Change Status (Release); Software History; Technical Data; Power Supply - Endress+Hauser Flowphant T DTT31 Operating Instructions Manual

Technical data

8. 4 Change status (release)

The release number on the nameplate and in the Operating Instructions indicates the change
status of the device: XX.YY.ZZ (example 01.02.01).
XX
YY
ZZ

8. 5 Software history

Date
02.2006
12.2006
9 Technical data

9. 1 Power supply

Supply voltage
• DC voltage version 18 to 30 V DC
Current consumption
• < 100 mA (open-circuit operation) at 24 V DC, max. 150 mA (open-circuit operation); with
reverse polarity protection
Power supply failure
• Behavior in case of over voltage (> 30 V)
The device works continuously up to 34 V DC without any damage. No damage is caused to
the device in case of a short-term over voltage up to 1 kV (as per EN 61000-4-5). If the supply
voltage is exceeded, the properties specified are no longer guaranteed.
• Behavior in case of under voltage
If the supply voltage drops below the minimum value, the device switches off (status as if not
supplied with power = switch open).
30
Change in the main version.
Compatibility no longer provided. Device and Operating Instructions change.
Change in functionality and operation.
Compatibility provided. Operating Instructions change.
Troubleshooting and internal modifications.
Operating Instructions do not change.
Software version
01.00.00
01.00.03
Software modifications
Original
firmware
Analog output version
(4 to 20 mA) available
DTT31, DTT35
Documentation
BA218r/09/en/02.06
(71022232)
BA235r/09/en/12.06
(71036991)
Endress+Hauser