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

②, can be a key recovery (if not a full-time operator of the instrument be misuse, through the recovery key, return to factory settings)

③, multiple parameters simultaneously display (temperature and mg / L screen display)

④, manual / automatic temperature compensation: When the external device connected to the automatic temperature probe, the instrument automatically compensates, when not connected, automatic to manual

⑤, automatic alarm function: alarm signal isolation output, alarm upper and lower limit can be set arbitrarily, alarm hysteresis withdrawn

⑥, boot automatically detect: When the meter each boot automatically detect the parameters are within normal range, not in the normal range, you can restore or correct their own

⑦, industrial control watchdog: to ensure that instruments will not crash do not crash design: with a special chip watchdog timer, when the instrument is abnormal, automatic reset

⑧, online values ​​correction

Technical Parameters:
1, measuring range: 0.00 ~ 19.99mg / L
2, Resolution: 0.01mg / L
3, zero correction range: 500ug / L
4, the slope of the calibration range: 20% to 180%
5, temperature compensation: 0 ~ 45 ℃ (automatic or manual)
6, relay control range: 0.00 ~ 19.99mg / L

7, automatic cleaning time: 1s ~ 99m59s
8, the cleaning interval: 1 ~ 720min
9, two signal outputs: Isolated 4 ~ 20mA
10, communication interface: RS232 or RS485 (optional)
11, the working voltage: AC220V ± 10% 50 / 60Hz
12, Dimensions: 144 * 144 * 210mm
13, hole size: 138 * 138 mm
14. Installation: Embedded installation
15, the instrument of the working conditions:
① ambient temperature: -5 ~ 55 ℃
② air relative humidity: ≤90%
③ outside the Earth's magnetic field around strong magnetic field interference except