Vaisala HMT330 - Manual (Page 179)

Chapter 8 _____________________________________________________________ Technical Data
VAISALA _______________________________________________________________________ 177
RS-485 Module
Operating temperature range -40 ... +60 ºC (-40 ... +140 ºF)
Operating modes 2-wire (1-pair) half duplex
4-wire (2-pair) full duplex
Operating speed max 115.2 kbaud
Bus isolation 300VDC
Power consumption at 24V max 50 mA
External loads
standard loads 32 RL> 10kohm
Storage temperature range -55 ... +80 ºC (-67 ... +176 ºF)
Max wire size 1.5 mm
2
(AWG16)
LAN Interface Module
Operating temperature range -40 ... +60 ºC (-40 ... +140 ºF)
Storage temperature range -40 ... +85 ºC (-40 ... +185 ºF)
Operating humidity range 5 … 95 %RH
Power consumption at 24V max 60 mA
Ethernet type 10BASE-T 100BASE-TX
Connector 8P8C (RJ45)
IPv4 address assignment DHCP (automatic), static
Protocols Telnet, Modbus TCP
Max number of Telnet/Modbus clients 1
WLAN Interface Module
Operating temperature range -20 ... +60 ºC (-4 ... +140 ºF)
Storage temperature range -40 ... +85 ºC (-40 ... +185 ºF)
Operating humidity range 5 … 95 %RH
Power consumption at 24V max 80 mA
Supported standards 802.11b
Connector RP-SMA
IPv4 address assignment DHCP (automatic), static
Protocols Telnet, Modbus TCP
Max number of Telnet/Modbus clients 1
Security WEP 64/128, WPA2/802.11i
Data Logger Module
Operating temperature range -40 ... +60 ºC (-40 ... +140 ºF)
Storage temperature range -55 ... +80 ºC (-67 ... +176 ºF)
Power consumption at 24V max 10 mA
Logged parameters up to four with trend/min/max
values for each
Logging interval 10 s (fixed)
Maximum logging period 4 years 5 months
Logged points 13.7 million points / parameter
Accuracy of the clock better than ±2 min/year
Battery lifetime
at -40 ... +30 ºC (-40 ... +86 ºF) 7 years
at +30 ... +60 ºC (+86 ... +140 ºF) 5 years