Sens SG-A1, User Manual

Page: 18 / 100

SENS.413347.015RE
18
Failure description Cause Actions
(programming)
Unknown Please consult service department
of the Manufacturer
List of possible personnel (user) mistakes causing emergency operation mode of
equipment and actions to prevent specified mistakes are given in table 8.2.
Table 8.2.
Mistake description,
personnel actions
Possible consequences Actions
Incorrect attachment of
cover or cable entry, or
incorrect assembly (or
missing) of cable entry
parts of gas detector. Required level of explosion
protection is not provided.
Inflammation and medium
explosion in explosive area
is possible.
Disconnect power supply and
solve non-conformity.
Ingress of water into cavity of
cable entry or housing.
Failure of device and
automation system provided
by it, for example, forced
ventilation system. As a
result, initiation of explosive
atmosphere, ignition,
explosion and fire are
possible. 1. In case of early detection: turn
off gas detector power supply,
dry cavity of cable entry to the
complete removal of moisture.
2. In case of late detection
(imitation of corrosion, presence
of water on clamps, changing
structure of parts material
surface), gas detector has to be
repaired by Manufacturer.
8.4.2 Operation of gas detector via digital interface of SENS line (SENS protocol).
8.4.2.1 General information
Operation of gas detector is performed mainly using multi-channel signaling devices MS-
K-500-3 or PC with the use of adapters LIN-RS232, LIN-USB and corresponding software.
Detailed description of MS-K-500-3 signaling device operation procedure is given in its
user manual.
Gas detector operation via PC is provided by "ARM SI SENS" program, and configuration
program is "Configuration of sensors and secondary devices". Detailed description of
operation procedure using a PC and software is given in the corresponding user manuals.
Following instruction is operation procedure using multi-channel signaling device MS-K-
500-3.
Gas detector operation is performed by buttons of MS-K-500-3 signaling device;
corresponding information is displayed on the instrument indication board. During operation,
short-press (duration less than 1 second) and long-press of buttons are distinguished.
In operation mode during viewing of parameters, transition from one parameter to
another is performed by short-press of right-button of MS-K-500-3 signaling device, and
transition to viewing of parameters of the next SI SENS device is performed by short- or long-
press of the left button.