DIR4: Powered Process Indicator

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May 2011
application/pdf iconDIR4 process indicator with four setpoints data sheet.pdf
application/pdf iconDIR4cal 4setpoints.pdf

The DIR4 Powered Process Indicator is a 120/240VAC or 18-36VDC powered 4.5 digit process indicator supplied in an extruded aluminium panel mount enclosure with 4 setpoints which can switch 240VAC at one (1) ampere resistive with 99% deadband. ...

The DIR4 Powered Process Indicator is a 120/240VAC or 18-36VDC powered 4.5 digit process indicator supplied in an extruded aluminium panel mount enclosure with 4 setpoints which can switch 240VAC at one (1) ampere resistive with 99% deadband. The instrument is touch switch programmable from the front panel for input range and set point relay operation. Range cards are available for PT100 resistance bulbs. A 24VDC at 30mA loop supply is available for the direct connection of 2 wire transmitters.

FEATURES

  • Accepts all standard process signals
  • Digital instrument with touch switch programming of all functions - input range, relay on and off point, high or low alarm, display intensity and decimal point position.
  • Eeprom storage of programmable variables
  • Bandgap 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
  • Four (4) set point relays with form C contacts
  • Panel mount enclosure of 72x144mm with sealed weatherproof front
  • 24VDC loop supply for loop powered sensors and transmitters
  • Emc compliant (C tick)

The DIR4 Powered Process Indicators are advanced instruments which have been designed and manufactured to stringent specifications which accept all the standard analogue process signals.

The DIR4 provides four (4) set point relays with 99% deadband. All the set point relays have changeover contacts and will switch one amp at 240VAC resistive. Screw terminal electrical connection of two parts are included which allows simple connection and disconnection.

TECHNICAL SPECIFICATIONS

Input Details
  • The instrument has a bipolar differential input. To realise the accuracy a temperature compensated bandgap reference is used in the ratiometric measurement system. Full scale ranges of 20 MV to 200VDC 200uA to 2 Amps and 4-20mA are acceptable. Range cards are also available for RTDs
  • CMRR greater than 86db
  • NMRR greater than 100db
Display
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
Four (4) position user programmable from the front panel.|
 
Relay Outputs
Four (4) switch point relays are provided with form C contacts rated at 240VAC one (1) ampere resistive.
 
Connection Details
Terminal 1: input low (-)
Terminal 11: AL3 relay common
Terminal 2: mA input (+)
Terminal 12: AL2 normally closed
Terminal 3: volts input (+)
Terminal 13: AL2 normally open
Terminal 4: 24VDC loop supply
Terminal 14: AL2 relay common
Terminal 5: not used
Terminal 15: AL1 normally closed
Terminal 6: AL4 normally closed
Terminal 16: AL1 normally open
Terminal 7: AL4 normally open
Terminal 17: AL1 relay common
Terminal 8: AL4 relay common
Terminal 18: 120/240 AC supply or 24DC (+)
Terminal 9: AL3 normally closed
Terminal 19: VAC neutral or0 VDC supply
Terminal 10: AL3 normally open
Terminal 20: ground supply.

Instrument Power supply
63 Hz or factory fitted DC to DC converter isolator from 5 to 48VDC.

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

Environmental Parameters
  • 0-70 degrees Celcius
  • 0-90% rh non condensing

Weight
450 grams.

Mounting Details
Panel mounting aluminium enclosure of case dimensions 144mm wide by 72mm high by 145mm deep with a panel cut out of 138mm wide by 67mm high.

Ordering Information
  • Model/input signal/display units/power supply
  • Sample number: DIR4/4-20mA/0-100.0/VAC
  • All units shipped factory calibrated to 0-100.0 
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