Endress+Hauser Deltapilot M FMB50 - Total Performance; Total Error; Thermal Change in the Zero Output and the Output Span

Deltapilot M FMB50/51/52/53
22 Endress+Hauser
Total performance The "Total performance" specification comprises the non-linearity including hysteresis, non-reproducibility as
well as the thermal change in the zero point.
Total error The total error comprises the long-term stability and the total performance:
Thermal change in the zero
output and the output span
0.4 bar (6 psi)
•TD ≤ 4:1
•TD > 4:1
•< 0.2
• < 0.05 x TD
• < 0.15
• < 0.0375 x TD
1.2 bar (18 psi)
•TD ≤ 2:1
•TD > 2:1
•< 0.2
• < 0.1 x TD
•< 0.1
• < 0.05 x TD
4 bar (60 psi)
•TD ≤ 4:1
•TD > 4:1
•< 0.2
• < 0.05 x TD
•< 0.1
• < 0.025 x TD
10 bar (150 psi)
•TD ≤ 2.5:1
• TD > 2.5:1
•< 0.2
• < 0.08 x TD
•< 0.1
• < 0.04 x TD
Reference accuracy in % of the calibrated span
Measuring cell TD "Standard" option "Platinum" option
Total performance in % of the URL
Version Measuring cell -10 to +60°C
(+14 to +140 °F)
60 to 85°C
(140 to 185 °F)
85 to 100 C
(185 to 212 °F)
FMB50
FMB51/52/53 snap-on
0.1 bar (1.5 psi) < 0.35 < 0.45 < 0.6
FMB51/52/53 welded 0.1 bar (1.5 psi) < 0.8 < 1 < 1.4
FMB50/51/52/53
0.4 bar (6 psi) < 0.35 < 0.45 < 0.6
1.2 bar (18 psi), 4 bar (60 psi),
10 bar (150 psi)
< 0.15 < 0.2 < 0.25
Measuring cell % of the URL/year (in the permitted temperature range)
0.1 bar (1.5 psi)
• Snap-on: ±0.63
•Welded: ±1.0
0.4 bar (6 psi) ±0.61
1.2 bar (18 psi) ±0.27
4 bar (60 psi), 10 bar (150 psi) ±0.25
Version Measuring cell -10 to +60°C
(-94 to +752°F)
60 to 85 °C
(+140 to +185°F)
Only FMB50:
85 to 100 °C
(+140 to +185°F)
% of the calibrated span
FMB50
FMB51/52/53 snap-on
0.1 bar (1.5 psi) < (0.32 + 0.30 x TD) < (0.34 + 0.40 x TD) < (0.34 + 0.55 x TD)
FMB51/52/53 welded 0.1 bar (1.5 psi) < (0.32 + 0.50 x TD) < (0.34 + 0.60 x TD) -
FMB50/51/52/53
0.4 bar (6 psi) < (0.31 + 0.25 x TD) < (0.32 + 0.30 x TD) -
1.2 bar (18 psi),
4 bar (60 psi),
10 bar (150 psi)
< (0.31 + 0.10 x TD) < (0.32 + 0.15 x TD) < (0.33 + 0.20 x TD)