ST400 & ST400M Portable Meter
EN-5
Controls
button
Press & release
Press & hold for 3
seconds
Exit and return to
measurement screen
Meter turn on/turn off
Start calibration
Start or stop measurement
- Store current reading to
memory
- Scroll up through the memory
- Switch pH and conductivity*
- confirm setting
Enter setup mode
- Increase value during setting
- Decrease value during
setting
- switch between Conductivity,
TDS, Salinity and Resistivity*
- switch between pH and mV
*Only applies to ST400M
Содержание ST400
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