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1.
Introduction
This operator’s manual contains information needed to install, operate, perform user maintenance, and service the Dual Head
High-Performance Constant Pressure Digital HPLC Pump.
1.1
Description of the Dual Head Pump
The Dual Head High-Performance Constant Pressure Pump is designed to be a reliable component for use whereever a constant
pressure must be maintained.
1.1.1
Dual Head Pump Features
• Prime purge valve.
• Autoprime? one button toggles flowrate to maximum for rapid solvent change.
• Inlet and outlet check valves assure reliability.
• 316 stainless steel pump heads.
• Outlet filter.
• Front panel pressure adjustment in 10 psi increments .
• Microprocessor advanced control.
• Tactile response, chemical-resistant front panel keypad.
• Chemical-resistant LED digital display—shows the flow rate and pressure limits.
* Digital stepper motor design prevents flowrate drift over time and temperature, which is a common
problem in analog designs.
* Back panel RS232 serial communications port for complete control and status monitoring.
1.1.2
Wetted Materials
Pump heads, check valve bodies, and tubing are made of type 316 stainless steel. Other materials are synthetic ruby and sapphire
(check valve internals and piston) and fluorocarbon damper (diaphragm).
1.2
Specifications for the Dual Head Pump
Flow Rates
00.00 to 12.00 mL/min (6mL heads)
00.00 to 24.00 mL/min (12mL heads)
Pressure
0 to 9990 psi (without pulse damper)
0 to 6000 psi (with pulse damper)
Pressure Accuracy
±1% of full-scale pressure
Pressure Zero Offset
–0.2 psi
Pressure Control Accuracy
<10% or 100 psi whichever is larger
Dimensions
5.5” high x 10.375” wide x 17.5” deep
Weight
30 lb
Power
100–240 VAC, 50–60 Hz, 45W (main voltage supply not to exceed ±10%)
Environmental
Indoor use only
Altitude Maximum
2000 M
Temperature
10–30° C
Relative Humidity
20–90%
Remote Inputs
RS232
2.
Installation
2.1
Unpacking and Inspection
Prior to opening the shipping container, inspect it for damage or evidence of mishandling. If it has been damaged or mishandled,
notify the carrier before opening the container. Once the container is opened, inspect the contents for damage. Report any dam-
age to the carrier immediately. Save the shipping container. Check the contents against the packing list.
2.2
Location/Environment
The preferred environment for the dual head pump is normal laboratory conditions. The area should be clean and have a stable
temperature and humidity. The instrument should be located on a stable flat surface with surrounding space for ventilation and
the necessary electrical and fluid connections. (Reference IEC 1010 installation category II, and pollution degree 2 environment)
2.3
Electrical Connections
Unpack the dual head pump; position the pump there so that is at least a four inch clearance on all sides to permit proper ventila-
tion. Using the power cord supplied with the pump, or equivalent, plug the pump into a properly grounded electrical outlet.
WARNING:
Do not bypass the safety ground connection as a serious shock hazard could result.
