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NetScan User’s Manual Calibration 6-9
1.
Connect HI, LO, -S, and +S lines from the precision calibrator to the binding posts of the calibration
card, as indicated in the figure above.
2.
Apply -4.4 VDC (minus 4.4 VDC) from the calibrator to the calibration card. Use a precision digital
multimeter to verify voltage accuracy.
Note: You can view the main unit calibration constants by typing:
C#0X
QC?
… selects the main unit (chassis)
To monitor the chassis calibration voltage type:
*B
…to clear the buffer
C3,90X
…to address the backplane
T1,1,0,0X;@X
…to trigger the acquisition (Trigger LED flashes);
@X
starts acquisition
U13X
…very entry of U13X results in an updated value of voltage in counts
Voltage will appear in counts. For 4.4 volts the reading should be 32038.844 counts.
Note that
@X
can be used to start or stop the acquisition.
3.
Type
G0,91X
. The Trigger LED will flash, indicating that gain calibration is in progress. When
flashing stops, the chassis gain calibration is complete.
4.
Type
U2X
.
U128
should appear, indicating the unit is in calibration mode and that no error has
occurred.
5.
Apply +4.4 VDC (positive 4.4 VDC) from the calibrator to the calibration card. Use a precision digital
multimeter to verify voltage accuracy.
6.
Type
G0,91X
. The Trigger LED will flash, indicating that gain calibration is in progress. When
flashing stops, the chassis gain calibration is complete.
7.
Type
U2X
.
U128
should appear, indicating the unit is in calibration mode and that no error has
occurred.
Response codes and meanings applicable to calibration are as follows:
Response to
U2X
Indication for Calibration Mode
U128
No error
U129
Read Failure (EEPROM Error)
U130
Write Failure (EEPROM Error)
U132
Chksum Err (EEPROM Error)
U136
Cal Err (offset, gain, or temperature
sensor out of range)
U144
Invalid password
U160
Invalid command
8.
Type
EX
. The calibration mode is disabled.
9.
Position the Calibration Enable/Disable Pushbutton in the “non-indent” (disable) position.
Note to
ChartScan users:
Early production ChartScan units do not have a
Calibration Enable/Disable Pushbutton
.
For these units the calibration mode is enabled by positioning the DIP switch right-most micro-switch (#9) to the “1”
(up) position. Note that ChartScan units with the pushbutton have it located on the rear panel, as indicated in the
NetScan figure (page 6-2).
10.
Remove power from the main unit and all connected devices.
11.
Remove the calibration card from the chassis.
You are now ready to calibrate the signal conditioning cards as described in the following sections of this
chapter.
- OMB-NETSCAN 1
- OMEGAnet 2
- On-Line Service 2
- Internet e-mail 2
- How To Use This Manual 3
- Table of Contents 4
- 6 Calibration 5
- 7 Hardware Setup 5
- Inspect Your System 7
- Check and Install Hardware 8
- Setup for Ethernet Operation 10
- NetScan and TCP/IP Addressing 14
- Protocol 14
- IP Address 14
- Sub-net Mask 14
- Gateway Address 14
- Configuration 15
- Connect Channel Signal Inputs 16
- DB50 Pin Descriptions 17
- Overview 19
- ChartViewNET, Basic Concepts 19
- Chartvw.cvw 20
- ChartViewNET Quick Start 21
- 1. Select Interface Device 24
- 2. Configure Chart Setup 25
- ChartView Toolbar Reference 27
- 4. Configure Acquisition 28
- 5. Review Configuration 29
- 8. Start Charts 30
- A Note In Closing 30
- General Description 31
- Operational Aspects 32
- Software and Hardware 33
- NetScan Specifications 33
- Channels 34
- Triggers 35
- Data Storage & Format 35
- Calibration 37
- Three Ways of Using ChartView 40
- 1) Waiting for Trigger 41
- Main Window 42
- Channel Information Region 44
- Status Indicator Region 45
- Main Window Toolbar 46
- Adding Channel 2 to Chart 1 48
- Adding a Chart to Group 1 51
- PostView post-acq data viewer 53
- Arm Acquisition 53
- Disarm 53
- Main Window Pull-Down Menus 54
- File Menu Note 55
- Link to Excel… 59
- Upload Data 59
- Acquisition 59
- Stop Upload 59
- Setup IEEE 488 61
- RS-232/422 61
- … Status 62
- Instrument Error 64
- Instrument 64
- Realtime Clock 64
- Bar Graph Meters 66
- Analog Meters 67
- Digital Meters 68
- Meter Toolbars 69
- Meter Pull-Down Menus 69
- Meters Configuration Menu 70
- Configuring a Meter 70
- Setup Window 71
- Acquisition Setup Dialog Box 74
- Acquisition Setup 76
- Data Destination Dialog Box 77
- Chart Setup Wizard 79
- PostView 83
- Introduction 84
- Starting PostView 85
- PostView Toolbar Items 86
- Menu Items 88
- Automatic Display Creation 90
- Display Configuration 91
- Editing a Display 92
- PostView 5-11 93
- Manually Creating a Display 94
- PostView Timebase 97
- Calibration 6 99
- &$87,21 100
- Hardware Protected RAM 100
- ScanCal Software Application 101
- Using ScanCal 102
- Interface Parameters 102
- Calibration Without ScanCal 103
- Calibration of Main Unit 104
- Gain Calibration of Main Unit 106
- Offset Calibration of Cards 108
- Cold Junction Calibration 115
- Hardware 7 119
- Rear Panel 120
- Power Aspects 121
- Memory Configuration 122
- Serial Port Pin Connectors 126
- (RS-232) 127
- (RS-422) 127
- Digital I/O Lines 128
- External TTL BNC Connectors 129
- Signal Conditioning Cards 129
- CSN14/TC/P 130
- CSN14/LV/ (T, B, & S) 132
- CSN14/HV/S 133
- CSN/Relay Card 134
- CSN/Relay Card Specifications 135
- 7-18 NetScan User’s Manual 136
- Automatic Channel Assignment 137
- Appendices 139
- A-ii NetScan User’s Manual 140
- API Commands 141
- Command Syntax 142
- Command Interpretation 143
- Command Summary 146
- Command Reference 150
- - Trigger On Command 151
- - Power-On Reset 154
- - Power-Up Settings 154
- - Time Stamping 155
- - Assign Alarm Output 156
- - Alarm Stamping 157
- - Configure Channels 158
- - Select Card 160
- - Set Relay Make Time 161
- - End Calibration Mode 161
- - Error Status Query 162
- - Set Data Format 163
- - Calibrate Channel Gain 166
- - Set Scan Interval 168
- - Digital Input Stamping 169
- - Enter Calibration Mode 171
- - Set Trigger Level 172
- - Set Measuring Mode 173
- - Set Event Mask 174
- - Set Digital Outputs 175
- - Program Trigger Times 176
- - Query 177
- - Set Query Terminator 178
- - Query Card Data 180
- - Read Buffered Data 181
- - Read Last Readings 182
- - Set Real Time Clock 182
- - User Status 185
- - Set User Terminator 189
- - Set Average Weight 189
- - Execute 190
- API Command Reference 192
- Appendix A 192
- A-52 NetScan User’s Manual 192
- Ethernet API Reference 193
- Appendix C 197
- Contents 197
- Memory Allocation 198
- Measuring Modes 199
- Normal Mode 200
- Configuration Requirements 202
- Channel Configuration 203
- Scan Configuration 205
- Acquisition Configuration 206
- Pre-Trigger State 207
- C-12 NetScan User’s Manual 208
- Trigger and Stop Events 209
- C-14 NetScan User’s Manual 210
- Time Stamping ( 211
- Alarm Stamping ( 211
- Digital Input Stamping ( 212
- With Digital Input Stamping: 213
- Also see Digital Input ( 213
- ) command in Appendix A 213
- Trigger Block Organization 214
- NetScan User’s Manual C-19 215
- Multiple Trigger Blocks 216
- NetScan User’s Manual C-21 217
- C-22 NetScan User’s Manual 218
- NetScan User’s Manual C-23 219
- C-24 NetScan User’s Manual 220
- Configuring Alarms 222
- Set Point Hysteresis 223
- Digital I/O Operation 224
- Appendix D 225
- HLL Register Contents 226
- Accessing HLL Registers 226
- Example 1: 227
- Example 2: 227
- Example 3: 228
- Example 4: 228
- Example 5: 228
- Data Format 229
- Data Output Formats 230
- Engineering Units Data Format 230
- Binary Data Format 232
- Counts Data Format 232
- Configuring Power-Up State 233
- Query (?) Commands 234
- U Status Commands 234
- Theory of Operation 236
- NetScan User’s Manual D-13 237
- Event Status Register 238
- Event Status Enable Register 238
- Status Byte Register 239
- Trigger Latency 241
- Trigger Overrun 241
- Buffer Overrun 241
- Real Time Clock 242
- NetScan Program Examples 243
- Appendix E 244
- E-2 NetScan User’s Manual 244
- ASCII Code Summary 245
- ASCII Code Details 247
- Appendix F 248
- F-4 NetScan User’s Manual 248
- NetScan Error Messages 249
- Appendix G 250
- G-2 NetScan User’s Manual 250
- Abbreviations 251
- Appendix H 252
- H-2 NetScan User’s Manual 252
- NetScan User’s Manual 254
- WARRANTY/DISCLAIMER 255
- RETURN REQUESTS/INQUIRIES 255
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