8551 AZ EB
Digital Handheld ORP Meter
Features
ISO 9001 Facility: Manufactured in an ISO 9001 certified environment.
CE EN 61326-1 & IEC 61000: Designed and tested to meet European EMC safety standards.
RoHS & REACH Compliant: We provide a Manufacturer’s Self Declaration, ensuring the product meets environmental safety standards for hazardous substances.
8551 AZ Oxidation Reduction Potential mV Meter features:
* One touch auto-calibration up to 5 points
* Calibration values are adjustable
* Hold function to freeze the record
* Max./Min review of memorized data
* Easy to view probe calibration data.
* "Ready" icon on LCD to indicate the reading is stable or not
* USB connection for online logging or upload 99 memories to PC for analysis
* Could be powered by adaptor for long time use
* Auto power off to save battery power
* Temperature unit ℃/°F is switchable
Application
Application of 8551 AZ ORP Detector:
The portable 8551 AZ ORP Meter can measure
the oxidation reduction potential value from -1999mV to +1999mV, which had been
widely operation in the Water Quality Testing applications.
The 8551 AZ ORP Meter could be powered by
4pcs AAA batteries for carry easily or 9VDC adaptor for the long time measuring
plan with the tripod.
The 8551 AZ ORP mV Meter could link to PC
via USB cable to capture the on-line data, and display the mV, oxidation
reduction potential (ORP) and temperature readings with real-time output. User
can retrieve file, save the data for operating data analysis, record
statistics....versatile functions according different purposes.
The 8551 AZ ORP Meter could be the best
Water Quality tester for all professional measuring purposes, including the LAB,
water treatment business, Aquaculture, Aqua farm, swimming pool or other related
industry.
The 8551 AZ ORP Meter was being designed and
manufactured by AZ Instrument, a well experienced manufacturer for Environmental
Measuring Instrument.
Specification
Specification of 8551 AZ ORP mV Meter:
| Model | 8551 |
| mV Measuring Range | -1999~1999 mV |
| mV Accuracy | ±0.2 mV (-199.9~1999.9 mV) or ±2 mV (others) |
| mV Resolution | ±0.1 mV (-199.9~1999.9 mV) or ±1 mV (others) |
| Temperature Measuring Range | 0~60.0℃ |
| Temperature Accuracy | ±0.3℃ |
| Temperature Resolution | 0.1℃ |
| pH Calibration | Up to 5 points |
| 99 points memory | YES |
| Real Time Clock | YES |
| Compatible Probe | ORP: 850PAZ, 86P5AZ |
| LCD Size | 44(L) * 26(W) mm |
| Operating Temperature | 0~50℃ |
| Operating RH% | Humidity ＜80% |
| Storage Temperature | -10~50℃ |
| Storage RH% | Humidity ＜90% |
| Sensor Life Time | >6 months (with good maintenance) |
| Meter Size | 175(L) * 70(W) * 33(H) mm |
| Weight | ~150g |
| Battery | AAA *4 PCS |
| Standard Package | Meter, Batteries, Manual, Carry Case, Calibration Solution |
| Optional Accessory | USB Cable & Software |
Youtube
FAQ
【FAQ of AZ 8551 Digital Handheld ORP Meter】
Q1: What is ORP, and why is it important for water analysis?
A: ORP stands for Oxidation-Reduction Potential, measured in millivolts (mV). It measures the ability of a water body to oxidize or reduce substances.
* Positive values (+mV): Indicate the water is an oxidizing agent, capable of killing bacteria and breaking down organic matter (commonly found in disinfected pools or tap water).
* Negative values (-mV): Indicate the water is a reducing agent, often associated with antioxidant properties (commonly found in ionized water or certain natural springs). It is the most direct indicator of "sanitization efficiency" or "biological activity" in water.
Q2: Why do ORP readings fluctuate and take time to stabilize?
A: ORP measurement is a highly sensitive electrochemical process. Fluctuations are usually caused by:
* Probe Contamination: Any oil, biofilm, or scale on the platinum tip will slow down the response.
* Water Flow: Flowing water typically provides more stable and accurate readings than stagnant water.
* Equilibrium Time: ORP electrodes require time (sometimes several minutes) to reach chemical equilibrium with the ions in the liquid.
* Low Conductivity: In pure or distilled water, the lack of ions makes it extremely difficult to obtain a stable ORP reading.
Q3: How do I maintain the ORP probe electrode for longevity?
A: Always keep the glass bulb moist by adding KCL storage solution to the protective cap. Avoid touching the glass bulb with hard objects and clean it after each use to prevent cross-contamination.
