-
- Posts: 1
- Joined: Thu Jul 11, 2024 9:55 pm
- Location: United States
Environment: (1) Waters 2707 Autosampler, (2) Waters 1515 Isocratic Pump, (3) Waters 2414 RI Dector (4) All Running on Breeze2 Software
Symptoms:
(1) Initially 2707 Autosampler went offline and returned “Communication Failure” Error in 2707 Instrument Console Log, and
(2) After Closing Breeze2 software, powering down all 3 Instrument components, Powering back up all 3 instruments, and finally re-opening Breeze2 as per some recommendations for Autosampler communication errors on the Waters.com site the 2707 Autosampler still went offline but now with either “Tray home Sensor not reached” or “ Tray home Sensor not de-activated”.
Additional Details:
When powered on from hard stop the Autosampler appears to be active and in communication with the system for 7-15 seconds before the error occurs. Sensor Error appears to occur and Autosampler goes offline ~3-6 seconds after the Sample stage reaches its Home position at the back of the unit and ~1-3 seconds after the sampling needle starts its movements.
Note: 2707 manual only has 2 mentions of sensors, a “vial/well plate detection by sensor“on p. C-2 and a “temperature sensor" on page C-3 with no details other than those mentions.
Speculation:
It appears there is a Tray or a Vial/ well plate sensor error. It may be a sensor or an interlock at the rear of the sample stage. It may be a sensor towards the front of the stage as this is closer to the position where vials are sampled. There may also be a sensor tracking the position of the needle in order to facilitate the sampling of individual vials,
It also appears that the sample vial stage and needle move normally. This is a possible indication that the error may be an issue with one of the active components of the sensor system or communications between the Autosampler and/or other instruments as everything appears to move, function and operate normally.
Request:
If anyone has seen or solved this or similar issues we would appreciate your input and comments.
Also if anyone has a knowledge of the position, operation, subcomponents, or any sensing systems on the 2707 autosampler that would help us to better assess, diagnose, or address the issue we would appreciate that as well.
Thanks for any info or recommendations.