Michell Instruments Easidew PRO I.S., Руководство пользователя

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Easidew PRO I.S. User’s Manual
Michell Instruments 11
MAINTENANCE
4 MAINTENANCE
Calibration
Routine maintenance of the Easidew I.S. is con fi ned to regular re-calibration by
exposure of the transmitter to sample gases of known moisture content to ensure that
the stated accuracy is maintained. Calibration services traceable to the UK National
Physical Laboratory (NPL) and the US National Institute of Standards and Technology
(NIST) are provided by Michell Instruments.
Michell Instruments offers a re-calibration service to suit speci fi c needs. A Michell
representative can provide detailed, custom advice (for Michell Instruments’ contact
information go to www.michell.com).
Sensor Guard Replacement
The sensor is supplied with a stainless steel sintered guard.
The stainless steel guard provides <80 μ m protection to the dew-point sensor. It is
designed to show any contamination and the guard should be changed if the surface
becomes discolored.
When replacing the guard, care should be taken to handle the guard by the bottom part
only. A replacement guard (SSG) can be obtained by contacting Michell Instruments
(www.michell.com) or your local distributor.
x
HANDLE,
USING
GLOVES, BY
GREY PART
ONLY
Easide
w
Pr
ocess De
wpoi
nt
Figure 10 Replacement of Sensor Guard
Bonded Seal
If the installed bonded seal gets damaged or lost, a pack of 5 replacement bonded seals
can be obtained by contacting Michell Instruments, or your local distributor, and quoting
part number 5/8-BS.