model 525
2Pages

Combined Oxygen Probe and Transmitter for use with Data Loggers The Model 525 is specially designed for use with data loggers in the field. It combines an OxyGuard dissolved oxygen probe and a transmitter with voltage output. It can be used to measure dissolved oxygen as well as oxygen in the air or other gas. The power consumption and minimum operating voltage are low, enabling it to be powered by solar panel sources. The standard output is 0-2.5 V, the input signal requirement for many data loggers, but the 525 can be delivered with other output voltages on request. A whole series of outstanding specifications ensure accurate, trouble free measurements under all conditions and no matter how long the connections are. A special feature of the 525 is a fast warm-up time to enable the use of effective power saving techniques. A version with sensors and transmitters for both oxygen and temperature is found. * 0-2.5 V output - other on request. * Supply from as little as 5.5 volts! * Galvanic isolation between outputs and sensor. * Very low impedance voltage output - approx. 32 ohms. * Fast warm-up time. * Low power consumption. * Extremely high stability - zero adjustment is never needed, calibration seldom. * No regular maintenance needs. The robust membrane is easily cleaned, but if damaged can be replaced by anyone - at negligible cost. * Correct measurements with water flow as low as 1 cm/s. * Galvanic type - True zero. * Built-in temperature compensation. * Wide range of armatures and fixtures for measuring in liquids and gases - ask for details. * Wide range of accessories.

Specifications Dimensions: Weight: Measurement Principle: Operating Conditions: Flow Requirements, water: Output: Voltage Output Impedance: Amplifier Impedance: Power Supply: Galvanic Isolation: Accuracy: Warm-up Time: Response Time: Supplied With: Additional for Model 525T, Range, temperature: Diameter = 58 mm, length = 88 mm. Standard cable length = 5 m. Approx. 600 g incl. cable. Galvanic cell, self polarizing, self temperature compensating. 0 to 50°C, submersible to 50 meters depth. Minimum flow dependent on DO and temperature, typically less than 1 cm/sec. 0-2.5 V Approx. 32...