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Chemical Equipment Update

This rugged, NEMA-4 sealed, single-piece integrated sensor offers powerful features to handle nearly any temperature measurement requirement. Although small in size, the Raytek CM outperforms

competitive temperature measurement sensors at nearly twice the price. The sensor insures a consistent manufacturing process and allows tighter tolerances on heating processes, reducing heating costs while improving process throughput and product quality (Fig. 1). Designed for easy integration, the CM sensor can easily

replace traditional contact probes with a J-type or K-type thermocouple output, or with a user-scaleable 0-5 volt output, if the application is susceptible to noise. According to the company, the CM includes precision, high-

resolution silicon optics, providing excellent optical resolution at a very attractive price. An RS232 digital interface allows the user to configure

all programmable sensor variables via the powerful Raytek DataTemp Multidrop software. These include a 24 volt DC alarm output triggered by target temperature or head ambient temperature; peak hold, valley hold or variable averaging signal processing; adjustable target emissivity settings; and adjustable window transmissivity setting. A built-in sensor health LED provides a convenient

on-line indicator of the sensor’s operating status and aids in troubleshooting initial sensor set up. A remote configuration capability allows it to be configured

for virtually any application, reducing installation and troubleshooting time, and streamlining data acquisition. This feature also eases troubleshooting when the sensor is located in a hostile or remote location. The sensor is designed to measure target temperatures

ranging from -20°C to 500°C. Its onboard electronics are protected by a rugged IP 65 (NEMA-4) stainless steel housing, allowing the sensor to function in ambient temperatures to 70°C without cooling.

For its part, the new optoNCDT1402 laser sensor from Micro- Epsilon replaces the company’s previous optoNCDT 1401 product. The new sensor provides improved performance and

extreme flexibility. This flexibility comes from a brand new Teach-In function, which can be used to limit or change the measuring range for each application. In this way, both the resolution and the linearity of the sensor in the pre-set measuring range can be significantly improved. This is of particular benefit in applications where only a small measuring range but high performance is required. The flexibility of the optoNCDT 1402 is further enhanced

by an integrated swivelling cable connector, which can be used to change the direction of the cable output to suit the individual application. By utilising a CMOS sensor, the optoNCDT 1402 has an

increased measuring rate of 1.5kHz making it suitable for rapid processes. An RS422 digital interface is provided, as well as analogue current/voltage output. As before, the new series comprises seven sensors, which have

measuring ranges between 5mm and 250mm. Together with the integrated controller, the very compact design makes mounting faster and easier and installation is possible in restricted spaces. Due to its very effective, real time compensation process for the changing reflection characteristics of different target surfaces, the company says its optoNCDT 1402 sensor is universally adaptable to a wide range of tasks. In other supplier news, BetaTherm Sensors offers a

competitive range of chip-based thermistors and probe assemblies for temperature measurement, temperature control and compensation applications in most sensing situations Meanwhile, Thermo Est thermocouples offer a temperature

range from from -200°C to 2400°C and are resistant to pollution and corrosion. This ensures a range of themocouples that are ideally suited for all applications including nuclear, process industries, laboratories and testing situations. ❒

Gear pump for high viscosity media

applications with medium to high viscosity media.

M

The cinox-V/therminox-V stainless steel pump is ideal for all plant operators with difficult applications at low inlet pressures (vacuum) and high levels of viscosity (up to 4 million mPas), eg resins, fats, silicones, sucrose esters or prepolymers. It can be used at temperatures up to 350°C.

The inlet geometry ensures even filling of the gears at low pressure to safeguard continuous production flow. Two versions are available. The gear pump with round inlet geometry is offered as variant one. The ANSI standard flange is connected to the discharge

8 www.engineerlive.com

flange of the reactor (thin-film evaporator). On the second variant the pump connection flange is omitted and the gear pump is directly connected to the reactor (sandwich design). This solution is particularly optimised

aag Pump Systems offers a discharge pump with special inlet geometry for industrial

for reactors under a vacuum. The reduced distance between the reactor and the gear pump makes it possible to work at a low NPSH value. The gears are only a few millimetres under the flange mounting surface of the thin-film evaporator. The medium is discharged directly on the gears. The V series can be supplied with heated and unheated housings – the choice is yours. In addition, a packing gland can be used, throttled and spring-loaded as an option. This prevents the medium from reacting with

oxygen. ❒

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