C04WP POWERED TOTALISOR

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March 2011

The CO4WP four digit LED Totaliser is a 120/240VAC or 18-36VDC powered microprocessor based totaliser that incorporates a four (4) digit 57mm digit height LED display in a weatherproof surface mount enclosure. The instrument can be configured to count up, up/down, elapsed time, time of day clock, events or totalise flow with programmable K factor. It accepts a pulse input from a dry contact closure, proximity switch, photo-electric switch, open collector transistor or 24VDC source with debounce circuitry. The count value is maintained during loss of power for a minimum period of ten years in eeprom.

FEATURES

  • Memory retention in power down for 10 years
  • 120 or 240VAC 47-63 Hz supply or factory fitted 12 to 36VDC isolated supply
  • Contact bounce elimination circuitry
  • Microprocessor based
  • Low cost - High performance
  • Screw terminal electrical connection
  • Count up and down
  • High contrast LED display
  • The CO4WP has an 4 digit 57mm digit height LED display
  • Surface mounting IP67 weatherproof enclosure
  • Isolated 24VDC loop supply
  • Touch switch programming of decimal point, debounce period, k factor and repeat contact
  • Applications include count up/down totaliser, flow rate totaliser and time date display.
The CO4WP Powered Process Totaliser is advanced instruments which has been designed to accept pulses from dry relay contacts, open collector flow meters, photo electric switches and 5 to 24VDC source. The input measurement is shown on a high contrast 4 digit LED display.
 
They incorporate field programmable totalising rates and a 24 VDC isolated supply for powering remote sensors. The CO4WP is supplied in a surface mount IP67 weatherproof enclosure. Screw terminal electrical connection is included.
 

TECHNICAL SPECIFICATIONS

Input Details
  • The instrument counts input pulses and displays the totalised value on an four (4) digit LED display. The input can be from dry relay contact, open collector flowmeter, photo-electric switch, proximity switch or 5-24VDC voltage source
  • CMRR greater than 86db
  • NMRR greater than 100db.
Output Details
An output relay is provided with form C contacts rated at 5 amps 240VAC resistive for use as a repeat contact. 
 
Display
Four (4) digit 57mm digit height high contrast light emitting diode (LED) with a wide viewing angle and a viewing distance of 7.5 metres.
 
Count Integrity
Contact bounce elimination and optical isolation circuitry enable error free counting even in the most difficult application. The count is stored in eeprom.
 
Reset Instructions
This is accomplished by connecting a normally open push button between terminals 1 and 6. 
 
Environmental Parameters
  • 0-70 degrees Celcius
  • 0-90% rh non condensing.
Connection Details
Terminal 1:Input 0VDC (-) Terminal 9:AL1 normally closed
Terminal 2:Count up CC (+) Terminal 10:AL1 relay common
Terminal 3:Count up volts (+) Terminal 11:AL2 normally open 
Terminal 4:Count down CC (+) Terminal 12:AL2 normally closed
Terminal 5:Count down volts(+) Terminal 13:AL2 relay common
Terminal 6:Reset Terminal 14:VAC active or VDC (+) supply
Terminal 7:Transducer power supply Terminal 15:VAC neutral or VDC (-) supply
Terminal 8:AL1 normally open Terminal 16:Ground.

Instrument Power supply
120/240VAC 47-63 Hz or factory fitted DC to DC converter isolator from 12 to 48VDC. 

Transducer Power Supply
A 24VDC at 30mA transducer power supply is incorporated in the instrument. 
 
Weight
400grams.
 
Mounting Details
Surface mounting weatherproof enclosure of case dimensions 230mm wide by 140mm high by 95mm deep with fixing centres of 212mm wide by 122mm high. 
 
Configuration of the Instrument
The decimal points, k factor and output relay are programmed by the front touch buttons and the values are stored in eeprom. 
 
Ordering Information
  • Model/input signal/display units/power supply
  • Sample number: CO4WP/CC/0-9999/VAC.
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