Model Designations and Specifications UMSITRPDS3-1
November 2005
9-22
Device type:
Pressure Differential pressure
7MF4033 7MF4433 / 7MF4533
Measurement error (limit point setting, including
hysteresis and repetitive accuracy)
linear characteristic
r ≤ 10
≤ 0.1 %
10 < r ≤ 30
≤ 0.2 %
30 < r ≤100
≤ (0.005 · r + 0.05) %
Square root characteristic
Flow > 50%
≤ 0.1 % at r ≤ 10
≤ 0.2 % at 10 < r ≤ 30
Flow 25 to 50%
≤ 0.2 % at r ≤ 10
≤ 0.4 % at 10 < r ≤ 30
Repetitive accuracy Contained in measuring error
Hysteresis Contained in measuring error
Transient time (T
63
, without electrical damping) About 0.2 s
About 0.2 s, about 0.3 s with
8 and 24 inH
2
O meas. cell
Long-term drift over 12 months
≤ ( 0.1 · r) %
8 inH
2
O meas. cell:
≤ ( 0.2 · r) %
Influence of ambient temperature
at -10 to +60 °C
≤ (0.1 · r + 0.2) %
1)
1)
double value with 8 inH
2
O
measuring cell
at -40 to -10 °C and +60 to +85 °C
≤
(0.1 · r + 0.15) % / 10 K
1)
1)
double value with 8 inH
2
O
measuring cell
Influence of static pressure
on zero
≤ (0.15 · r) % per 1450 psi
8 inH
2
O meas. cell
≤ (0.15 · r) % per 464 psi
on the span
≤ 0.2% per 1450 psi
8 inH
2
O meas. cell
≤ 0.2% per 464 psi
Influence of installation position
≤ 0.2 inH
2
O per 10° angle ≤ 0.28 inH
2
O per 10° angle
Influence of power supply 0.005 % per 1V change in voltage
Operating conditions
Installation conditions
Installation note
Process connection vertically
downwards
Any
mbient conditions
Ambient temperature (in hazardous
zones note temperature class) measuring cell
- Measuring cell with silicon oil fill. -40 to +85 °C (-40 to +185°F)
Span 435 psi at PN 6174 psi -20 to +85 °C (-4 to +185°F)
- Meas. cell with inert filling liquid -20 to +85 °C (-4 to +185°F)
- Digital display -50 to +85 °C(-58 to +185°F)
Ambient temperature limit see ambient temperature
Storage temperature -30 to +85 °C (-22 to +185°F)
Climate class
- Condensation Permissible
Degree of protection (EN 60 529) IP 65
EMC
- Spurious emission EN 50 081-1
- Interference resistance EN 50 082-2 and NAMUR NE 21
Process conditions
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