1. ECG-1903 series of microcomputer-based industrial control instruments are precision meters for measurement of conductivity or resistivity of solution. With complete functions, stable performance, simple operation and other advantages, they are optimal instruments for industrial measurement and control.
2. The advantages of this instrument include: LCD display with back light and display of errors; automatic temperature compensation; isolated 4-20mA current output; dual relay control; adjustable delay; alarming with upper and lower thresholds; power-down memory and over ten years of data storage without backup battery.
3. According to the range of resistivity of the water sample measured, the electrode with a constant k=0.01, 0.1, 1.0 or 10 can be used by means of flow-through, immerged, flanged or pipe-based installation.
pHG-1901 industrial online PH meter is a precision meter for measurement of the 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
LCD display, high-performance CPU chip, high-precision AD conversion technology and SMT chip technology,
Multi-parameter, temperature compensation, high precision and repeatability
US TI chips; 96 x 96 world-class shell; world-famous brands for 90% parts
The current output and alarm relay adopt optoelectronic isolating technology, strong interference immunity and
the capacity of long-distance transmission.
Isolated alarming signal output, discretionary setting of upper and lower thresholds for alarming, and lagged
cancellation of alarming.
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:â?¤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:â?¥20M
13. Power supply: AC220V ±22V, 50Hz ±1Hz
14. Overall dimension: 96(length)x96(width)x110(depth)mm;dimension of the hole: 92x92mm
15. Weight: 0.6kg
16. Working condition: ambient temperature:0~60, air relative humidity:â?¤90%
Except for the earth magnetic field, there is no interference of other strong magnetic field around.
Standard configuration
One secondary meter, the mounting sheath of immerged (selection), one PH electrode, three packs of standard
Ordering guide:
1. To inform whether the electrode provided is a dual or ternary complex.
2. To inform the length of the electrode cable (default as 5m).
3. To inform the installation type of the electrode: flow-through, immerged, flanged or pipe-based
