YCH211 is a general-purpose Two parameter controller, which realizes plug-and-play sensor and real-time display of measured values; electrode installation and replacement are quick and easy; with RS485 output and upper and lower limit alarm functions. The interface is simple and easy to operate.According to the different needs of customers, the controller connection includes dissolved oxygen, pH, ORP, COD, conductivity (salinity), turbidity, suspended solids, sludge concentration, chlorophyll, blue-green algae, oil in water and other parameters.

Product Features

✅Plug and play, easy to operate.

✅With digital communication function, can be connected to the upper computer.

✅With relay alarm setting function, the hysteresis amount can be freely adjusted to avoid frequent switching of the relay.

✅Password management function to prevent misuse by non-professionals.

✅Wall-mounted design, small size, reliable and durable.

✅4-20mA current output function can be optional at the time of purchase, which is convenient for data acquisition by the control center.

Technical parameter

Name	Two parameter controller
Model	YCH211
Display	LCD backlight
Power Supply	220V AC or 24V DC
Alarm output	Normally Open Contact Relay (3A/220VAC)
4-20mA	Standard 2 channel (Optional)
Data storage	Support
Power consumption consumption	4W
Material	ABS housing
Output Signal	Support RS-485/Modbus protocol
Size	144mm*144mm*115mm (height*width*thickness)
Installation method	wall-mounted