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2620A
Fluke 2620A User Manual
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Operating the Instrument from the Front P
anel
Measurement Connections
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STRAIN RELIEF
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Figure 3-2. Input Module Connections
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Table of Contents
Default Chapter
3
Table of Contents
3
Getting Started
13
Introduction
19
The Hydra Series II Data Acquisition Unit
21
The Hydra Series II Data Logger
21
Options and Accessories
21
Applications Software
21
IEEE-488 Interface Assembly
21
Connector Set (2620A-100)
21
Hydra Features
22
Accessories
23
Where to Go from here
23
Overview
25
Introduction
27
Setting up the Instrument
27
Chapter 2
27
Unpacking and Inspecting the Instrument
27
Adjusting the Handle
27
Adjusting Handle
27
Line Power
28
Front/Rear Panel Features
28
Front Panel
29
Left Display
30
Right Display
30
Annunciators
30
Display Annunciators
31
Rear View
32
Input Channels
33
Operating Modes
33
Turning the Instrument on
33
Front Panel Display
34
Reading the Display
34
Left Display
34
Right Display
34
Specific Annunciators
34
Front Panel Buttons
35
Selecting a Channel
35
Using the Buttons
35
Front Panel Pushbuttons
35
Setting up a Channel
36
Setting Alarm Limits and MX+B Scaling Values
38
Alarm Limits
38
MX+B Scaling
39
Setting the Scan Interval
39
Using the Monitor Function
40
Using the Scan Function
40
Reviewing Channel Data
40
Viewing the Totalizer Count
41
Using External DC Power
41
Review Array
41
Using the Rack Mount Kit
42
Operating the Instrument from the Front Panel
43
Chapter 3
45
Introduction
45
Operating Modes
45
Configuration Mode
45
Other Displayed Data
46
What Is the Present Configuration
46
If Power Is Interrupted
46
If the Configuration Is Reset
46
Channel Configuration
46
Selecting Channel, Function, and Range
46
Configuration Reset Settings
47
DC Voltage, AC Voltage
48
Resistance
49
Frequency
49
Thermocouple Temperature
50
Setting Alarms
51
Alarm Limits
51
RTD Temperature
51
Alarm Indications
52
Alarm Selection
52
Resetting Alarm Conditions
53
Using the Digital I/O Lines
53
MX+B Scaling
54
Initial Alarm Assignments, Digital I/O Lines 4 through 7
54
Instrument Configuration
56
Entering and Changing Numeric Values
56
MX+B Selection
56
Selecting Scan Interval
57
Selecting the Measurement Rate
57
Triggering
58
External Triggering
58
Changing the Temperature Unit
58
Measurement Rate Selection
58
Trigger Type Selection
58
Setting Date and Time of Day
59
Measurement Connections
59
Date/Time Selection
59
DC Volts, AC Volts, Frequency, and Thermocouples
60
Input Module Connections
61
Resistance and RTD
62
Thermocouple Ranges
62
Terminal and 4-Terminal Connections
63
Totalizing
64
Connections
64
General
64
Review Array
64
List Button Functions
65
Review Array
65
List Button Operation
66
Autoprint
67
Memory Storage
67
Front Panel Lock out Conditions
68
Front Panel Monitor Only Function
68
Front Panel Review Only Function
68
Autoprint/Memory Storage Selection
68
Clearing Memory Storage
68
Computer Interface-Initiated Lockouts
69
REM Annunciator
69
Calibration
69
REM Annunciation
69
Using the Computer Interface
71
Introduction
73
Chapter 4
73
Front Panel and Computer Interface Operations
73
Types of Computer Interface
73
Using the RS-232 Computer Interface
73
RS-232 Setup
74
Data/Stop Bits
74
Setting Communication Parameters (RS-232)
74
Autoprint and Memory Storage (RS-232)
75
Autoprint: Computer Interface Control
75
Autoprint: Output Format
75
Memory Retrieval
76
Memory Storage: Computer Interface Control
76
Cabling the Instrument to a Host or Printer (RS-232)
77
Clearing Memory
77
Memory Full Operation
77
Character Deletion
78
Character Echoing
78
Device Clear Using Ctrl C
78
Installation Test
78
RS-232 Information
78
RS-232 Prompts
79
Sample Program Using the RS-232 Computer Interface
79
Using the IEEE-488 Interface
79
IEEE-488 Operating Limitations
79
Installing the IEEE-488 Interface
79
Sample Program
80
Enabling the IEEE-488 Interface
82
IEEE-488.1 Capabilities
82
IEEE-488 Setup
82
Installation Test
83
General Information (RS-232 and IEEE-488)
83
How the Instrument Processes Input
83
Input Strings
84
Input Terminators
84
Typical Input Strings
84
Typical Input Strings
85
How the Instrument Processes Output
86
Sending Input Strings to the Instrument
86
Sending Numeric Values to the Instrument (RS-232 and IEEE-488)
86
Service Requests (IEEE-488 Only) and Status Registers
87
Event Status and Event Status Enable Registers
89
Status Byte Register
89
Reading the Status Byte Register
90
Event Status Register
90
Service Request Enable Register
91
Instrument Event Register
91
Computer Interface Command Set
92
Instrument Event Register (IER)
92
Command and Query Summary
93
Command and Query Reference
96
Additional Considerations
117
Chapter 5
119
Introduction
119
Measurement Rate
119
Advanced Trigger Mechanisms
119
Front Panel Trigger Control
119
Computer Interface Trigger Control
119
Both External and Monitor Alarms Disabled (Type 0)
120
External Trigger Enabled (Type 1)
120
External Trigger Timing
121
Monitor Alarm Enabled (Type 2)
122
Thermal Voltages
122
When Measuring Resistance or Temperature (RTD)
122
T and 4T-Connections
123
True RMS Measurements
124
Effects of Internal Noise in AC Measurements
124
Ohms Test Voltage
124
Waveform Comparison (True RMS Vs Average Responding)
124
Making Mixed Measurements
125
Comparison of Common Waveforms
126
Using Shielded Wiring
127
Alternate Suggestions
127
General Rule
127
Isolated and Shielded Sensor Configuration
127
Non-Isolated Sensor Configuration
127
In more Detail
128
Maintenance
129
Chapter 6
131
Introduction
131
Cleaning
131
Line Fuse
131
Self-Test Diagnostics and Error Codes
131
Performance Tests
132
Replacing the Line Fuse
132
Power-Up Error Codes
133
Recommended Test Equipment
134
Accuracy Verification Test
135
Channel Integrity Test
135
Performance Tests (Voltage, Resistance, and Frequency)
136
Thermocouple Measurement Range Accuracy Test
137
4-Terminal Resistance Test
138
Thermocouple Temperature Accuracy Test
139
Terminal Connections to 5700A
140
Open Thermocouple Response Test
141
Performance Tests for Thermocouple Temperature Function (IPTS-68/ITS-90)
141
Terminal Connections to Decade Resistance Box
141
RTD Temperature Accuracy Test
142
Performance Tests for RTD Temperature Function (Resistance) (DIN/IEC 751 Amendment 1) (IPTS-68)
142
RTD Temperature Accuracy Test (Using Decade Resistance Source)
142
Digital Input/Output Verification Tests
143
Performance Tests for RTD Temperature Function (DIN/IEC 751 Amendment 1 IPTS-68)
143
RTD Temperature Accuracy Test (Using DIN/IEC 751)
143
Digital Input Test
144
Digital Output Test
144
Totalizer Test
145
Digital Input Values
145
Totalizer Sensitivity Test
146
Dedicated Alarm Output Test
147
Dedicated Alarms Output Test
148
External Trigger Input Test
149
Calibration
149
External Trigger Test
149
Variations in the Display
150
Service
150
Appendices
151
A Specifications
153
Appendix
153
Specifications
153
Digital Inputs
164
ASCII & IEEE-488 Bus Codes
169
B ASCII & IEEE-488 Bus Codes
169
C IEEE-488.2 Devise Documentation Requirements
171
IEEE-488.2 Devise Documentation Requirements
171
Implementation of Ieee Standard
171
D Making Mixed Measurements
177
Making Mixed Measurements
177
Binary Upload of Logged Data (LOG_BIN?) (2625A Only
181
E Binary Upload of Logged Data (LOG_BIN?) (2625A Only
181
E-1. ASCII String Decoding
182
E-1. Floating Point Format
184
E-2. Floating Point Conversion
185
E-3. Example
186
RS-232 Cabling
187
F RS-232 Cabling
187
F-1. Summary of RS-232 Connections
188
F-2. Hydra (DB-9) to PC (DB-9) RS-232 Connection (Generic)
189
F-3. Hydra (DB-9) to PC (DB-25) RS-232 Connection
190
F-4. Hydra (DB-9) to Modem (DB-25) RS-232 Connection
191
F-5. Hydra (DB-9) to Printer (DB-25) RS-232 Connection
192
F-6. RS-232 DB9 and DB-25 Connectors
193
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Fluke 2620A Specifications
General
Brand
Fluke
Model
2620A
Category
Measuring Instruments
Language
English
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