
B
Specifications
B.1
General specifications
Detected gases: C1 - C8 selective gases
Detection distance range:
Table B-1: Model Numbers and Installation Distances
Model
number
Detector
Source
Minimum installation
distance
Maximum installation
distance
935
R1F00XXXX
T1FXXXXXX
23 ft. (7 m)
66 ft. (20 m)
935
R1F00XXXX
T2FXXXXXX
50 ft. (15 m)
132 ft. (40 m)
935
R1F00XXXX
T3FXXXXXX
115 ft. (35 m)
330 ft. (100 m)
935
R1F00XXXX
T4FXXXXXX
265 ft. (80 m)
660 ft. (200 m)
Response time:
3 sec to T90
Spectral response:
2.0 - 3.0 micron
Sensitivity range:
Full scale
LEL.m
Warning
LEL.m
Alarm
LEL.m
Gas 1
Methane
5
1
3
Gas 2
Propane
5
1
3
Gas 3
Ethylene
8
1.6
4.8
Field of view:
Line of sight
Alignment tolerance:
±0.5 °
Drift:
±7.5% of the reading or ±4% of the full scale (whichever is
greater)
Minimum detectable gas
volume:
0.15 LEL.m
Temperature range:
-67 °F (-55 °C) to 149 °F (65 °C)
Immunity to false alarm:
Does not produce false alarm and is not influenced by
solar radiation, hydrocarbon flames, and other external
infrared (IR) radiation sources.
B.2
Electrical specifications
Operating voltage
18-32 Vdc
Reference Manual
Specifications
00809-0100-4035
May 2022
Rosemount 935
57
Summary of Contents for Rosemount 935
Page 8: ...Product overview Reference Manual May 2022 00809 0100 4035 8 Emerson com Rosemount ...
Page 16: ...Technical description Reference Manual May 2022 00809 0100 4035 16 Emerson com Rosemount ...
Page 22: ...Operating modes Reference Manual May 2022 00809 0100 4035 22 Emerson com Rosemount ...
Page 46: ...Operation Reference Manual May 2022 00809 0100 4035 46 Emerson com Rosemount ...
Page 52: ...Troubleshooting Reference Manual May 2022 00809 0100 4035 52 Emerson com Rosemount ...
Page 56: ...Ordering information Reference Manual May 2022 00809 0100 4035 56 Emerson com Rosemount ...
Page 62: ...Specifications Reference Manual May 2022 00809 0100 4035 62 Emerson com Rosemount ...
Page 70: ...Wiring configurations Reference Manual May 2022 00809 0100 4035 70 Emerson com Rosemount ...
Page 74: ...Support Reference Manual May 2022 00809 0100 4035 74 Emerson com Rosemount ...