User Manual of CIC-D100 Ion Chromatograph
11
2 Instrument Components
2.1 Infusion pump
The infusion pump equipped for this instrument is an intelligent high-pressure
constant-current infusion pump with a built-in micro flow pressure sensor to monitor the flow in
real time; it has intelligent pressure limiting function to effectively protect chromatographic
columns; it is matched with the latest pulse decrement technology, providing high stability and
low pulsation to meet various applications of ion chromatography; it has a chemically inert
non-metallic undamped pump head connecting to a full PEEK pipeline. It is suitable for eluent
with a pH of 0 to 14 and reverse-phase organic solvent; it has high stability and repeatability; its
built-in chip can adjust the flow stability according to the pressure change. It has the functions of
overpressure automatic alarm, self-stop of pump and self-protection. The pressure setting can be
performed on the reverse control software.
2.1.1 Pressure sensor
The pump head conveys the eluent through a pressure sensor which detects the pressure of
the system flow path in real time. Observe whether the system pressure is stable and accurate
through the value displayed on the pump screen. The system pressure should be kept consistent
(the difference between early reading and later reading should be less than 0.5MPa).
2.1.2 Exhaust valve
When the system needs to exhaust, turn the exhaust valve counterclockwise for 1 turn to
open the exhaust valve. After the exhaust valve is opened, the eluent in the flow path will flow
here and be discharged. When the gas entering the pump is to be exhausted, the exhaust valve
can be opened. Use the exhaust needle tube to extract the gas. After the exhaust, tighten the
exhaust valve clockwise.
