Sierra 240/241 Series Instruction Manual
Chapter 5 Troubleshooting & Repair
IM-240
5-5
4-20(2) FScale
= Analog counts to cal. full scale on analog
output 2.
4-20(3) Zero
= Analog counts to calibrate zero on analog
output 3.
4-20(3) FScale
= Analog counts to cal. full scale on analog
output 3.
Ext. 4 mA Cal.
= Enter 0 for auto calibration or enter factory
supplied A/D counts. Note: You must connect a known 4.00
mA input if you are going to calibrate the unit.
Ext. 20 mA Cal.
= Enter 0 for auto calibration or enter factory
supplied A/D counts. Note: You must connect a known 20.00
mA input if you are going to calibrate the unit.
External Input
= Enter what the external 4-20 mA input
represents, i.e. Temperature 1, Temperature 2, or Pressure. The
meter will use this for its internal calculations.
Ext. Full Scale
= Enter the full scale units that correlate to the
20 mA point. Note: It must be in the units for the selected input
type such as Deg F, Deg C, PSIA, Bar A, etc.
Ext. Zero Scale
= Same as above but for the 4 mA point.
Alarm (1) Test
= Used as a test to verify that the alarm circuit
is functioning. When low is selected the alarm will initiate a
low alarm on the output. When High is selected it will give a
high alarm on the output.
Alarm (2) Test
= Used as a test to verify that the alarm circuit
is functioning. When low is selected the alarm will initiate a
low alarm on the output. When High is selected it will give a
high alarm on the output.
Alarm (3) Test
= Used as a test to verify that the alarm circuit
is functioning. When low is selected the alarm will initiate a
low alarm on the output. When High is selected it will give a
high alarm on the output.
Reynolds Corr.
= Reynolds number correction for the flow
profile. Set to Enable for 241 insertion and set to Disable for
240 inline.
Gain Control
= Manual gain control (factory use only). Leave
set at 1.
Filter control
= Manual filter control. This value can be
changed to any number to force the fi value to a constant. A
value of zero activates the automatic filter control which sets fi
at a level that floats above the f value.
High Pass Filter =
Filter setting – Factory use only
Summary of Contents for INNOVA-MASS 240-VT
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Page 128: ...Appendix A Specifications Sierra 240 241 Series Instruction Manual A 6 IM 240...
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Page 130: ...Appendix A Specifications Sierra 240 241 Series Instruction Manual A 8 IM 240...
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