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

Maintenance
Performance Test
6
6-29
2. Connect Test Leads At the DIGITAL I/O connector, connect the Σ
(Totalizer) test lead and GND test lead to a signal generator’s output
terminals. Adjust the signal generator for an output of 1.5V rms sine wave at
10 Hz.
3. Open Spy Window Select the Spy command from the Utilities menu. Select
01TOTAL. Click OK to open the Spy window.
4. Verify Totalizer Count The Spy window displays the Totalizer count.
Verify the totalizer count is advancing at approximately 10 counts per spy
window update (nominal 1 second intervals).
5. Close Spy Window.
Master Alarm Output Test 6-30.
This test checks the Master Alarm output for a logic low when a channel is in
alarm.
1. Connect Test Leads to ALARM/TRIGGER I/O Connector Remove the
8-position ALARM/TRIGGER I/O connector from the instrument rear panel.
Connect a test lead to each line, MA (Master Alarm), TO (Trigger Output), TI
(Trigger Input), plus a test lead to the GND line. (See Figure 2-6.) Reinstall
the connector.
2. Measure MA Line Using a digital multimeter, measure the output of the
unset MA test lead, referenced to the GND test lead, for a voltage greater than
+3.8V dc.
3. Verify Configuration Channel 1 for Volts DC In NetDAQ Logger, verify
channel 1 is configured for Volts dc, 3V range. (See “Configuring Analog
Channel Functions" in Chapter 3 of this manual.)
4. Verify Configuration Channel 1 for Alarms In NetDAQ Logger, verify
channel 1 is configured for an Alarm 1 with Alarm Sense=LO, Alarm
Value=1 and Digital Output=DO0. (See "Configuring Alarms” in Chapter 3 of
this manual.)
5. Start Instrument Scanning Click the Start Instrument button on the Button
Bar to start instrument scanning. Scanning is initiated to enable the Master
Alarm output.
6. Measure MA Line Using a digital multimeter, measure the output of the set
MA test lead, referenced to the GND test lead, for a voltage less than
+0.8V dc.
7. Stop Scanning Select Logging | Stop Instrument to stop instrument scanning.










