The DIR4HWP Powered Process Indicator is a 85 to 250VAC or 12-40VDC powered 4 digit (9999 count) process indicator supplied in a surface mounting weatherproof enclosure with a 100mm high LED display which is rangeable in engineering units.
The instruments have been designed to accept all the standard analogue process signals. The input measurement is shown on a high contrast LED display. The DIR4HWP incorporates an LSI CMOS 20,000 count dual slope integrating analogue to digital converter which is designed to reject electrical interference that normally abounds in industrial environments. The front panel of the DIR4HWP series are sealed to IP65 and the instrument includes screw terminal electrical connection.
Accepts all standard process signals
User rangeable in engineering units
Band gap reference
85 to 250VAC 47-63 Hz supply or factory fitted 12 to 40vdc isolated power converter
The DIR4HWP has a 100mm digit height LED display
Decimal point selection
Isolated power supply of 24VDC for loop powered sensors and transmitters
Applications include the display of flow, level and pressure
The instrument has a bipolar differential input. To realise the accuracy a temperature compensated band gap reference is used in the ratio metric measurement system. Full scale ranges of 20mV to 200VDC 200uA to 2Amps and 4-20mA are acceptable.
CMRR greater than 86db.
NMRR greater than 100db
The DIR4HWP has a 4 digit display with a character height of 100mm.
Programmable from the front mounted touch buttons.
0-70 degrees Celsius
0-90% rh NON condensing
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.
DIR4HWP is 3 Kgs
DIR4HWP: Surface mounting IP67 rated weatherproof enclosure of case dimensions 380mm wide by 190mm high by 130mm deep.
The instrument is calibrated by entering the programming mode using the four front mounted touch buttons. The display intensity, decimal point, input span, relay high or low operation and relay switch on and switch off points.
The part number is configured as
Model/input signal/display units/power supply
Sample number: DIR4HWP/4-20mA/0-100.0/VAC
All units shipped factory calibrated to 0-100
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