Monitoring data loggers

Sensors were inserted in the prototype to monitor the temperature (National Semiconductors, LM35-DZ), humidity (Honeywell, HIH-3605-B) and total VOC concentration (FIS, SP3-AQ2) at various locations shown in Fig. 12.8-10. The data were collected by a data logger (Picolog, ADC-16) and analyzed. The temperature profiles from the preliminary test showed that poor seal between the hot and cool air streams compromised the prototype performance. Hot spots and uncontrollable temperature rise prevented further tests. This clearly showed that the complicated design is not suitable. 

Identification of calibration procedures for temperature-monitoring equipment (thermocouples, data loggers, etc.)... 

SCADA systems are more complex again than PC-based Data Loggers (typically managing in excess of 300 input points). They may directly monitor or supervise a number of monitoring PLCs. The software has a similar character to that associated with Data... 

These field tests can be monitored and information stored on a computer with inexpensive multimeters and the software that comes with them. Most electronic stores have multimeters with software available. These multimeters are quite versatile, but be sure to get one that will handle your amp output and provide current readings. You can also use data loggers to store information and then download it at periodic intervals. 

The measured values are continuously monitored and can be documented on a chart recorder or data logger. 

Detailed monitoring (e.g., by temperature data loggers) may be necessary for... 

High Ambient and Off-Gas Temperatures Water cooling was employed for the launch and receiver modules, the pathlength control probes, and the break flange. A total of six thermocouples were used during the first several months of operation to monitor the thermal conditions of the optics modules and probes. Thermocouple data was recorded on a separate data logger located near the measurement location. Each module had an internal thermocouple, a thermocouple to measure enclosure water outlet temperature, and a thermocouple to monitor the water outlet temperature of each probe. 

In general practice, gas detection instruments working with electrochemical sensors are very commonly employed. These rather compact devices can be worn on the body, and therefore they are very suitable for monitoring personal exposure. The user is alerted in the case of hazardous concentrations in the working environment by an audible and visible alarm device. Usually, the instruments include a data logger, which enables the recorded data to be evaluated at a PC at a later point of time. The necessary software is normally supphed with the device. 

CP systems are increasingly being provided with data loggers and telephone modem cormections for remote sensing and control from a computer in the office of the responsible party. Remote control allows frequent monitoring without actually visiting the structure. 

Measuring the pipehne potential with reference to a nonpolarized reference electrode (e.g., CU/CUSO4) is one of the most commordy used methods for potential survey (PS) of the pipeline. This method is based on the potential criteria Usted in the previous section. Presently, battery operated, inexpensive, light (50 MO or higher) internal resistance voltmeters with a resolution of 1 mV are widely available. Microprocessor digital recorders caUed data loggers are more frequendy used for monitoring pipehne potential. 

Monitoring is normally conducted by the operating personnel either from the main control room or on periodic tours of the plant. It takes the form of noting down the parameter values shown by instruments, data loggers or computer printouts and observing plant conditions. 

Sophisticated instrumentation with DCS will be provided for the automatic control of the process parameters and for monitoring the exit gas SO2 concentration. Data loggers will be provided (as an optional facility) for automatic recording of all-important process data, which can be retrieved whenever required. 

A data logger is used for data collection during monitoring. The data logger is equipped with software interface that allows fast and efficient uploading of data into the LDAR database, LEADERS . Data logged includes tag identification, leak concentration, location of leak and relevant observations. 

Skin blood flow (SBF) was measured using a laser Doppler blood perfusion monitor (Vasamedics Laserflo Blood Perfusion Monitor BPM ). The monitor was cormected to the computer via the computer s USB port The sensor used to monitor the superficial skin blood flow fed data into the monitor, and this data was collated by a voltage data logger this was then offloaded to the computer s OTLM programme. OTLM recorded the electrical signal produced by the flow of blood in the superficial vessels in the skin, and thus, as for humidity, the units of the raw data were millivolts (mV). 

HEPA filters can be tested with different methods. A wide range of test equipment for on-site measurements include particle counters, pressure gauges, airflow meters, energy data loggers, corrosion monitors and gas analysis equipment. One of the tests is the measurement of penetration of dispersed oil particles (DOP) through the HEPA filters. DOP used to be the abbreviation of DiOctylPhtalate, which however has been replaced by safer products. 

The temperature sensor used to control and monitor or both is preferably placed in a holder, e.g. in a little cardboard box or better in a vial filled with glycerol. By this method the reaction of the sensor to the opening of the door can be buffered. Electronic data loggers can provide continuous recording. 

The reinforced area was instrumented with special devices and data loggers to measure deformations and tensions, as well as environmental conditions. This allowed the in-service monitoring of the evolution of the behaviour of the composite system. Since then, several Portuguese researchers have been involved in the in-field characterization and health monitoring of the bridge, e.g., Silva (2008). 

When 50.00 cm of 0.100 mol dm silver(i) nitrate solution, AgN03(aq), and 50.00 cm of 0.100 mol dm aqueous hydrochloric acid, HCl(aq), were mixed in an open polystyrene cup (which acted as a simple calorimeter) and the temperature of the reaction mixture was monitored by a data-logger, it was found to increase from 22.20 °C to 23.11 °C. The temperature change is caused by the following reaction ... 

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