Reference Manual
00809-0100-4793, Rev CA
August 2004
Rosemount 8742C
A-4
Performance
Specifications
(System specifications are given using the unit at referenced conditions.)
Accuracy
Rosemount 8742C Transmitter with
8705 and 8721 Flowtubes
System accuracy is ±0.5% of rate from 1 to 40 ft/s (0.3 to 12 m/s);
includes combined effects of linearity, hysteresis, repeatability, and
calibration uncertainty; below 1.0 ft/s (0.3 m/s), the system has an
accuracy of ±0.005 ft/s (0.0015 m/s).
Rosemount 8742C Transmitter with 8711 Flowtube
System accuracy is ±0.5% of rate from 3 to 40 ft/s (0.9 to 12 m/s);
includes combined effects of linearity, hysteresis, repeatability, and
calibration uncertainty; below 3 ft/s (0.9 m/s), the system has an accuracy
of ±0.015 ft/s (0.005 m/s).
Vibration Effect
IEC 60770-1
Repeatability
±0.1% of reading
Response Time
0.2 seconds maximum response to step change in input
Stability
±0.1% of rate over six months
Ambient Temperature Effect
±0.25% of rate over operating temperature range
EMC Compliance
EN61326-1 1997 + A1/A2 3(Industrial) electromagnetic compatibility (EMC)
for process and laboratory apparatus.
Transient Protection
The 8742C transmitter prevents damage to the flowmeter from transients
compliant to:
IEC 6100 – 4-4 (for burst currents)
IEC 6100 – 4-5 (for surge currents)
Mounting Position Effect
None when installed to ensure flowtube remains full
Содержание 8700 Series
Страница 2: ......
Страница 4: ......
Страница 12: ...Reference Manual 00809 0100 4793 Rev CA August 2004 1 4 Rosemount 8742C ...
Страница 64: ...Reference Manual 00809 0100 4793 Rev CA August 2004 5 12 Rosemount 8742C ...
Страница 102: ...Reference Manual 00809 0100 4793 Rev CA August 2004 Rosemount 8742C A 32 ...
Страница 116: ...Reference Manual 00809 0100 4793 Rev CA August 2004 Rosemount 8742C B 14 ...
Страница 135: ......