Type Y8WJ-Z - Electronic Temp. controller, double digital display, multi-sensors, PID or ON-OFF action, heat trace pipe temperature control, vertical foot mounting on pipe
These waterproof control boxes designed for vertical mounting on pipes allow to control the surface temperature of pipes on site. The connection to the heating elements and the temperature sensor is made by a pipe mounting foot incorporating the seal.
The electronic controller used is designed to be the most universal. It is totally configurable. Its use requires reading and understanding of its instructions of use.
It includes an auto-tune function allowing automatic adjustment of PID parameters. The incorporation of a microprocessor using Fuzzy Logic technology makes it possible to reach a predetermined setpoint as quickly as possible, with a minimum of overheat during disturbances related to the ramp-up or the external load.
A 20A 250V solid state relay board is included in standard.
The temperature sensor input is configurable, and in particular allows the use of Pt100 RTD.
The use of a wired temperature measurement sensor, which can be disconnected, allows to overcome the problems of wall crossing of bulb thermostats, the capillary of which cannot be cut, and to proceed with installation of connection and control boxes after mounting the heating cables and the temperature sensor, installation of the pipe insulation and installation of the insulation protection sheath.
Enclosure: IP69K, reinforced PA66, with polycarbonate window access. Sealable cover and window.
Wall mounting: Four removable and rotatable legs.
Assembly: Pipe mounting by PPS foot with heating cables crossing watertight seal. Two passages are provided in the foot for tightening it on the pipe by two nylon ties or metal hose clamps.
Cable gland and foot: Mounted on a removable board, facilitating assembly. This board has an M25 cable gland for the power supply cable. The heating cables exit through the foot. (The PPS foot is shipped unassembled on the box)
Foot gasket: Is mounted inside the foot as standard, a silicone seal designed for two heating cables and one hole for temperature sensor cable dia. 2 to 3mm. (For more information about these seals, see the catalogue page on 6YTPP pipe mounting legs)
Accessories: Are included two flexible boots in silicone with two bus wire funnels, length 100mm, intended to shield the conductors of the self-regulating cables after cutting off the heating zone. (For more information about these boots, se the accessories pages 6YTNB in this catalogue).
Electrical connection: On internal terminal block with screw terminals
Cable gland: One M25 cable gland for the power supply cable.
Switching devices: Main illuminated switch and safety fuse Controller: Double display, of process value and of setpoint
Action: PID with automatic parameters adjustment by auto-tune function. It can also be set in ON-OFF action with adjustable differential
Sensor input: Configurable for Pt100, K thermocouple and other sensors
Power output: 20A 230V solid state relay.
Alarm: 3A 230V relay.
Display: 4 digits display configurable in °C or °F
Power supply: AC 220-230V 50-60Hz.
Accuracy: ±1°C (±2°F) or 0.3% end of scale ± one digit.
Self-testing: Over-scale, under-scale, and open sensor circuit.
Ambient temperature: -10 to 60°C, 20 to 85% relative humidity, non-condensing.
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