Vaisala PTB330 User Manual
Page 131
Chapter 7 ____________________________________________________________ Technical Data
VAISALA ______________________________________________________________________ 129
Table 30
Relay Module
Operating temperature range
-40...+60 °C (-40...+140 °F
Operating pressure range
500...1300 mmHg
Power consumption @24 V
max 30 mA
Contacts SPDT (change over), for example,
Contact arrangement Form C
Imax
0.5 A 30 VDC
Safety standard for the relay component
IEC60950 UL1950
Storage temperature range
-55...+80 °C (-67...+176 °F)
3-pole screw terminal / relay
Max wire size
2.5 mm
2
(AWG14)
Table 31
RS-422/RS-485 Module RS485-1
Operating temperature range
-40...+60 °C (-40...+140 °F)
2-wire (1-pair + common) half duplex
Operating modes
4-wire (2-pair + common) full duplex
Operating speed max
115.2 kbaud
Bus isolation
300VDC
Power consumption
@ 24V
max 50 mA
External loads
standard loads
32 RL> 10kohm
Storage temperature range
-55...+80 °C (-67...+176 °F)
Max wire size
1.5 mm
2
(AWG16)