Low pressure gradient HPLC pump for Ultra High Pressure Applications

AZURA P 6.1L Low Pressure Pump with 5 ml pump head, stainless steel

The AZURA® Pump P 6.1L uses technology to overcome the challenges of pumping LC solvents at high pressure and defined flow rates. This pump is designed to fulfill the needs for either high pressure or low pressure gradient forming. The pump can deliver flow in the range of 0.001–50 ml/min at pressures up to 1000 bar (depending on model). The AZURA® binary pump contains two identical high pressure pumps, a 2×2-channel inlet solvent selection valve and the low-volume AZURA® mixer. The AZURA® quaternary pump contains one high pressure pump and an integrated LPG mixing block with a 4-channel inlet solvent selection valve and a low-dwell volume AZURA® mixer. The integrated degasser and AZURA® inline filter are completing this analytical AZURA® P 6.1L HPLC pump and turn it into a work horse in the lab. This pump is also available with wetted materials made from ceramic, PEEK and titanium for biocompatible applications.

Max. flow rate	5 ml/min
Flow rate range	0.001 - 5 ml/min
Flow rate increment	0.001 ml/min
Pressure range
Maximum delivery pressure [psi]	14500 psi
Maximum delivery pressure [MPa]	100 MPa
Maximum delivery pressure [bar]	1000 bar
Pump head materials	Stainless Steel
Gradient	Low pressure gradient (quaternary)
Leak management	Yes
Wetted materials	GFP (graphite fiber reinforced PTFE), sapphire, ruby, FKM, PEEK, PTFE, Systec AF ^TM, Zirconium oxide
Pump features	Active pulsation compensation, RFID for automatic pump head detection, Integrated pressure sensor, Purge valve (manual), Leak management, Piston seal wash

Best working conditions	0.02 - 5 ml/min
Continuous working conditions	0.1–4.0 ml/min
Flow rate accuracy	± 0.25 %
Flow rate accuracy conditions	measured at 5–80 % of flow range, using ethanol
Flow rate precision	≤ 0.04 % RSD or 0.008 min SD (whichever is greater)
Flow rate precision conditions	based on the retention time at constant room temperature
Gradient range	0–100 %
Gradient range (recommended)	1–99 %
Gradient accuracy	± 0.3 % at 1 ml/min, 150 bar ethanol/caffeine tracer) ± 2 % (1–99 %, measured at 5–50 % of the flow range, water/caffeine tracer)
Gradient precision	< 0.1% RSD at 1 ml/min, 0.5 % RSD overall, based on retention time at constant room temperature
Gradient minimum increment	0.1 %
Mixing volume	100 µl
Delay volume	160 µl
Degasser	Yes
Pulsation	< 2 % Amplitude (typically: < 1.3 %) or < 3 bar (0.3 MPa), whatever is greater, at 1 ml/min ethanol, at all pressures > 10 bar (1 MPa, 147 psi)
Pulsation compensation	Active pulsation compensation
Active piston seal wash	Yes
Piston seal washing	Yes
System protection	Soft start, Pmin und Pmax are programmable
Pump Outlet thread	Female UNF 10-32 (coned)
Pump head inlet (standard)	UNF 1/4-28 Thread
Pump head outlet (standard)	UNF 10-32 Thread

Interfaces	LAN, Pin header connectors (Analog IN, Start In, Error IN)
Control	LAN, Analog and event control, Mobile Control
Analog inputs	Flow rate, 0–10 V via pin header connectors
Analog outputs	8 event outputs (TTL, OC, Relais) and 24 V

Power supply	100–240 V; 50–60 Hz; Maximum power consumption 100 Watt
Dimensions	361 mm × 208.2 mm × 523 mm (W × H × D)
Leak sensor	Yes
Ambient conditions	4–40 °C (39.2–104 °F) Air humidity below 90 %, non-condensing

Certified Quality

KNAUER is known for the quality of its products and has been certified several times. We produce high-tech laboratory instruments for research, routine analysis and production.
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In addition, we have extended documentation about all our products, including CE Declarations of Conformity.
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