Agilent 1100 G1311A Gradient Pump

HP Agilent 1100 G1311A Gradient Pump

Agilent 1100 G1311A Gradient Pump

Agilent 1100 G1311A Gradient Pump

The HP Agilent 1100 G1311A Gradient Pump ensures virtually pulse-free and stable solvent flow, with dual floating pistons in series, precisely servo-controlled. This design with variable stroke volume allows pulse-free solvent delivery and efficient mixing. An inlet-valve electronically activated and synchronized to piston stroke eliminates vapor formation with volatile solvents and is maintenance free. The HP Agilent quaternary pump is equipped with a high-speed proportioning valve and pre-configured vacuum degasser for convenient low-pressure mixing of up to four solvents and highest flexibility in solvent choices.

HP Agilent 1100 G1311A Gradient Pump Specifications

Setable Flow Range 0.001 – 10 ml/min, in 0.001 ml/min increments
Flow Range 0.2 – 10.0 ml/min
Flow Precision < 0.3% RSD (usually 0.15%), based on retention time, at 1 ml/min
Pressure Operating range 0 – 40 MPa (0 – 400 bar, 0 – 5880 psi) up to 5 ml/min

Operating range 0 – 20 MPa (0 – 200 bar, 0 – 2950 psi) up to 10 ml/min

Pressure Pulsation < 2% amplitude (typically < 1%), at 1 ml/min isopropanol, at all pressures > 1 MPa (10 bar)
Recommended pH Range 1.0 – 12.5, solvents with pH > 2.3 should not contain acids which attack stainless steel
Gradient Formation Low pressure quaternary mixing/gradient capability using proprietary high-speed proportioning valve

Delay volume 800 – 1100 µl, dependent on back pressure

Composition Range 0 – 95% or 5 – 100%, user selectable
Composition Precision < 0.2% SD, at 0.2 and 1 ml/min
Dimensions (H x W x D) 5.5 x 13.5 x 17 in
Electrical Requirements 100-120 or 22-240 VAC, 50/60 Hz, 220 VA

Agilent 1100 G1311A Gradient Pump

Agilent 1100 G1311A Gradient Pump

Refurbished instruments information
If you find a product which is of interest for your lab, please ask for more information and
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making a trip to the Uppsala-Stockholm region in Sweden, please pay us a visit and investigate our stock
of instruments yourself!
Knivsta is situated just between Uppsala and Arlanda airport, 15 minutes by car to either
and 30 – 40 minutes by car from Stockholm.

Instrument condition:
All refurbished instruments and complete analytical systems from Elsichrom are thoroughly tested
in our own lab before delivery. All functions are tested to specifications and printed test results
are enclosed. As an extra safety precaution you as a customer get 3 months function warranty.

Within Scandinavia with DPD in boxes or on pallet, depending on size of shipment.
International shipping is done via truck, air freight or DPD, whichever is most convenient
for the customer. In connection with an order, we will send you a shipping cost quotation
before any delivery takes place.

Delivery time:
Normally 5 – 10 days depending on size of order.
Payment terms:
Order can be paid directly via internet transfer to Elsichrom. All details can be found on
the proforma invoice. Shipment is done immediately after prepayment.


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