74 OI/266/HART-EN Rev. D
| 2600T Series Pressure transmitters
266 Models - HART
In case the tests would fail the transmitter will drive the output to the alarm values. In this case a correction action consists in the
re-calibration of the D/A converter. In case the normal functionality will be not re-established, the transmitter shall be considered
failed and not possible to use.
Safety-related parameters
The Safety 266 pressure transmitters product meets the SIL2 requirements of IEC 61508 in low as well as high demand mode of
operation. The total PFD in low demand mode for 10 years proof test interval in the worst case is less than the 15% of the range
defined in IEC 61508-1. The relevant numbers are stated in the table below:
266DXX, 266VXX,
266PXX, 266HXX,
266NXX
266MXX, 266CXX,
266JXX, 266RXX
(range R)
266MXX, 266CXX,
266JXX, 266RXX
(except range R)
266GXX, 266AXX
(except range C and F)
266GXX, 266AXX
(only range C and F)
λ
dd
2,62E-07
3,50E-07
3,94E-07
4,05E-07
4,13E-07
λ
du
6,82E-08
4,10E-08
6,85E-08
6,85E-08
6,90E-08
λ
sd
3,37E-07
1,50E-08
2,39E-07
2,40E-07
2,40E-07
λ
su
3,01E-07
1,42E-07
3,53E-07
3,42E-07
3,18E-07
HFT
-
-
-
-
-
T1
1 year / 10 years (8760h / 87600h)
SFF
92,95%
93,63%
93,51%
93,51%
93,37%
Total Failure Rate
9,68E-07
1,08E-06
1,06E-06
1,06E-06
1,04E-06
MTBF
118
106
108
108
110
MTTR
8 hours
DC
D: 79%
D: 86%
D: 85%
D: 86%
D: 86%
C: 53%
C: 41%
C: 40%
C: 41%
C: 43%
PFD (1 year)
2,99E-04
3,01E-04
3,00E-04
3,00E-04
3,02E-04
PFH (1 year)
6,82E-08
6,87E-08
6,85E-08
6,85E-08
6,90E-08
PFD (10 years)
2,98E-03
3,00E-03
2,99E-03
2,99E-03
3,01E-03
PFH (10 years)
6,82E-08
6,87E-08
6,85E-08
6,85E-08
6,90E-08
Testing time
< 20 s
< 20 s
< 20 s
< 5 s
< 70 s
ROM check time
< 30 s
< 30 s
< 30 s
< 30 s
< 70 s
Summary of Contents for 266 HART Series
Page 40: ...40 OI 266 HART EN Rev D 2600T Series Pressure transmitters 266 Models HART Device Set up ...
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Page 42: ...42 OI 266 HART EN Rev D 2600T Series Pressure transmitters 266 Models HART ...
Page 43: ...2600T Series Pressure transmitters OI 266 HART EN Rev D 43 ...
Page 44: ...44 OI 266 HART EN Rev D 2600T Series Pressure transmitters 266 Models HART Display ...
Page 45: ...2600T Series Pressure transmitters OI 266 HART EN Rev D 45 ...
Page 46: ...46 OI 266 HART EN Rev D 2600T Series Pressure transmitters 266 Models HART ...
Page 48: ...48 OI 266 HART EN Rev D 2600T Series Pressure transmitters 266 Models HART Calibrate ...
Page 49: ...2600T Series Pressure transmitters OI 266 HART EN Rev D 49 Totalizer ...
Page 50: ...50 OI 266 HART EN Rev D 2600T Series Pressure transmitters 266 Models HART ...
Page 51: ...2600T Series Pressure transmitters OI 266 HART EN Rev D 51 ...
Page 52: ...52 OI 266 HART EN Rev D 2600T Series Pressure transmitters 266 Models HART Diagnostics ...
Page 53: ...2600T Series Pressure transmitters OI 266 HART EN Rev D 53 Device Info ...
Page 54: ...54 OI 266 HART EN Rev D 2600T Series Pressure transmitters 266 Models HART Communication ...
Page 77: ...2600T Series Pressure transmitters OI 266 HART EN Rev D 77 ...
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Page 79: ...2600T Series Pressure transmitters OI 266 HART EN Rev D 79 ...