Fixed pH meter pHG-1901

processdigitalprecision

pHG-1901 industrial online PH meter is precision meter for measurement of PH value of solution. With complete functions, stable performance, simple operation and other advantages, they are optimal instruments for industrial measurement and control of PH value. Various PH electrodes can be used in pHG-1901 industrial online PH meter. Features 1.LCD display, high-performance CPU chip, high-precision AD conversion technology and SMT chip technology, Multi-parameter, temperature compensation, high precision and repeatability 2.US TI chips; 96 x 96 world-class shell; world-famous brands for 90% parts 3.The current output and alarm relay adopt optoelectronic isolating technology, strong interference immunity and the capacity of long-distance transmission. 4.Isolated alarming signal output, discretionary setting of upper and lower thresholds for alarming, and lagged cancellation of alarming. 5.High-performance operational amplifier, low temperature drift; high stability and accuracy Technical Indexes 1. Measuring range: 0~14.00pH, Resolution:0.01pH 2. Precision:0.05pH,±0.3℃ 3. Stability:≤0.05pH/24h 4.Automatic temperature compensation: 0~100℃(pH) 5..Manual temperature compensation:0~80℃(pH) 6. Output signal: 4-20mA isolated protection output, dual current output 7. Communication interface:RS485(optional) 8. Control interface: ON/OFF relay output contact 9.Relay load: Maximum 240V 5A; Maximum l l5V 10A 10. Relay delay: Adjustable 11.Current output load:Max.750Ω 12. Insulation resistance:≥20M 13. Power supply: AC220V ±22V, 50Hz ±1Hz