Chapter 4 ________________________________________________________________ Operation  
VAISALA_______________________________________________________________________ 73 
Restoring the default output message (depends on the device 
configuration) and output example: 
>FORM / 
Output format  : QNH \T QFE \R \N 
>SEND 
 999.88   999.88 
> 
Displaying information on supported parameters (depends on the 
device configuration, see Table 14 on page 72): 
>FORM ?? 
P P3H P1 P2 P3 DP12 DP13 DP23 HCP QFE QNH TP1 TP2 TP3 A3H 
Additional parameters 
#T, #R, #N, #RN, Un, n.n, CS2, CS4, CSX, SN, ERR, PSTAB, ADDR, DATE, TIME 
> 
UNIT 
Use the UNIT command to display or set the output quantities and 
their units. 
Table 15  Output Quantities and Units 
Quantity  Output Quantity  Available Output 
Units 
Pressure (measures 
average pressure from 
P
1
, P
2
, and P
3
) 
P 
Pressure from 
barometer module 1 or 
2 or 3 
P
1
, P
2
, and P
3
 
Pressure trend  P
3h
 
Pressure difference (P
1 
-P
2
)  
ΔP
12
 
Pressure difference (P
1 
-P
3
)  
ΔP
13
 
Pressure difference (P
2 
-P
3
)  
ΔP
23
 
QNH pressure  QNH 
QFE pressure  QFE 
Height Corrected 
Pressure  
HCP 
hPa, psi, inHg, torr, bar, 
mbar, mmHg, kPa, Pa, 
mmH
2
O, inH
2
O 
Temperature of 
barometer module 1 or 
2 or 3 
T
P1
, T
P2
, and T
P3
  °C, °F, K