NetDAQ Users Manual
Table Of Contents
- 2640A/2645A NetDAQ Users Manual
- 1. Overview
- 2. Preparing for Operation
- Introduction
- Instrument Preparation
- Unpacking and Inspecting the Instrument
- Positioning and Rack Mounting
- Connecting to a Power Source and Grounding
- Universal Input Module Connections
- Digital I/O Connections
- Alarm/Trigger I/O Connections
- External Trigger Wiring for a Group Instrument
- Controls and Indicators
- Front Panel Operating Procedures
- Power-On Options
- Displaying a Monitor Channel
- Displaying the Digital I/O Status
- Displaying the Totalizer Status
- Reviewing and Setting the Base Channel Number
- Reviewing and Setting the Line Frequency
- Reviewing and Setting the Network Type
- Reviewing and Setting the General Network Socket Port
- Reviewing and Setting the General Network IP Address
- Reviewing and Setting the Subnet Mask and Default Gateway
- Viewing the Instrument Ethernet Address
- Host Computer and Network Preparation
- Testing and Troubleshooting
- 3. Configuring NetDAQ Logger for Windows
- Introduction
- Configuring Network Communications
- Configuring the Current Setup
- Setup Files
- Configuring an Instrument
- Configuring Channels
- Configuring Mx+B Scaling From a File
- Entering an Instrument's Description
- Copying a Channels Configuration
- Default Configuration Settings
- Using Configuration Lockout
- Saving an Instrument's Configuration as a Text File
- Configuring the netdaq.ini File
- 4. Operating NetDAQ Logger for
- 5. Using Trend Link for Fluke
- Introduction
- Getting the Right Look for Your Trend Link Chart
- 6. Maintenance
- Introduction
- Self-Test Diagnostics and Error Codes
- Cleaning
- Fuse Replacement
- Performance Test
- Configuring the Performance Test Setup
- Initializing the Performance Test Setup
- Accuracy Performance Tests
- Volts DC Accuracy Test (2640A)
- Volts DC Accuracy Test (2645A)
- Volts AC Accuracy Test
- Frequency Accuracy Test
- Analog Channel Integrity Test
- Computed Channel Integrity Test
- Thermocouple Temperature Accuracy Test
- Open Thermocouple Response Test
- 2-Wire Resistance Accuracy Test (2640A)
- 2-Wire Resistance Accuracy Test (2645A)
- 4-Wire Resistance Accuracy Test (2640A)
- 4-Wire Resistance Accuracy Test (2645A)
- RTD Temperature Accuracy Test (Resistance) (2640A)
- RTD Temperature Accuracy Test (Resistance) (2645A)
- RTD Temperature Accuracy Test (DIN/IEC 751 RTD)
- Digital Input/Output Tests
- Totalizer Tests
- Master Alarm Output Test
- Trigger Input Test
- Trigger Output Test
- Calibration
- Variations in the Display
- Service
- Replacement Parts
- Appendices
- A. Specifications
- Introduction
- 2640A/2645A Combined Specifications
- 2640A Specifications
- 2640A DC Voltage Measurement Specifications
- 2640A AC Voltage Measurement Specifications
- 2640A 4-Wire Resistance Measurement Specifications
- 2640A 2-Wire Resistance Measurement Specifications
- 2640A RTD's 4-Wire, per ITS-1990 Measurement Specifications
- 2640A RTD's 2-Wire per ITS-1990 Measurement Specifications
- 2640A Thermocouple per ITS-1990 Measurement Specifications
- 2640A Frequency Measurement Specifications
- 2645A Specifications
- 2645A DC Voltage Measurement Specifications
- 2645A AC Voltage Measurement Specifications
- 2645A 4-Wire Resistance Measurement Specifications
- 2645A 2-Wire Resistance Measurement Specifications
- 2645A 4-Wire RTD per ITS-1990 Measurement Specifications
- 2645A Thermocouple per ITS-1990 Measurement Specifications
- 2645A Frequency Measurement Specifications
- B. Noise, Shielding, and Crosstalk Considerations
- C. True-RMS Measurements
- D. RTD Linearization
- E. Computed Channel Equations
- F. Data File Format
- G. Dynamic Data Exchange (DDE)
- H. Ethernet Cabling
- I. Network Considerations
- J. Error Messages & Exception Conditions
- K. Fluke Service Centers
- A. Specifications
- Index
- Instrument Parameter Record (Isolated Network)
- Instrument Parameter Record (General Network)
- General Network Parameter Record
- Host Computer General Network Parameter Record
Overview
Instrument Features and Capabilities
1
1-7
Analog Channels 1-3.
The analog channel (1 to 20) measurement connections are made via the
Universal Input Module. External signal conditioning for the analog inputs is not
necessary. The host computer configures all analog channels using NetDAQ
Logger.
Computed Channels 1-4.
In addition to the 20 analog channels, the instrument provides an additional 10
computed channels (21 to 30) by processing analog channels and other computed
channels. The following methods are used:
• The average of a group of channels,
• The difference between any two channels,
• The difference between a channel and the average of a group of channels,
• A mathematical equation.
Channel Numbering 1-5.
Each instrument channel, measured or computed, is identified by Global Channel
Number (GCN). The first two digits of the GCN are the Base Channel Number
(01 to 99) that identifies the instrument. The last two digits are the channel
number. For example, GCN 2618 indicates instrument 26 and analog channel 18
(below). When the instrument is in the quiescent state, the channel number of the
GCN shows dashes, for example, 45-- for instrument 45.
Mx+B
ALARM
CH
SCAN
MON
Mx+B Scaling 1-6.
Mx+B scaling multiplies a measurement by a multiplier M and then offsets it by
an offset B. For example, Mx+B scaling of 100x+50 applied to a measured or
computed channel value of 1.15 results in a reading of 100(1.15)+50=165. A
common use of Mx+B scaling is to calibrate a sensor or transducer to provide for
display and recording in engineering units. The Mx+B annunciator lights when a
monitored channel has scaling applied.