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Portable Waterproof pH/EC/TDS Meter (Low Range) – HI991300

The HI991300 is a slim, lightweight, and waterproof portable meter that measures pH, conductivity (EC), total dissolved solids (TDS) and temperature with a single amplified probe. The meter operation is simplified with two buttons. One is used for on/off and for calibration while the other is used to switch between the measurement modes. The HI991300 has advanced features including a selectable EC to TDS conversion factor (0.45 – 450 ppm and 1.0 – 1000 ppm).

  • 3 in 1 amplified probe with pH, EC/TDS and temperature sensors
  • Quick Cal Mode to calibrate pH and EC/TDS with one solution
  • EC to TDS Conversion factor selectable between 0.45 and 1.0

1,875 AED

Estimated delivery: 27 - 28 May

SKU:HI991300
hi1288 tip

The HI991300 portable meter features a large multi-level LCD which displays both pH, low-range EC or TDS and temperature readings simultaneously. The pH readings are displayed with a 0.01 resolution and an accuracy of ±0.01 pH while the EC and TDS readings are displayed with a 0.01 mS/cm and 10 ppm (mg/L) resolution and 2% full-scale accuracy. The EC range of the HI991300 is from 0 to 3999 µS/cm and TDS is from 0 to 2000 ppm using the 0.45 conversion factor. The EC to TDS conversion factor is selectable 0.45 and 1.0. A built-in temperature sensor allows for automatic temperature compensated measurements of pH and . The HI991300 has many advanced features that are found in more expensive portable instrumentation including automatic calibration, buffer/standard recognition and temperature compensation. The LCD screen has indicators for calibration status and stability, as well as on-screen tutorial messages. The battery percent level is displayed at start up alerting the user to the remaining battery power that is available. The supplied HI12883 is a 3-in-1 pre-amplified multiparameter probe that measures pH, EC/TDS, and temperature within a single polypropylene body. The amplifier for the pH electrode prevents interference from humidity and sources of electrical noise include circulating pumps, motors, and ballasts for grow lights. The design consideration for the HI991300 is ideal for measuring the pH, EC/TDS, and temperature in greenhouses, hydroponics, environmental monitoring, water treatment, wastewater treatment and boilers and cooling towers.

Simplified one button calibration

One or two point pH calibration is automatic to a pre-programmed buffer set (4.01/7.01/10.01 pH or 4.01/6.86/9.18) 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.

HI1288 polypropylene body amplified pH electrode with built-in EC/TDS and temperature sensors

The HI991300 is supplied with an amplified polypropylene body pH/EC/TDS/temperature probe. The built-in amplifier will reduce the effects of electrical noise on the high impedance pH measurement. Examples of sources of electrical noise include circulating pumps, motors, and ballasts for grow lights.

Features at-a-glance

  • 3 sensors in a single probe

pH electrode – Preamplified for resistance to electrical noise including that generated by pumps and ballast

EC/TDS sensor – amperometric two pole design

Temperature – NTC sensor for accurate temperature measurement and compensation

  • 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 oC or oF 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

  • Battery % level at startup
  • Low Battery Indicator

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

  • Auto-off

User selectable automatic shut-off ff to conserve battery life. Options are after 8 minutes, 60 minutes , or disabled.

Specifications

SKU HI991300
Name Portable Waterproof pH/EC/TDS Meter (Low Range) – HI991300
pH Range ‐2.00 to 16.00 pH; ‐2.0 to 16.0 pH
pH Resolution 0.01 pH; 0.1 pH
pH Accuracy ±0.02 pH; ±0.1 pH
pH Calibration automatic, at one or two points with two sets of standard buffers (pH 4.01 / 7.01 / 10.01 or pH 4.01 / 6.86 / 9.18)
pH Temperature Compensation automatic 0 to 50 °C; 32 to 122 °F
pH CAL Check (electrode diagnostics) probe condition indicator
pH Sensor Check yes
mV Range ±825 mV (pH‐mV)
mV Resolution 1 mV (pH‐mV)
mV Accuracy ±1 mV (pH‐mV)
EC Range 0 to 3999 µS/cm
EC Resolution 1 µS/cm
EC Accuracy ±2% F.S.
EC Calibration automatic, one-point at 1413 µS/cm
TDS Range 0 to 2000 ppm (mg/L)
TDS Resolution 1 ppm (mg/L)
TDS Accuracy ±2% F.S.
TDS Calibration automatic
EC/TDS Temperature Compensation automatic
Temperature Correction Coefficient β selectable from 0.0 to 2.4 %/ °C with 0.1 increment
EC to TDS Conversion Factor selectable from 0.45 to 1.00 with 0.01 increments
Temperature Range ‐5.0 to 105.0 °C; 23.0 to 221.0 °F
Temperature Resolution 0.1°C; 0.1°F
Temperature Accuracy ±0.5°C; ±1°F
pH/EC Probe HI12883 PVC body, pre-amplified multiparameter probe with internal temperature sensor, quick connect DIN connector and 1m cable
Automatic Shut-Off user selectable: after 8 min, 60 min or disabled
Battery Type/Life 1.5V (3) AAA / approximately 600 hours of continuous use
IP Protection IP67
Environment 0 to 50°C (32 to 122°F); RH max 100%
Dimensions 154 x 63 x 30 mm (6.1 x 2.5 x 1.2”)
Weight 196 g (6.91 oz.)

Ordering Info

HI991300 is supplied complete with HI12883 pH/EC/temperature probe, pH 4.01 calibration buffer sachet (1), pH 7.01 calibration buffer solution sachet (1), HI70031 1413 µS/cm calibration solution sachet (1), HI70032 1382 ppm calibration sachet (1), HI700601 electrode cleaning solution sachet (2), 100 mL beaker (1), batteries, calibration certificates for both meter and probe, instruction manual, and rugged thermoformed carrying case.

Manuals

Portable Waterproof pH/EC/TDS Meter (Low Range) – HI991300

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