Honeywell STT850 Series User Manual

Revision 4.0 STT850 Series HART/DE Option User’s Manual Page 95
9.3 DE Diagnostic Message
Table 28 – DE Diagnostic Messages
Critical Diagnostics
(Failure Conditions)
Non-Critical Diagnostics (Warning Conditions)
Temperature Sensor Module
Failure
Excess Cal Correct
(Excess LRV Correct and/or Span correct for Sensor Input 1)
Sensor Input 1 Failure
Input 1 Out of Range
(Sensor Input 1 Under Range or Over Range)
Sensor Input 2 Failure
Input 2 Out of Range
(Sensor Input 2 Under Range or Over Range)
Communication Module Failure
Sensor Module Over Temperature
Sensor Comm. Timeout
Cold Junction Out of Range Error
Sensor Input 1 Open
Sensor Input 2 Open
Sensor Input 1 TB6 Open
Sensor Input 2 TB8 Open
No Factory Calibration
Supply voltage Fault
(External Supply voltage Fail)
Communication Module Over Temperature
No DAC compensation
Unreliable communication between Sensor and Comm
Modules
Display NVM fault

Honeywell STT850 Series Specifications

General

Brand	Honeywell
Model	STT850 Series
Category	Transmitter
Language	English