Section 6 | Communications
©
2022
– Valeport Ltd
Page | 20
6.2 Data Output Format $PVHY2 (Post November 2020)
The Hyperion outputs a single NMEA style data string
– post November 2020 (Serial No: 75100)
this will be a $PVHY2 format string.
Example - Turbidity: $PVHY2,01,8,
0.48705
,
0.012
,NTU,
141.65588
,
0.023
,NTU,M1,*6D
Example
– Fluorometer: $PVHY2,01,
1,0.816
,
0.012
,ug/l,,,,C02,*24
Please note that fields with no data e.g. 2
nd
parameter data in a fluorometer will be empty but
delimited, as above.
Where:
Field
Number Description
Type
Description
1
NMEA Header
String
Valeport HYperion2
2
Instrument ID
Integer
Identifies the instrument
3
Parameter ID
Integer
1 = Chlorophyll a
2 = Fluorescein (Uranine)
3 = Rhodamine\Sulforhodamine B
4 = Crude Oil
7 = Phycocyanin (freshwater Blue Green Algae)
8 = Turbidity
4
1
st
Parameter Mean
Float
5
1
st
Parameter SD
Float
6
1
st
Parameter Units
String
ug/l for Chlorophyll a
NTU for turbidity nephelometer
4
2
nd
Parameter Mean
Float
5
2
nd
Parameter SD
Float
6
2
nd
Parameter Units
String
NTU for turbidity backscatter
7
Operating Mode
String
C02 (default)
8
Check Sum
Char
An exclusive OR sum between all characters
between the '$' and the '*'of the string
If the sampling that has been setup such that only one measurement is used to produce a reading
then no Standard Deviation is generated and the output becomes:
Turbidity - $PVHY2,01,8,
0.48705
,,NTU,
1.65588
,,NTU,M1,*6D
Fluorometer - $PVHY2,01,
1,0.816
,,ug/l,,,,C02,*24
Otherwise:
Turbidity - $PVHY2,01,8,
0.48705
,
0.012
,NTU,
141.65588
,
0.023
,NTU,M1,*6D
Fluorometer - $PVHY2,01,
1,0.816
,
0.012
,ug/l,,,,C02,*24
