4 housing, 5 eluent degasser, 6 high pressure pump – Metrohm 872 Extension Module IC Pump User Manual

Page 65: Housing, Eluent degasser, High pressure pump

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8 Technical specifications

872 Extension Module IC Pump

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57

8.4

Housing

Dimensions

Width

365 mm

Height

131 mm

Depth

380 mm

Material of base
tray, housing and
bottle holder

Polyurethane hard foam (PUR) with flame retardation for fire class
UL94V0, CFC-free, coated

8.5

Eluent degasser

Material

fluoropolymer

Resistance to sol-
vents

No restriction (apart from PFC)

Build-up time for
the vacuum

< 60 s

8.6

High pressure pump

Type

Serial dual-piston pump

Intelligent pump head recognition

Chemically inert

Metal-free pump heads

Materials in contact with eluent: PEEK, ZrO

2

, PTFE/PE

Self-optimizing flow and pressure

Flow rate

Adjustable flow
range

0.001…20.0 mL/min

Flow increment

1 µL/min

Reproducibility
of the eluent
flow

< 0.1 % deviation

Pressure range

Pump

0…50.0 MPa (0…500 bar)

Pump head

0…35.0 MPa (0…350 bar) (applies for the standard PEEK pump head)

Residual pulsa-
tion

< 1 %

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