comparing it to other watches is not a good practice. u've gotta compare it with some kind of calibration reference, which is certified to be accurate.............I noticed that the temperature reading of the Riseman is considerably off from those of my DW-9600 and PRT-60 (10 years old, two battery replacements each), somewhere around 2-4°C at normal room temperatures...........
thats right :-!good point,
its often far more interesting to see the specific trend, than to be accurate down to one 1hpa (though thats very nice).
Just wonders, has it been confirmed yeat that the Riseman's barometer is not temp compensated?due to air pressure rise/drop, I calibrate the altimeter every morning, sometimes 3-5 times per day if necessary.
the barometer is affected by temperature changes and therefore pointless to calibrate. however, if you wear the watch and keep temperature roughly between 22 - 32° celsius, a change won't be necessary. it might will be off sometimes by 1 or 2 millibars (hpa) but thats it. if the watch is not worn (e.g. attached to a backpack) and is exposed to the bright hot sun, - or opposite - to the cold air, you will have to add/subtract a few millibars by the rule of thumb, therefore its best to keep it onto your wrist.
well, the GW-9200 seems to have kind of a temp compensation, but it works rather slowly and only in a certain temperature scale. that means give it enough time to acclimate and it will come back spot on, as long as it was worn on your wrist and kept above 22° and under 33°.Just wonders, has it been confirmed yeat that the Riseman's barometer is not temp compensated?
Apprently the PRG-80 seems to have it while the new PAW-1300 and 1500 does not... But perhaps the Riseman does?