Gilson 223 - Liquid Level Detector; Diverting Valve

223 Sample Changer User’s Guide 2-11
Installation 2
Accessory Installation
Liquid Level Detector
The liquid level detector detects when the probe has reached the liquid surface. This
permits the program controlling the sample changer to calculate the change in the
liquid level so the tip of the probe remains a predetermined distance below the
liquid’s surface.
To install the liquid level detector cable:
1 Remove the probe retaining screw from the probe holder.
2 Slide the ring contact of the liquid level detector cable into the slot provided on
the probe holder.
3 Secure the probe retaining screw.
4 Plug the end of the cable into the coaxial socket.
Disconnect LLD Cable
To disconnect the cable from the front face of the sample changer, you need to pull
the collar on the connector towards you before you can detach the connector.
Diverting Valve
To install the diverting valve:
1 Turn off power to the sample changer and, if installed, its dilutor.
2 If installed, disconnect the dilutor’s transfer tubing from the probe.
3 Locate the larger tubing/cable clip supplied with the diverting valve. Attach
the clip to the left of the vertical arm, in the center of the horizontal arm.
4 Locate the smaller tubing/cable clip. Attach the clip to the back of the vertical
arm (the side that faces the rear panel of the sample changer); position the
clip approximately 1/3 of the distance from the top of the vertical arm to its
bottom.
5 Remove the protective covers from the bolts located on the left side of the
vertical arm.
6 Attach the valve to the left side of the vertical arm by inserting the mounting
bolts through the two holes on the valve’s mounting bracket. Secure the valve
using the two self-locking nuts. When placing the nuts onto the bolts, the
plastic side faces outward. Use a 5/16" wrench to tighten the nuts.
7 Snap the diverting valve’s cable into the tubing/cable clip attached to the
horizontal arm. Then connect the cable to its connector on the front face of
the sample changer.
8 Since the top port of the diverting valve is the common port, attach one end
of the supplied tubing to the top port and the other end to the probe. Snap
the tubing into the tubing/cable clip attached to the back of the vertical arm.
If necessary, lower the probe so you can route the tubing through the clip.
9 Attach the transfer tubing from each dilutor to the side ports.