Brand：Erun
Name：Online pH Water Quality Monitor
Model：ERUN-SZ4-A-B7A
Parameter：pH (electrode method)
ERUN-SZ4-A-B7A water quality pH on-line detector sensor adopts high-performance industrial on-line electrodes, which can work stably for a long time, and the built-in temperature sensor automatically compensates the temperature, which can conveniently realize networking and system integration without controller. Widely used in water quality treatment, hydrological monitoring, wastewater treatment swimming pools, aquaculture water and other areas of water quality pH continuous real-time detection.
Measurement range | 0~14.00(PH) |
accuracy | ±0.02 PH |
resolution | 0.01 |
temperature range | 0~50℃ |
protection class | IP68 |
sensor interface | RS-485，MODBUS protocol |
Maximum operating pressure | 3bar |
Power supply | DC12~24V，Current ≥ 1A |
sizes | Φ28 mm *194mm （Without protective cap） |
makings | POM+Titanium Alloy |
Cable Length | 10 meters (default), customizable |
calibrations | Two or three point calibration |
demonstrate | LED liquid crystal display |
Automatic temperature compensation | 0~60℃ |
signal output | 0～20mA(Load resistance＜750Ω) 4～20mA(Load resistance＜750Ω) |
Power supply | 85～265VAC±10%,50±1Hz，Power ≤3W； 9～36VDC，Power ≤3W |
communication output | RS485 Modbus RTU |
environmental temperature | -10℃~60℃ |
relative humidity | Not more than 90% |
sizes | 144mm*144mm*130mm |
Installation | Recessed (Opening size 138*138mm) |
weights | 0.5kg |
Adopts RS485 digital output and supports Modbus protocol; |
| Built-in temperature sensor with automatic temperature compensation. |
| Built-in calibration parameters, factory calibrated accurately, ready to install and use; |
No electrolyte required, high interference immunity, no need for frequent calibration; |
Adopt LED LCD display, intelligent Chinese/English menu operation; |
Output signal: software selects 0-20mA or 4-20mA output; |
High-resistance preamplifier: high input impedance, anti-noise, strong anti-interference ability; |
Multi-parameter display on the same screen: Simultaneously display pH (or ORP) value, temperature value, two current outputs and relay working status; |
| Self-set password: Users can set or change their own passwords to avoid misuse by uninvolved personnel. |
