MEASUREMENT ACCURACY AND RELIABILITY

AirChip 3000 Functions

Description

Humidity / temperature adjustment

•1-point or multi-point humidity calibration or adjustment

•1-point or 2-point temperature calibration or adjustment

•Generate a time stamp for calibrations and adjustments

•Retain and view last adjustment date and adjustment values

•Generate calibration and adjustment protocols

MEASUREMENT LOOP VALIDATION

AirChip 3000 Functions

Description

Simulator mode

Used to make the HF4 generate fixed values for the humidity, temperature and calculated parameter. Can be configured, enabled or disabled

DEVICE SAFEGUARDS

AirChip 3000 Functions

Description

Device write protection

Used to protect the HF4 with a password to prevent unauthorized digital access by a digital user. Can be configured, enabled or disabled

Internal menu access from keypad

Used to prevent accidental changes to the HF4 settings and temperature-humidity adjustment by disabling the MENU key on the optional keypad. Can be enabled or disabled

PROCESS PROTECTION / PROTECTION OF OTHER DEVICES

AirChip 3000 Functions

Description

Limit humidity output to 100 %RH

Used to prevent the humidity signal from exceeding 100 %RH when condensation forms on the sensor. Can be enabled or disabled

Out-of-limit value alarm

Used to specify the normal range for humidity, temperature and the calculated parameter depending on the user application. Can be configured, enabled or disabled

Out-of-limit values trigger a digital alarm which can be also be

seen on the optional display