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Portable pH/EC/TDS/Temperature Meter – HI9812-51

220.00  + PVM

pH/EC/TDS matuoklis.

 

SKU: HI9812-51 Categories: ,

Available on backorder - This item may take 2-3 weeks to deliver.

The HI9812-51 is a portable, water resistant meter designed to be paired with HI1285-51 pH /EC/TDS/Temperature multiparameter probe. The meter is easy to use, with dedicated keys for measurement modes that are clearly displayed on the LCD, and knobs for 1-point calibration of pH and EC. On-screen tutorial messages guide the user through calibration and measurement.

  • 3 in 1 probe with pH, EC/TDS and temperature sensors
  • Best for hydroponics, greenhouses, farming, and ground water applications
  • Large LCD with instructions

 

For agriculture, greenhouse and hydroponics applications.

These meters feature a large LCD which displays either pH, EC, TDS or temperature readings along with tutorial instructions. The pH readings are displayed with a 0.1 resolution and an accuracy of +/-0.1 pH while the EC and TDS readings are displayed with a 10 mS/cm and 10 ppm (mg/L) resolution and 2% full scale accuracy. The temperature correction coefficient (β) is fixed at 2 %/°C and allows for automatic temperature compensated measurements of EC and TDS. These meters are calibrated manually to a single point with the use of two trimmers. pH is calibrated to pH 7.01 while EC/TDS is calibrated to either 1.41 mS/cm (1413 µS/cm) or 1500 ppm. The LCD screen has battery life indicator as well as on-screen tutorial messages.

No probe changes are required when switching your measured parameter between pH, conductivity and TDS. These multi-parameter meters reduce the number of instruments required for daily water quality analysis.

The supplied probe on all models feature a polypropylene body, amplified pH electrode with a built-in EC/TDS and temperature sensors. The amplifier for the pH electrode prevents interference from humidity and electrical noise from common sources including from motors, ballasts or pumps.

Details

The HI9812-51 portable meter features a large LCD which displays either pH, EC, TDS or temperature readings along with tutorial instructions. The HI9812-51 is a simplistic pH/EC/TDS meter that is calibrated manually to a single point with the use of two trimmers. pH is calibrated to pH 7.01 while EC/TDS is calibrated to either 1.41 mS/cm (1413 µS/cm) or 1500 ppm. The LCD screen has battery life indicator as well as on-screen tutorial messages.

The supplied HI1285-5 probe is a polypropylene body, amplified pH electrode with a built-in EC/TDS and temperature sensors. The amplifier for the pH electrode prevents interference from humidity and electrical noise from common sources including from motors, ballasts or pumps. The HI9812-51 is a versatile meter best suited for agricultural, greenhouse and hydroponic applications.

HI1285-5 polypropylene body amplified pH electrode with built in EC/TDS and temperature sensors

The HI9812-51 is supplied with a polypropylene body pH/EC/TDS/temperature probe. The pH, EC, TDS, and temperature sensors are housed in a single body that connects to the meter with a DIN connector. This probe is specially engineered with a fiber junction and gel electrolyte to produce a fast response with reduced contamination.

Amplified pH Electrode

The pH electrode circuit has a built in amplifier that will reduce the effects of electrical noise on the high impedance pH measurement. Examples of sources of electrical noise include motors, ballasts, and pumps which are common in greenhouses.

Amperometric EC/TDS Sensor

The EC/TDS readings are performed by an amperometric sensor. An alternating voltage is applied to the sensor and the amount of current that passes between the two stainless steel pins is dependent upon the amount of salts (fertilizer) present. A greater amount of salt present results in an increase in conductance.

Polypropylene Body

The polypropylene body houses all the sensors in a single body design and is durable. The probe is gel filled for maintenance free operation. It does not have to be refilled periodically.

  • 3 sensors in a single probe
  • Pre-amplified pH electrode for resistance to electrical noise
  • Gel filled maintenance free pH electrode
  • Features at-a-glance
  • Water Resistant
  • Automatic Temperature Compensation
  • All readings are compensated for variations in temperature
  • Low Battery Indicator
 
More Information
SKU HI9812-51
Product Name pH/EC/TDS/Temperature Meter HI1285-51
Quote Required No
sku HI9812-51
pH Range 0.0 to 14.0 pH
pH Resolution 0.1 pH
pH Accuracy (@25°C/77°F) ±0.1 pH
pH Calibration manual, 1-point through offset trimmer
Temperature Range 0.0 to 70.0 °C
Temperature Resolution 10°C
Temperature Accuracy (@25°C/77°F) ±1°C
Temperature Calibration Automatic, from 0 to 70°C with ß=2% / °C
EC Range 0 to 1990 µS/cm
EC Resolution 10 µS/cm
EC Accuracy (@25°C/77°F) ±2% F.S.
EC Calibration manual, 1-point through slope trimmer
TDS Range 0 to 1990 ppm (mg/L)
TDS Resolution 10 ppm (mg/L)
TDS Accuracy (@25°C/77°F) ±2% F.S.
TDS Conversion Factor 0.5 ppm (mg/L) = 1 µS/cm
TDS Calibration manual, 1-point through slope trimmer
Power Supply 9V / approximately 450 hours of continuous use
Environment 0 to 50°C (32 to 122°F); RH max 100%
Dimensions 145 x 80 x 36 mm (5.7 x 3.1 x 1.4”)
Weight 230 g (8.1 oz.)
Ordering Information HI9812-51 is supplied with HI1285-51 multiparameter probe, HI70007 pH 7.01 calibration solution sachet, HI70032 1382 ppm (mg/L) calibration solution sachet, HI70031 1413 µS/cm calibration solution sachet, HI700661 electrode cleaning solution sachets (2), 9v battery (1), instructions and rugged carrying case.
Warranty 2 years
Recommended Probe HI1285-51 polypropylene body, pre-amplified multiparameter probe with internal temperature sensor, 8-pin DIN connector and 1 m (3.3’) cable

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