High Range EC, TDS, pH and °C Meter
Simultaneous, pH, EC/TDS and temperature measurements on a large three line LCD display
The HN/991301 is a light weight, portable pH, conductivity and temperature meter for portable applications requiring both a pH and conductivity measurement.
Applications include measurements for greenhouses irrigation, hydroponics and groundwater monitoring from agriculture nutrient pollution.
The HN/991301 meter features two operation button and is simple to use.
All operations and settings, including calibration buffers and temperature scale selections, are made through these two buttons. It has a waterproof and compact casing rated for IP67 conditions and a large tri-line display.
The meter has automatic pH calibration at one or two points and a single conductivity calibration. Other user selectable features include different TDS factors from 0.45 to 1.00, and a range of temperature coefficients from 0.0 to 2.4% for better conductivity or TDS solution temperature compensation.
The meter is supplied with a multi-parameter probe specifically designed for this meter.
About the HN/012886 probe
- The HN/012886 multi-parameter probe, incorporates a domed shaped pH bulb rated from 0-13 pH, a single junction Ag/Cl reference electrode with gelled electrolyte and a retractable cloth wick junction, a graphite EC/TDS cell, and a temperature sensor in one convenient, rugged polypropylene body
- In addition, to ensure against interference from transient electrical noise to pH, a solid-state pre-amplifier is integrated into the probe
- The probe is rated from 0 to 50°C
Main features
- Simultaneous, pH, EC/TDS and temperature measurements on a large three line LCD display
- Selectable temperature unit
- pH electrode condition display
- mV of pH measurement for electrode check
- Last calibration points pH and EC
- HN/012886 dedicated pH/EC/TDS/temperature probe
- Probe quick connect system
- Battery life indication and low battery detection
- Auto-off function
- Keystroke confirmation tone
- Waterproof casing IP67
Replaceable Electrode – No need to replace the whole meter when the electrode needs replacing. Spare and replacement electrodes are available for this product.
PC Interface - Download test results to a computer programmed with compatible software (HN/092000), directly from equipment via a USB port or a RS232 cable outlet. (Also see Bluetooth Connection).
Technical specifications
| pH Range |
|
-2.00 to 16.00 pH* |
| pH-mV |
|
±825 mV (pH-mV) |
| EC |
|
0 .00 to 20.00 mS/cm** |
| TDS |
|
0.00 to 10.00ppt (g/L) |
| Temperature Range |
|
-5.0 to 105.0°C |
| pH Resolution |
|
0.01 pH |
| pH-mV Resolution |
|
1 mV |
| EC |
|
1µS/cm |
| TDS |
|
1ppm (mg/L) |
| Temperature Resolution |
|
0.1°C |
| pH Accuracy @20°C |
|
±0.02 pH |
| pH-mV |
|
±1 mV |
| EC/TDS |
|
±2%F.S. |
| Temperature Accuracy |
|
±0.5°C |
| pH Electrode |
|
HI-12883 pH/EC/TDS temperature sensor, Quick Connect DIN connector and 1 m (3.3') cable (included); please note: HI-12883 is limited to be used from 0 to 13 pH and from 0 to 50° |
| TDS Conversion factor |
|
Selectable from 0.45 to 1.00 with 0.01 increments |
| Battery Type / Life |
|
3 x 1.5V AAA / approx. 600 hours of continuous use |
| Environment |
|
0 to 50°C (32 to 122°F); RH max 100% |
| Dimensions |
|
154 x 63 x 30 mm |
| Weight |
|
196 g |
| Case Protection Rating |
|
IP67 |
| Ordering information |
|
HN/991301 is supplied with HN/012883 pH/EC/TDS probe with built-in temperature sensor, DIN Connector and 1m cable, pH 4.01 and 7.01 buffer sachets, HN/070030 12880 µS/cm and HN/070038 6.44 ppt calibration solution sachets, HN/0700601 electrode cleaning solution sachets (2), 100mL beaker, 1.5V AAA batteries (3), calibration certificate of meter, calibration certificate of probe, instruction manual and HN/0710142 rugged carry case. |