XiLog is a telemetry data logger which operates via GSM cellular radio using the Short- Messaging-Service (SMS). It is available in single, dual or four channel models for use with a wide variety of sensors for monitoring water networks.

• Operation independent of telephone lines and power supplies
• Optional deployment below ground
• Interrogate XiLog to obtain current data values of flow, pressure, depth, etc
• Supplied with in-built air-time (if required)
• Five year battery life (under defined conditions)
• Mains powered version available
• Submersible to IP68

Flexible operation
XiLog communicates by sending text (SMS) messages to a computer. Giving high flexibility XiLog has two modes of operation:

• Routine data transfer: XiLog is preprogrammed to send daily text messages to a host computer. These messages contain the logged data such as flow, pressure or depth, etc. XiLog can also send outgoing alarm messages to a PC or mobile telephone.
• Communication as required: In addition XiLog has the capability to be contacted from a PC. This enables the user to obtain current data values.

Easy installation and use

The use of text messaging means that a much lower cellular radio signal is required. This, together with a special aerial design, enables XiLog to operate from below ground in many locations. For operation in areas of poor GSM coverage an external antenna can be fitted.

Benefits

• Up-to-date information onto your computer
• Access to data from anywhere
• Simple installation
• Ability to contact logger when required
• Daily and window alarms
• Control of operational costs

PrimeLog is a comprehensive data logger system for use in a wide variety of water industry applications. The PrimeLog range consists of single, two and four channel data loggers. Communication is via local connection to a PC or hand-held PDA. Remote communications alarm facilities are provided by telephone loggers.

Applications

One range of data loggers can be used for many water system applications, including:

• District, domestic and leakage flowmetering
• Hydraulic network analysis
• Pressure/PRV monitoring
• Rainfall
• Open-channel flow (weirs, etc)
• Reservoir and bore-hole depth
• Over-flow detection
• Functioning time of pumps

Digital (flow) interfacing

PrimeLog digital input is bi-directional and accepts flow inputs from a wide range of meters, including those from Elster (Kent), Sensus (Socam/Meinecke), Schlumberger (Actaris/Stream) and ABB. The digital input also operates with a rain gauge, overflow detector for monitoring reservoirs or storm overflows, and also a sensor for monitoring the on/off times of pumps.

Pressure/Analogue channels

Accuracy is available to +/-0.1% (of full scale). For optimum accuracy the offset of the transducer is corrected by the Auto Zero facility. PrimeLog loggers with analogue inputs can accept external pressure or depth transducers for monitoring weirs, reservoirs, boreholes, etc; or a wide range of electrical signals. One logger can monitor many types of analogue signal.

Logger system features

• Interfaces to all common meters
• Digital channels are bi-directional
• Analogue channel accepts pressure, depth, voltage and current inputs
• High analogue accuracy; ±0.1%
• Small, robust, submersible to IP68
• Powered for minimum 5 years (PSTN version battery life depends on use)

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