YHBJ-262 Portable pH/ORP Meter
Redox potential (ORP) is used to characterize the macroscopic redox properties of substances in aqueous solutions: the higher the ORP value, the stronger the oxidizing power; the lower the ORP value, the stronger the reducing power. An ORP meter measures the solution potential in millivolts (mV): a positive value indicates an oxidizing solution; a negative value indicates a reducing solution.
Key Features
3.5-inch HD LCD screen, button operation
Selectable resolution: pH supports 0.01pH and 0.1pH, ORP/mV supports 0.1mV and 1mV
Selectable temperature units: ℃ and °F
Supports self-diagnosis upon startup, automatic shutdown, power failure protection, and factory reset functions
Supports firmware upgrades
Supports IP65 protection rating
Standard package includes a 501 type ORP composite electrode, a T-818-Q type temperature electrode, electrode holder, silicone protective cover, wrist strap, portable carrying case, and 462mV... ORP Calibration Reagent
Intelligent Detection, Automatic Identification
Intelligent endpoint determination, supports continuous reading, equilibrium reading, and timed reading.
Supports automatic/manual temperature compensation.
Supports 1-point ORP calibration and 1-5-point pH electrode calibration.
Features pH standard solution group management function, automatically identifies GB, DIN, and NIST pH buffer solutions, and supports custom pH buffer solutions.
Data Management, Information Traceability
Supports data storage (500 sets), viewing, deletion, transmission, and printing.
Supports multiple viewing methods; viewing results are displayed as curves.
Compliant with GLP, enabling data traceability.
Supports connection to a standard RS-232 serial printer to print measurement results; print format is selectable.
Features a USB interface for data transmission via dedicated communication software to a PC.
Power Management
Powered by a high-capacity lithium battery, supports charging via PC and power bank connection.
Features battery level indicator and charging status reminder.
Supports backlight adjustment.
Parameters:
| Model | YHBJ-262 |
|---|---|
| pH Level | 0.01 Level |
| Measurement Parameters | pH, ORP, mV, Temperature |
| ORP / mV | |
| Range | (-2000.0 ~ 2000.0) mV |
| Minimum Resolution | 0.1 mV |
| Electronic Unit Indication Error | ±0.1% or ±0.3 mV |
| Electronic Unit Repeatability | 1 mV |
| Instrument Matching Error (ORP) | ±15 mV |
| pH | |
| pH Level | 0.01 Level |
| Range | (-2.00 ~ 20.00) pH |
| Minimum Resolution | 0.01 pH |
| Electronic Unit Indication Error | ±0.01 pH |
| Temperature | |
| Range | (-5.0 ~ 110.0) °C / (23.0 ~ 230.0) °F |
| Minimum Resolution | 0.1 °C / 0.1 °F |
| Electronic Unit Indication Error | ±0.2 °C |
| Instrument Indication Error | ±0.4 °C (0.0 °C ~ 60.0 °C), ±1.0 °C (Other ranges) |
| Power Supply | Rechargeable battery, Power adapter (Input: AC 100-240V, Output: DC 5V) |
| Dimensions, Weight | 80 × 225 × 35 mm, Approx. 0.4 kg |