Emerson Rosemount 936, Reference Manual

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2 Technical description
2.1 Features
• Long range gas detection from 17 ft. (5 m) up to 200 ft. (60 m)
• High sensitivity and fast response to toxic gases
• Heated optics to improve performance in icing, condensation, and snow conditions
• Continuous operation in extreme and harsh environmental conditions
• Solar blind and immune to industrial environments
• Withstands extreme vibration conditions
• Standard 0-20 mA output
• Maintenance call (3 mA)
• HART
®
protocol: communication protocol
• RS-485 output Modbus
®
-compatible for personal computer (PC) communication
network for a maximum of 247 systems
• Simple one person installation, alignment, and calibration
• ATEX and IECEx per
Ex II 2(2) G D
Ex db eb ib [ib Gb] IIB + H
2
T4 Gb
Ex tb [ib Db] IIIC T135 °C Db
T
a
= -55 °C to 65 °C
• TR CU approved per:
1 Ex db eb ib [ib Gb] IIB + H
2
T4 Gb X
Ex tb IIIC T135 °C Db X
-55 °C ≤ T
a
≤ 65 °C
• CSA C/US approved per:
Canada
Ex db eb ib [ib Gb] IIB+H
2
T4 Gb
Ex tb [ib Db] IIIC T135 °C Db
T
a
= -55 °C to + 65 °C
USA
Class I Zone 1 AEx db eb ib [ib Gb] IIB+H
2
T4 Gb
Zone 21 AEx tbm [ib Db] IIC T135 °C Db
T
a
= -55 °C to +65 °C
• TUV approved per SIL2 requirements.
• Inmetro (UL) approved.
• Programmable configuration via the Field Communicator
Reference Manual Technical description
00809-0100-4036 October 2021
Rosemount 936 9