Atest Gaz Sigma SmArt, User Manual

Page: 3 / 84

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Comments and objections
Connection and operation of the detector is allowed only upon having read and understood the
contents of this document. Keep User's Manual with the device for future use.
The manufacturer shall not be liable for any errors, damage and malfunctions caused by improper
selection of equipment, faulty installation, or the lack of understanding of this document.
It is not allowed to perform any repairs or alterations on the device independently. The
manufacturer shall not be liable for the consequences caused by such interference.
Too much exposure to mechanical, electrical and environmental impacts could damage the device.
It is not allowed to use damaged or incomplete equipment.
The design of the gas detection system for a protected facility may involve other requirements
throughout all stages of the product life.
It is unacceptable to use parts other than those listed in table 9.
The chosen model of a gas detector can be used in Zone 1 and 2 hazardous areas only after the
fulfilment of all the conditions listed below. Failure to meet any of these conditions may result in
the machine becoming a source of danger. In parallel, the manufacturer reserves the right to void
the warranty on the device handled incorrectly.
The user should familiarize themselves with applicable legislation at the given moment, especially
with the rules for the operation of electrical installations in hazardous areas.
Performing the electrical connections in hazardous areas is allowed only for persons having the
necessary knowledge, experience and authority in the performance of electrical installations in
hazardous areas.
All works should be carried out after finding a lack of gas hazards at the installation site.
Before opening the housing of the device, it is necessary to:
• disconnect all power sources from the unit,
• note the correct loosening of the locking screws M3, so that when unscrewing the transmitter
cover and head cover the bolt would not damage the threads (see figure 2),
When assembling the housing and preparing the device into operation:
• check whether the device is complete and whether there is any damage to mechanical
components,
• properly assemble all the elements of the sensor,
• tighten the M3 locking screws on the transmitter cover and the head cover (see figure 2),
• pay attention to the cable inlet completely tightened around the wire,
• make sure the device is connected to the protective circuit (see section 6.2.2.3).
Make sure that the device protection feature corresponds to the environmental conditions, and in
particular (see the nameplate of the device):
• the category corresponds to the designated area,
• the expected ambient temperature is in the Ta range declared by the manufacturer,
• gases that may appear belong to the temperature class declared by the manufacturer.
The recommended operating position of the detector is the position of head down. Other
positions can significantly compromise the level of IP of the device.
p. 3|34
User's Manual: POD-009-ENG R07