2. PRODUCT DESCRIPTION
2.1 System Description
The Thermo Scientific AquaSensors AquaTrace DO system is used for continuous measurement of dissolved oxygen. The
system is capable of measuring dissolved oxygen where the oxygen concentration is below 20 ppm but it is intended for
service in applications below 1000 ppb. The system also measures the sample temperature across its rated range.
The AquaTrace DO is a complete system that includes all components necessary for the low-level oxygen measurement. The
system consists of a low-level oxygen sensor head, a DataStick sensor body with a communication adapter, and a sample
chamber mounted to a back panel for easy installation. The system includes an AV38 remote display either mounted to the
back panel or ready for mounting at a remote location depending on how the system is configured.
The sample chamber secures the sensor in the process. It directs the sample flow onto the sensing face of the probe and
directs the outlet flow away from the sensor tip while also eliminating entrapped bubbles. This improves the sensor’s
response to changing process conditions and maximizes the accuracy of the dissolved oxygen measurement. The sample
chamber uses a union-style locking ring to secure the sensor, allowing the sensor to be inserted and removed without
twisting the sensor cable.
The AquaTrace system includes an AV38 local display that allows the operator to interface with the sensor. The AV38 allows
the operator to display the system’s measurement values, to calibrate the sensor, and to configure the sensor’s various
measurement options. The AV38 can be configured with relays and analog outputs for use in control systems and can
include host communications for network communications using one of several standard protocols. The images below
indicate panel dimensions.
AquaTrace Trace DO Measurement System
Thermo Scientific AquaSensors
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AquaTrace
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Trace DO System User Guide
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