Portable pH/EC/TDS Meter – HI9810-61 with Cal Check

Description

Details

The HI9810-6 portable meter features a large LCD which displays either pH, EC, TDS or temperature readings along with tutorial instructions. The HI9810-6 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 HI9810-6 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 HI9810-6 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.

The TDS value in aqueous solutions is directly proportional to the conductivity. The ratio between the two parameters depends on the solution. The HI9810-6 has a fixed conversion factor set to 0.5, meaning that 1 µS/cm is equal to 0.5 ppm of TDS.

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
- EC and TDS readings are compensated for variations in temperature
Set EC to TDS conversion factor
- EC to TDS conversion factor set at 0.5 so no need for additional calculations
Low Battery Indicator

Additional information

Portable pH/EC/TDS Meter – HI9810-61 with Cal Check	Portable pH/EC/TDS Meter – HI9810-61 with Cal Check

Specifications

pH Range	0 to 14 pH
pH Resolution	0.1 pH
pH Accuracy	±0.1 pH
pH Calibration	Manual 1 point through offset trimmer

EC Range	0 to 6000 µS/cm
EC Resolution	10 µS/cm
EC Accuracy	±2% F.S.
EC Calibration	manual, one-point
TDS Range	0 to 3000 mg/L
TDS Resolution	10 mg/L
TDS Accuracy	±2% F.S.
EC/TDS Temperature Compensation	automatic, 0 to 50°C (32 to 122°F) Compensation with a ß of 2%/°C
Temperature Correction Coefficient	β = 2% /°C
EC to TDS Conversion Factor	1 µS/cm = 0.5 mg/L

EC/TDS Probe	HI1285 combination, amplified, double-junction, gel pH electrode with incorporated EC/TDS probe and built-in temperature sensor and 1m (3.3′) cable
Battery Type/Life	9V / approximately 150 hours of continuous use
Environment	0 to 50°C (32 to 122°F); max 95% RH non-condensing
Dimensions	185 x 82 x 45 mm (7.3 x 3.2 x 1.8″)
Weight	520 g (1.1 lb.)
Ordering Information	HI9810-6 is supplied with HI1285 multiparameter probe, HI70007 pH 7.01 buffer solution sachet (1), HI70031 1413 µS/cm calibration solution sachet (1), HI70032 1382 ppm sachet (1), 9V battery, and instructions.