GE DigitalFlow DF868 User Manual

March 2008
1-22 Programming Site Data
Setting Up Inputs/Outputs The following specific tasks may be performed via the I/O submenu:
• Enter a zero cutoff value to eliminate low flow reading fluctuations
• Set up any temperature input supply and return for the Energy
Option, or the fluid temperature input for Temperature
Compensation
While following the programming instructions, refer to the menu map
in Figure A-3 on page A-3. Remember to record all programmed data
in Appendix B, Data Records.
1. To enter the
Channel PROGRAM menu, press [F1] or [F2] (depending
on the desired channel) at the
User PROGRAM prompt.
2. Enter the
I/O submenu by pressing [F4] at the Channel PROGRAM
prompt.
Zero Cutoff Value 3. Enter the desired Zero Cutoff value and press the [ENT] key. A
value of 0.1 ft/s (0.03 m/s) is recommended, but values from 0–1
ft/s (0–0.3 m/s) are acceptable.
If you have not enabled the Energy Option in the
SYSTEM submenu or
a Viscosity Table in the
ADVAN submenu, the DF868 returns to the
Channel PROGRAM prompt. But if you have enabled the Energy
Option, the input supply and return prompts let you specify either live
or fixed supply and return temperature inputs for the energy flow
calculation. If you have enabled a temperature vs. viscosity table, the
fluid temperature prompt lets you specify a live or fixed temperature
input.
Temperature Inputs 4. If you have not enabled the Energy Option, proceed to step 5.
Otherwise, complete the steps below.
a. At the Temperature Input Supply 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.
Note: If Slot X contains an activated option card with an analog
input assigned to TEMP or an RTD input, Slot X appears as
an option at the above prompt. If the process temperature is
stable, a fixed value may be used, but most applications
require a live temperature input.

GE DigitalFlow DF868 Specifications

General

Brand	GE
Model	DigitalFlow DF868
Category	Measuring Instruments
Language	English

Summary

Chapter 1: Programming Site Data

Entering Programming Mode

Steps to access and navigate the device's programming mode.

Entering Channel-Specific Data

Procedures for configuring parameters unique to each measurement channel.

Entering Global System Data

Configuration of system-wide parameters applicable to all channels.

Saving Site Data Configuration

Guidance on storing the current configuration settings as a site file.

Recalling Saved Site Data

Instructions on how to retrieve and activate previously saved site configuration data.

Chapter 2: Displaying Data

Displaying Transducer Signal Data

Guidance on graphically displaying various transducer signals against time.

Chapter 3: Logging Data

Creating a Standard Log File

Steps to create and configure standard data logging files with parameters.

Stopping an Active Log Process

Instructions on how to terminate an active data logging process.

Creating an Error Log

Guidance on creating log files specifically for recording error conditions.

Chapter 4: Printing Data

Setting Up the Printer Connection

Steps for connecting and configuring a printer for use with the device.

Chapter 5: Clearing Data

Clearing Totalized Measurement Values

Procedure to reset totalized measurement values and the stopwatch.

Deleting Site Parameter Files

Instructions for removing saved site parameter files from memory.

Deleting Log Files

Chapter 6: Serial Communications

Wiring the RS232 Interface

Details on wiring the RS232 serial interface for PC connectivity.

Checking DF868 Baud Rate Settings

Optional RS485 Serial Interface

Setting Up Ethernet Connection

Instructions for establishing an Ethernet connection for network communication.

Appendix B: Data Records

Initial Setup Data Recording

Template for recording initial device setup parameters during installation.

Appendix C: Programming with PanaView

Setting Up Communications Port in PanaView

Adding the DF868 Device in PanaView

Editing DF868 Meter Properties via PanaView

Guidance on editing device properties like clock and signals using PanaView.

Changing Meter Settings Remotely with PanaView

Instructions for changing device settings remotely using the PanaView software.

Appendix D: Foundation Fieldbus Communications

Configuration Utility Setup for Fieldbus

Selecting Desired Measurements for AI Blocks

Procedure for selecting specific measurements for Analog Input (AI) blocks.

Selecting Units for AI Blocks

Function Block Application in Fieldbus