HI 991300 and HI 991301 4-in-1 Combination Meters
The HI 991300 and HI 991301 offer the combination of pH, electro-conductivity, total dissolved solids and temperature measurements in a waterproof casing rated for IP 67 conditions. The multi-functional probe includes pH, EC/TDS and temperature in one convenient, rugged handle.
Choose from two meters to meet specific conductivity measurement requirements, from purified to brackish waters. User-friendly operation features only 2 buttons, yet allows selection from a range of calibration buffers and temperature scales. A solid-state amplifier is integrated into the probe to ensure against interference from transient electrical noise.
Features and Benefits
- 4-in-1 measurements: pH, EC, TDS, and Temperature
- Waterproof housing rated for IP 67 conditions
- Simple 2-button operation
- Selectable temperature scale (°C or °F)
- Selectable TDS factors from 0.45 to 1.00 (0.50 default); step is of 0.01 unit
- Range of temperature coefficients (β) from 0.0 to 2.4% for greater consistency and reproducibility
- Standardized buffer recognition values
- Solid-state amplifier integrated into probe for reduced electrical noise interference
- Multi-functional probe with built-in temperature sensor
Specifications
| Parameter |
HI 991300 |
HI 991301 |
| pH Range |
0.00 to 14.00 |
0.00 to 14.00 |
| pH Resolution |
0.01 |
0.01 |
| pH Accuracy (@20°C/68°F) |
±0.01 |
±0.03 |
| pH Typical EMC Deviation |
±0.01 |
±0.03 |
| EC Range |
0 to 3999 µS/cm |
0.00 to 20.00 mS/cm |
| EC Resolution |
1 µS/cm |
0.01 mS/cm |
| EC Accuracy (@20°C/68°F) |
±2% F.S. |
±2% F.S. |
| EC Typical EMC Deviation |
±2% F.S. |
±2% F.S. |
| TDS Range |
0 to 2000 ppm |
0.00 to 10.00 ppt |
| TDS Resolution |
1 ppm |
0.01 ppt |
| TDS Accuracy (@20°C/68°F) |
±2% F.S. |
±2% F.S. |
| TDS Typical EMC Deviation |
±2% F.S. |
±2% F.S. |
| Temperature Range |
0.0 to 60.0°C or 32.0 to 140.0°F |
0.0 to 60.0°C or 32.0 to 140.0°F |
| Temperature Resolution |
0.1°C or 0.1°F |
0.1°C or 0.1°F |
| Temperature Accuracy (@20°C/68°F) |
±0.5°C or ±1.0°F |
±0.5°C or ±1.0°F |
| Temperature Typical EMC Deviation |
±0.5°C or ±1.0°F |
±0.5°C or ±1.0°F |
| EC/TDS Ratios |
Selectable from 0.45 to 1.00 (0.50 default); step is of 0.01 unit |
| pH Calibration |
Automatic 1 or 2 points with 2 sets of memorized standard buffers (pH 4.01, 7.01, 10.01 or 4.01, 6.86, 9.18) |
| EC Calibration (HI 991300) |
Automatic 1 point at 1413 µS/cm (others) |
Automatic 1 point at 12880 µS/cm (others) |
| TDS Calibration (HI 991300) |
Automatic 1 point at 1382 ppm |
Automatic 1 point at 6.44 ppt (conv.=0.5); 9.02 ppt (conv.=0.7) |
| TDS Calibration (HI 991301) |
— |
Automatic 1 point at 6.44 ppt (conv.=0.5); 1500 ppm (conv.=0.7) |
| Temperature Compensation (pH) |
Automatic from 0 to 60°C |
| Temperature Compensation (EC/TDS) |
Automatic from 0 to 60°C with a selectable β from 0.0 to 2.4% per °C (1.9 default); step is 0.1 unit |
| Probe |
HI 1288 pH/EC/TDS probe with built-in temperature sensor, DIN connector and 1 m (3.3') cable (included) |
| Battery Type / Life |
4 x 1.5V AAA / approximately 500 hours of continuous use |
| Environment |
0 to 50°C (32 to 122°F); RH 100% |
| Dimensions |
143 x 80 x 38 mm (5.6 x 3.1 x 1.5") |
| Weight |
320g (11.3 oz.) |
Ordering Information
HI 991300 is supplied complete with HI 1288 pH/EC/TDS/°C probe, batteries, instruction manual in hard carrying case.
HI 991301 is supplied complete with HI 1288 pH/EC/TDS/°C probe, batteries, instruction manual in hard carrying case.
Accessories
- HI 1288 - pH/EC/TDS/°C probe
- HI 710004 - Soft carrying case
- HI 710007 - Blue shockproof rubber boot
- HI 710008 - Orange shockproof rubber boot
- HI 70030P - 12880 µS cal. sol. (25 x 20 mL)
- HI 70038P - 6.44 ppt cal. sol. (25 x 20 mL)
- HI 77100P - 1413 µS & pH 7 sol., 20 mL, 10 pcs each
- HI 77200P - 1500 ppm & pH 7 sol., 20 mL, 10 pcs each
- HI 77300P - 1382 ppm & pH 7 sol., 20 mL, 10 pcs each
- HI 77400P - pH 4 & 7 sol., 20 mL, 5 pcs each
