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Vaisala HMP Series - Page 107

Vaisala HMP Series
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Compensation setpoints
821 0334
hex
Temperature compensation
setpoint. If a value is written
to this register, probe uses it
instead of its own
temperature measurement.
When condensation
prevention warming is active,
temperature must be written
to this register to enable
output parameters that
depend on temperature
measurement (for example,
relative humidity).
32-bit float Unit: °C
0335
hex
Purge
773 0304
hex
Purge interval 32-bit float Unit: min
10 ... 14400
0305
hex
1283 0502
hex
Interval purge on/o 16-bit boolean 0 = O
1 = On
1284 0503
hex
Startup purge on/o 16-bit boolean 0 = O
1 = On
Filtering
795 031A
hex
Measurement filtering factor 32-bit float Range: 0.000 ... 1.000
1.000 = Reading shows
100% of the most
recent measured value
(no filtering, default)
0.01 ... 0.99 = Reading
shows 1 ... 99% of the
most recent measured
value and part of the
previous reading
(filtering is applied).
For example, "0.9"
means that the filtered
measurement reading
= 90% of the most
recent measured value
+ 10% of the previous
reading.
031B
hex
Appendix A – Modbus reference
105

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