1. Measuring range

a)pNa value:(0.00~9.00)pNa; resolution: 0.01pNa

b)Na⁺ (concentration value): 23g/L~0.023g/L

2.Intrinsic error of electronic unit: ±0.02pNa

3.Stability of electronic unit: ±0.02pNa/3h

4.Repeatability: 0.03pNa

5.External size: l×b×h. mm:290×210×95

6.Weight: 1.5kg

7.Normal operating condition:

a) Ambient temperature: (5~35)℃

b) Relative humidity: no more than 80%

c) Electric power supply: voltage (220±22)V; (50±1)Hz

d) Temperature of aqueous solution measured: (5~50)℃

e) No electromagnetic field which will influence performance exists except 
   
   earth magnetic field