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Negative room pressure monitor and logger for multiple zones

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We are looking to establish negative room pressure inside each of five interior zones to eliminate the spread of dust.  The rooms will be sealed and each one will have an air scrubber vented to an adjacent room.  We will need to monitor the pressure difference inside and outside the protected area to ensure a negative room pressure is being maintained within each room.  Ideally we would want a centralised monitoring instrument with the ability to log the negative room pressure data for downloading to a computer. We would also like the capability to produce a graphical record of the negative room pressure trend, which can be printed out and submitted as a report. What product would you suggest for this application?

We would suggest the DPS which is a low range differential pressure sensor specifically designed for monitoring negative room pressures.  Each DPS sensor can be connected to the CMC141 which is a multi-channel indicator and data-logger.  The CMC141 includes 1.5 GB of internal memory and a graphic display which can be configured to show each pressure reading on the same screen.  The CMC141 comes with software for transferring the internal pressure log to a computer.

DPS negative room pressure sensor

Contents

  • DPS Negative Room Pressure Sensor
  • CMC-141 Multi-Channel Indicator and Data Logger

DPS Negative Room Pressure Sensor

  • Part No: 20-0-0500-1-1-8-Y00-10
  • Pressure Datum: Differential Pressure
  • Pressure Range: 0 – 50 Pa
  • Power Supply: 12 – 32V dc / 2-wire
  • Output: 4 – 20mA / 2-wire
  • Accuracy: <±1% / FS (BFSL)
  • Mechanical Connection: 6.6mm x 11 (for flex. tubes ∅6)
  • Options 1: LC Display 3 1/2 digits
  • Options 2: None
  • Electrical Connection: PG7 gland, screw terminals max 1.5mm
  • Process Connection Material: Aluminium
  • Seal Material: Silicon rubber
  • Wetted Materials: Ni, CuBe, Pu
  • IP Rating: 54
  • Thermal Errors (TZS & TSS): ±0.03% FSO / °C
  • Media Temperature: +10 to 50°C
  • Operating Temperature: +10 to 50°C
  • Housing Material: ABS shock resistant

Multichannel monitor and logger

CMC-141 Multi-Channel Indicator and Data Logger

  • CMC99 specification data sheet
  • Part No: CMC-141-4-2-S8-I16-E-0B1
  • Slot P – Power Supply: 85V…260V AC/DC
  • Slot D – Interface Port: ACM Module
  • Slot C: 8 x SSR Outputs
  • Slot B: 16 x current input
  • Slot A: Empty
  • Extra Options: Front USB Host (IP40)
  • Display: 5.7″ Graphic TFT, 16-bit colour touchscreen
  • Transducer Power Supply: 24 V DC±5% / 200 mA max.
  • Communications interface: RS-485 (Modbus RTU), 1 x USB Host, USB Device
  • Operating Temperature: 0 to +50°C
  • Case Style: Panel Mount
  • Case Dimension: 144 x 144 x 100mm
  • Panel cut-out dimensions: 138.5 x 138.5mm
  • Installation Depth: 102mm min.
  • Internal Memory: Internal 1.5 GB, over 50 days (250,000,000 samples)
  • Digital inputs: 1 x 24V DC, optocoupled
  • Power Consumption: 15 VA typical; 20 VA max.

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