Brand: BIOBASE | Category: Scientific & Laboratory Equipment
BIOBASE Portable Conductivity/TDS/Salinity Meter PH-520 PH-530 PH-531 PH-540 is listed in VVON's ph conductivity & water analysis range for Bangladesh. Published models: PH-520, PH-530, PH-531, PH-540. Match measured parameters, range, probe compatibility and sample conditions. For a quotation, send the water or sample type, parameters, range, probe and calibration requirements. Confirm the exact model, included accessories, consumables, delivery and service scope in the offer. Manufacturer specifications below describe the published configuration; options and local availability require confirmation.
Compare each model column separately. Confirm options and included accessories in your quotation.
| Model | PH-520 | PH-530 | PH-531 | PH-540 |
|---|---|---|---|---|
| Conductivity / Range / Standard | CON-1: 2μs/cm~20000μs/cm | CON-1: 2μs/cm~20000μs/cm | CON-1: 2μs/cm~20000μs/cm | CON-1: 2μs/cm~20000μs/cm |
| Conductivity / Range / Optional | CON-0.01: 0.01μs/cm~0.1μs/cm CON-0.1: 0.1μs/cm~2μs/cm CON-10: 20000μs/cm~200ms/cm | CON-0.01: 0.01μs/cm~0.1μs/cm CON-0.1: 0.1μs/cm~2μs/cm CON-10: 20000μs/cm~200ms/cm | CON-0.01: 0.01μs/cm~0.1μs/cm CON-0.1: 0.1μs/cm~2μs/cm CON-10: 20000μs/cm~200ms/cm | CON-0.01: 0.01μs/cm~0.1μs/cm CON-0.1: 0.1μs/cm~2μs/cm CON-10: 20000μs/cm~200ms/cm |
| Conductivity / Accuracy | ±0.5% F.S. | ±0.5% F.S. | ±0.5% F.S. | ±0.5% F.S. |
| Conductivity / Resolution | 0.001, 0.01, 0.1, 1 | 0.001, 0.01, 0.1, 1 | 0.001, 0.01, 0.1, 1 | 0.001, 0.01, 0.1, 1 |
| Conductivity / Calibration Points | 1 to 3 points(PH-520), 1 to 5 points(PH- 530/531/540) | 1 to 3 points(PH-520), 1 to 5 points(PH- 530/531/540) | 1 to 3 points(PH-520), 1 to 5 points(PH- 530/531/540) | 1 to 3 points(PH-520), 1 to 5 points(PH- 530/531/540) |
| Conductivity / Calibration Solutions | 10μS/cm, 84pS/cm, 1413pS/cm, 12.88mS/cm, 111.8mS/cm | 10μS/cm, 84pS/cm, 1413pS/cm, 12.88mS/cm, 111.8mS/cm | 10μS/cm, 84pS/cm, 1413pS/cm, 12.88mS/cm, 111.8mS/cm | 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 |
| TDS / Accuracy | / | ±1%F.S. | / | ±1%F.S. |
| TDS / Resolution | / | 0.01, 0.1, 1 | / | 0.01, 0.1, 1 |
| TDS / 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 | 0.00~42.00psu, 0.00~80.00ppt |
| Salinity / Accuracy | / | / | ±1% F.S. | ±1% F.S. |
| Salinity / Resolution | / | / | 0.01 | 0.01 |
| Resistivity / Range | / | / | / | 0.00~20.00MΩ |
| Resistivity / Accuracy | / | / | / | ±1% F.S. |
| Resistivity / Resolution | / | / | / | 0.01 |
| Temperature / Range | 0~105°C/32~221°F | 0~105°C/32~221°F | 0~105°C/32~221°F | 0~105°C/32~221°F |
| Temperature / Accuracy | ±0.5°C/±0.9°F | ±0.5°C/±0.9°F | ±0.5°C/±0.9°F | ±0.5°C/±0.9°F |
| Temperature / Resolution | 0.1°C/0.1°F | 0.1°C/0.1°F | 0.1°C/0.1°F | 0.1°C/0.1°F |
| Temperature / Offset Calibration | 1 point, reading ±10°C | 1 point, reading ±10°C | 1 point, reading ±10°C | 1 point, reading ±10°C |
| Other Specifications / Temperature Compensation | 0~100°C, manual or automatic | 0~100°C, manual or automatic | 0~100°C, manual or automatic | 0~100°C, manual or automatic |
| Other Specifications / Temperature Coefficient | Linear(0.0~10.0%/°C), non-linear, pure water | Linear(0.0~10.0%/°C), non-linear, pure water | Linear(0.0~10.0%/°C), non-linear, pure water | Linear(0.0~10.0%/°C), non-linear, pure water |
| Other Specifications / Reference Temperature | 20/25°C | 20/25°C | 20/25°C | 20/25°C |
| Other Specifications / Cell Constant | K=0.1, 1, 10 | K=0.1, 1, 10 | K=0.1, 1, 10 | K=0.1, 1, 10 |
| Other Specifications / Stability Criteria | / | Low or high | Low or high | Low or high |
| Other Specifications / Calibration Due Alarm | / | 1 to 31 days or off | 1 to 31 days or off | 1 to 31 days or off |
| Other Specifications / Hold Function | Manual or auto-endpoint | Manual or auto-endpoint | Manual or auto-endpoint | Manual or auto-endpoint |
| Other Specifications / Auto-Off | 30 minutes after last key pressed(PH-520), 10, 20 or 30 minutes after last key pressed(PH-530/531/540) | 30 minutes after last key pressed(PH-520), 10, 20 or 30 minutes after last key pressed(PH-530/531/540) | 30 minutes after last key pressed(PH-520), 10, 20 or 30 minutes after last key pressed(PH-530/531/540) | 30 minutes after last key pressed(PH-520), 10, 20 or 30 minutes after last key pressed(PH-530/531/540) |
| Other Specifications / Memory | 100 data sets(PH-520), 500 data sets(PH-530/531/540) | 100 data sets(PH-520), 500 data sets(PH-530/531/540) | 100 data sets(PH-520), 500 data sets(PH-530/531/540) | 100 data sets(PH-520), 500 data sets(PH-530/531/540) |
| Other Specifications / Communication Interface | USB | USB | USB | USB |
| Other Specifications / Connector | 6-pin mini-DIN, 3.5mm jack socket | 6-pin mini-DIN, 3.5mm jack socket | 6-pin mini-DIN, 3.5mm jack socket | 6-pin mini-DIN, 3.5mm jack socket |
| Other Specifications / Display | Custom LCD(80*60mm) | Custom LCD(80*60mm) | Custom LCD(80*60mm) | Custom LCD(80*60mm) |
| Other Specifications / Power Requirements | 3*1.5V AA batteries or DC5V power adapter | 3*1.5V AA batteries or DC5V power adapter | 3*1.5V AA batteries or DC5V power adapter | 3*1.5V AA batteries or DC5V power adapter |
| Other Specifications / Battery Life | Approximately 150 hours(Turn off the backlight) | Approximately 150 hours(Turn off the backlight) | Approximately 150 hours(Turn off the backlight) | Approximately 150 hours(Turn off the backlight) |
| Other Specifications / Dimensions(mm) | 170*85*30 | 170*85*30 | 170*85*30 | 170*85*30 |
| Other Specifications / Weight(kg) | 300g | 300g | 300g | 300g |
| Other Specifications / Package Size(W*D*H)mm | 475*155*350 | 475*155*350 | 475*155*350 | 475*155*350 |
| Other Specifications / Gross Weight(kg) | 2kg | 2kg | 2kg | 2kg |
Manufacturer catalogue checked 2026-09-28.
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Phone: +8801805987890 | Email: info@vvon.com.bd
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