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

2640A/2645A NetDAQ
Users Manual
1-6
Serial Port.
ALARM/TRIGGER I/O
Connector.
MA (Master Alarm)
output is logic low when
any channel is in alarm;
TO (Trigger Output)
output is logic low for
nominal 125
ยต
s at the
start of any scan; TI
(Trigger Input) input
logic low triggers
scanning; DC PWR (dc
volts input) input is 9 to
16V dc to power the
instrument.
DIGITAL I/O
Connector.
Alarm outputs (logic
low for a channel in
alarm) and general
purpose I/O (terminals
0 to 7); totalizer input,
and GND.
Universal Input Module.
Directly wires 20 analog inputs
(Channels 1 to 20) without need
for external signal conditioning.
Ground Terminal.
Connects mainframe to ground.
AC Power Connector.
Connects to any line
source of 107 to 264 volts
ac (50/60 Hz).
Power Switch.
Applies power to the
instrument (ac or dc
operation).
Ground Terminal.
Use for 50-ohm
termination ground
lug.
+
WARNING: TO AVOID ELECTRICAL SHOCK, DISCONNECT LINE CORD BEFORE REMOVING COVER
9-16V
DC PWR
DIGITAL I/O
MA TO TI 0 1 2 3 4 5 6 7
+30V
ALARM/TRIGGER I/O
ETHERNET
NOT FOR CONNECTION TO
PUBLIC TELEPHONE SYSTEMS
MEETS VFG 243 / 1991
OVERVOLTAGE CATEGORY II PER IEC 1010-1
SERIAL PORT
MODEL: 2640A / 41A 2645A / 46A
ON / OFF
XMT
RCV LK
107-264V
50/60 Hz
15VA
Ethernet 10BaseT
Connector.
A RJ-45 connector that
interfaces the instrument with
a 10BaseT Twisted-Pair
Ethernet network. The
instrument automatically
selects the active 10Base2 or
10BaseT connector.
Ethernet Indicators.
XMT (transmit) blinks
red for instrument
Ethernet transmissions;
RCV (receive) blinks
red for any Ethernet
activity on the network;
LK (link) lights amber
when the Ethernet
interface is active for
the Twisted-Pair
connection, and blinks
for a data collision for
the coaxial connection.
Ethernet 10Base2
Connector.
A BNC-type connector that
interfaces the instrument
with a 10Base2 coax
network. The instrument
automatically selects the
active 10Base2 or 10BaseT
connector.
Figure 1-4. 2640A/2645A Rear Panel










