General Information
2
GA09420_002_C0 – (2016-10) –
Leybold
Product Identification
In all communications with Leybold, please specify the information on the product
nameplate. For convenient reference copy that information into the space provided
below.
Validity
This document applies to products with the following part numbers:
ITR 90 (without display)
120 90
(vacuum connection DN 25 ISO-KF)
120 92 (vacuum connection DN 40 CF-R)
ITR 90 (with display)
120 91
(vacuum connection DN 25 ISO-KF)
120 94
(vacuum connection DN 40 CF-R)
ITR 90 P (with Profibus interface and switching functions)
230030 (vacuum connection DN 25 ISO-KF)
230031
(vacuum connection DN 40 CF-R)
The part number (No.) can be taken from the product nameplate.
If not indicated otherwise in the legends, the illustrations in this docu-
ment correspond to the KF vacuum connection. They apply to other
vacuum connections by analogy.
All ITR 90 versions are shipped with an instruction sheet (→ [1]). ITR 90 P
comes with a supplementary instruction sheet describing the fieldbus interfaces
and the switching functions (→ [2]).
We reserve the right to make technical changes without prior notice.
All dimensions in mm.
Intended Use
The ITR 90 transmitters have been designed for vacuum measurement of gases
and gas mixtures in a pressure range of 5×10
-10
… 1000 mbar.
They must not be used for measuring flammable or combustible gases in mixtures
containing oxidants (e.g. atmospheric oxygen) within the explosion range.
The transmitters can be operated in connection with a Leybold controller or with
other control devices.
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