Dew point monitoring in the fruit and vegetable sector

1. APPLICATION

Dew point monitoring in the compressed air line to ensure the correct dryer operation and an automatic rinsing at companies in the fruit and vegetable sector.

A refrigeration dryer has a working point of between 3-5 ºC tdp. There are several matters that can cause an increase of the dew point value and which may result in water entering into the installation – and thus to considerable technical and economic problems.

By having a dew point sensor installed after the dryer, you can ensure that at the very same time at which an dryer problem occurs, you receive an alarm so that customer can act quickly before the water enters the installation.

[Translate to English:] Punto de rocío - Control de humedad en sector hortofruticula

The big problem in this sector is the users’ lack of awareness of the high costs arising by water entering the compressed air line.

Maintaining good air quality reduces costs for all pneumatic elements in the installation.

2. ADVANTAGES

There are following advantages:

Ensure the correct operation of the refrigeration dryer
Detect failures in automatic purges
Detect open or semi-open bypasses that allow the wet compressed air to pass through the dryer
Get an alarm at the same time when a problem occurs which causes a significant increase in the dew point.
Very important economic savings by controlling the correct degree of humidity in the compressed air system, avoiding:
- Stops of production lines
- Malfunctions in pneumatic elements such as magnet valve groups, cylinders, etc.
- Internal corrosion in the air pipes that can result to the system’s collapse
- Propagation of bacteria with high moisture content with the consequent risk for the consumer

3. WE RECOMMEND

DS-52 Dew point set – 0600 5120 with acoustic and visual alarm
DS-400 Dew point set – 0601 0512 with acoustic and visual alarm

Both kits are plug and play models, both include two alarm relays, the DS 400, being a more advanced device, is able to connect three more sensors and log their measured data.

4. MAIN FEATURES

Easy installation, plug and play, all fully wired
Two alarm relays
4-20 mA output signal
Fast response time
Possibility of data logging (DS 400)
Possibility of connection of up to 4 sensors (DS 400)
Ethernet option and RS485 interface (DS400)
Email alarms (webserver DS 400)

Dew point measurement set for refrigeration dryers - DS 52 set

Dew point measurement DS 52-set for refrigeration dryers

with the digital process meter DS 52 and the dew point sensor FA 510 with a measuring range from -20 to 50°Ctd.

Dew point measurement set for desiccant dryers - DS 52 set

Dew point measurement DS 52-set for desiccant dryers

with the digital process meter DS 52 and the dew point sensor FA 510 with a measuring range from -80 to 20°Ctd.

OEM dew point sensor for desiccant dryers

FA 505 - Dew point sensor for OEM applications

Extremely long-term stable dew point sensor for adsorption dryers