Vaisala HMP240 User Manual
Page 40
HMP240
User's Guide
M210300en
38
>SERI O
changing parity only
4800 O 7 1 HDX
>SERI 600 N 8 1 F
changing all parameters
600 N 8 1 FDX
The processor does not allow the following combinations:
•
no parity, 7 data bits, 1 stop bit: if this combination is given the
HMP240 programme will change the number of stop bits to 2
•
even or odd parity, 8 data bits, 2 stop bits: if this combination is given
the programme changes the number of stop bits to 1
NOTE
The serial bus settings become effective only after reset.
When the half-duplex mode is set, it will automatically turn the echo off. Even
then the ECHO command can indicate that echo is on.
5.4.2.6
Selecting the output units
UNIT x
x =
m(etric units)
n(on-metric units)
metric
non-metric
RH
%RH
%RH
T
°C
°F
Td
°C
°F
dT
°C
°F
a
g/m
3
gr/ft
3
x
g/kg
gr/lb
Tw
°C
°F
5.4.2.7
Setting the averaging time
Disconnect the security lock jumper!
FILT nnnn
nnn
=
averaging time (0 - 1024 seconds)
This command is used to set and inspect the averaging time during which the
individual measurement samples are integrated to get an averaged reading.