Range:
Storage Range:
Environmental:
Cooling:
Store/Recall:
Safety:
EMC:
Size:
Weight:
Range 1V to 40V (QL355), 1V to 60V (QL564)
Resolution 0·1V; accuracy ± (2% + 0·5V)
Response time typically 100µs
Range 0·01A to 5·5A (QL355), 0·01A to 4·4A (QL564)
Resolution 0·01A; accuracy ± (0·2% + 0·01A)
Response time typically 35ms
Output trips off for OVP, OCP, over-temperature and Sense miswiring.
5-digit (Volts), 4-digit (Amps), 14mm (0·56") LED.
Resolution 10mV
Accuracy ± (0·1% of reading + 10mV)
Resolution 0·001A; 0·1mA on 500mA range
Accuracy ± (0·2% + 0·005A); ± (0·2% + 0·5mA) on 500mA range
Resolution 0·01W; 0·001W on 500mA range
Accuracy ± (0·3% + 0·05W); ± (0·3% + 0·005W) on 500mA range
Variable Baud rate, 19200 Baud maximum. 9-pin D-connector.
Single instrument or Addressable RS232 Chain (ARC) operation.
Conforming with IEEE488.1 and IEEE488.2
Standard USB hardware connection.
Typically <80ms between receiving the command terminator for a
step voltage change at the instrument and the output voltage
beginning to change.
230V AC or 115V AC ± 10%, 50/60Hz. Installation Category II
250VA max.
+5ºC to +40ºC, 20% to 80% RH
−40ºC to + 70ºC
Indoor use at altitudes up to 2000m, Pollution Degree 2.
Intelligent variable-speed fan.
Over-temperature trip shuts down output if internal temperatures
exceed predetermined thresholds.
Up to 10 set-ups can be saved and recalled via the keyboard or
remote interfaces.
Complies with EN61010−1
Complies with EN61326
140 x 160 x 290mm (WxHxD), excluding feet and terminals.
5·5kg
15