Siemens SITRANS P DS III Operating Instructions Manual page 190

Technical data
11.5 Operating conditions
Level measuring accuracy
Long-term drift at ±30 °C (±54 °F)
Effect of ambient temperature
At -10 ... +60°C (14 ... 140°F)
•
(0.4 instead of 0.2 at 10 < r ≤ 30)
Measuring cell
250 mbar (3.63 psi)
Measuring cell
600 mbar (8.7 psi)
Measuring cell 1.6 and 5 bar
(23.2 and 72.5 psi)
At -40 ... -10°C and
•
+60 ... +85°C
(-40 ... 14°F and 140 ... 185°F)
(double values for 10 < r ≤ 30)
Measuring cell
250 mbar (3.63 psi)
Measuring cell
600 mbar (8.7 psi)
Measuring cell 1.6 and 5 bar
(23.2 and 72.5 psi)
Effect of static pressure
At the start of scale value
•
Measuring cell 250 mbar
(0.29 psi)
Measuring cell
600 mbar (8.7 psi)
Measuring cell 1.6 and 5 bar
(23.2 and 72.5 psi)
On the measuring span
•
Effect of mounting position
Effect of auxiliary power supply
Measured-value resolution
190
HART
≤ (0.25 • r) % per five years
static pressure max. 70 bar g
(1015 psi g)
As percentage
≤ (0.5 • r + 0.2) %
≤ (0.3 • r + 0.2) %
≤ (0.25 • r + 0.2) %
≤ (0.25 • r + 0.15) %/10 K
(≤ (0.25 • r + 0.15) %/18°F)
≤ (0.15 • r + 0.15) %/10 K
(≤ (0.15 • r + 0.15) %/18 °F)
≤ (0.12 • r + 0.15) %/10 K
(≤ (0.12 • r + 0.15) %/18°F)
≤ (0.3 • r) % per nominal pressure
≤ (0.15 • r) % per nominal pressure
≤ (0.1 • r) % per nominal pressure
≤ (0.1 • r) % per nominal pressure
depending on the fill fluid in the mounting flange
In percent per change in voltage
0.005 % per 1 V
–
PROFIBUS PA and FOUNDATION
Fieldbus
≤ 0.25 % per five years
static pressure max. 70 bar g
(1015 psi g)
≤ 0.7%
≤ 0.5%
≤ 0.45%
≤ 0.4 %/10 K (≤ 0.4 %/18°F)
≤ 0.3 %/10 K (≤ 0.3 %/18°F)
≤ 0.27 %/10 K (≤ 0.27 %/18°F)
≤ 0.3 % per nominal pressure
≤ 0.15 % per nominal pressure
≤ 0.1 % per nominal pressure
≤ 0.1 % per nominal pressure
3 • 10 of the rated measuring range
-5
SITRANS P DS III with HART
Operating Instructions, 06/2013, A5E00047092-09