Universal dew point sensor for compressed air, with display — FA 400
FA 400 Specification
Available on request
Delivery across Russia
Order phone: +7(800)777-18-50
Description
The FA 400 dew point sensor is a device for measuring the dew point temperature in compressed air environments. It is ideal for use in refrigerated, adsorption, and membrane dryers.
The device can measure the dew point even in extremely dry air (down to -80°CTd). The sensor is equipped with both an analog 4...20 mA output and a signal relay, the threshold value of which can be easily and freely set by the user directly from the device display. The sensor is available in versions with different measurement ranges (-80...+20°CTd, -60...30°CTd, -20...+50°CTd).
The sensor display can show not only the dew point temperature value but also humidity and temperature parameters. The sensor can operate at pressures up to 50 bar, and a special version of the device is also available for measurements at pressures up to 350 bar.
An accessory available is a measuring chamber equipped with a quick-release connection. The FA 400 dew point sensor is quite durable (IP 65), reliable, and also has excellent long-term stability characteristics.
ATTENTION, the device has been discontinued. The modern equivalent is — FA 500
- Specifications
- Overall Drawing
- Connection diagram
- Applications
| Technical Specifications FA 400 | |
| Measurement Ranges | -80...20 °Ctd, -60...30 °Ctd -20...50 °Ctd 0...100% RH |
| Accuracy | ±1°C at 20...-20°Ctd ±2°C at -20...-50°Ctd ±3°C at -50...-80°Ctd |
| Operating Pressure | -1...50 bar special version up to 350 bar |
| Power Supply | 24 VDC (16...30 VDC) |
| Protection Class | IP 65 |
| EMC | according to DIN EN 61326 |
| Operating Temperature | -20...50 °C |
| Electrical Connection | 2 x M12, 5-pin, for power supply and relay outputs |
| PC Connection | SDI interface |
| Outputs | 4...20 mA = -80...20°Ctd 4...20 mA = -60...30°Ctd 4...20 mA = -20...50°Ctd |
| Analog Output Load | <500 Ohm |
| Signal Relay | normally open, max. 60 VDC, 0.5 A |
| Process Connection | G 1/2“ |
| Dimensions | Ø 65 mm, length 160 mm |
| Units of Measurement when Receiving Data via Software | % RH, °Ctd, g/m³, mg/m³, ppm V/V |
| Connector A | Connector B |
 |
|
|
Pin Number |
Pin Color |
Designation |
Designation |
|
Pin 1 |
brown |
SDI |
NC |
|
Pin 2 |
white |
-VB |
NC |
|
Pin 3 |
blue |
+VB |
NC |
|
Pin 4 |
black |
I+ |
REL |
|
Pin 5 |
gray |
NC |
REL |
| Designation | Comment |
| SDI | Digital signal |
| -VB | Power supply negative 0 V |
| +VB | Power supply positive 16...30 VDC |
| +I | Positive signal 4...20 mA |
| NC | No connection |
| REL | Relay output |
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