084B4081
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The 084B4081 case controller operates within a supply voltage range of 115 to 230 V, supports Modbus communication, and includes five analog inputs and four digital outputs. Part of the AK-CC55 Case Controllers series by Danfoss, it features ratiometric pressure transmitter support and has a net weight of 226 grams.
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Product Description:
The Danfoss made Controller 084B4081 works with a supply voltage between 115 and 230 volts to be compatible with varied power infrastructures. With a weight of 226 grams, this controller is light but durable for mounting into control panels or small enclosures.
The 084B4081 controller is built for use in 50 Hz and 60 Hz frequency systems to operate stably across international power standards. This controller's 5 VA power consumption provides a minimal energy requirement in continuous operation in high-demand environments. Its five analog inputs allow flexibility to use temperature, pressure, or process sensors. There is also a separate analog output for controlled signal delivery to associated equipment. This controller uses MODBUS protocol for communication, making it easy to integrate into supervisory control systems and remote monitoring platforms. This controller also has one digital input for the external triggers and four digital outputs to control actuators, alarms, or other control devices. This controller accommodates a single evaporator, matching its capacity to single-evaporator refrigeration systems. The 084B4081 controller accommodates NTC 5000 and NTC 10000 sensors for precise low-temperature measurement. It also accommodates PTC 1000 and Pt 1000 sensors, allowing stable readings over long ranges.
This 084B4081 controller's sensor connection is done using screw terminals, providing mechanical stability and secure mounting in applications with high vibration. In addition, the ratiometric pressure transmitter support is available with this controller, which makes it ideal for pressure-sensing processes involving proportional signal measurement. In this controller, the availability of electronic product data (EPD) ensures access to verified environmental and compliance data, which facilitates sustainable system integration. For refrigeration control, this controller includes AKV and TEV valve output types for effective refrigerant flow regulation to maintain optimal system balance.
Frequently Asked Questions about 084B4081:
Q: Why does the Controller 084B4081 support both NTC and PTC sensors?
A: Supporting NTC 5000, NTC 10000, PTC 1000, and Pt 1000 sensors allows the controller to handle varied temperature ranges and improve measurement flexibility.
Q: What advantage does the ratiometric pressure transmitter support provide?
A: Ratiometric support enhances pressure measurement accuracy by eliminating errors caused by supply voltage fluctuations. This ensures stable and consistent control under different load conditions.
Q: How does the single analog output in 084B4081 benefit system control?
A: The analog output allows precise modulation of connected devices. It enables proportional control for functions like speed regulation or valve positioning.
Q: What is the role of the four digital outputs in the controller?
A: The outputs allow control of external devices such as alarms, fans, or relays. They expand system functionality and automation capability.
Q: How do the screw terminals improve reliability during installation?
A: Screw terminals provide a secure mechanical connection for sensors and wiring. This minimizes vibration-related faults and ensures long-term stability.
