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128 * 64 dot-matrix LCD display, switchable in Chinese and English, IP65 protection level, all-weather stable operation
simple menu design, simple and convenient operation, graphical prompt, beautiful and clear interfacesoftware digital filtering is adjustable, with enhanced hardware resistance to interference, making measurements more stable and adapted to complex industrial environments
global access power supply 85~260VAC, but also customized DC model 18 to 36 V D C
RS-485 digital interface, MODBUS-RTU communication protocol, read and write two-way communication, can achieve remote complete control of the instrument
The is compatible with two types of electrodes, 400nA or 80nA
Aquaculture Industrial process Boiler water Circulating water
oxygen concentration DO mg/L | measuring range | 0.00~40.00 mg/L |
resolution ratio | 0.01 mg/L | |
Measurement accuracy (electronic unit) | ±0.05 m g/L | |
Percentage oxygen content DO % | measuring range | 0.0~400.0 % |
resolution ratio | 0.1 % | |
Measurement accuracy (electronic unit) | ±0.5 % | |
temperature | measuring range | -5.0~105ºC.0 |
resolution ratio | 0.1ºC | |
Measurement accuracy (electronic unit) | ±0.3ºC | |
Temperature input | NTC22K | |
Temperaturecompensation | Automatic / manual | |
Transfer current | Output, type | Two roads of 4~20 mA (the corresponding range can be set) |
Current accuracy | ±1% F .S | |
output loading | less-than 500Ω | |
control | Functional relay | One (which can be set to the cleaning or alarm function) |
Switch relay | 2 SPST relays | |
load capacity | 2.5A 230VAC | |
data transmission | coffret | All-way RS485 isolation voltage is 2500Vrms |
protocol | MODBUS-RTU (read-write two-way communication) | |
Other parameters | working power supply | 85~260VAC or 18~36VDC (optional before order) |
working temperature | 0~60ºC | |
Work humidity | Relative humidity was <90% | |
levels of protection | IP65 | |
way to install | Disk installation | |
outline dimension | (H×W×D) 108×108×132 mm | |
Open hole size | 92.592.5 mm (positive tolerance) |
Model | Specification | images |
DO3500 | Dissolved Oxygen Controller/Transmitter | |
CS4551 | Dissolved Oxygen Sensor | |
CS4751 | Dissolved Oxygen Sensor | |
CS45513H1E | Replacement membrane cap&electrolyte Kit |

