Attention:
Humidity sensor HMT333 is permantly installed in both aircraft as part of the Basic Meteorology module. Additionally, the humidity sensor is installed in nose booms used for turbulence measurements.
Summary
The setra 239 model is used for measuring differential pressure for the basic meteorology at the nose of the aircraf. Additionally, it is used with the Turbulence Noseboom where setra239 transducers are connected to a 5-whole probe. The Model 239 is a transducer designed for extremely low pressure ranges (+/- 2.7 inch WC) and a wide temperature range (-18 to +80°C).
| Manufacturer | setra |
|---|---|
| Model | 239 |
| Serial No. | n/a |
| Type | pressure sensor |
Contacts
| Name | Institution | Role |
|---|
Available devices and Specifications
HMT333 consists of a sensor unit place in a Rosemount housing on the aircraft skin or the skin of the turbulence nose boom, respectively. The humidity transmitter connected to the sensor is installed inside the nose pylon or the nose boom.
| Name | Model | Type |
|---|---|---|
| Differential pressure transducer | 239 (0-30 INWC) | pressure sensor |
| Differential pressure transducer | 239 (0-30 INWC) | pressure sensor |
| Differential pressure transducer | 239 (0-30 INWC) | pressure sensor |
| Differential pressure transducer | 239 (0-30 INWC) | pressure sensor |
| Differential pressure transducer | 239 (0-30 INWC) | pressure sensor |
| Differential pressure transducer | 239 (0-30 INWC) | pressure sensor |
| Differential pressure transducer | 239 (0-30 INWC) | pressure sensor |
| Differential pressure transducer | 239 (+/- 7,5 INWC) | pressure sensor |
| Differential pressure transducer | 239 (+/- 7,5 INWC) | pressure sensor |
| Differential pressure transducer | 239 (+/- 7,5 INWC) | pressure sensor |
| Differential pressure transducer | 239 (+/- 7,5 INWC) | pressure sensor |
| Differential pressure transducer | 239 (+/- 7,5 INWC) | pressure sensor |
| Differential pressure transducer | 239 (+/- 7,5 INWC) | pressure sensor |
| Differential pressure transducer | 239 (+/- 7,5 INWC) | pressure sensor |
| Differential pressure transducer | 239 (+/- 7,5 INWC) | pressure sensor |
Specifications of HMT333 (without mounting)
Dimension (L x W x H) |
183 x 119 x 77 mm |
|---|---|
Weight |
~2 kg (incl. sensor) |
Power Supply |
10 - 35 VDC |
Data interface |
analogue data (mA) |
Position
| Origin Description: | Setra 239 differential pressure transducer are installed in the nose pylon of the aircraft for the basic meteorology module as well as in the turbulence nose boom used for turbulence measurements. |
Data logging, storage and archiving
Logged parameter
| Parameter | Sensor Output Type | Unit |
|---|---|---|
| differential pressure | pressure | V |
Rawdata storage on board
Data archiving on land
DMS
Module name |
B712 Basic Meteorology, B719 Turbulence Noseboom 1, B851 Turbulence Noseboom 2 |
|---|---|
Device name |
Humicap |
Parameters |
ErrorText; Relative Humidity Raw [A]; Status; Temperature raw [A] |