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2620A/2625A
Users Manual
ii
Using the Scan Function.................................................................................... 2-16
Reviewing Channel Data................................................................................... 2-16
Viewing the Totalizer Count............................................................................. 2-17
Using External DC Power ................................................................................. 2-17
Using the Rack Mount Kit................................................................................. 2-18
3 Operating the Instrument from the Front Panel............................... 3-1
Introduction ....................................................................................................... 3-3
Operating Modes............................................................................................... 3-3
Other Displayed Data ........................................................................................ 3-4
What is the Present Configuration?................................................................... 3-4
If Power is Interrupted .................................................................................. 3-4
If the Configuration is Reset ......................................................................... 3-4
Channel Configuration ...................................................................................... 3-4
Selecting Channel, Function, and Range ...................................................... 3-4
Setting Alarms............................................................................................... 3-9
Alarm Limits............................................................................................. 3-9
Alarm Indications ..................................................................................... 3-10
Resetting Alarm Conditions ..................................................................... 3-11
Using the Digital I/O Lines........................................................................... 3-11
Mx+B Scaling ............................................................................................... 3-12
Instrument Configuration .................................................................................. 3-14
Entering and Changing Numeric Values....................................................... 3-14
Selecting Scan Interval.................................................................................. 3-15
Selecting the Measurement Rate................................................................... 3-15
Triggering...................................................................................................... 3-16
External Triggering....................................................................................... 3-16
Changing the Temperature Unit.................................................................... 3-16
Setting Date and Time of Day....................................................................... 3-17
Measurement Connections ................................................................................ 3-17
DC Volts, AC Volts, Frequency, and Thermocouples.................................. 3-18
Resistance and RTD...................................................................................... 3-20
Totalizing........................................................................................................... 3-22
General.......................................................................................................... 3-22
Connections................................................................................................... 3-22
Review Array..................................................................................................... 3-22
List Button Functions........................................................................................ 3-23
Autoprint ........................................................................................................... 3-25
Memory Storage................................................................................................ 3-25
Front Panel Lock out Conditions....................................................................... 3-26
Front Panel Review Only Function............................................................... 3-26
Front Panel Monitor Only Function.............................................................. 3-26
Computer Interface-Initiated Lockouts......................................................... 3-27
REM Annunciator ............................................................................................. 3-27
Calibration......................................................................................................... 3-27
4 Using the Computer Interface........................................................... 4-1
Introduction ....................................................................................................... 4-3
Front Panel and Computer Interface Operations........................................... 4-3
Types of Computer Interface ........................................................................ 4-3
Using the RS-232 Computer Interface .............................................................. 4-3
Setting Communication Parameters (RS-232).............................................. 4-4
Autoprint and Memory Storage (RS-232)..................................................... 4-5