Low Pressure Drop
Low Pressure Drop/Turbo Silencers
Straight through silencers have an unobstructed passage through the silencer with no flow reversal. The result is a pressure drop across the silencer only slightly above that caused by an equivalent length of pipe. Side connections are not practical in this design due to an increase in pressure drop and price. Noise attenuation provided by straight through design is less than that provided by chamber design silencers incorporating a flow reversal. As a result, the MT series is best used in applications where low pressure drop is the primary consideration.
Residential grade straight through, low pressure drop silencer. Use an MT22 for silencing in areas where background noise is relatively high and moderate silencing is needed and requirements call for a low pressure drop silencer. Expected attenuation is 20 to 25 dBA.
Semi-Critical grade straight through, low pressure drop silencer. Use an MT32 for average silencing in areas where some background noise is always present and effective, but not complete, silencing is needed and requirements call for a low pressure drop silencer. Expected attenuation is 25 to 32 dBA.
Critical grade straight through, low pressure drop silencer. Use an MT42 for better than average silencing in areas where ambient noise is relatively low and back pressure requirements call for a low pressure drop silencer. Expected attenuation is 30 to 38 dBA.
Hospital grade straight through, low pressure drop silencer. Use an MT52 for “hospital grade”” noise reduction in areas where ambient noise is relatively low and back pressure requirements call for a low pressure drop silencer. Expected attenuation is 35 to 42 dBA.Compare
up to 1000 feet (305 meters) of conductive fluid sensing cable and/or spot detectors per zone; 6000 feet (1830 meters) total, or
up to 700 feet (213 meters) of chemical sensing cable per zone; 4200 feet (1280 meters) total
The LDRA6 fully integrates with RLE’s family of leak detection cables. One controller can monitor an area for both water and chemical leaks with our distinct leak detection cables.
Create a unique combination of zone leak detection and dry contact alarm annunication
Adjustable leak thresholds fine-tune the system
Supervised inputs monitor cable for breaks and contamination
Form C relay output for each input enables communication with BMS/NMS/BAS via Modbus RTU (EIA-485)
One tri-color notification LED per input, and one audible alarm
Included Equipment: LDRA6 alarm panel
Additional Requirements: Isolated RLE power supply, leader cable, end-of-line (EOL) terminator, sensing cable (as needed for application)
Power: Requires an isolated power supply.
24VDC Isolated @ 600mA max.; requires RLE power supply PSWA-DC-24 (not included)
Leak Detection Cable: Compatible with SeaHawk sensing cable and SD-Z and SD-Z1 spot detectors (not included)
Cable Input: Requires 15ft (4.6m) leader cable and EOL terminator for each zone (not included)
Maximum Length: 1000 feet (305m) of conductive fluid sensing cable and/or spot detectors per zone; 6000 feet (1830m) total, or 700 feet (213m) of chemical sensing cable per zone; 4200 feet (1280m) total
Detection Response Time Digital: When used with conductive fluid sensing cable or chemical sensing cable, 20-3600sec, software adjustable in 10 second increments; ±2sec Dry Contact NO/NC.
Relay: 1 Form C Summary Alarm Relay, 6 Form C alarms, one per input/zone 1A @ 24VDC, 0.5A resistive @ 120VAC; Configurable for supervised or non-supervised, latched or non-latched
EIA-232: 9600 baud; Parity none; 8 data bits, 1 stop bit
EIA-485: 1200, 2400, 9600 or 19,200 baud; Parity none, odd, even (programmable); 8 data bits, 1 stop bit
Terminal Emulation (EIA-232): VT100 compatible
Modbus (EIA-485): Slave; RTU Mode; Supports function codes 03, 04, 06, and 16
Audible Alarm: 85DBA @ 2ft (0.6m); re-sound (disabled, 8,16 or 24 hours)
Visible Alarm: LED: Alarm: red; Cable Fault: yellow
Front Panel Interface
LED Indicators: Power: 1 green (on/off); 1 tri-color Status LED per zone (6 total) (Power On: green; Alarm: red; Cable Fault: yellow)
Push Buttons: Quiet/Test/Reset: 1
Temperature: 32° to 122°F (0° to 50°C)
Humidity: 5% to 95% RH, non-condensing
Altitude: 15,000ft (4572m) max.
Storage Environment: -4° to 158°F (-20° to 70°C)
Dimensions: 10.5″W x 8.0″H x 2.0″D (267mmW x 203mmH x 51mmD)
Weight: 4 lbs. (1.82kg)
Mounting: Wall mount enclosure
Certifications: CE; ETL listed: conforms to UL 61010-1, EN 61010, CSA C22.2 No. 61010-1, IEC 61326:1997; RoHS compliant
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In many industries, mechanical systems serve as the backbone
Thermal data collected with a thermal imaging camera can be
an invaluable source of complimentary information to vibration
studies in mechanical equipment monitoring.
Mechanical systems will heat up if there is a misalignment at
some point in the system.
Conveyor belts are a good example. If a roller is worn out, it will
clearly show in the thermal image so that it can be replaced.
Typically, when mechanical components become worn and less
efficient, the heat dissipated will increase. Consequently, the
temperature of faulty equipment or systems will increase rapidly
By periodically comparing readings from a thermal imaging
camera with a machine’s temperature signature under normal
operating conditions, you can detect a multitude of different
Suspected roller Overheated bearing
This thermal image shows an electric engine under normal operation.
Motors can also be inspected with a thermal imaging camera.
Motor failures like brush contact-wear and armature shorts
typically produce excess heat prior to failure but remain
undetected with vibration analysis, since it often causes little
to no extra vibration. Thermal imaging gives a full overview and
allows you to compare the temperature of different motors.
Other mechanical systems monitored with thermal imaging
cameras include couplings, gearboxes, bearings, pumps,
compressors, belts, blowers and conveyor systems.
Examples of mechanical faults that can be detected with thermal
• Lubrication issues
• Overheated motors
• Suspect rollers
• Overloaded pumps
• Overheated motor axles
• Hot bearings
These and other issues can be spotted at an early stage with
a thermal imaging camera. This will help to prevent costly
damages and to ensure the continuity of production.
Motor: Bearing Problem.
Motor: Internal Winding Problem.
References: Flir Systems
The BTU07 is a full featured and low cost BTU meter with Modbus over RS485 capability developed specifically for sub metering applications. The DFSR737A is unique among BTU meters by having the BTU calculator separate from the flow sensor, which allows the flow meter to be installed where it is needed, but with the BTU calculator and display installed anywhere it is convenient for tenant reading. The BTU07 comes as a set together with the flow and temperature sensors.
List Price: $0.00
Our Multi-Circuit Monitor power monitoring system provides a convenient solution for monitoring multiple electrical services which share a common voltage source. It also reports diagnostic information such as power factor, volts, amps, and kVAR, over an RS-485 network using the industry standard Modbus® communication protocol. To protect valuable equipment, it has built-in alarm registers for over- and under-voltage, current, and kVA.
The monitoring capabilities and open systems compatibility of the H8238 make it the ideal power monitoring solution for OEM, tenant submetering applications, and load management of power distribution units commonly used in internet data centers. The meter is a UL508 open type device without enclosure.
Real-time power monitoring
Monitor power parameters from up to 8 services with one device
Save labor and installation costs by monitoring up to eight 3Ø, (or six 3Ø plus neutral current) loads from a single service with common voltage connections
Eliminates the need to install multiple transducers – fewer components to install…saves time and space
Easy connection to up to 24 industry standard five-amp CTs
Modbus communications for efficient data collection
Improve monitoring system efficiencies by accessing 26 data points per circuit, plus alarms, with one RS-485 drop
Daisy chain up to 30 units on a single drop…easy wiring
Field-selectable address, baud rate, parity and wiring connections…simple configuration
Automated Logic’s ZN253 provides unprecedented power and flexibility through fully programmable networked controllers. The ZN253 controllers connect to the Building Automation System (BAS) network using BACnet over ARCNET 156 kbps or MS/TP. The ZN253 supports a line of RS room sensors using its Rnet port.
Powerful Multi-Equipment Controllers
ME 812U Line – Powerful Multi-Equipment Controllers
The ME812U controllers have the speed, power, memory, and I/O flexibility to handle the most demanding control applications in the industry. Capable of controlling multiple pieces of equipment simultaneously, this robust BACnet controller can support complex control strategies with plenty of memory for trends, and is capable of third party integration using other communication protocols.
Powerful Multi-Equipment Controller and Router
ME-LGR Powerful Multi-Equipment Controller and Router
Combining the features of our powerful multiequipment controller with a high-speed BACnet® router, the ME-LGR can do it all. Need 100 Mbps communications to a critical control site? Need to control multiple pieces of equipment at that site? Need to integrate third-party equipment on a proprietary network with your BACnet system? No problem. The ME-LGR can do it all, and it can also serve as a router to controllers on an ARCNET 156 kbps or MS/TP network.
High Speed Ethernet Router
The LGR is an extremely powerful, high-speed device router that can connect hundreds of control modules to a BACnet/IP backbone. Support for BACnet/IP, BACnet over Ethernet, ARCNET 156kbps, MS/TP, and BACnet PTP communications are standard. Optional protocol translator packages and a wide range of communication ports allow the LGR to also serve as a gateway to a wide range of open and proprietary networks. Fully programmable, the LGR can also execute complex control strategies for high level system integration.
Introduction To Building Management Systems
A BMS is most common in a large building. Its core function is to manage the environment within the building and may control temperature, carbon dioxide levels and humidity within a building. As a core function in most BMS systems, it controls heating and cooling, manages the systems that distribute this air throughout the building (for example by operating fans or opening/closing dampers), and then locally controls the mixture of heating and cooling to achieve the desired room temperature. A secondary function sometimes is to monitor the level of human-generated CO2, mixing in outside air with waste air to increase the amount of oxygen while also minimising heat/cooling losses.
Systems linked to a BMS typically represent 40% of a building\\\’s energy usage; if lighting is included, this number approaches 70%. BMS systems are a critical component to managing energy demand. Improperly configured BMS systems are believed to account for 20% of building energy usage, or approximately 8% of total energy usage in the United States.
As well as controlling the building\\\’s internal environment, BMS systems are sometimes linked to access control (turnstiles and access doors controlling who is allowed access and egress to the building) or other security systems such as closed-circuit television (CCTV) and motion detectors. Fire alarm systems and elevators are also sometimes linked to a BMS, for example, if a fire is detected then the system could shut off dampers in the ventilation system to stop smoke spreading and send all the elevators to the ground floor and park them to prevent people from using them in the event of a fire.
Functions of Building Management Systems
The three basic functions of a central, computer-controlled BMS are:
the building’s facilities, mechanical, and electrical equipment for comfort, safety, and efficiency.
A BMS normally comprises of:
• Power systems
• Illumination system
• Electric power control system
• Heating,Ventilation and Air-conditioning HVAC System
• Security and observation system
• Magnetic card and access system
• Fire alarm system
• Lifts, elevators etc.
• Plumbing system
• Burglar alarms, CCTV
• Trace Heating
• Other engineering systems
• Home Automation System
• Fire alarm and Safety system
Benefits of BMS
• Good control of internal comfort conditions
• Possibility of individual room control
• Increased staff productivity
• Effective monitoring and targeting of energy consumption
• Improved plant reliability and life
• Effective response to HVAC-related complaints
• Save time and money during the maintenance
• Higher rental value
• Flexibility on change of building use
• Individual tenant billing for services facilities manager
• Central or remote control and monitoring of building
• Increased level of comfort and time saving
• Remote Monitoring of the plants (such as AHU\\\’s, Fire pumps, plumbing pumps, Electrical supply, STP, WTP etc.)
• Ease of information availability problem
• Computerized maintenance scheduling
• Effective use of maintenance staff
• Early detection of problems
• More satisfied occupants