Versions; Connection Configurations - Honeywell S1 Instruction Manual

Honeywell

2.3 Versions

The ENCODER is available in two different mechanical versions, S1 and
S1D:
TRZ with ENCODER S1
Fig. 1 | ENCODER S1 and ENCODER S1D
The ENCODER is available with the following communications protocols:
 NAMUR (Ex Zone 1 or 2)
Unidirectional serial interface for direct connection to volume
conversion devices and data loggers (levels comply with EN 60947-5-5).
 SCR+ (Ex Zone 1 or 2)
Low power interface, widely used for water meters, uses a protocol which
complies with IEC 62056-21 (formerly IEC 1107). The SCR interface can
be made compatible with the CL interface using a small separate,
external circuit.
 M-Bus (without explosion protection)
For correcting multiple meters to an electronic evaluation system, e.g. in
industry or in a residential environment.

2.4 Connection configurations

 Use only a screened cable to connect the encoder and ensure that the
pin assignment is correct (see Fig. 2 and sticker next to the cover of the
terminal box).
 Only connect one conductor per terminal.
 The maximum wire cross-section is 2.5 mm².
 Wire end ferrules must be used for flexible cables.
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RABO with ENCODER S1D
73024510a © Elster GmbH | All rights reserved. Subject to modification