Setra's Humidity Sensor (SRH) family consists of a wall mount, duct mount, and outside air unit.
This product line is designed to complement Setra's pressure and current products while expanding
the solution opportunities for the HVAC/building automation market and other relative humidity
monitoring applications. All models feature removable sensor tips, NIST traceability, and a durable
capacitive sensor capable of full-scale 0 to 100% RH measurement.
The SRH product line offers accurate humidity with active or passive temperature sensing available
in ±2%, ±3%, or ±5% RH accuracy. Humidity transmitters configured with active temperature option
feature jumper- selectable Tspan ranges of 40°C, 50°C, and 60°C.
This product suite utilizes field-replaceable sensor tips that allow the end user to replace the
sensors on-site. This essentially eliminates time consuming and costly factory calibration, while
reducing downtime during service intervals. As an example, the duct mount probe is easily accessed
by taking off the front cover, pulling out the probe, and replacing the sensor tip. This further
contributes to a more user-friendly, lower cost product line that is focused on customer needs and ease of use.
Setra's humidity sensors are the ultimate product for any HVAC installation and, combined with our
pressure and current products, allow us to support a one-stop, single source for any customer. The SRH
line is a natural progression that grew out of our high quality line of pressure transducers that also
use the same unique ASIC coupled with a highly reliable capacitive sensor technology. This product line
marks the capstone in fulfilling a complete HVAC solution and boasts the same quality, delivery, and
innovation demanded of all Setra products.
Key component of comprehensive HVAC/R solution
The Setra humidity/temperature solution is an important part of our overall HVAC/R solution which also
includes pressure and current. This bundle of products has established Setra as a premiere HVAC manufacturer
and a full-solution player for HVAC customers.
Robust, proven capacitive sensor
The unique pairing of Setra's proven capacitance measurement technology with its custom ASIC (used in thousands
of pressure devices) ensures reliable measure of RH levels from 0 to 100%. As a result, customers will experience
better resistance to contamination, longer stability, and minimal drift.
Attractive/ low profile enclosures
Design and aesthetics have always been considered an important ingredient in any new Setra product. The humidity
family consists of three configurations: wall, duct, and outside air models. Great attention was given to the look
of the wall mount, ensuring that it complements the décor of any building. It is a space conscious unit that takes
up no more space than an electrical outlet. The duct and outside air models utilize a design that ensures ease of
both assembly and probe removal for recalibration.
Three levels of RH accuracy - 2%, 3%, and 5%
There are three levels of accuracy available for Setra humidity sensors: 2%, 3%, and 5%. The sensors should not drift
more than 1% annually but it is recommended that the sensor be checked each year to ensure high accuracy and dependability.
Model SRH Relative Humidity Transmitter Series for HVAC Building automation systems and other relative
humidity monitoring applications. The Model SRH humidity transmitters are available with optional
passive or active temperature sensing.
Applications for the Setra SRH Humidity Transmitter
- HVAC/R Control
- Indoor Air Quality (IAQ)
- Laboratories
- Antiquities Preservation
