Envco – Environmental Equipment

• High Accuracy ± 0.02 % F.S
• Output Signal 4-20mA, SDI-12, RS232
• Programable LCD Time, date, level
• Digitally Compensated for non-linearity and Temperature
• User Select Imperial or Metric.
• Individual Calibration Certificate
• Digitises output signal
• Robust construction
• Backlight Powered Via SDI-12 Connection
• Lithium battery backup

Both the WL3100 and the WL3100A measure pressure, which is related to the water level through a user factor. To obtain the stated accuracy, this user factor must be changed slightly depending upon the site location on earth as well as a few other parameters. In the WL3100, the user factor must be determined by the operator, however the WL3100A can calculate the factor for you by simply entering the latitude, altitude, instrument height above the orifice and average water temperature. All values are entered using the LCD and push buttons. (The WL3100A also has a wider operating temperature range)

SPECIFICATIONS
Enclosure: Aluminium diecast weatherproof enclosure IP65
Dimensions: 180 x 105 x 100 mm
Weight: 1.2 kg
Isolation Diaphgram 316 Stainless Steel

Operating range: 0-5, 0-10, 0-15 , 0-20, 0-30 metres water head ( Imperial units also available up to 100 feet range).
Over pressure: 2.67 x ranges

Operating Temperature:
WL3100A -40 oC to +70 oC (-40 oF to +176 oF) (Excluding LCD Display)
WL3100 -20 oC to +70 oC (-4 oF to +176 oF) (Excluding LCD Display)
Humidity: 100% non-condensing

Operating Voltage: 9.6 to 16 VDC via SDI-12 port
Current Loop Operating Voltage: 9 to 30 VDC

Output: 4-20mA (optically isolated to 2000 VDC or AC peak), SDI-12 and RS232

Accuracy & Linearity: ±0.02% of F.S. Referenced to a best fit straight line
Long Term Stability: Typically ±0.05 % F.S./annum
Pressure Connection: 1/4Tube
Sensor Vent: Sintered Filter
Calibration: Over full range against water head.
Insulation: Greater than 100MΩ at 500 V DC

LCD Display Specifications:
Screen: 2 lines x 16 characters LCD
Backlight Powered via SDI-12 port (9.6 to 16 VDC)
Display: range, resolution, time, date and Level reading.
Parameters: User selectable via push buttons on the pressure transducer housing

Ordering INformation
WL3100 - DRY PRESSURE TRANSDUCER, MODEL WL3100, HIGH PRECISION, INPUT
VOLTAGE 9.6 TO 16 V DC, ACCURACY ± 0.02% FULL SCALE, IN POWDER
COATED ALUMINIUM DIE CAST WEATHERPROOF CASE IP65, LCD, PUSH
BUTTON PROGRAMMABLE DISPLAY SHOWING TIME, DATE, RANGE,
RESOLUTION, AND WATER LEVEL READING WITH OFFSET (LITHIUM
BATTERY BACKUP), OUTPUT SIGNALS 4-20MA, SDI-12, RS232, RANGES 0-5,
0-10, 0-15, 0-20 AND O-30 METERS OF WATER LEVEL, INDIVIDUALLY
CALIBRATED WITH CERTIFICATE, COMPLETE WITH INPUT PLUG AND
INSTRUCTION MANUAL.
TEMPERATURE RANGE -20 TO +70 DEGREES CELSIUS

WL3100A - DRY PRESSURE TRANSDUCER, MODEL WL3100A, HIGH PRECISION, INPUT
VOLTAGE 9.6 TO 16 V DC, ACCURACY ± 0.02% FULL SCALE, IN POWDER
COATED ALUMINIUM DIE CAST WEATHERPROOF CASE IP65, LCD, PUSH
BUTTON PROGRAMMABLE DISPLAY SHOWING TIME, DATE, RANGE,
RESOLUTION, AND WATER LEVEL READING WITH OFFSET (LITHIUM
BATTERY BACKUP), PROVISION TO INPUT LOCATION AND SITE DETAILS SO
TRANSDUCER CAN CALCULATE A SITE ADJUSTING FACTOR, OUTPUT
SIGNALS 4-20MA, SDI-12, RS232, RANGES 0-5, 0-10, 0-15, 0-20 AND O-30
METERS OF WATER LEVEL, INDIVIDUALLY CALIBRATED WITH CERTIFICATE,
COMPLETE WITH INPUT PLUG AND INSTRUCTION MANUAL.
TEMPERATURE RANGE -40 TO +70 DEGREES CELSIUS