Real Time Gas Monitoring System

Real Time Gas Monitoring SystemEasily access your data, reduce maintenance times and ensure compliance with Ampcontrol’s real time gas monitoring solution.

Digital Record KeepingAutomated Tests Easily Managed Compliance

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The System The Ampcontrol Real Time Gas Monitoring System features Ampcontrol’s Gasguard 2 robust smart gas detectors and Gasguard Live digital user interface.

The system provides compliant gas detection and a range of automated tests which reduces the instances of human error. When combined with our digital record keeping, diagnostic and configuration tool, Gasguard Live, this system improves maintenance times, ensures tracability and makes compliance easy to manage.

Panel mounted system

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Real Time Gas Monitoring System

Display Modules Gasguard 2 comprises of an Intrinsically Safe (Ex ia I Ma) display module which allows for the display and transmission of detector data and system information.

Housed within an IP66 rated stainless steel enclosure the display module is available in three variants: a glanded display supporting both digital and analogue, or pluggable versions supporting either digital or analogue.

The display module interfaces to a range of detectors for monitoring the atmospheric concentration of the target gas.

Electrochemical � Carbon Monoxide (CO)

� Oxygen (O2)

Catalytic � Methane (CH4)

� Non Dispersive Infra-red

� Methane (CH4)

� Carbon Dioxide (CO2)

t90 Response Time Test t90 is a critical parameter in ensuring the intended safety function of real time monitoring of gas concentrations.

Detector response times are defined as time taken to get to 90% of final value from an initial step input.

Gasguard 2 has an automated feature allowing ease and accuracy of this measurement.

Telemetry Test The telemetry test allows controlled end-to-end testing from detector through to the control room alarms. This also ensures communications / analogue interfaces are functioning, and does not require a test gas to be applied.

Detector Environmental DataThe following additional data is available via the local UI, RS485 and iMAC interfaces:

� Detector temperature - current temperature of the detector element (°C)

� Detector pressure – hectopascals hPa

� Detector humidity – detector relative humidity

Detector Information � NATA linearity timestamp to avoid compliance

breaches

� Align trend data with maintenance activities, using the calibration cup event flag

� Fault diagnostics information » Detector supply voltage » Bypass status

Automated Test Features Fixed/machine mounted gas detectors are designed to provide rapid measurements of target gas concentrations. Routine checking of the response time of fixed/machine mounted detectors is needed to ensure that the instrument’s performance continues to achieve the intended function.

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Real Time Gas Monitoring SystemGasguard Live Gasguard Live provides you with clear visualisation of the detector data, communication health, trip location and calibration records. In addition, with the help of automatic recording of calibration results, trip logs and system configuration changes, compliance can be easily managed.

With surface access to live data you have the information and system status to aid in early intervention when and where you need it. It also provided the ability to undertake remote system configuration which can improve maintenance times, ensure traceability of work undertaken and improve system availability.

Benefits � Server based - unlimited PC access, no user licences

� Greatly reduced commissioning costs (engineering, software, time)

� Maximises the functions and data available via Gasguard 2 sensors

� Simple integration to existing SCADA network

� Simplified support with common software, common descriptors/language and remote tech support

� Remote configuration changes and access to calibration tests, trip logs

Gasguard Live PLC/SCADA

Server based software that’s ready to use and available on any device with no ongoing licence fees

Visualise Data is only available on licensed computers and devices

Plug and play installation. Once gas system installed, monitoring and control system can be deployed

Set Up SCADA solutions require substantial engineering input and custom install on each PC

Pre-configured software ready to use. Adjustable and scalable over time Configure Engineering is required to re-program addresses,

firmware and applications

Low cost, pre-built application software CapexExpensive and time consuming to design, program and test multiple components (eg SCADA, PLCs, RTUs, communications networks, reporting etc)

Remote maintenance, updating, technical support and troubleshooting. Central system means all customers can take advantage of all updates and improvements

MaintenanceSpecialist expertise and significant investment in man hours to maintain and support. Customisation means all maintenence is the customers responsibility

A flexible, scalable system that simply grows with your requirements Scalable Inflexible systems mean scalability can be

complex and cost prohibitive

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Real Time Gas Monitoring System

The Gasguard system features a built in iMAC interface which connects directly to the iMAC fieldbus. Each module reports via a pulse width modulated signal on a single twisted pair cable to the iMAC Controller located on the surface of the mine. Information from each module includes:

� Gas value

� Gas status (warn/trip)

� Power supply status (warn/trip)

� Module resistance

� Temperature, humidity, pressure

� Calibration cup event

� Bypass feedback

� NATA calibration due

� Monthly instrument maintenance reminders

� Adjustable healthy range in relation to set-points

The surface iMAC Controller is interlocked with the underground power feeds and interfaced with the mine PLC - SCADA system for completely integrated monitoring and control.

iMAC Slave Controllers are also installed in the 11kV underground switchboard and in each 11kV section circuit breaker. These controllers are user configurable and can monitor any detector or combination of detectors connected to the network automatically, initiating a power trip at the required set points. The controllers also monitor the status of the outlet to be tripped. If the outlet does not trip, an upstream trip of the underground power feed is automatically initiated.

The surface iMAC Master Controller communicates with and monitors the additional iMAC Slave Controllers connected to the network, allowing local configurations to be confirmed and monitored.

The design of the system is fail safe and any damage to the system hardware or cabling is treated in the same fashion as a gas initiated event.

Each production panel is allocated an isolated iMAC network, ensuring any system or cable damage in a production panel only affects that panel.

Gasguard System

Gasguard Real Time Gas Monitoring System

IS UPS

Remote Tripping Switch

Copper iMAC fieldbus IS power

Copper iMAC fieldbus

Copper/Ethernet

Surface

Underground

RTS

SoftwareUI

SCADA

RTS

RTS

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