Autonomous Data Collector
The DCX-22 is an autonomous, battery powered instrument made of stainless steel designed to
record water depth (pressure) and temperature over long periods. Two versions are offered:
DCX-22 The sensor, electronics and battery are housed in a sealed stainless steel
tube, for submersible deployment. For data read-out the DCX-22 must be recovered from the
measurement point. The O-ring sealed end cap is then removed to access the data port.
The DCX-22 works with an absolute pressure sensor. In shallow water depths where the influence of barometric pressure changes should be considered, it is recommended that a second data collector DCX-22 (Baro) is placed at the surface, to record the barometric pressure. The PC then calculates the differential pressure resp. the water depth by subtracting the two measured values.
DCX-22 SG/VG The sensor is connected by waterproof cable to a surface mounted housing
with the data read-out port. This arrangement allows for easier data recovery from fixed installations. The DCX-22 SG/VG does not have to be removed from the dip pipe for data read out. The DCX-22 SG/VG is supplied with a 2” diameter fixing plate to enable mounting at the top of the dip pipe. The sensor can be sealed gauge SG, or vented gauge VG, the cable carries the vent tube for VG version sensors, vent port in the housing is protected by a breathable Gore-Tex® membrane.
The electronics employ the latest microprocessor technology, which give high accuracy and resolution for the pressure and temperature signals from both the depth sensor and the barometric sensor.