Description
■ DO-6850 online Dissolved Oxygen Temperature Transmitting Controller is a micro computerized precision instrument.
■ The large LCD display, English menu operation.
■ Multi-parameter display at the same time: the value of dissolved oxygen, temperature, output current, alarm points, etc. Intuitive and easy to read, and alarm for range over run
■ Screen displays alarm status and accompanied by a switch ON / OFF signal output.
■ Automatic Temperature Compensation: Automatic 0℃ to 60℃.
■ Communication function (optional): RS-485 communication interface (MODBUS protocol is partially compatible), 4 to 20 mA current output corresponding to the DO value can be set freely.
■ Notepad: can store 50 measurements, the user can record measurement data.
■ Hysteresis amount can be set freely to avoid frequent switching relay action.
■ Watchdog function: to ensure that the instrument will not crash.
■ Core devices from famous foreign brands.
■ Restore the factory settings. Power-down protection> 10 years.
Main technique Specification
|
Function Model |
DO-6800A, B, C online Dissolved Oxygen Temperature Transmitting Controller |
|
Measuring Range |
0.00 – 20.00 mg /L (ppm) 0 – 200.0 ug /L (ppd), (optional) 0-60℃, 0-100℃ (optional) |
|
Resolution |
0.1 ug/L, 0. 01 mg/L, 0.1℃ |
|
Accuracy |
ug/L: ±1.0%FS; mg/L:±0.5%FS, ±0.3℃ |
|
Display |
Large Screen Multi-parameters LCD |
|
Temp. Compensation |
NTC 10K, 0.0℃-60.0 ℃, 0-100℃ (optional), Automatic temperature compensation |
|
Current output |
isolation to protect, 4 ~ 20mA signal output |
|
Control output |
two sets of ON / OFF relay contacts, divided into the high point, low alarm signal, optically isolated output. |
|
Communication output |
Standard Modbus RS485 function to PC (optional) |
|
Contact capacity |
10A/220V AC (Resistive Load) |
|
Output load |
load <500Ω (0-10mA), load <750Ω (4-20mA) |
|
Power |
AC 220V±10%, 50/60Hz |
|
Working environment |
Ambient Temp. 0-60℃, Relative Humidity ≤90% |
|
Dimensions |
96×96×115mm(H X W X D), 0.9kgs |
|
Hole size |
91×91mm H X W) |
|
Installation Mode |
Panel Mounted |
|
Protection grade |
IP57 or IP 65 cover |
Application
Widely used in the detection and control of dissolved oxygen in various water treatments, boiler water deoxygenization, environmental monitoring, aquaculture and other fields.
