Vaisala AWS330 - Manual (Page 250)

User's Guide ______________________________________________________________________
248 _________________________________________________________________ M211296EN-B
Power Supply Accessories
Battery
Table 80 26 Ah Backup Battery Specifications
Property Description/Value
Type Sealed,
lead-acid
Nominal voltage 12 V
Nominal capacity 26 Ah
Self discharge 3% per month
Expected lifetime 4 … 5 years
Dimensions w × d × h 166 Ч 176 Ч 128 mm
(6.5 Ч 6.9 Ч 4.9 in.)
Weight 8.1 kg
Local Line Surge Protector QSA224DC
Table 81 Local Data Output/Ultrasonic Wind Sensor WMT703
Surge Protector QSA224DC Specifications
Property Description/Value
Interface RS-485,
RS-232
Data speed Up to 115 kBps
Protection level with 8/20 μs voltage
pulse
Between signal lines
(differential mode)
Between signal lines and PE
(common mode)
<32.5 V
<32.5 V
Surge current handling capability
(1 x 8 / 20 μs pulse) 120 A
AC Power Surge Protector PT 2PE/S-230AC-ST
Table 82 AC Power Surge Protector Specifications
Property Description/Value
Nominal voltage
230 VAC
Maximum AC current 26 A
Protection level with 1.2 / 50 μs and
6 kV voltage pulse
Between N-PE and L-PE
Between N and L
1.5 kV
<1.1 kV
Surge current handling capability
(1 x 8 / 20 μs pulse) 10 kA
Approvals CSA or UL