OHAUS ST400 Manuel D'instructions page 8

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