GE DigitalFlow DF868, Руководство по программированию

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Programming Site Data 1-23
March 2008
Temperature Inputs (cont.)
•
If you selected Fixed , enter the known fixed process
Temperature and press
[ENT]
. The meter only accepts values
from -328° to 1,832°F (-200° to 1,000° C).
•
If you selected Slot X, press
[F1]
to
[F4]
to select the desired
temperature input.
b. At the Temperature Input Return prompt, press
[F1]
to enter a
constant temperature value or press
[Fx]
to select the option
card in Slot x that will supply the live temperature input.
•
If you selected Fixed , enter the known fixed process
Temperature and press
[ENT].
The meter only accepts values
from -328° to 1,832°F (-200° to 1,000° C).
•
If you selected Slot X, press
[F1]
to
[F4]
to select the desired
temperature input.
5. If you have not enabled Temperature Compensation, continue to
Procedure Options on the next page. Otherwise, complete the
steps below.
a. At the Fluid Temperature Input prompt, press
[F1]
to enter a
constant temperature value or press
[Fx] to select the option card
in Slot x that will supply the live temperature input.
•
If you selected Fixed , enter the known fixed process
Temperature and press
[ENT].
The meter only accepts values
from -328° to 1,832°F (-200° to 1,000° C).
•
If you selected Slot X, press
[F1]
to
[F4]
to select the desired
temperature input.
The DF868 returns to the Channel Program prompt. Table 1-12
below lists low and high limits for I/O parameters.
Table 1-12: Limits for I/O Parameters
Parameter Low Limit High Limit
CHAN 1/2
Zero Cutoff 0 1 ft/s (0.3 m/s)
Temperature Input -328°F (-200°C) 1,832°F (1,000°C)
GLOBL
Min. Pulse ON Time 50 µsec 500,000 µsec
Full Scale Frequency 1 10,000