2000 hours of operation life guarantees maintenance free use without the need for frequent battery changes or re-charges. On-site measurements in production and in agriculture, can subject instrumentation to harsh conditions. Dust, humidity and condensation associated with use in production, will damage a meter, rapidly deteriorating its performance and shortening its life. 9210N heavy-duty pH meter is designed to provide laboratory results and accuracy under harsh industrial conditions. The electrode signal is also pre-amplified and strengthened to give you better protection against noise and electromagnetic interference, a common phenomenon in industrial applications.
Calibration is manual and the trimmers are placed behind protective cover.
This assures that the unit can be calibrated at any pH buffer value. The protective cover also keeps the meter watertight and prevents the calibration to be tampered with. Even though the HI 9210N 's battery life is an incredible 2000 hours, a low-voltage indicator appears on the screen to alert the user that there is only 20 hours of battery life left. Inc. All Rights Reserved.