Fluke NetDAQ 2645A User Manual Page 215
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Specifications
2640A/2645A Combined Specifications
A
A-5
Table A-3. 2640A/2645A DIGITAL I/O Specification (cont)
Specification Characteristic
Output Voltage - TTL Logical Zero 0.8V maximum for an I out of -1.0 mA (1 LSTTL
load)
Output Voltage - TTL Logical One 3.8V minimum for an I out of 0.05 mA (1 LSTTL
load)
Output Voltage - Non-TTL Load Zero 1.8V maximum for an Iout of -20 mA
Output Voltage - Non-TTL Load One 3.25V maximum for an Iout of -50 mA
Trigger In A-7.
Table A-4 provides a summary of the Trigger In specifications. The Trigger In
input is located on the ALARM/TRIGGER I/O connector, terminals TI and GND.
Table A-4. 2640A/2645A Trigger In (TI) Specification
Specification Characteristic
Logical High - Trigger not set Minimum: 2.0V
Maximum: 7.0V
Logical Low - Trigger set Minimum: -0.6V
Maximum: +0.8V
Compatibility TTL or Contact Closure
Isolation None (dc coupled)
Minimum Pulse Width 5 µs
Maximum Frequency Nominal 400 Hz
Repeatability 3 ms
- 2640A/2645A 1
- PCaution 4
- SAFETY TERMS IN THIS MANUAL 5
- Table of Contents 7
- 2640A/2645A NetDAQ 10
- Contents 11
- List of Tables 13
- List of Figures 15
- Overview 17
- Introduction 1-1 19
- Analog Channels 1-3 23
- Computed Channels 1-4 23
- Channel Numbering 1-5 23
- Mx+B Scaling 1-6 23
- Alarms 1-7 24
- Channel Monitoring 1-8 24
- Digital I/O 1-9 24
- Totalizer 1-10 24
- Trigger Input 1-11 25
- Trigger Output 1-12 25
- Alarm Trigger 1-16 26
- Master Alarm 1-13 26
- Interval Trigger 1-14 26
- External Trigger 1-15 26
- Isolated Networks 1-19 28
- General Networks 1-20 28
- Ethernet Port Selection 1-21 28
- Scanning and Logging 1-24 29
- RS-232 Interface 1-25 29
- Options and Accessories 1-27 30
- Options and Accessories 31
- Preparing for Operation 33
- Introduction 2-1 35
- Instrument Preparation 2-2 35
- Instrument Preparation 37
- PWarning 38
- Trigger Input 2-16 45
- Trigger Output 2-17 46
- Master Alarm 2-18 46
- Controls and Indicators 2-20 47
- Front Panel Controls 2-21 49
- Front Panel Indicators 2-22 50
- Rear Panel Controls 2-23 52
- Rear Panel Indicators 2-24 52
- Power-On Options 2-26 53
- Testing and Troubleshooting 87
- Configuring NetDAQ Logger for 95
- Introduction 3-1 97
- Configuring the Current Setup 101
- Setup Files 3-14 105
- Opening a Setup File 3-16 106
- Setup Files 107
- Configuring an Instrument 109
- Configuring Channels 3-23 112
- Configuring Channels 113
- Equation Syntax 3-28 115
- Configuring Alarms 3-30 117
- Operating NetDAQ Logger for 125
- Introduction 4-1 127
- Simulated Logging 4-6 129
- Real-Time Displays 4-8 130
- Real-Time Displays 131
- The Spy Window 4-11 133
- Quick Plot 4-12 135
- Data Files 4-14 137
- Configuring a Data File 4-15 138
- Data Files 139
- Converting Data Files 4-16 142
- Optimizing Performance 143
- Optimizing Performance 4-18 144
- Using Online Help 4-24 145
- Using Trend Link for Fluke 147
- Introduction 5-1 149
- Introduction 151
- Curve Preferences 5-21 164
- Background Preferences 5-22 167
- Using the Note System 5-25 170
- Printing a Chart 5-26 170
- Click OK to print the chart 172
- Maintenance 173
- Introduction 6-1 175
- Cleaning 6-3 176
- Fuse Replacement 6-4 176
- Fuse (15/100A, 250V 177
- Time Delay) 177
- Performance Test 6-5 178
- Performance Test 179
- Volts AC Accuracy Test 6-11 185
- Frequency Accuracy Test 6-12 186
- 5. Close Spy Window 191
- Step 2) 194
- Digital I/O Output Test 6-25 198
- Digital Input Test 6-26 199
- Totalizer Tests 6-27 200
- Totalizer Count Test 6-28 200
- Trigger Input Test 6-31 202
- Trigger Output Test 6-32 202
- Calibration 6-33 203
- Calibration 205
- Service 6-38 206
- Replacement Parts 6-39 208
- Appendices 209
- Introduction A-1 211
- Digital I/O A-6 214
- Trigger In A-7 215
- Trigger Out A-8 216
- Master Alarm A-9 216
- 2640A Specifications A-12 217
- Specifications 219
- 2645A Specifications A-21 227
- Introduction B-1 237
- Noise and Shielding B-3 237
- Crosstalk Considerations B-4 238
- Crosstalk Considerations 239
- Introduction C-1 241
- True-RMS Measurements 243
- Introduction D-1 245
- Fixed-385 RTD D-2 245
- Custom-385 RTD D-3 246
- RTD Linearization 247
- Introduction E-1 251
- Introduction F-1 253
- File Format F-2 253
- Introduction G-1 255
- DDE Links Reference G-2 255
- DDE Example Using Excel G-3 256
- Dynamic Data Exchange (DDE) 257
- Introduction H-1 261
- UTP Cables H-2 261
- Introduction I-1 263
- Network Primer I-4 265
- Network Considerations 267
- Drivers I-10 271
- TCP/IP Protocol Stack I-11 273
- Glossary I-24 293
- Introduction J-1 299
- Full-Disk J-3 299
- Scan Queue Overflows J-4 299
- Error Conditions J-5 299
- Error and Status Messages 301
- Instrument not found! 315
- Not responding to command! 321
- Performing Rollover 322
- Unable to Open Mx+B File! 329
- Unable to open RS232 port! 329
- Unable to Open Setup File! 330
- Unable to stop scanning! 330
- Unknown Communication Error! 331
- Window creation failed! 332
- Winsock.dll not found! 332
- Fluke Service Centers 333
- (continued) 341
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