Portable ph testers

Acid Alkali Concentration Meter line monitoring of water quality control instrument with microprocessor. The instrument is widely used in thermal power, chemical, steel pickling and other industries, such as power plants for the regeneration of ion exchange resins, chemical processes, such as chemical industry, chemicals for aqueous acid or alkali concentration for continuous detection and control. 

Technical Parameters of ph testers :

( 1 ) Measurement range : concentration : 0-10% ;
       Measuring media : HCl, H2SO4, NaOH, NaCl, HNO3, Na2CO3 , etc. ;
       Temperature : -5 ~ 110.0 °C;
( 2 ) Resolution : concentration : 0.01% ;
       Temperature : 0.1 °C;
( 3 ) The basic error : concentration : ± 0.25% F • S
       Temperature : ± 0.3 °C;
( 4 ) Stability : ± 0.25% / 24h;
( 5 ) Automatic or manual temperature compensation range : 0 ~ 110 °C;
( 6 ) isolated current output : 0 ~ 10mA ( load resistance <1.5KΩ); 4 ~ 20mA ( load resistance <750Ω);
( 7 ) two relay control contact : 3A240VAC, 6A28VDC or 120VAC;
( 8 ) Instrument Power supply : 220VAC ± 10%, 50 ± 1Hz, power ≤ 3W; 24VDC, Power : ≤ 1W ( optional ); 12VDC, Power : ≤ 1W ( optional ) ;
( 9 ) Instrument Dimensions : 96 × 96 × 130mm;
( 10 ) Meter Installation: panel mounting ;
         Installation hole size : 91 × 91mm;
         Wall-mounted : 300 × 200 × 167mm;
( 11 ) Optional features : RS485 / / RS232 communication interface connected to the computer ;
( 12 ) temperature output signal corresponding to 0 ~ 100.0 °C;
( 13 ) Instrument Weight : 0.6kg;
( 14 ) Instrument working environment:
         Ambient temperature : -10 ~ 60 °C;
         Relative humidity: less than 90% ;
  In addition to the Earth's magnetic field without strong magnetic field around it.   

Features of ph testers :
LCD large-screen LCD
Chinese intelligent menu operation
Optional output signal mode
Manual, automatic temperature compensation
Two relay control switch
High limit and low limit, hysteresis control
RS485 / / RS232 communication connection optional
Same interface displays acid concentration and temperature values
Password protection is provided to prevent the misuse of non-staff