1.It is composed of electronic unit and 9435A-1 measuring unit.
2.It adopts dot matrix display and Chinese menu. It can simultaneously display dissolved oxygen and temperature of measured water.
3.The measuring range can be automatically switched, （0～20.0）μg/L,（0～200）μg/L, （0～2.00）mg/L，（0～20.00）mg/L(used in calibration)
4.Its functions include automatic zero, full scale and atmospheric pressure calibration and automatic temperature compensation.
5.Its functions include automatic upper limit alarming and power failure protection.
6.It has（4～20）mA isolation output signal, and the corresponding upper and lower limit of dissolved oxygen value can be regulated within 0～200μg/L.
7.There are RS-232 and RS-485 output ports which can be selected to realize digital communication with no error.
8.The industrial case has the protection level of IP65 aiming to prevent water spraying and dust pollution.
1.Measuring range
Dissolved oxygen：(0～20.0)μg/L，(0～200)μg/L，(0～2.00)mg/L，(0～20.00)mg/L
temp：(-10.0～120.0)℃
temperature compensation range：(0.0～45.0)℃
2.Basic error:
Dissolved oxygen: ±5％FS
Temp: ±0.5℃ [ (0.0℃≤T≤60.0℃；±1.0℃(in other range)
3.Basic error of electronic unit: DO：±3％FS；T：±0.3℃
4.Stability of electronic unit：（±2％FS）/24h
5.Response time: 2min（90% respond）
6.Measured water inlet connector: outer diameterΦ6x1, stainless steel tube
7.Sewage water outlet connector: outer diameterΦ10x1, stainless steel tube
8.Maximum pressure of measured water：1.4x105Pa
9.Measured water flow：(300～500)ml/min
10.Temperature of measured water：(10.0～40.0)℃
11.Normal working conditions
a)Ambient temperature：(-5～50)℃；
b)Relative humidity<=90%
c)Power supply: AC voltage(220±22)V，Frequency(50±0.5)Hz
d)There is no corrosive gas in surrounding air.
e)There is no performance-affected oscillation in surrounding environment.
12. Dimension (length x width x height ) ：
a)Measuring unit：224mm×288mm×628mm hole size: 262mm×602mm
b)Electronic unit:144mm×144 mm×150 mm hole size: 138mm×138mm
13. Weight: 10kg
a) Measuring unit: 10kg
b) Electronic unit: 2kg
