Technical Data
A-3
MP270 Equipment Manual
Release 01/99
Keyboard
Type Membrane keyboard
System keys with dedicated functions 33 (3 with LEDs)
Function keys with configurable functions 36 (28 with LEDs)
Those usable as softkeys 20
Power supply
Rated voltage + 24 V DC
Permissible voltage range +18.0...+30.0 V DC
Max. permissible transients 35 V (500 msec)
Time between two transients 50 sec minimum
Power consumption
Typical
Max. constant current
Approx. 0.6 A
Approx. 0.9 A
Switch-on current I
2
t Approx. 0.5 A
2
s
Fuse, internal Electronic
Backup battery (option)
Type Lithium battery
Voltage/Capacity
2)
3.6 V/approx. 1.5 Ah
Service life > 4 years
2) Technical details subject to change without notice.
Ambient conditions
Location
Max. permissible angle of inclination
without external ventilation
vertical
"35°
Max. permissible ambient temperature
Operation
STN display TFT display
– Vertical installation
– Installation angled from the
perpendicular to max. 35°
0...+45 °C
0...+35 °C
0...+50 °C
0...+35 °C
Shipping, storage –20...+60° C
Relative humidity
Operation
Shipping, storage
20...85%, no condensation
5...85%, no condensation
Shock loading
Operation
Shipping, storage
15 g/11 msec
25 g/6 msec
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