Hanna Instruments GROLINE HI981421, Instruction Manual

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DESCRIPTION
4.2. GENERAL DESCRIPTION
GroLine Monitor
is designed to offer you the combination of pH, conductivity (or total dissolved
solids) with temperature measurements. All operations and settings, including calibration buffers and
temperature scale selection, are included in a easy to use
Monitor setup.
The supplied HI1285‑8 (with HI981420 ) or HI1285‑9 (with HI981421 ) multiparameter probe
measures pH, EC/TDS and temperature in one convenient, rugged probe. A solid‑state preamplifier
is integrated into the probe to protect the pH measurement from transient electrical noise. Sources of
electrical noise include ballasts used in lighting and pumps to circulate water and nutrient solutions.
If pH reading in pH 7.01 buffer is around 4.01, the probe is broken.
Measurements are automatically logged in the
GroLine Monitor internal memory every
15 minutes and can be viewed using the plot/record log feature or exported to a Flashdrive, or by
connecting to a PC.
The three main operating modes of this
Monitor are measurement, setup and logging. Follow this
general outline to get you started. The following topics are expanded in the sections of this manual.
Other features include:
• can be integrated into a fertilizer system
• pH/EC/TDS probe with built‑in temperature sensor
• as a failsafe feature, if the pH bulb breaks, the pH will be around 4.01
• multiple viewing options for on‑screen data
• quick calibration using Quick cal solution for pH and EC simultaneously
• pH and EC calibration timeout reminder (1‑30 days)
• visual plot screens for real‑time data and log history
• 24 hours summary screens (plot and details)
• alarms feature for all parameters
• automatic continuous logs, 15 minutes intervals, 30 days storage
• logged data can be stored and later exported to a USB C drive or transferred to a PC
using USB C connection
• GLP feature calibration data for pH and EC (up to 5 calibrations)
• dedicated help with contextual message
• setup, calibration and operating parameters are stored in nonvolatile memory
(important to note that if power is lost all settings are retained)
• probe inline mounting for fast measurement feedback ( HI1285‑9 only)
• ambient light sensor for ON/OFF backlight