Instructions
OPERATION MANUAL
Technical changes reserved
0141 0316-224 02.12.2014
Humidity-Temperature probe with
standard Signal FF-GLT-Series
Mounting of measuring probes
Mounting should be done with the probe tube in downside direction to 
avoid mearuring error caused by self heating of the electronic circuit. 
Moderate ow in region of the probe is an advantage concerning 
response time and accuracy.
For mounting of external measuring probes, commercially available 
bayonet connectors or mounting anges can be used. Please ask for 
our accessories overview.
The probe is pressure tight up to 100 mbar. The probes are not suit-
able for compressed air with higher pressure.
For outdoor applications, a special weather protection housing with 
mast/wall holder as well as a hydrophobic PE sinter lter is recom-
mended. 
The projected measuring probe type -INT can be directly mounted on 
the ventilation ducts. Drill the holes with the help of enclosed drilling 
template, for the probe and two mounting screws. Directly mount the 
probe on the ventilation duct with a gasket in between. Alternatively, a 
mounting ange is available with clamping ring/clamping screws.
Drilling template for measuring amplier
Product variants
Type -INT 
The measuring probe is rmly anged on to the evaluation electronics. 
Other probe tube lengths (max. 500 mm) are available on inquiry.
Type -EXT
The measuring probe is connected to the evaluation electronics 
through a solidly mounted cable (approx. 1.5 m in stretched condi-
tion). The length L
B 
of standard model is around 100 mm. Probe tube 
length 150 mm and 200 mm are available at short notice.
Other lengths or special models e.g. pressure resistant humidity 
probe with ½“ mounting threads are available on enquiry.
Type -AF
Model for wall mounting, for example, as external probe, the measur-
ing probe is horizontally anged (at the front side) to the evaluation 
electronics. Probe tube length is around 70 mm.
B+B Thermo-Technik GmbH | Heinrich-Hertz-Straße 4 | D-78166 Donaueschingen 
Fon +49 771 83160 | Fax +49 771 831650 | info@bb-sensors.com | bb-sensors.com
3 / 7







