GE DigitalFlow DF868 User Manual

Programming Site Data 1-33
March 2008
Calculating Kinematic
Viscosity
Use the KVTab option to calculate the kinematic viscosity (KV)
based on signal strength (SS) or temperature. To use this option, you
must select either a static KV value (entered at the Kinematic
Viscosity prompt in the PIPE submenu), a table of KV/SS values
(entered in the KV/SS submenu, discussed on page 1-60), or a table
of temperature vs. viscosity values (entered in the TmpKV submenu,
discussed on page 1-61).
1. At the
ADVAN window, press [F1] =KVTab to select KV Input
Selection.
2. Press
[F1] to use a static KV value, [F2] to activate the table of KV/
SS values, or
[F3] to activate a temperature vs. viscosity table.
a. If you select Tmp/KV, the program asks for the specific Fluid
Table. Press
[F1]-[F3] to select the desired table.
The DF868 returns to the
Advanced Features prompt.
Entering a K-factor Table Use this option to enter a table of K-factors. K-factors are used to
create a curve for the flow range (based on velocity or Reynolds
number) that compensates for non-linear flow rates. The DF868
accepts from 2 to 20 pairs. Complete the following steps to enter
multiple K-factors:
1. At the ADVAN window, press [F2]=MultK to select Multi K Factors.
2. Press [F1] to disable this option, or [F2] to Activate Multiple K
Factors. If you select
NO, the DF868 returns to the Advanced
Features
prompt.
3. At the Custom Type prompt, press [F1] to customize velocity
values, or
[F2] to customize Reynolds values.
4. Press [F1] to retain the current K-factor table, or [F2] to Edit the K
Factor Table. If you select NO, the DF868 returns to the
Advanced
Features
prompt.
Note: If the necessary velocity/Reynolds vs. K-factor data was not
provided with the DF868 documentation, the K-factor table
cannot be edited.
5. Enter the Number of K-factors to be entered into the table (from 2
to 20) and press
[ENT].
IMPORTANT: When editing the K-factor table, the velocities must
be entered in increasing order.
6. Enter the Velocity (or Reynolds) Value for K-factor number 1 and
press
[ENT].
7. Enter the K-factor corresponding to the velocity or Reynolds
number 1 and press
[ENT].
The VELOCITY# (or REYNOLDS #) and K FACTOR prompts repeat for each
pair. After you have entered all the pairs, the meter returns to the
Advanced Features prompt.

GE DigitalFlow DF868 Specifications

General

Brand	GE
Model	DigitalFlow DF868
Category	Measuring Instruments
Language	English