QL Series II

Bench/System Precision Linear Regulated DC Power Supply with digital control, single or triple Outputs, 105 to 242 watts, with/without Remote Interfaces

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Advanced DC power supplies, single or triple output
Up to 112 watts per 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, LAN (P and P(G) models) or GPIB (P(G) models)
LAN interface is LXI compliant
Duplicate power and sense terminals at rear (P and P(G) models)
GPIB is now a factory fit option and cannot be retrofitted. P models had GPIB fitted as standard until 2024 when it became an option (P(G) models)

Datasheet
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Image	Model	Description
	QL355	Bench/System Precision Linear Regulated DC Power Supply 35V/3A or 15V/5A, No Interfaces
	QL355P	Bench/System Precision Linear Regulated DC Power Supply 35V/3A or 15V/5A, USB/RS232/LAN
	QL564	Bench/System Precision Linear Regulated DC Power Supply 56V/2A or 25V/4A
	QL564P	Bench/System Precision Linear Regulated DC Power Supply 56V/2A or 25V/4A, USB/RS232/LAN
	QL355T	Bench/System Precision Linear Regulated DC Power Supply 2 x 35V/3A or 15V/5A plus 1-6V/3A
	QL355TP	Bench/System Precision Linear Regulated DC Power Supply 2 x 35/3A or 15V/5A plus 1-6V/3A, USB/RS232/LAN
	QL564T	Bench/System Precision Linear Regulated DC Power Supply 2 x 56V/2A or 25V/4A plus 1-6V/3A
	QL564TP	Bench/System Precision Linear Regulated DC Power Supply 2 x 56V/2A or 25V/4A plus 1-6V/3A, USB/RS232/LAN
	QL355P(G)	Bench/System Precision Linear Regulated DC Power Supply 35V/3A or 15V/5A, USB/RS232/LAN/GPIB
	QL564P(G)	Bench/System Precision Linear Regulated DC Power Supply 56V/2A or 25V/4A, USB/RS232/LAN/GPIB
	QL564TP(G)	Bench/System Precision Linear Regulated DC Power Supply 2 x 56V/2A or 25V/4A plus 1-6V/3A, USB/RS232/LAN/GPIB
	QL355TP(G)	Bench/System Precision Linear Regulated DC Power Supply 2 x 35/3A or 15V/5A plus 1-6V/3A, USB/RS232/LAN/GPIB