Gemlog Controls Ltd.

 

Gas Detection
Gas leak detection is an important part of every plant safety program. Many industrial processes require the use of potentially toxic gases and other processes may generate hazardous gases as a byproduct. Such hazards can be managed through careful equipment maintenance and regular monitoring for early signs of leakage.

PortaSens II

Features :

  • Interchangeable "Smart Sensors" for over 30 gases
  • Internal sample pump and external sample wand
  • One-handed pistol grip design
  • Standard "D" cell battery and rechargeable backup battery
  • Easy to read back-lit graphics liquid crystal display
  • Instantaneous and timed-sampling modes of operation
  • Visual and Audible alarms Internal data-logger with RS-232 output

The Series C16 PortaSens II portable gas leak detector is a versatile tool for performing regular leak checks in gas storage areas, around process equipment and piping, or in confined spaces prior to entry. Designed for easy one-hand operation, the detector contains an internal sample pump and a flexible sampling wand to allow pinpoint location of the source of leakage. A large character display insures that measured values are easily visible, and a back-light for the display insures readability in low or no light conditions.

 
GasSens Monitor and Sensor  
GasSens is a flexible component system providing a variety of options to meet individual gas detecition and alarm requirements. From chemical and petrochemical plants to food processors, the GasSens system can be applied to the simplest or most complex gas detection application. Economical and low maintenance, this system is your best choice for reliable leak detection.
Receiver modules provide the electronic brains for the detection and alarm system. Each compact module includes a digital display of gas concentration, isolated analog output,and 4 relay outputs. Receivers may be located up to 1000 feet from sensor/transmitters for remote indication, or can provide local control function such as valve shutoff while transmitting a 4-20 mA signal to remote displays or data loggers.
Sensor transmitters are available in either NEMA 4X or explosion-proof versions and can be supplied with exclusive Auto-Test automatic sensor testing system, greatly reducing operator testing requirements.
     
     

UniSens - Universal 2-wire Gas Transmitter

Time was, monitoring multiple gases meant using different gas transmitters - each with its own maintenance problems, its own appetite for spare parts, its own installation headaches, and so on, and so on. Never again, our UniSens universal 2-wire gas transmitter handles 29 different gases, providing the most economical and flexible gas measurement system available today. Combining universal electronics, bench calibration capability, automatic sensor verification, fault detection and alarming, and superior sensor technology, UniSens is your best transmitter choice. UniSens is designed for ambient gas monitoring in all kinds of industrial environments: gas storage areas, gas compressor rooms, process piping galleries, rail car sidings, analyzer shacks, gas cabinets, chemical process areas, and more. In fact, the UniSens transmitter can be used most anywhere that hazardous gas conditions might develop either through leakage or through natural buildup.

 

 

 Sensing modules consist of an electrochemical gas diffusion sensor and a solid state memory assembly. Our electrochemical sensors provide excellent response time, maximum selectivity, and superior temperature stability for reliable gas sensing in a wide range of environments. The companion memory assembly stores operational information and calibration constants, along with gas sensor identification, sensing module range, and software revision level. Complete sensing modules are housed in convenient snap-in packages that mate easily with UniSens transmitters. This unique combination of sensor and memory lets you calibrate sensing modules with any UniSens transmitter. So instead of calibrating in the field, you can bench calibrate sensing modules with a spare transmitter; once the sensors are snapped into a field transmitter, their calibration constants upload automatically.
Powered by an ordinary C cell, the Sensor Keeper maintains sensors in stable operating condition for up to 6 months. Sensor Keepers are useful not just for transporting sensors to and from the field, but for keeping calibrated spares on the shelf. They also let us calibrate sensors at the factory, and ship them for immediate installation and use.
  • Interchangeable Sensing Modules
  • Auto-Test Sensor Verification
  • Non-Intrusive Magnetic Controls
  • 29 Different Gases
  • Off-Site Calibration
  • Integral LCD Display
  • Output Simulation
  • CSA Approved
  • Intrinsically Safe & Explosion Proof

The UniSens microcomputer-controlled transmitter provides a local digital display and a 4-20 mA analog output proportional to gas concentration. It works with any of our sensing modules, configuring its own display and output range automatically based on data read from the module's memory. Zero and calibration data is also read into memory, so the transmitter is automatically calibrated when it's connected to a calibrated module. Magnetic controls on the front of the transmitter allow field calibration, manual activation of the Auto-Test feature (if installed), and review of sensing module data including gas type, range, and number of successful Auto-Tests. The transmitter can also act as an analog output simulator to facilitate complete loop testing. Outputs of 4.0,12.0, and 20.0 mA are selectable via the front panel, along with a trouble signal of 3.6 mA. The transmitter is housed in a durable cast- aluminum shell with an 11-pin octal base for easy installation and removal. And since UniSens transmitters are 100% interchangeable, one unit can serve as a backup for every type of gas in use