"GroLine" pH/EC/TDS Combo tester - HI98131

 

Simplified one-button calibration

One or two-point pH calibration is automatic to a pre-programmed buffer set (4.01, 7.01 and 10.01) or single point pH and EC calibration with the Hanna Quick Cal calibration solution. To perform a quick cal calibration, simply press and hold the left power/mode button while in measurement mode for three seconds and let go to enter calibration mode. Once both pH and EC are calibrated "CAL OK" is displayed and the meter returns to measurement mode.

HI73127 Replaceable pH electrode

The HI99131 TDS water tester is supplied with the HI73127 replaceable pH electrode. This electrode features an extractable junction that can be pulled 1/8" out to clear any clogging that results in drifting and erratic readings.

 

Features-at-a-glance

 

3 sensors in a single meter

• pH electrode with extractable junction
• Amperometric EC/TDS sensor
• Exposed temperature probe for faster EC/TDS readings

 

Waterproof

• Designed to withstand the humidity of a growing environment

Wide pH Range

• pH range is from 0.00 to 14.00 pH

 

Selectable EC to TDS conversion factor

• Choice of either a 0.5 or 0.7 conversion factor
  0.5 (500 CF) conversion factor is for an EC reading of 1000 μS/cm = 500 ppm
  0.7 (700 CF) conversion factor is for an EC reading of 1000 μS/cm = 700 ppm

 

Automatic Temperature Compensation

• All readings are compensated for variations in temperature
  Temperature displayed in °C or °F along with pH, EC or TDS reading

 

Stability indicator

• Meter displays a clock tag that will disappear when the reading has achieved stability

 

HOLD button

• Freezes reading on the display to allow recording of measurement

 

BEPS (Battery Error Prevention System

• Meter will automatically shut off if there is not enough power to get an accurate measurement

 

Low Battery Indicator

• When the level is below 5%, the battery symbol on the LCD blinks to indicate a low battery condition.

 

Auto-off

• Selectable time before meter will automatically shut off to conserve battery life. Options are after 8 minutes, 60 minutes, or disabled.

 

Battery % level at startup

 

 

 Specifications

 

Specification Name	Detail
sku	HI98131
pH Range	0.00 to 14.00 pH
pH Resolution	0.01 pH
pH Accuracy (@25°C/77°F)	±0.10 pH
pH Calibration	automatic, one or two-point calibration (using pH 4.01, 7.01, 10.01 buffers); one point calibration using HI50036 Quick Cal pH and EC one-point calibration solution
Temperature Range	0.0 to 60.0 °C (32.0 to 140.0 °F)
Temperature Resolution	0.1 °C (0.1 °F)
Temperature Accuracy (@25°C/77°F)	±0.5 °C (±1.0 °F)
EC Range	0.00 to 6.00 mS/cm
EC Resolution	0.01 mS/cm
EC Accuracy (@25°C/77°F)	±2% F.S.
EC Calibration	automatic, one-point at 1.41 mS/cm or 5.00 mS/cm; one point calibration using Quick Cal pH and EC one-point calibration solution
TDS Range	0 to 3000 ppm (0.5 CF); 0 to 3999 ppm (0.7 CF)
TDS Resolution	10 ppm (mg/L)
TDS Accuracy (@25°C/77°F)	±2% F.S.
TDS Conversion Factor	0.5 (500 ppm) or 0.7 (700 ppm
Temperature Compensation	pH: automatic; EC: automatic, with β= 1.9%/°C
Power Supply	1.5V batteries (4 pcs.)
Power Consumption	approximately 100 hours of continuous use
Environment	0 to 50 °C (32 to 122 °F); RH max. 100%
Dimensions	163 x 40 x 26 mm (6.4 x 1.6 x 1.0”)
Weight	95 g (3.4 oz)
Ordering Information	HI98131 is supplied with HI73127 pH electrode, HI73128 electrode removal tool, batteries (4), instructions and quality certificate.
Warranty	This meter is warranted for a period of one year against defects in workmanship and materials when used for their intended purpose and maintained according to instructions. The electrode is warranted for a period of six months.