Battery Usage
38
VAISALA
Units and Temperature
Use the
Options
menu to set the measurement units you
want to display on screen.
To change display units:
On the
Options
tab, select
Units.
Connection Performance
Consistent connection performance is essential for longevity
of battery life. The HMT140 Utility can perform a test to
indicate how well the HMT140 connects to the network,
which provides an indication about the expected battery life.
To perform the test, see page 43.
Note:
If the average connection time is more than five
seconds, the HMT140 may not connect consis-
tently and the battery may be exhausted before
the battery meter indicates.
Connect Times
The following are the components of the connect time:
Determining Connection Problems
In some networks, one of the optional components of the
connect time may take too long to perform on a consistent
Description Option
802.11 b
(sec)
802.11g
(sec)
Cache/
Noncache
HMT140 Startup
No
2
0.1
Auto Find Channel
Yes
1
0.1
Associate/
Authentication
No
< 1
< 1
DHCP lookup
Yes
< 1
< 1
DNS lookup
Yes
< 1
< 1
Summary of Contents for HUMICAP HMT140
Page 1: ...86 5 6 GUIDE Vaisala HUMICAP Humidity and Temperature HMT140 Wi Fi Data Logger M211488EN E...
Page 10: ...Regulatory Compliances 6 VAISALA...
Page 16: ...Introduction to the HMT140 12 VAISALA...
Page 26: ...Wiring Diagrams M211488EN E 23...
Page 56: ...Appendix Specifications and Troubleshooting 54 VAISALA HMT140 Dimensions Fixed Probe...
Page 57: ...M211488EN E 55 HMT140 Dimensions Remote Probe...
Page 70: ...www vaisala com M211488EN...
