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HM Digital PPH-1000 Single-Line pH & Temperature Controller with 4-20mA Output
HM Digital PPH-1000 Single-Line pH & Temperature Controller The HM Digital PPH-1000 is a professional-grade, single-line pH and temperature controller engineered for industrial and commercial water treatment systems . With a 4-20mA analog output , dual relay control, and automatic temperature compensation (ATC), the PPH-1000 delivers precise, continuous pH management for demanding applications — from chemical dosing systems to aquaculture, hydroponics, and process water control.
Key Features
4-20mA output signal — integrates directly with PLCs, SCADA systems, and industrial controllers
Dual relay control — two independently adjustable set points (High & Low) maintain your target pH range automatically
Digital calibration — calibrate to any point with on-screen buttons; no manual potentiometers
Automatic Temperature Compensation (ATC) — accurate readings from 1–60°C regardless of process temperature
On-screen temperature display — monitor pH and temperature simultaneously on the bright LED display
Includes ¾" pH electrode probe — 3m (9.8 ft.) cable for flexible installation
Optional alarm output — configurable alert for out-of-range conditions
Professional Applications The PPH-1000 is the go-to pH controller for:
Commercial water treatment and chemical dosing systems
Hydroponics and greenhouse nutrient management
Aquaculture and fish farming pH regulation
Industrial process water quality control
Swimming pool and spa automated pH dosing
Technical Specifications
Model: PPH-1000
Manufacturer: HM Digital
pH Range: 0.01 – 14.00 pH
Accuracy: ±0.5% F.S.
Resolution: 0.01 pH / 0.1°C (0.1°F)
ATC Range: 1 – 60°C
Calibration: Digital, any point
Output Signal: 4-20mA
Relay Controls: 2 (upper and lower limit)
Relay Switching: 5A, 250VAC
Alarm: Optional setting
Display: Bright 5/8" LED
Probe: ¾" electrode, 3m (9.8 ft.) cable
Power: AC 110V / 220V
Dimensions: 7.2 × 7.2 × 11.1 cm (2.8 × 2.8 × 4.4 in.)
Weight: 235g (8.3 oz.)
Country of Origin: South Korea
SKU / MPN: PPH-1000
Barcode / UPC: 891144000878
