Measuring Spans And Overload Limits - Siemens 7MF4033 series User Manual

UMSITRAPDS3-1

9.4 MEASURING SPANS AND OVERLOAD LIMITS

This section provides tables that contain the measuring spans and overload limits for each series DSIII
transmitter.
Measuring Span, Continuously Adjustable
0.15
0.58
2.3
9.1
23
58
1) For oxygen measurement, maximum is 2325 psi.
TABLE 9-18 Differential Pressure and Flow Transmitters, 7MF4433 & 7MF4533
Measuring Span, Continuously Adjustable
0.4
0.4
1
2.4
6.4
4.3
1) For oxygen measurement, maximum is 2325 psi
2) Silicon measuring cell fill only
3) MWP 4568 psi with stainless steel process flange screw
4) Not suitable for remote process mounting
TABLE 9-19 Absolute Pressure, Gauge Construction, 7MF4233
Measuring Span, Continuously Adjustable
3.3
18
64
400
This measuring cell is designed for operation within the measuring limits of 0
inH O (absolute) to 100 inH
2
pressure of about of about 14.7 psi (absolute), the measuring cell is in the
overload state. An overload error of up to 0.8 inH
disappears in normal operation within the measuring limits and the transmitter
operates within specifications.
When performing accurate continuous pressure measurements within the
measuring limits, a readjustment of the transmitter zero for absolute pressure
must be performed after approximately one day (refer to Section 6.2.5).
November 2005
TABLE 9-17 Pressure Transmitter, 7MF4033
To 14.5 psi
To 60 psi
To 230 psi
To 925 psi
To 2325 psi
To 5800 psi
To 8 inH O
2
To 24 inH
2
To 100 inH
To 240 inH
To 640 inH
To 435 psi
To 100 inH O see Note
2
To 525 inH
To 2000 inH
To 12,000 inH
Note: 100 inH
O (absolute). When stored in the normal ambient
2
Model Designations and Specifications
Process Pressure Limits
Lower
-14.5 psi
-14.5 psi
-14.5 psi
-14.5 psi
-14.5 psi
1)
-14.5 psi
Maximum Working Pressure
7MF4433
4)
470 psi
O 2300 psi
O 2300 psi
2
O 2300 psi
2
O 2300 psi
2
2300 psi
Process Pressure Limit
O
2
O
2
O
2
O Cell
2
O may occur. The overload
2
Upper
87 psi
145 psi
464 psi
1450 psi
1)
3625 psi
1)
8700 psi
7MF4533
4)
470 psi
2300 psi
6090 psi
6090 psi
6090 psi
1), 2), 3)
6090 psi
87 psi
145 psi
435 psi
1450 psi
9-29