Operating Instructions

Diagnostics and troubleshooting iTEMP TMT72
40 Endress+Hauser
Diagnostic
number
Short text Corrective measure
Status
signal
from the
factory
Customizable
1)
Diagnosti
c
behavior
from the
factory
Customizable
2)
Not
customizable
Not
customizable
402 Initialization active Initialization active, please wait. C Warning
410 Data transfer failed 1. Check connection.
2. Retry data transfer.
F Alarm
411 Up-/download active Up-/download active, please wait. C Warning
435 Linearization faulty Check linearization. F Alarm
485 Process variable simulation
active
Deactivate simulation. C Warning
491 Current output simulation
Deactivate simulation. C Warning
495 Diagnostic event simulation
active
Deactivate simulation. C Warning
531 Factory adjustment missing 1. Contact service.
2. Replace device.
F Alarm
537 Configuration 1. Check device configuration
2. Upload and download new configuration.
(In case of current output: check
configuration of analog output.)
F Alarm
582 Sensor diagnostics TC
deactivated
Switch on diagnostics for thermocouple
measurement
C Warning
Diagnostics for the process
801 Supply voltage too low
3)
Increase supply voltage. S Alarm
825 Operating temperature 1. Check ambient temperature.
2. Check process temperature.
S Warning
844 Process value outside
specification
1. Check process value.
2. Check application.
Check sensor.
S Warning
1) Can be set to F, C, S, M, N
2) Can be set to 'Alarm', 'Warning' and 'Disabled'
3) In the case of this diagnostic event, the device always outputs a "low" alarm status (output current ≤ 3.6 mA).
9.7 Firmware history
Revision history
The firmware version (FW) on the nameplate and in the Operating Instructions indicates
the device release: XX.YY.ZZ (example 01.02.01).
XX Change to main version. No longer compatible. The device and
Operating Instructions change.
YY Change to functions and operation. Compatible. The Operating
Instructions change.
ZZ Fixes and internal changes. No changes to the Operating Instructions.