A L M Engineering & Instrumentation Private Limited Kurla, Mumbai, Maharashtra

The Ventostat 8000 Series represents a full range of wall mount CO2 and temperature transmitters with display options plus active humidity and temperature outputs.

The Series TDS Thermal Dispersion Flow Switch offers solid state flow detection of non-coating liquids for pump and process protection. SPDT output allows for interfacing with remote PLC or relay control device. The adjustable switch point is factory calibrated at 0.2 fps with LED indication of flow and calibration status. Units feature selectable NO or NC operation and are not damaged by over-ranging flow velocities.

The Series WWDP Wet-to-Wet Differential Pressure Transmitter offers everything in one package by having 30 field selectable variations in just 3 models. The WWDP provides field selectable unidirectional and bidirectional pressure ranges, configurable 0-5, 1-5, 0-10 VDC, and 4 to 20 mA output. It also provides an auto-zero capability. The field selectable port swap feature eliminates costly replumbing if the unit is improperly installed or if the transmitter is simply replaced. An optional LCD display is available for on-sight indication of line and differential pressure. The all cast aluminum housing is rated NEMA 4 (IP66). These features make the WWDP transmitter an ideal instrument for measuring the flow of various liquids and gases, pressure drop across filters, measurement of liquid level or pressurized vessels, and for use in energy management and process control systems.

The Series WPH2 pH Testing Pen accurately monitors pH and temperature levels in a variety of applications. This pocket-sized tester is ideal for pH level measurements in lab environments, industrial plants, or field enviornmental testing. It features an easy to replace electrode and automatically recognizes up to 3 calibration buffer solution ranges. Both pH and temperature, in both English and Metric units, appear on the large dual display. Both the electrode and battery compartment caps are sealed to provide an IP65 weatherproof rating.

The Compact Series WHT HumidityTemperature Transmitter is designed to withstand the elements. A removable sintered filter protects the polymer capacitance sensor from solid objects that may come in contact with the transmitter. The transmitter is available with 4 to 20 mA or 0 to 10 VDC output signals for both temperature and humidity. This transmitter is ideal for measuring outside air temperature and humidity levels for air handling economizer applications.

The Series WDG Weatherproof Digital Pressure Gage measures gas and liquid pressure with high accuracy at an affordable price. It’s rugged weatherproof design stands up to outdoor and industrial environments. The 4-digit backlit display with four selectable units makes readings easily visible to prevent reading errors. The WDG comes with 304L stainless steel wetted material for a wide range of compatible liquids and gases.

The Series VTT Hot-Wire Air Velocity and Temperature Transmitter provides a versatile unit for air velocity and temperature needs. The VTT offers five field-selectable ranges as well as operating in metric (ms, °C) or English (fpm, °F) units. The VTT can measure up to 30 ms (6000 fpm) and 50°C (122°F). The units are available with or without an LCD display which alternates between velocity and temperature. Series VTT can be ordered in duct mount or remote mount configurations with 4-20 mA or 0-10 V outputs. The VTT is a useful transmitter for many common HVAC applications.

The Series UGJ Utility Gages possess dual psi and bar (x100 kPa) scales with 2.5% accuracy. The 2" UGJ gages are designed with black steel housings. Wetted parts include a brass socket and phosphor bronze tube. A wide offering of ranges are available from full vacuum to 300 psi.

1.5" Dials with Back Connection; Dual PSIBar x100 kPa Scales The Series UGI Utility Gages possess dual psi and bar (x100 kPa) scales with ±2.5% accuracy. The UGI gages are designed with black steel housings. Wetted parts include a brass socket and phosphor bronze tube. A wide offering of ranges are available from full vacuum to 300 psi. The center back mounting and compact size makes this gage the perfect choice for pneumatic air regulators.

The Series TRI2 combines the value of an individual pressure gage and thermometer in one instrument. These tridicators simplify installation which reduces time and saves money. The moveable dial with blue pressure markings and red temperature markings make the instrument easy to read. Pressure is indicated in both psi and kPa, while temperature is measured in both Fahrenheit and Celsius. Series TRI2 comes in three different connection options including lower mount, center back mount, and center back mount with extension shank.

The Series TPT Pressure Transmitter is the ideal choice for all types of industrial pressure applications. Machined from a solid piece of 17-4PH SS, the TPT provides a leak proof, all metal system without O-rings, welds, or organics exposed to the pressure media. Its design allows for stable operation when subject to shock and vibration. Utilizing piezoresistive technology with digital compensation and temperature correction, the TPT gives high accuracy and stability under harsh environmental conditions. Available in ratiometric and 4 to 20 mA outputs.

The Series TP2 Thermocouple Thermometers can accurately measure a large temperature range for a wide range of applications including food, safety inspection, lab testing, and HVAC. This hand-held thermometer offers three models that measure the probe temperature, ambient temperature, and relative humidity. Additional features include a data hold function, highlow audible alarm, and auto power off. Device includes a K type probe and battery.

The Series TIC Thermal Imaging Camera allows users to see heat contrasts to prevent plant equipment failures, detect air leaks in buildings, and many more applications. Infrared radiation is given off by objects according to how warm they are, and the camera translates the measured levels into visual light on the bright 2.5" 160 x 120 resolution LCD. For increased differentiation among temperatures, the camera can automatically adjust the color band for a narrower range of temperatures throughout the �4 to 482°F ( -20 to 250°C) temperature range of the camera. Besides taking spot measurements, the camera can also be set for isothermal, area, or profile analysis. All cameras include a Li-Ion battery, battery charger, docking station, SD memory card, SD memory card reader, sun shield, lens cap, video cable, standard reporting software, and a calibration report. A Bluetooth® earphone and USB cable are also included in TIC-30 units for making voice annotations and real time recording. Up to 9 movable temperature spots can be selected to get specific temperature measurements of objects on the display. On the TIC-20 and TIC-30, there are flash, visual light camera, and a laser pointer to help identify the objects in the picture better. The visual image can be blended with the thermal image for better illustration of where the hot or cold spots are in the image.

Simultaneously measure and control temperature and humidity with the Series THC TemperatureHumidity Switch. The unit offers a 3-digit red display for temperature indication and a 3-digit green display indicating humidity. The Series THC is equipped with four independent relays, two for temperature control and two relays for humidity control. The unit offers 61 programmable parameters for temperature and humidity control including set point, differential, directreverse acting, cycle time, alarm clock time, and decimal point adjustment. In the event of a probe error, the default operation of the relays can be set to open or close. The THC features error or alarm messaging and password protection. The THC TemperatureHumidity Switch accepts up to two temperature probe inputs (sold separately) and a humidity sensor. A humidity sensor with 0-1V, 0-3V (sold separately), or 4-20 mA output can be used with the Series THC.

The Series TAC3 Pocket Tachometer measures and displays rotational speed of saw blades, grinders, engines, motors, and conveyor belts. The unique ergonomic design provides direct line-of-sight viewing of display and target. Easy-to-read 5-digit alphanumeric dual LCD also displays on-target, continuous measurement, laser and low batter indication. Measurements of up to 999,999 can be viewed with the onscreen multiplier. The Model TAC3 is a 32 function tachometerratemeter, totalizercounter, and timer. It is programmable to read in English or Metric units. An input socket accepts remote sensing devices and an output socket allows for pulse output to external indicating devices. The Model TAC3 can be tripod mounted and “Locked-On” for accurate and continuous operation. This tachometer also stores minimum, maximum, and last measurement in memory. Model TAC3K Kit comes with tachometer, plastic case, remote contact assembly, concave and convex contact tips, 3.9 in. (10 cm) circumference contact wheel, NIST certification, and 5 ft (1.5 m) of reflective tape. Optional TAC3-91 Remote Optical Sensor allows this unit to measure rps, rpm, or rph in hard to reach locations.

The Series STRA Airflow Measurement Station is easy to install -- simply connect the tubing to the station fittings, then to a differential pressure manometer, gage, transmitter or switch. Single or multiple airflow elements are factory mounted and pre-piped in a casing designed for flanged connection to the duct work. The Series STRA utilizes an airflow averaging element in a head-type device, generating a differential (velocity) pressure signal similar to the orifice, venturi, and other head producing primary elements. It has been developed with a honeycomb airflow straightening section for use in duct systems having highly turbulent conditions at the point of measurement. Strategically located sensing ports continually sample the total and static pressures when inserted normal to flow. Total pressures sensed by the upstream ports are continually averaged within the airflow element in an isolated chamber. The static sensing ports are averaged in a second isolation chamber. Multiple elements are joined together for connection to a differential measurement device (gage, transmitter, etc.) for flow measurement and indication purposes.

The Series SGXSGF Gages have dual Englishmetric scales with ±1.6% full scale accuracy. The Series SGXSGF gages are designed with 304 SS housings and brass or 316 SS wetted parts. Units can withstand ambient temperatures up to 149°F (65°C) and process temperatures up to 212°F (100°C). Ranges of vacuum, compound and pressures to 235" w.c. are available. Included on the dial is a convenient zero adjustment screw which allows the user to easily re-zero the needle.

The Series SGP Gages have dual Englishmetric scales with ±1.6% full scale accuracy. The Series SGP gages are designed with 304 SS housings, a 316L SS chamber and a 316 SS diaphragm for excellent chemical compatibility. Units can withstand ambient temperatures up to 149°F (65°C) and process temperatures up to 248°F (120°C). Ranges of vacuum, compound and pressures to 235" w.c. are available.

The Series SGO Gages have dual Englishmetric scales with ±1.6% full scale accuracy. The Series SGO gages are designed with 304 SS housing, a 316L SS chamber and PTFE coated diaphragm for excellent chemical compatibility. Units can withstand ambient temperatures up to 149°F (65°C) and process temperatures up to 248°F (120°C). Ranges are available from full vacuum, compound to 300 psi.

The Series SG5 Contractor Gages are ideally manufactured for contractors because of their large dial and compact design. Since the gages are lightweight and slim, they are easy to transport. The large 4.5" scale makes them simple to read. The Series SG5 gages possess psi scales with 1% full-scale accuracy. The gages are made with a stainless steel housing and brass wetted parts. Units can withstand temperatures of -4 to 140°F (-20 to 60°C). These qualities make the SG5 series perfect for contractors and industrial applications. A wide offering of ranges are available from full vacuum to 300 psi.

SAH Dwyer SMART Air Hood Balancing Instrument Dwyer SMART Air flow hood Balancing Instrument is the most accurate and easy to operate air flow hood in market. By using this hood stand and wireless communications to the handheld, a single operator can balance in less time than traditional balancing hood. PredictAir Application Software: The PredictAir application software displays flow measurements from Dwyer's SMART Air Hood Balancing Instrument

Weatherproof and Explosion-Proof in One Economical Enclosure Extremely rugged construction assures excellent reliability in chemical, petroleum and industrial plants. New design also provides burst pressure protection to 3000 psi (206 bar). The rolling diaphragm design maintains a constant effective area to minimize friction. This results in a minimum deadband as low as 5% of full scale. Since many applications require higher deadbands, the SA1100 includes a separate adjustment of this when necessary. A pump being used to control liquid level in a tank would be a typical situation where this feature would be important. Both setpoint and deadband adjustments are protected, yet clearly visible behind a clear polycarbonate window and are fully isolated from the electrical components for additional safety. A 716" open-end wrench is the only tool required to change settings. Terminal blocks are provided for switch wiring connections and both internal and external ground screws are included. Standard housing is weatherproof to NEMA standards 1 through 4X and 13; explosion-proof to NEMA 7, Class I, Groups B, C & D; NEMA 9, Class II, Groups E, F & G. Optional construction adds drain to meet NEMA 3R IP54.

The Series RSM Room Status Monitor is designed for critical low differential pressure applications that require stringent pressure monitoring and alarming. The Series RSM can be configured to monitor positive or negative pressure in protected environments and hospital isolation rooms per CDC guidelines. The RSM is a complete system that includes a backlit RGB LCD display with a graphic user interface which enables access to pressure, security, calibration, and alarm setup. The touch-screen displays menus that guide the user through setup, as well as setting up password protection. Red and green LED's and a local audible alarm (with time delay feature) alert personnel to system status. The RSM has a NEMA 1 (IP20) rated fire retardant plastic for indoor applications. True differential pressure is displayed with a resolution of 0.001 in w.c. The very low pressure capacitance is dead ended and avoids the potential for cross contamination of the room and reference space as well as eliminating drift that results from fouling of flow based sensors, which by nature have a flow path connecting the protected and reference spaces. Additionally, there are two levels of password protection available as well as optional BACnet MSTP communication. A calibration certificate is provided with every unit.

The Series RHRS Radiation Shield protects outside air humidity transmitters from rain and radiated heat. With the curved shape and color of the plates, air flow is able to move across the sensor to keep radiated temperatures from rooftops and surrounding surfaces from affecting humidity readings. For ease of installation, the Series RHRS has integral pipe mounting hardware which can be removed for surface mounting applications. The brackets on the Series RHRS are specifically designed to be installed on the Dwyer Series RHP outside air humidity transmitters with sintered filters. The pipe mounting bracket fits 34" to 1-12" iron pipe.