210
Reference Manual
00809-0100-4530, Rev DD
Safety Instrumented Systems (4-20 mA only)
May 2016
Safety Instrumented Systems (4-20 mA only)
7.
Perform a one-point level measurement verification of the device. Verify the
current level measurement with an independent measurement such as the BPCS
level-sensor or a manual reading.
This step verifies that the analog output is correct in the operating range and that the
Primary Variable is properly configured.
Note that the applied level has to be between Upper and Lower Range values,
otherwise the device enters alarm mode. If level is outside Maximum Measuring
Range, the level reading accuracy may be reduced. For best performance, use the
4-20 mA range points as calibration points. See
.
Figure 8-2. Range Values
8.
Remove the bypass and otherwise restore normal operation.
For troubleshooting the transmitter, see
Section 7: Service and Troubleshooting
4mA
20mA
Reduced accuracy
Reduced accuracy
R
ange 0 -100 %
Upper Blind Zone
Lower Blind Zone
Maximum Measuring Range