User Guide

• Wait for the measurement
to stabilize (approximately
4 hours)
• Insert the probe in the "RH 75.4%" cham-
ber, the multimeter reading should be 16.06
mA: this represents the theoretical cham-
ber value of 75.4% RH.
• The relative humidity calibration checking
procedure is complete. If the theoretical
values are not within ±5%, contact your
dealer or your closest Hanna Service Cen-
ter for a fast and accurate recalibration.
Spare saturation salts are also available:
HI 7111/P (LiCl) for low range humidity, and
HI 7121/P (NaCl) for high range humidity.
12
3
6
9
4 h
mA