Siemens SENTRON PAC4200 Manual page 155

Power supply
Design of the power supply.
Rated range
Work area
Power consumption
Overvoltage category
Battery
Types
Nominal voltage
Nominal discharge current
Minimum permissible reverse current to the
battery
Ambient temperature
Service life
Retention of data and time of day in the absence of the supply voltage
The backup time after 5 years operation is approximately 2 months under the following
conditions: 2 months backup time per year at 23°C, 10 months continuous operation per
year at the maximum permissible ambient temperature.
Memory
The long-term memory is sufficient to save up to four measured variables and their extreme
values every 15 minutes for 40 days.
SENTRON PAC4200
Manual, 09/2008, A5E02316180B-01
Without expansion module
With 2 expansion modules
Wide-voltage power supply AC / DC
95 ... 240 V AC (50/60 Hz) or
110 ... 340 V DC
± 10% of AC/DC rated range
Typically 11 VA AC, 5.5 W DC
Max. 32 VA AC, max. 11 W DC
CAT III
BR2032
CR2032
(not rechargeable)
Approved in accordance with UL1642
3 V
0.2 mA
5 mA
The battery must be designed for at least 70°C.
5 years under the following conditions:
2 months backup time per year at 23°C,
10 months continuous operation per year at the
maximum permissible ambient temperature
Technical data
11.1 Technical data
155