Monitor and maintain critical atmospheric conditions with an integrated system featuring bi-directional pressure sensing, ambient temperature measurement, relative humidity tracking, and local relay control.
Maintaining precise atmospheric gradients in controlled environments is a critical requirement for process engineers and laboratory managers who must ensure sterility or containment. In cleanroom applications, the ProSens serves as a centralized intelligence hub by integrating a high-performance temperature and relative humidity probe directly into a wall-mounted chassis. This configuration utilizes a 316L stainless steel radial probe protected by a specialized filter, ensuring that the sensitive electronic components remain shielded from particulates while providing rapid response times to subtle shifts in moisture or thermal levels. For facilities requiring pressurized isolation, the system incorporates the DPS 300 to monitor bi-directional differential pressure. Specifically scaled from -1.5 to +1.5 mbar, this sensor identifies minute pressure differentials between the internal room and external corridors, providing a 4-20mA signal that allows for the detection of air ingress or egress that could compromise the sterile boundary.
The integration of these two instruments facilitates localized automation through the dual normally open relay contact switches housed within the ProSens series. These relays can be programmed to trigger specific HVAC responses, such as activating supplementary humidification units, adjusting fan speeds for pressure compensation, or initiating cooling cycles when thermal thresholds are breached. Beyond the standard climate parameters, the inclusion of a secondary universal input allows research engineers to bridge additional instrumentation—such as CO2 sensors or oxygen depletion monitors—into the same local interface. This data is rendered on a high-contrast 2.9″ LCD, which provides the facility’s instrument technicians with immediate visual confirmation of the room status, including bargraph representations of the pressure gradient.
For large-scale industrial installations, the ProSens utilizes a Modbus RTU interface over an RS-485 serial connection, permitting seamless integration into a Building Management System (BMS) or a centralized data logging server. This digital connectivity ensures that all parameters, from the FSO-accurate pressure readings of the DPS 300 to the integrated climate data, are accessible for remote monitoring and historical auditing. The physical installation is designed for durability in regulated environments, featuring an ASA LURAN housing that resists common cleaning agents and offers IP65 protection. The use of barbed process connections on the pressure transmitter simplifies the attachment of flexible tubing, making it an ideal solution for retrofitting existing cleanroom panels where space is at a premium and high-accuracy, low-range measurement is non-negotiable.
Prosens Climate Monitor & Controller
- Part Number: QM-212-00-0-3-1-11-1-10-3-3
- Probe Version: Radial, Ø18mm, L=90mm
- Connector & Cable Type: None (when Radial probe supplied)
- Cable Length: None (when Radial probe supplied)
- Measurement 1: Temperature & Humidity Probe (supplied & installed)
- Measurement 2: Universal input (I, U, RTD, TC)
- Output Option: 2 electronic NO relays, 24V AC/35V DC, max. 200 mA
- Display: 2.9″ LCD, 128 x 64 pixels with backlight
- Number of Cable Glands: 3pcs
- Power Supply: 24V DC (11 ÷ 36V DC), power consumption: 2.5 W max
- Communications Interface: RS-485, 8N1 and 8N2, 1200 bit/s ÷ 115200 bit/s, Modbus RTU, not galvanically isolated
- Operating temperature range: -30°C ÷ +80°C, case with electronics (out of range -20 ÷ +70°C LCD and IR receiver turn off)
- IP Protection Class: IP 67 (version without display); IP 65 (version with display)
- Case: Wall mounted, 120 x 90 x 50 mm, ASA LURAN
DPS 300 Room Pressure Sensor
- Part No: 815-0016-1-0-G-0-1-Y00-M-000
- Pressure Range: 0 – 1.6
- Factory Set Scaling: -1.5 to + 1.5
- Units: mbar
- Range Type: Bi-Directional Differential (-P to +P)
- Output Signal & Supply Type: 4-20mA 2 wire
- Output Options: Linear
- Switch Contacts: None
- Accuracy (linearity only): 1% full scale
- Electrical Connection: M16 x 1.5 cable gland
- Process Connection: 6.6mm dia x 11mm barbed connections
- Media Compatibility: Air