[labnetwork] Honeywell MST Sensors

[Dennis Schweiger]

Hadi,

We moved away from the MST sensors years ago as we didn't like the fact
that they weren't extractive, and at the same time we moved away from the
LonWorks operating system to a PLC based system.  We're now using an
extractive tape (Vertex) and extractive electrochemical (Midas) sensors
(both from Honeywell), and we've had the same procurement issues you're
seeing on the MST sensors with our Midas sensors.  We just had a delivery
of our LEL sensors pushed out from 30 days to 60 days, and though it's not
as big as the delay you're seeing, it's definitely not what we
were expecting, or had experienced earlier.

As others have already mentioned, any of the alternative solutions come
with their own drawbacks in timing, reliability, and implementation cost.
Until our supply chain issues start to clear up, I believe this is going to
be the new normal...

Dennis Schweiger
Facilities Supervisor
University of Michigan/LNF

734.647.2055 Ofc


On Tue, Jun 14, 2022 at 5:03 PM Hadi Esmaeilsabzali <
hadi_esmaeilsabzali at sfu.ca> wrote:

> Dear Colleagues,
>
>
> Another supply chain story here. Honeywell has informed us that the MST
> sensors that we had ordered in April 2021 and were supposed to be delivered
> earlier in March of this year won't be ready until early 2023. All our
> gas sensors (NH3, Cl2, SiH4, HCl) are due for replacement, and we are
> currently concerned about the risk of running possibly expired sensors. Anyone
> facing the same issue? Are there other reliable suppliers we can purchase
> these sensors from? Any advice is appreciated!
>
>
> Hadi
>
>
> *Hadi Esmaeilsabzali, PhD*
>
> Nanofabrication Group Manager, 4D LABS
>
> Simon Fraser University
>
> 8888 University Dr., Burnaby, B.C. V5A 1S6
> T: 778.782.3790 | F: 778.782.3765 | www.4dlabs.ca
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