Emerson IFT9701 Manual De Usuario
Model IFT9701 Transmitter Instruction Manual
31
Flowmeter Startup
continued
Co
nfig
nfig
uratio
n wit
h
Co
mm
mm
u
n
ic
ato
r
T
ro
u
b
lesho
ot
ing
ing
Con
fig
ur
atio
atio
n
w
ith
Pr
oL
in
ith
Pr
oL
in
k
II
Flo
w
meter Star
tup
Figure 5-1
Location of LED, zero button, and LCD
5.5
Flowmeter zeroing
After the flowmeter has been fully installed, you must perform the zeroing procedure.
•
To perform the zeroing procedure using the flowmeter zero button, see the following
instructions.
instructions.
•
To use a HART Communicator for zeroing, see Chapter 6.
•
To use ProLink II software for zeroing, see Chapter 7.
5.5.1
Zeroing procedure
1. Prepare the flowmeter for zeroing:
a.
Install the flowmeter according to the instructions in this manual.
b.
Apply power to the meter, then allow it to warm up for at least 30 minutes.
c.
Run the process fluid to be measured through the flowmeter until the meter temperature
approximates the normal process operating temperature.
approximates the normal process operating temperature.
d. Ensure that the sensor is completely filled with fluid.
2. Close the shutoff valve downstream from the meter.
CAUTION
Flow through the flowmeter during flowmeter zeroing
will result in an inaccurate zero setting.
will result in an inaccurate zero setting.
Make sure fluid flow through the flowmeter is completely
stopped during flowmeter zeroing.
stopped during flowmeter zeroing.
Area approvals tag
Field wiring compartment
With optional LCD
With optional LCD
Sensor wiring compartment
Circuit board
compartment
User access not
normally required
Zero button
Diagnostic LED