1 Introduction
Stevens A/F Encoder
1.1 GENERAL DESCRIPTION
The Stevens
®
Type A/F Encoder is an input device sensor for the primary purpose of encoding water
level or shaft position. The Encoder can be supplied in a standalone enclosure with a float pulley input
shaft, where there is no associated chart recorder (see Figure 1, page 8). Housed in a protective metal
enclosure supplied with mounting brackets for mounting directly to the input shafts of existing Stevens
Type A or Type F chart recorders. The Encoder input shaft accepts standard Stevens float pulleys for
either beaded float line or perforated tape, and would normally be installed in a gage house over a float
well. Installation of the standalone version of the Encoder is described in Section 2.1 of this manual.
Installation of Encoder Attachment is described in section 2.2 and 2.3 of the manual.
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