Abstract: A multi-function fluid flow monitoring apparatus capable of measuring fluid flow-related variables of fluid in a channel on the basis of signals from any one or more of a plurality of different types of flow sensors. Such different types of flow sensors may include, for example, a bubbler-type pressure sensor, a submerged pressure transducer, an ultrasonic transducer, and/or a velocity sensor forming part of an area-velocity sensor system, each of which sensors may be selectively connected to the apparatus as needed to accommodate various monitoring conditions. The apparatus is further capable of monitoring various conditions of fluid in the channel, such as pH level, ORP, temperature, solution conductivity, dissolved oxygen, and the like.

Abstract: A fluid sampling apparatus provided as a unitary structure which automatically collects fluid samples according to modes of operation selected by a user, while monitoring an analyte of interest on a real-time basis on the basis of signals from a fiber optic sensor, and collecting and storing sampling and analyte data for later retrieval. The user may select from various modes of operation, including sampling triggered by a predetermined value(s) of the analyte, flow proportional sampling, and/or sampling at predetermined time intervals. The apparatus includes a self-contained microprocessor, together with associated program and data memory, for automatically controlling sampling operations, calculating analyte values on the basis of signals from the fiber optic sensor, calculating flow rate on the basis of signals from a flow sensing arrangement, and storing data relating to sample collection, analyte levels, and flow rate.

Abstract: An automatic fluid sampling and monitoring apparatus provided as a unitary structure, and capable of collecting fluid samples at selected intervals, monitoring the level of a condition of the fluid at selected intervals, and collecting and storing sampling and fluid condition data for later retrieval. Sampling operations may be controlled on the basis of time and/or levels of a fluid condition being monitored. Where the apparatus also incorporates an internal flow measuring assembly, or is connected with an external flow meter, sampling operations may also be controlled on the basis of flow rate. The apparatus includes a self-contained microprocessor for automatically controlling sampling operations, calculating fluid condition levels on the basis of signals from a sensor, and storing data relating to sample collection and the fluid condition.

Abstract: An automatic liquid sampling and flow measuring apparatus provided as a unitary structure within a case, and capable of collecting liquid samples at selected intervals, measuring flow rate through a channel at selected intervals, and collecting and storing sampling and flow rate data for later retrieval. The apparatus is provided with its own self-contained microprocessor for automatically controlling sampling operations, calculating flow rate on the basis of signals from a sensor, and storing data relating to sample collection and flow rate measurement. The stored data can be called up on a display of the apparatus, or can be transferred via a portable transfer unit to an external output device, such as a printer capable of producing a hard copy of the data.