Application 

Head pressure monitoring within a coal seam gas bore.

Key Requirements

• Level sensor capable of being installed at depths of up to 350m in water
• Relevant approvals for use within an explosive atmosphere
• Responsive and accurate analogue output
• Robust housing with catenary and cable protection options
• Resistance to voltage transients

Solution

STS ATM.ECO/N/EX pressure transmitter with the following key features;

• Submersible 0-40bar pressure transmitter with up to 385m of PTFE cable
• IECEX certification for use within coal mining operations
• 4-20mA output with an accuracy of <0.25% FS and a response time of <1ms
• 1.4435 stainless steel housing with catenary strain relief. Option for stainless steel cable protection available
• Immunity to surge levels of up to 0.5kV/42ohm (line to line) and 1kV/42 ohm (line to earth).

Application 

Cable winder position feedback within a dragline.

Key Requirements

• Accurate monitoring of cable drum position
• Capability of withstanding high temperatures and shock loads
• Ability to communicate with GE control systems
• Protection from external contaminants
• Robust housing

Solution

AMCI HT-20 brushless single-turn resolver transducer with the following key features;

• Highly accurate resolver technology providing a maximum error of +/- 7 minutes
• Operational temperature abilities of  -40 deg C to 125 deg C with shock and vibration figures of 50 Gs for 11ms and 15Gs to 2000Hz
• I/O module cards to communicate directly with GE Fanuc PLCs
• IP67 rating providing protection from water, dust and chemical ingress
• Extruded aluminium housing with dual bearings capable of withstanding radial loads of 45kg and axial loads of 22kg

Application 

Continuous level monitoring of diesel fuel within a hazardous environment.

Key Requirements

• Level sensor that does not require structural modification of the storage vessel for installation
• Relevant approvals for use within a hazardous atmosphere
• Responsive and accurate analogue output
• Suitable for use over an extended temperature range
• Resistance to RF interference from handheld radios

Solution

STS ATM.ECO/N/EX pressure transmitter with the following key features;

• Submersible pressure transmitter with a 24mm IP68 stainless steel housing
• IECEX certification for use within explosive atmospheres
• 4-20mA output with an accuracy of <0.25% FS and a response time of <1ms
• Approved for use with process temperatures ranging from -5 to +50 deg C
• Immune to RF interference of up to 10V/m and within the frequencies of 0.08 and 2.7GHz for 3s

Application 

Pump protection for a tailings dam.

Key Requirements

• ‘Run-dry’ monitoring for pump protection
• Suspended solids to not affect the flow sensor’s operation
• Easily adjustable switching point
• Wide voltage range
• Robust housing

Solution

weber 4120.12M flow-captor with the following key features;

• Calorimetric principle flow sensor capable of monitoring flow rates of up to 3m/s and switching loads of up to 400mA
• Stainless steel insertion probe than can withstand pressures of up to 100 bar and is not affected by suspended solids
• Easily accessible range and set point adjustments with a visual analogue display of flow rate
• Wide 10VDC to 36VDC range
• Stainless steel IP67 housing that withstands ambient temperatures of up to 70 deg C

Application 

Monitoring of luff, slew and long travel upon stacker-reclaimer machinery.

Key Requirements

• Compatible with existing control system
• Resistance to an aggressive environment
• Highly accurate and repeatable
• Ease of maintenance and configuration
• Reliable life cycle

Solution

Hengstler AC61 series encoder with the following key features;

• Allan Bradley compatible communications via DeviceNet
• Robust stainless steel IP67 housing with high resistance to vibration and temperature (-40 to +85 deg C)
• Resolution up to 26 bit with adjustable Baud rate
• Plug-in termination base that provides easy access to DIP switch controls
• High MTBF (mean time between failure) figures

Application 

Stacker-Reclaimer / Loader energy chain replacement.

Key Requirements

• Replace competitor’s energy chain with a more reliable option
• Ease of installation and maintenance
• Adaptable to various cable / hose sizes
• Capable of high travel speeds
• Resistant to aggressive environments

Solution

Conductix Wampfler KSPMC 1250 Energy Chain with the following key features;

• Heavy duty glass fibre reinforced links with aluminium frame stays
• Simple cable installation due to easily accessible strain relief clamps and frame stays that can be opened from either side
• Vertical cable separators are easily adjusted to suit differing cable / hose sizes
• Travel speeds of up to 240m/min
• High UV and chemical resistance

Application 

Monitoring of the water level within an underground coal mine.

Key Requirements

• Certified for use within an underground coal mine (potential for methane gas)
• Analogue output to measure up to 30m of water depth
• Facility for cable and catenary connection to lower the transmitter 300m down a bore
• High accuracy and repeatability
• Sensor referenced to atmosphere

Solution

STS ATM.ECO/N/Ex submersible pressure transmitter with the following key features;

• IECEx certification
• 4-20mA output with 3X overpressure on a 0-30m range transducer
• 330m intrinsically safe ‘blue’ cabling with Viton seals and catenary fittings on the rear of the stainless steel housing
• 0.1% FS accuracy with temperature compensation from -5 to 80 deg C
• Sensor referenced to atmosphere via an integrated ‘breathing’ filter