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Clean Room Monitor for Air Differential Pressure, Temperature and Humidity – PMDS4

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Clean Room Monitor for Air Differential Pressure, Temperature and Humidity - PMDS4

The PMDS4 clean room monitor is designed for positive and negative monitoring of  differential air pressure between the inside and outside of a clean room.

Due to the construction of the device it is has a very slim profile and only requires a recess or cavity depth of 44mm to be installed directly into a wall partition between rooms or between a room and corridor.

Up to four additional sensors for monitoring temperature and humidity can be connected to the device and displayed simultaneously.

The calibration and adjustment is made simply by using the front panel controls.

Contents

  • Applications
    • Pharmacy
  • Specification
      • Measurement range
      • Measurement principle
      • Overpressure safety
      • Medium
      • Parts in contact with medium
      • Linearity
      • Hysteresis
      • Supply
      • Power consumption
      • Current Protection
      • Supply influence
      • Output signal
      • Resolution
      • Temperature drift
      • Temperature range
      • Humidity
      • Storage temperature
      • Long term stability
      • Housing
      • Panel
      • Pressure connectors
      • Electric outlet
      • Protection
      • Protection type
      • Standards
      • Weight
      • Impact strength
      • Sensor volume
      • Volume increase
      • Display
      • Zeroing
      • Option
      • Limit contacts
  • Product Help
    • DP included
    • Alarms for temperature & humidity
    • Dimensions of wall mounted clean room monitor
  • Related Documents
    • Specification data sheet
    • Operation manual

Applications

  • Clean room technology
  • Chemical industry
  • Medical technology
  • Filter technology
  • Hospital infection control

Pharmacy

Daily monitoring of temperature, humidity and air differential pressure between a clean room and anteroom, and between an anteroom and the rest of a pharmacy.

Specification

Measurement range

-1 to +1 hPa (other ranges on request)

Measurement principle

Inductive variation with diaphragm movement

Overpressure safety

  • Overpressure recognition
  • pos. overpressure +1,15hPa +/-0,075 hPa
  • neg. overpressure -1,15hPa +/-0,075 hPa
  • For differential measurements: Max. system pressure 1 bar (higher overpressure protection on request)

Medium

Air and other non aggressive gases

Parts in contact with medium

Ni, Al, CuBe, PU

Linearity

  • +/- 1% of f.v.
  • Option 1: +/- 0,5% of f.v.
  • Option 2+/- 0.2% of full scale; other ranges >= 2,5 hPa

Hysteresis

0.1% of full scale

Supply

  • 15 – 35 VDC
  • Option: 100 – 240 VAC (50 – 60 Hz)

Power consumption

6 VA

Current Protection

500 mA

Supply influence

< 0.05%

Output signal

  • 0 – 10 V (load <= 500 Ohm)
  • Option: 0- 20 mA, (0) 4- 20 mA (load <= 500 Ohm)

Resolution

12 Bit (4096 points)

Temperature drift

  • Zero point max. +/- 0,03%/K
  • Span max. +/- 0,03%/K

Temperature range

+15°C to + 50°C

Humidity

up to 80% relative humidity

Storage temperature

-10°C to + 70°C

Long term stability

+/- 0,5 % per year typically

Housing

Material ABS, dimensions see below

Panel

Stainless steel

Pressure connectors

  • Ø 3 x 4mm (fl exible hoses Ø 3)
  • Ø 4,6 x 9mm (fl exible hoses Ø 4)

Electric outlet

Screw terminal max. 1,5 mm²

Protection

class II

Protection type

IP 20

Standards

  • EN 61000-6-1
  • EN6100-6-2
  • EN61000-6-3
  • EN61000-6-4
  • EN 61010

Weight

ca. 1,2 kg (ca. 1,3 kg with supply)

Impact strength

10 x g

Sensor volume

aprox. 10 ml

Volume increase

aprox. 0,2 ml for nominal pressure

Display

  • 4×7 segment LED-display; 4 digits, height of digit 14,2 mm,
  • 4×14 segment LED-display 2 digits, height of digit 13,8 mm

Zeroing

  • zeroing is adjustable Manual
  • automatic (after system start then after 10 min, 20 min. and 1 hour. Then every hour)

Option

Output RS485 and with Modbus ASCII protocol / Modbus TCP / IP

Limit contacts

  • 2 limit contacts (current consumption aprox. 35/45 mA)
  • Relays output changer: 6 A / 230 VAC
  • Status displayed via 2 LED
  • Programmable: Hysteresis, power-on/ power-off delay, Opener/ NO switch
  • Warning by flashing the display (value set)

Product Help

DP included

Does it include differential pressure measurement?

Yes it does, it has a bi-directional differential pressure range to measure over -100 to +100 Pa between the 2 ports.

Alarms for temperature & humidity

Can you program alarm limits ie. 18-24 degrees alarm at low and high temperature and for humidity 40-60%?

The device has two free adjustable limit contacts. These two contacts can be freely assigned to any measurement channel.

Dimensions of wall mounted clean room monitor

What are the dimensions of the PMDS4 wall mounted clean room monitor?

The width of the PMDS4 is 134mm, height is 284.5mm, and the depth into wall is 44mm.

PMDS4 Dimensions

Related Documents

Specification data sheet

  • PMDS4 pdf product data sheet
  • EE08 Air Temp & RH Sensor data sheet

Operation manual

  • PMDS4 manual

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