Ie i – Heidolph Pump Heads User Manual

Page 50

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Select "clockwise" rotation before energizing pump !

CAUTION ! Contusion hazard

-

Tube thickness is adjusted with knurled

knob (27). Turn to "+" increase clearance

(thick wall tube) or "-" to decrease

clearance (thin wall tube).

-

Best setting is reached when tube is

squeezed over about 80 % of its wall

thickness. At this point, the fluid filled

tube is squeezed by the rollers as to

allow feeding; the same time no fluid may

drain from the tube at standstill.

-

Install cover (21) and clamp lever (20);

hold both tube ends tight while tightening

knurled nut (23).

-

For easy adjustment of different sizes of

tube wall thicknesses use enclosed

auxillary tool for radial hole on knurled

screw (27). After adjustment tighten

screw (44) to secure knurled screw.

-

Pulling tube ends over the rollers (25) will make sure both rollers (25) are centered over the

tube (17) which is an essential requirement for proper feeding action and standstill sealing.

-

Do a short test run to verify setting. Repeat setting and test run on condition.

-

Before energizing the pump, close cover (21);

Contusion HAZARD !

-

Depress lever (43) to uninstall rotor by pulling;

refer to arrow mark for this action.

3.6. U

and 1.7) (fig. 28)

se of small inner diameter tubing (size 0.8

-

S

supplied with the SP vario and SP standard pump

heads; the are used to improve clamping action.

hort lengths of 0.8 and 1,7 mm tubes are

-

To this end slip these short tubes (28) over your

pummp tube (17) and install tube (17) with

short tubes (28) in pump head so that these

short tubes are located under the clamp. To

go ahead from this point, refer to "install

tube" chapter.

4.

Install multi-channel pump head

4.1. Install multi-channel adaptor on pump

drive (fig. 29)

Normally, the multi-channel adaptor comes

installed on the pump drive. If a multi-channel

fig. 28

28

17

fig. 29

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51

52

fig. 27

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