User manual

OPERATION MANUAL
Technical changes reserved
0141 0316-224 02.12.2014
Humidity-Temperature probe with
standard Signal FF-GLT-Series
Type INT
for duct mounting,
probe installed
Type EXT
with cable,
probe sold
Type AF
for wall mounting,
probe sold
Characteristic features
• Standard signal 0...10 V or 4...20 mA
• Linearised and temperature compensated humidity measurement
• High long term stability, innovative technique
• Probe with stainless steel housing 1.4571
• High quality housing enclosure IP 65
• Probe head with PE Sinter lter
Areas of application
• Building instrumentation
• Industrial measurement and controlling systems
• Meteorology
• Drying systems
Application range
In the area of building instrumentation, there is a requirement for
reasonably priced measuring probes which are suitable for continuous
operation and protected against over voltage and transients. Further
aspects are DC/AC supply, high long term stability as well as a good
measuring accuracy in the application. The B+B humidity probes of
-GLT series are developed for these requirements and are specially
suitable for application in this area due to the modern sensor technolo-
gy and innovative construction with an ASIC.
The measurement of relative humidity is done with a precise and long
term stable capacitive polymer sensor element with industrial rating.
The processing of measured value is linearised and temperature
compensated.For measurement of temperature (optional), a platinum
resistance is used whose values are also converted into a standard
signal. The voltage supply for the 0 ... 10 V model can be done alter-
natively with AC or DC supply. The 4... 20 mA model is meant for only
DC supply.The sensor which is made up of high quality stainless steel
has a ne pored PE protection lter and is made pressure tight (up to
500 mbar) against ambient pressure at the sensor head with a Teon
tube. Because of this, the probe can also be operated at pressure
difference and higher ow rates, for example in ventilation ducts.
Because of the large connecting area inside the housing and the
documented connecting clamps a fast connection is guaranteed.
Attention: Do not use the humidity-/ temperature probes in an envi-
ronment of aggressive or corrosive gases or steams.
Description
B+B Thermo-Technik GmbH | Heinrich-Hertz-Straße 4 | D-78166 Donaueschingen
Fon [phone] | Fax [phone] | [e-mail] | bb-sensors.com
1 / 7