I-1
Index
A
Alarm
Failure mode
Ambient Temperature
Approvals
. . . . . . . . . . . . . . . . . B-1
C
Changing Switch Positions
Configuration
. . . . . . . . . . . . . . 3-2
244EC Interface
Ambient temperature
Humidity limits
Custom
. . . . . . . . . . . . . . . A-8
Process variable
Single Transmitter
Standard
. . . . . . . . . . . . . . A-8
Transmitters identically
Configuration Interface
Considerations
Electrical
. . . . . . . . . . . . . . 1-3
Environmental
General
. . . . . . . . . . . . . . . 1-3
Mechanical
D
Dimensional Drawings
Configuration interface
Enclosure
. . . . . . . . . . . . . . A-9
Transmitter
E
Electrical considerations
Electrical connections
Surges and transients
Enclosure Ratings
Environmental considerations
F
Failure Mode
Change switch position
Switch
. . . . . . . . . . . . . . . 2-16
Failure mode
. . . . . . . . . . . . . 2-12
Field Wiring
. . . . . . . . . . . . . . 2-12
Diagrams
. . . . . . . . . . . . . 2-13
Sensor connections
G
General considerations
Grounding
. . . . . . . . . . . . . . . . 3-2
H
Humidity
244EC, limits for
Transmitters
I
Inputs
RTD or Ohm
Thermocouple or Millivolt
Installation
. . . . . . . . . . . . . . . 2-1
Existing threaded sensor
Flowchart
Head mount transmitters
DIN plate style sensor
Threaded Sensor
Mounting to a DIN rail
Procedures
Configuration software
Interface
Multichannel
Transmitter
Rail clip hardware
Rail mount transmitters
Integral mount sensor
Threaded sensor
Tools
. . . . . . . . . . . . . . . . . 2-2
Installation Drawings
Intermittent Sensor Algorithm
Advanced feature
Case Examples
Damping
. . . . . . . . . . . . . . 3-7
Implementation
Introduction
. . . . . . . . . . . . . . . 1-1
L
Locations Certifications
M
Maintenance
. . . . . . . . . . . . . . 4-1
Manual Overview
Manual Supplement
Mechanical considerations
Mounting
. . . . . . . . . . . . . . . . . 2-3
Special
. . . . . . . . . . . . . . . 2-4
Mounting Considerations
Existing threaded sensor
Mounting to a DIN rail
O
Operation
. . . . . . . . . . . . . . . . 3-1
Ordering
Information
Ordering Information
Accessories
Configuration Interface
Table
. . . . . . . . . . . . . . . . A-6
P
Power Supply
,
Grounding
Surges
. . . . . . . . . . . . . . . .3-1
Transients
Process variable
Viewing
. . . . . . . . . . . . . . .3-5
S
Sensor Connections
Diagram
. . . . . . . . . . . . . .2-15
RTD or Ohm
Thermocouple or Millivolt
Sensor Terminals
Software
Installation
Requirements
Screen conventions
Troubleshooting
Specifications
Configuration interface
Transmitter
Functional
Performance
Physical
Stability
. . . . . . . . . . . . . . . . . A-2
Surges
Electrical considerations
T
Tagging
. . . . . . . . . . . . . . . . . . A-8
Temperature
Rise vs. extension length
Transients
Electrical considerations
Troubleshooting
Software
. . . . . . . . . . . . . . .4-1
U
Using This Manual
W
Weight