Envco – Environmental Equipment

The Hydrological Services WL2100W is our latest generation of wet pressure transducers. It allows the measurement of water head to a fine degree of accuracy and repeatability, due to full temperature compensation.

The WL2100W output is both SDI-12 and 4-20mA compatible - but not at the same time. This allows any SDI-12 or any 4- 20mA recording device to communicate with the pressure transducer. The operator may use the SDI-12 to RS232 adaptor cable and then communicate using RS232 from a PC.

Specifications
RANGES - WATER LEVEL
0-5M,
0-10M,
0-15M,
0-20M,
0-30M

Isolation Diaphram : 316 Stainless Steel
Operating Range : 100kPa (10 metres), 200kPa 20m), 300kPa (30m)
Overpressure : 1.5 x Range

Supply Voltage : 9V – 30VDC (beyond SDI-12 specification Version 1.2)
Supply Current : 2.0mA nominal in SDI-12 mode
Output Signal : SDI-12 Compliant (Version 1.2) OR 4-20mA (The user selects)
Overall Accuracy : + 0.05% F.S. BSL
Long term stability : Typically + 0.03% FS/annum
Measurement Cycle : Every 4 secs (in 4-20mA mode), When requested (in SDI-12 mode)
Recommended Warm Up Time : 15 secs (after power is first applied)

Operating Temperature range : -20C to +60C (Compensated over this range)
Humidity : 100% (WL2100W)
Electrical Connection : Junction Box
Vented Cable : 6 core vented polyurethane with kevlar strength members. (Up to 60m – due to SDI-12 specification).
Voltage Spike Protection : Will withstand a 600V voltage spike in accordance with ENV50142 with out damage when applied between excitation lines and case.

Calibration : Over full pressure range.
Insulation : Greater than 100Mohm at 500V d.c.
Dimensions : Length 180mm
Diameter 37mm
Mass : 0.39 kg (excluding cable)

Ordering Information
WL2100D Submersible (Wet) Transducer (specify range and cable length)