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1 About this manual
1.1 Validity
This document describes the function of the products listed in the following and provides the most im-
portant information for safe use. The description is written in accordance with the valid directives. The
information in this document refers to the current development status of the products. The document
retains its validity assuming that the customer does not make any changes to the product.
1.1.1 Applicable documents
Designation
Brief instructions "Pirani gauge"
TPR 280 ∣ TPR 281
Operating instructions "Total pressure measuring and control unit"
TPG 361 | TPG 362
Operating instructions "Total pressure measuring and control unit"
TPG 366
Declaration of conformity
Tbl. 1:
The scope of delivery includes the brief instructions for the gauge.
You can find these documents in the
1.1.2 Variants
This document applies to products with the following part numbers:
Part number
PT R26 950
PT R26 960
PT R26 951
PT R26 961
PT R26 952
PT R26 953
Tbl. 2:
Part number
PT R21 950
PT R21 960
PT R21 951
PT R21 961
Tbl. 3:
You can find the part number on the rating plate of the product.
Pfeiffer Vacuum reserves the right to make technical changes without prior notification.
Information that relates to only one of the products is indicated accordingly.
IMPORTANT
Read carefully before use.
Keep the manual for future consultation.
Applicable documents
Designation
TPR 280 (DN 16 ISO-KF, short version)
TPR 280 (DN 16 ISO-KF, long version)
TPR 280 (DN 16 CF-R, short version)
TPR 280 (DN 16 CF-R, long version)
TPR 280 (1/8" NPT, short version)
TPR 280 (8 VCR (1/2"), short version)
Variants TPR 280
Designation
TPR 281 (DN 16 ISO-KF, short version)
TPR 281 (DN 16 ISO-KF, long version)
TPR 281 (DN 16 CF-R, short version)
TPR 281 (DN 16 CF-R, long version)
Variants TPR 281
Pfeiffer Vacuum Download
About this manual
Document
BG 5178
BG 5500
BG 5501
(Component of these instruc-
tions)
Center.
7/42
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