The Portable Conductivity/TDS/Salinity Meter is a compact and highly accurate device designed for rapid water quality analysis. It measures conductivity, total dissolved solids(TDS), and salinity, making it an essential tool for laboratories, environmental monitoring, industrial water testing, and agricultural applications.
Ask about availability, configuration and delivery to your location. We reply personally.
Enquiry only. No payment is taken.PH-520 Features:
1. 1 to 3 points calibration with automatic recognition for conductivity standards.
2. Automatic electrode diagnosis shows the calibration points and factors .
3. Selectable cell constant, reference temperature, linear/non-linear and pure water compensation modes.
4. Automatic temperature compensation ensures accurate readings over the entire range.
5. Auto-Read function senses and locks the measurement endpoint.
6. Setup menu allows setting the number of calibration points, temperature unit, auto-power off, etc.
7. Reset function automatically resumes all settings back to the factory defaults.
8. Expanded memory stores or recalls up to 100 data sets.
9. USB communication interface for data transfer orconnecting a power adapter to meter.
PH-530/531/540 Features:
1. 1 to 5 points calibration with automatic recognition for conductivity standards.
2. Automatic electrode diagnosis shows the calibration points and factors.
3. Selectable cell constant, reference temperature, TDS factor, linear and pure water compensations, seawater and practical salinity measurement modes.
4. Automatic temperature compensation ensures accurate readings over the entire range.
5. Auto-Read function senses and locks the measurement endpoint.
6. Calibration due alarm prompts user to calibrate the meter regularly.
7. Auto-Power Off effectively conserves battery life.
8. Setup menu allows setting the number of calibration points, stabilitycriteria,temperature unit, date and time, etc.
9. Reset function automatically resumes all settings back to the factory defaults.
10. Expanded memory stores or recalls up to 500 data sets.
11. USB communication interface is easy to transfer data to PC.
12. Multi-mode powerscheme(batteries, power adapter and USB port) ensures that using the meter smoothly.
Accessories:
Meter, CON-1 conductivity electrode, temperature probe, standard solutions and carrying case.
Technical Parameters:
|
Model |
PH-520 | PH-530 | PH-531 | PH-540 | ||
|
Conductivity |
Range |
Standard |
CON-1: 2μs/cm~20000μs/cm |
|||
| Optional |
CON-0.01: 0.01μs/cm~0.1μs/cm CON-0.1: 0.1μs/cm~2μs/cm CON-10: 20000μs/cm~200ms/cm |
|||||
|
Accuracy |
±0.5% F.S. |
|||||
|
Resolution |
0.001, 0.01, 0.1, 1 |
|||||
|
Calibration Points |
1 to 3 points(PH-520), 1 to 5 points(PH- 530/531/540) |
|||||
|
Calibration Solutions |
10μS/cm, 84pS/cm, 1413pS/cm, 12.88mS/cm, 111.8mS/cm |
|||||
|
TDS |
Range |
/ | 0~10.00, 100.0,
1000ppm, 10.00, 200.0ppt |
/ | 0~10.00, 100.0,
1000ppm, 10.00, 200.0ppt |
|
|
Accuracy |
/ | ±1%F.S. | / | ±1%F.S. | ||
|
Resolution |
/ | 0.01, 0.1, 1 | / | 0.01, 0.1, 1 | ||
|
TDS Factor |
/ | 0.1~1.0(default 0.5) | / | 0.1~1.0(default 0.5) | ||
|
Salinity |
Range |
/ |
0.00~42.00psu, 0.00~80.00ppt |
|||
|
Accuracy |
/ |
±1% F.S. |
||||
|
Resolution |
/ |
0.01 |
||||
|
Resistivity |
Range |
/ |
0.00~20.00MΩ | |||
|
Accuracy |
/ |
±1% F.S. | ||||
|
Resolution |
/ |
0.01 | ||||
|
Temperature |
Range |
0~105°C/32~221°F |
||||
|
Accuracy |
±0.5°C/±0.9°F |
|||||
|
Resolution |
0.1°C/0.1°F |
|||||
|
Offset Calibration |
1 point, reading ±10°C |
|||||
|
Other Specifications |
Temperature Compensation |
0~100°C, manual or automatic |
||||
|
Temperature Coefficient |
Linear(0.0~10.0%/°C), non-linear, pure water |
|||||
|
Reference Temperature |
20/25°C |
|||||
|
Cell Constant |
K=0.1, 1, 10 |
|||||
|
Stability Criteria |
/ |
Low or high |
||||
|
Calibration Due Alarm |
/ |
1 to 31 days or off |
||||
|
Hold Function |
Manual or auto-endpoint |
|||||
|
Auto-Off |
30 minutes after last key pressed(PH-520), 10, 20 or 30 minutes after last key pressed(PH-530/531/540) |
|||||
|
Memory |
100 data sets(PH-520), 500 data sets(PH-530/531/540) |
|||||
|
Communication Interface |
USB |
|||||
|
Connector |
6-pin mini-DIN, 3.5mm jack socket |
|||||
|
Display |
Custom LCD(80*60mm) |
|||||
|
Power Requirements |
3*1.5V AA batteries or DC5V power adapter |
|||||
|
Battery Life |
Approximately 150 hours(Turn off the backlight) |
|||||
|
Dimensions(mm) |
170*85*30 |
|||||
|
Weight(kg) |
300g |
|||||
|
Package Size(W*D*H)mm |
475*155*350 |
|||||
|
Gross Weight(kg) |
2kg |
|||||
Ask our team for the full specification sheet for this model.
Request a quote on WhatsApp, or add several items to your enquiry list and send them together.
We confirm configuration, voltage, accessories, availability and a delivered price.
We handle procurement, packing and international shipping to your facility.
This pocket pH meter can measure pH, ORP(ORP probe optional) and temperature simultaneously. Pocket design, ready to use anytime. Lightweight body, easy to carry around. Equipped with a highly sensitive electrode for…
The benchtop water hardness meter utilizes high-precision electrodes combined with intelligent algorithms to rapidly complete detection within a short time, accurately outputting reliable data measured in mg/L. This i…
Portable water hardness meter is used for the rapid and accurate quantitative analysis of calcium and magnesium ion concentrations in water samples. Its core function is to monitor water hardness, which is a critical…
Application: Suitable for water quality monitoring, ecological research, sewage treatment, industrial and mining enterprises, agriculture, pharmaceuticals, education, and other applications for sampling and measuring…
Delivering trusted sourcing, logistics, and procurement solutions across global markets. Dedicated to reliability, efficiency, and seamless business connectivity every day.
Copyright © 2026 Wuhan OBTC Co,. Ltd. All Rights Reserved.
