Chapter 9. Features and Specifications
Model PM880 Portable Hygrometer User’s Manual 169
9.5 Operational
Site Parameter Programming
Menu-driven, graphic, operator interface uses keypad and sift-function 
keys. Online help functions. Memory storage for saving site parameters.
Data Logging
Memory capacity to log over 100,000 moisture data points. Programmable 
keypad for log units, update times, and start and stop times.
Display Functions
Displays measurements and logged data in alphanumeric or graphical 
format. Language options: Dutch, English, French, German, Italian, 
Portuguese, Russian, Castilian Spanish, Latin-American Spanish and 
Swedish.
Display Units
• Moisture: DP temperature, ppm
v
, ppm
w
, %RH, lb/MMSCF and others.
• Temperature: °F, °C and °K
• Pressure: psig, bar, kPa (gauge), kg/cm
2
 (gauge) and others