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DIR4NR Process Indicator

The DIR4NR Powered Process Indicator is a 120/240VAC or 12-40VDC powered 4.5 digit process indicator supplied in an extruded aluminium panel mount enclosure. The instrument is touch switch programmable from the front panel for input range. A 24VDC at 30mA loop supply is available for the direct connection of 2 wire transmitters.

CALIBRATION NOTE
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  • Accepts all standard process signals
  • Digital instrument with touch switch programming of all functions – input range, display intensity and decimal point position
  • Eeprom storage of programmable variables
  • Band gap reference
  • Differential input
  • Low cost – High performance
  • 120 or 240VAC 47-63 Hz supply or factory fitted 18 to 24vdc isolated supply
  • 4.5 digit high brightness LED display of 25mm digit height
  • Decimal point programming
  • Panel mount enclosure of 72x144mm with sealed weatherproof front
  • Optional clear silicon boot to increase the weatherproof rating to IP67
  • 24VDC loop supply for loop powered sensors and transmitters
  • Emc compliant

The DIR4NR provides screw terminal electrical connection by two part plug connectors allows simple connection and disconnection.

specifications

INPUT DETAILS
  • The instrument has a bipolar differential input. To realise the accuracy a temperature compensated band gap reference is used in the radiometric measurement system. Full scale ranges of 20 MV to 200VDC 200uA to 2 Amps and 4-20mA are acceptable
  • A special range is available of 0-110VDC
  • CMRR greater than 86db
  • NMRR greater than 100db
DISPLAYS

DIR4NR: A 4.5 digit high contrast light emitting diode (LED) of 25mm digit height with a wide viewing angle and a reading rate of 4 per second. The display intensity is programmable from the front panel. The digits have a viewing distance of 10 metres.

DECIMAL POINTS

DIR4NR: Four (4) position user programmable from the front panel.

INSTRUMENT POWER SUPPLY

120/240VAC 47-63 Hz or factory fitted DC converter isolator from 12 to 40VDC.

TRANSDUCER POWER SUPPLY

A 24VDC at 30mA transducer power supply is incorporated in the instrument.

OPTIONS

A silicon boot is available to increase IP protection to 67.

ENVIRONMENTAL PARAMETERS
  • 0-70 degrees Celsius
  • 0-90% rh NON condensing
WEIGHT

DIR4NR: 450 grams

MOUNTING DETAILS

DIR4NR: Panel mounting aluminium enclosure of case dimensions 144mm wide by 72mm high by 85mm deep with a panel cut out of 138mm wide by 67mm high.

ORDERING INFORMATION
  • The part number is configured as
  • Model/input signal/display units/power supply
  • Sample number: IR4NR/4-20mA/0-100.0/VAC
  • All units shipped factory calibrated to 0-100.0
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