Process Trainer, Temperature

#602

The DAC Process Trainer, Temperature, provides a realistic working fluid process designed for hands-on instrumentation and control training. The trainer is used to teach process measurement and control fundamentals relating to temperature and dependent variables using a classic shell and tube heat exchanger application. The device allows control loops to be configured employing feedback and feed-forward control methods using thermocouple and RTD inputs. Variable demand and supply disturbances are inserted using solenoid valves in combination with metered ball valves. This arrangement provides step-change disturbances for performing and verifying controller tuning. The integral heat exchanger and heater system provides an extremely dynamic temperature control system. Both hot and cold legs can be controlled. Common cold tap water is used as a cooling water source and is applied through industrial-quality, valved, quick-disconnect fittings. Piping is high heat-resistant PVC. The unit contains a 24 VDC power supply and two air regulators with gauges. All instrument electrical power supply and air sources are conveniently located on the front panel face. Most importantly, the device can be outfitted with custom instrument and control components to match site-specific training needs. Generic instrument and control packages are also available for applications where specialized components are not necessary. This device will make training in temperature measurement and control more realistic, efficient and effective in industrial training programs as well as within the technical college setting.

FEATURES Welded aluminum structural frame. Kydex-covered front panel face. Polyethylene reservoir. High temperature PVC piping. Instrument mounting taps throughout. (4) Thermometers. (8) Thermowells. Industrial quality, shell and tube heat exchanger. Controllable heater. Solenoid valve, allowing for flow disturbances. Electrical and pneumatic "free line" connections on panel face allowing convenient hook up to control rack components. Industrial quality control valve and 3-way valve. (2) Variable-area flow meters. (2) Orifice mounting locations with plates. Industrial-quality centrifugal pump. Castors, allowing for portability and convenient storage. Provision for connection to other process training devices relating to pressure, level and flow by way of quick-disconnect hose fittings. Mounting stanchion allowing for instrument mounting and elevation adjustment. Integral, side-mounted, instrument mounting rack, 19" x 70", allowing for mounting of control components. Instrument electrical supply and pneumatic supply connections located on front panel face. GFI circuit breaker protection and internal 24 VDC power supply. Overall size 48"W x 75"H x 35"D (300 lbs.). Crating for shipment via motor freight.

OPERATIONAL FEATURES Measure and control temperature within a 30 degree range, Fahrenheit. Can be easily connected to other process trainers allowing for more advanced control schemes. Compatible with a wide range of instruments and controls. Easily modifiable to incorporate unique operating features and control/measuring equipment.