ABB LLT100 - Page 58

54 User Guide | OI-LLT100-EN Rev. D
LLT100
Laser level transmitter
Tube model Ambient temperature
(
°
C
)
Air flow needed?
(
minimum recommended flow, if needed
)
Air pressure at cooling tube
air inlet*
P920 20 30 40 50
Max. process temperature
(
°
C
)
205 155 110 65 No –
300 225 150 75 Yes
(
1 scfm
)
0.50 psi
(
0.05 bar
)
280 185 85 Yes
(
2 scfm
)
1 psi
(
0.075 bar
)
350
230 105 Yes
(
3 scfm
)
2.5 psi
(
0.2 bar
)
305 130 Yes
(
4 scfm
)
5 psi
(
0.35 bar
)
165 Yes
(
5 scfm
)
8.5 psi
(
0.6 bar
)
Tube model Ambient temperature
(
°
C
)
Air flow needed?
(minimum recommended flow, if needed)
Air pressure at cooling tube
air inlet*
P921 20 30 40 50
Max. process temperature (
°
C
)
175 85 No –
150 Yes
(
1 scfm
)
0.50 psi
(
0.05 bar
)
180
Yes
(
2 scfm
)
1.25 psi
(
0.1 bar
)
Yes
(
3 scfm
)
2.75 psi
(
0.2 bar
)
Yes
(
4 scfm
)
6.25 psi
(
0.45 bar
)
Tube model Ambient temperature
(
°
C
)
Air flow needed?
(
minimum recommended flow, if needed
)
Air pressure at cooling tube
air inlet*
P922,
P923, P924
20 30 40 50
Max. process temperature. (
°
C
)
200 90 No –
155 Yes
(
1 scfm
)
0.50 psi
(
0.05 bar
)
280
200 Yes
(
2 scfm
)
1.25 psi
(
0.1 bar
)
270 Yes
(
3 scfm
)
2.75 psi
(
0.2 bar
)
Yes
(
4 scfm
)
6.25 psi
(
0.45 bar
)