①, self-cleaning sensor probes can be set the cleaning time and interval time

Secondly, a key recovery (if not full-time operators, to misuse the instrument, through the recovery key, return to factory settings)

Thirdly, multiple parameters simultaneously displayed (temperature and mg/L on screen display)

Black, manual/automatic temperature compensation: when an external component with automatic detecting and warm, auto-compensation instrumentation, no time, automatic to manual

⑤ automatic alarm function: alarm output, alarm on, the lower limit can be set, alarm lag to withdraw

⑥, auto detect: instrument every time you boot, detect if the parameters in the normal range, is not within the normal range, reversible or amended

Sadly, industrial control-type watchdog: ensure that instruments don't panic don't panic design: chip with dedicated watchdog timer, if an exception occurs when the meter, automatic reset

H, line numerical correction function

Technical parameters:
1, the measurement range: 0.0~199.9ug/L 0.00~19.99mg/L
2, resolution: 0.1ug/L 0.01mg/L
3, zero point adjustment range: 200ug/L
4, the slope calibration range: 20%~180%
5, temperature compensation: 0~45℃ (automatic or manual)
6, relay control range: 0.00~19.99
7, automatic cleaning time: 1s~99m59s
8 cleaning interval: 1~720min
9, two sets of signal output: isolated 4~20mA
10 communications interfaces: RS232 or RS485 (optional)
11, the working voltage: AC220V ± 50/60Hz
12, size: 144*144*210mm
13, hole size: 138*138 mm
14, installation: flush mounting
15, the working conditions of the instrument:
① environment temperature:-5~55℃
② Air relative humidity: ≤ 90%
③ In addition to the Earth's magnetic field around strong magnetic field interference

Electrode installation: flow-through/sunken/flange/pipe/side-wall · · ·

Standard configuration: table II, dissolved oxygen electrode, buffer a dissolved oxygen bottles, spare membrane first, manuals, instruments fixed locking a pair).