HE-480H, Panel-Mount Type Conductivity Meter, High Concentration Type, HORIBA

The HE-480H is a panel-mount high-concentration conductivity meter from HORIBA's 48/96 Series, the panel-integrated counterpart to the field-mount HE-200H. Using the 4-electrode method with FES Series lead-type sensors, it reliably measures conductivity up to 500 mS/cm and provides built-in seawater and NaCl salinity conversion — making it well suited to wastewater treatment monitoring, seawater desalination, hydroponic nutrient solution management, and industrial process concentration control. Temperature compensation is range-dependent: NaCl characteristic for the lower ranges and fixed reference/coefficient for the mid range, with no compensation for the highest range. The panel face is rated IP65 and the instrument fits a standard 48 × 96 mm DIN cutout with a single isolated 4–20 mA output and two configurable relay contacts.

Key Features HE-480H

• 4-electrode method with FES Series sensors (cell const. 1.0 /cm) — stable measurement in high-conductivity samples up to 500 mS/cm.
• Built-in seawater salinity conversion 0–4.00% and NaCl salinity conversion 0–20.0%.
• Three selectable conductivity ranges: 0–20 mS/cm, 0–200 mS/cm, 0–500 mS/cm (sensor-model dependent).
• Single isolated 4–20 mA DC output (max. 900 Ω); free range setting; repeatability and linearity ±0.5% FS.
• Two relay contact outputs (SPDT 1c, 240 V AC / 30 V DC, 3 A): R1/R2 selectable as upper/lower limit alarm, ON/OFF control, or maintenance.
• Range-dependent temperature compensation: NaCl (ref. 5–95 °C, ±5%/°C) for 0–20 mS/cm range; fixed ref. 25 °C / ±3.5%/°C for 0–200 mS/cm range; no compensation for 0–500 mS/cm range.
• Panel face IP65 (IEC60529 / JIS C0920); ABS case; DIN 48 × 96 mm; Class II device IEC61010-1, Pollution Level 2.
• CE marked: EN61326-1, EN61010-1, RoHS EN50581; FCC Part 15.

Applications

The HE-480H is suited to wastewater treatment monitoring, seawater salinity management, hydroponic nutrient solution control, industrial process concentration gauging, and any high-conductivity application where a panel-integrated transmitter with salinity conversion is preferred.

Installation and Safety Notes

Install into a standard 48 × 96 mm panel cutout. Power: 100–240 V AC, 50/60 Hz, 10 VA max. Panel face IP65; rear case IP20; terminals IP00 — protect the rear from moisture. Operating temperature −5 to 45 °C; storage −25 to 65 °C; humidity 20–85% RH non-condensing.

Technical Specifications