Siemens SITRANS LG250 Operating Instructions Manual page 75

Display and adjustment module
Display element
Measured value indication
Ʋ Number of digits
Ʋ Size of digits
Adjustment elements
Protection rating
Ʋ unassembled
Ʋ mounted in the housing without lid
Materials
Ʋ Housing
Ʋ Inspection window
Integrated clock
Date format
Time format
Time zone Ex factory
Rate deviation max.
Additional output parameter - Electronics temperature
Output of the temperature values
Ʋ Analogue
Ʋ Digital
Range
Resolution
Accuracy
Voltage supply
Operating voltage U
B
Ʋ Non-Ex instrument, Ex-d instrument
Ʋ Ex ia instrument
Ʋ Ex-d-ia instrument
Ʋ Ex-d-ia instrument with ship approval 15 ... 35 V DC
Operating voltage U
B
Ʋ Non-Ex instrument, Ex-d instrument
Ʋ Ex ia instrument
Ʋ Ex-d-ia instrument
Reverse voltage protection
Permissible residual ripple - Non-Ex, Ex-ia instrument
Ʋ for 9.6 V< U < 14 V
B
Ʋ for 18 V< U < 36 V
B
PBD-51041387
Display with backlight
5
W x H = 7 x 13 mm
4 keys
IP 20
IP 40
ABS
Polyester foil
Day.Month.Year
12 h/24 h
CET
10.5 min/year
Via the current output
Via the digital output signal - depending on the electron-
ics version
-40 ... +85 °C (-40 ... +185 °F)
< 0.1 K
±3 K
9.6 ... 35 V DC
9.6 ... 30 V DC
15 ... 35 V DC
- illuminated display and adjustment module
16 ... 35 V DC
16 ... 30 V DC
No lighting (integrated ia barrier)
Integrated
≤ 0.7 V
≤ 1.0 V
SITRANS LG250 - Operating Instructions
(16 ... 400 Hz)
eff
(16 ... 400 Hz)
eff
75