Data Sheet

12
sensing.honeywell.com
SENSOR REHYDRATION


 • Exposuretoelevatedtemperatures,suchasthose
experienced during solder reflow, may dry out the sensing
element. It is recommended that the sensor be allowed time
to rehydrate after soldering or other high temperature/dry
exposures.
 • Exposuretotheseconditionswillnotpermanentlydamagethe
sensor. It will generally return to its factory-calibrated value after
rehydration.
 • Ifrehydrationisnotperformed,thesensormayreadaslight
offset that slowly disappears over time as the sensor becomes
exposed to ambient conditions. Conversely, extended
exposure to condensing and high humidity environments
(>90%RH)maycausearevisableshiftinreadingswhichwill
generally return to normal after the sensor has been allowed to
dry off.
To rehydrate the sensor, expose it to room temperature under
ambientconditions(>50%RH)foraminimumoffivehours.

ThefollowingassociatedliteratureisavailableontheWeb:
• Productinstallationinstructions
• Productapplicationnote
• Applicationsheets:
– Humidity Sensor Performance Characteristics
 –HumiditySensorTheoryandBehavior
– Humidity Sensor Moisture and Psychrometrics
– Humidity Sensor Chemical Resistivity
 –ThermosetPolymer-BasedCapacitiveSensors
• TechnicalNotes:
– I
2
C Communication with the Honeywell HumidIcon™ Digital
Humidity/Temperature Sensors
– SPI Communication with the Honeywell HumidIcon™ Digital
Humidity/Temperature Sensors
 – UsingAlarmsontheHoneywellHumidIcon™Digital
Humidity/Temperature Sensors
 – EnteringandUsingCommandModeontheHoneywell
HumidIcon™ Digital Humidity/Temperature Sensors
HIH7000 Series • 

Honeywell warrants goods of its manufacture as being free of
defective materials and faulty workmanship. Honeywell’s standard
product warranty applies unless agreed to otherwise by Honeywell
in writing; please refer to your order acknowledgement or consult
your local sales office for specific warranty details. If warranted
goods are returned to Honeywell during the period of coverage,
Honeywell will repair or replace, at its option, without charge those
items it finds defective. 




Whileweprovideapplicationassistancepersonally,throughour
literature and the Honeywell website, it is up to the customer to
determine the suitability of the product in the application.
Specifications may change without notice. The information we
supply is believed to be accurate and reliable as of this printing.
However, we assume no responsibility for its use.
WARNING
PERSONAL INJURY
DO NOT USE these products as safety or emergency stop
devices or in any other application where failure of the
product could result in personal injury.
Failure to comply with these instructions could result in
death or serious injury.
WARNING
MISUSE OF DOCUMENTATION
• Theinformationpresentedinthisproductsheetisfor
reference only. Do not use this document as a product
installation guide.
• Completeinstallation,operation,andmaintenance
information is provided in the instructions supplied with
each product.
Failure to comply with these instructions could result in
death or serious injury.