
144*144 microcomputer-designed conductivity controller
The outdoor waterproof and dustproof design is suitable for wall installation, coil installation and round pipe installation
Measurable indicators include conductivity, specific resistance, salinity and TDS
It is equipped with a backlight sensor and has both automatic and manual backlight setting functions
Provide contact points for the automatic electrode cleaning device and program setting output
Large LCD display screen, with operation status and special symbol display
It can be connected to two-pole or four-pole conductivity electrodes
With automatic correction; Manual and automatic temperature compensation functions
The password lock and combination key enter the setting and calibration mode design to enhance security protection
It has the RS-485 standard MODBUS communication protocol and can be directly connected to the digital system (MB-300-CN-RS serial only).
Two sets of programmable outputs (MB-300-CN serial only)
TDS is optional



Ac power supply: 100V to 240VAC±10%, 50/60Hz
Dc power supply: 20 to 40VDC
Operating temperature: 0-50℃
Instrument dimensions: 144mm×144mm×115mm (H×W×D)
The protection grade complies with IP65 (NEMA 4)
Installation methods: wall mounting, panel mounting, and round pipe mounting
Hollowed-out dimensions: 138mm×138mm (H×W)
Weight: 0.8Kg

QR-DO-108
QR-DO-108-D (20-40VDC)
QR-DO-108-RS (RS-485 output)
QR-DO-108-DRS (20~40VDC) RS-485 output
Selection
MCS1407 quadrupole conductance electrode
MCS1201/MCS12001 Bipolar conductivity electrode (suitable for low conductivity range)
1413µs/cm standard solution