Siemens ADVIA 2400 - Install the new probe

Maintenance 149
1. Remove the black wire (7) from the post coming from the probe (1), but leave the
other blue wire attached.
2. Gently lift the probe (
1) up through the probe guide (6), then carefully remove it from
the probe arm (
9).
3. Discard the old probe.
Install the new probe
1. Carefully insert the new probe (1) into the probe guide (6).
2. Lower the probe fully into the guide so that the rear tube fitting rests in the joint
holder (
11).
3. While holding down the rear tube fitting, tighten the locking screw at the joint holder
(
11).
4. Carefully close each spring clip (
2) over the probe.
CAUTION
Do not allow the clips to snap on the probe shaft, to avoid damaging the probe.
5. Reconnect the black wire (
7) under the wire lock screw (8) and tighten the screw.
To prevent damaging the wire, avoid flexing the wire more than necessary.
CAUTION
If the screw does not fully tighten, or the standoff spins, tighten the screw on the
probe arm base until the standoff no longer spins; otherwise the liquid-level-sensing
capability may be adversely affected.
6. Reconnect the orange probe and preamp wires to the post (
10).
7. Carefully flex the tubing (
5) and slip the flared end into the probe joint holder (11).
8. Slide the knurled nut of the joint connector (
4) into the joint holder (11) and carefully
tighten until snug.
CAUTION
Do not cross thread or force the joint connector in too far, to avoid damaging the
threads or introducing leaks or air bubbles.
9. Replace the probe arm cover and tighten the 2 probe cover screws.
10. Lift up the probe arm (9) to the end of its travel, then manually lift and rotate the
probe over the probe wash cup but not within the wash port.
11. Put the system in Operating mode.