ROTRONIC HF7 - Manual (Page 8)

E-M-HF7-V1_24
Rotronic AG
Bassersdorf, Switzerland
Document code Unit
HygroFlex HF7 Humidity Temperature
Transmitters: User Guide Instruction Manual
Document Type
Page 8 of 23
Document title
© 2009-2011; Rotronic AG E-M-HF7-V1_24
MEASUREMENT LOOP VALIDATION
AirChip 3000 Functions Description
► Simulator mode Used to make the HF7 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 HF7 with a password to prevent
unauthorized digital access by a digital user. Can be configured,
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
► Bad sensor alarm Built-in function. Cannot be disabled
A bad humidity or temperature sensor triggers a digital alarm
which can be also be seen on the optional display
► Fail safe mode Used to specify a "safe" fixed value for humidity and for
temperature in the event of a sensor failure. Can be configured,
enabled or disabled
4.2 Factory default settings
Notes:
o Configuration of the HF7 by the user and access to its functions requires a PC with the ROTRONIC HW4
software (version 2.1.1 or higher) installed. Service cable AC3006 or AC3009 is used to connect the HF7
service connector to a USB port of the PC (see Maintenance > Service Cable).
Configurable Settings
Applicability Factory default
Unit system (Metric or English) HF72, HF73 As per ordering code
Analog signal type (4…20 mA or other) HF73 As per ordering code
Psychrometric calculation HF72, HF73 As per ordering code
Output 1 parameter, scale and unit HF72, HF73 As per ordering code (%RH or DP)
Output 2 parameter, scale and unit HF72, HF73 Temperature, unit as per ordering code
Functions Applicability Factory default