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Model 525/505 probe

Price on Request

These probes have built-in transmitters and are powered by low voltage supplies. They are intended for environmental monitoring.

The 525 has a Standard Probe type sensor and will operate with a supply voltage as low as 5.5 V. Its output signal is 0-2.5 V and it has a very low power consumption. It is ideal for use where solar panels are used as power source. The 525 T is a combined DO and temperature probe with two output signals.

The Model 505 can be fitted with Profile or Ocean sensors, and is intended for incorporation into sondes where the millivolt output from the sensor cannot be used directly.


SPECIFICATIONS
  • Dimensions = Diameter 58 mm, length = 88 mm. Standard cable length = 5 m.
  • Weight = Approximately 600 g including cable.
  • Measurement Principle = Galvanic cell, self polarizing, self temperature compensating.
  • Operating conditions = 0 to 50C, submersible to 50 meters depth.
  • Flow requirements, water = Minimum flow dependent on DO and temperature, typically less than 1 cm/sec
  • Output = 0-2.5 V
  • Voltage Output Impedance = Approximately 32 ohm.
  • Amplifier Impedance = Recommended min. 10 kilohm.
  • Power Supply = Min. 5.5 VDC, max. 24 VDC, Maximum consumption 6 mA.
  • Warm up time = 25 millisecond.
  • Galvanic Isolation = 1000 V RMS between sensor and outputs.
  • Accuracy = Error less than +/- 2% of actual value when measuring temperature is the same as calibrating temperature (barometric pressure unchanged) and calibrated with the EasyCal.  Zero Drift less than 0.1 ppm (mg/l) per month.
  • Response time = (To step change in oxygen level) 90% of end value within 1 minute.
  • Supplied with = Spare membranes, O-rings and a plastic cleaning pad.
  • Range, temperature = 0-2.5 V = 0 - 50 C.

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