Waste Water Treatment and Disposal in Water Waste Management and Remediation Services
HP-480TP
Industrial pH meter - Industrial time sharing proportional control
The HP-480TP industrial pH meter is a pH meter with a time sharing proportional control function, making it ideal for tasks such as interval processing in any type of control process.
Unlike commonly used time sharing proportional control functions, whose on-off frequency has generally been fixed, the HP-480TP includes our independently developed control method optimized for pH control, F Zone, whereby it changes its frequency as the difference becomes smaller.
Segment: Process And Environment
Division: Process Water
Manufacturing Company: HORIBA Advanced Techno Co., Ltd.
- Time sharing proportional control function with F Zone
Unlike commonly used time sharing proportional control functions, whose on-off frequency has generally been fixed, the HP-480TP includes an control method called F Zone, whereby as the pH difference becomes smaller, it changes not just the time for which the pump injecting pH regulator is on, but also its frequency. - Compatible with five types of temperature compensation elements
Five types of temperature compensation element are supported: 500 Ω, 6.8 kΩ, 1 kΩ, 10 kΩ and 350 Ω. - Easy pH correction
After immersing the pH electrodes in the standard fluid, simply follow the instructions displayed and press the ENT key.
The automatic correction process is plain and simple. - A line-up of lead-free pH electrodes
Uses lead-free glass. In addition, almost all sections of the pH electrodes, including lead wires and soldered junctions are lead-free. - Uses lead-free solder
To reduce the burden on the environment, lead-free solder has been used to mount the components on the printed circuit board.
| Product name | Industrial pH meter |
|---|---|
| Model | HP-480TP |
| Measuring range | pH 0 to 14: resolution of 0.01 pH Temperature 0 to 100: resolution of 1 °C (selectable) |
| Transmission output | 4 mA to 20 mA DC, input / output isolated type Maximum load resistance 900 Ω Transmission output range: freely selectable within the measurement range |
| Repeatability | Within ±0.05 pH of the full scale (by equivalent input) |
| Linearity | Within ±0.05 pH of the full scale (by equivalent input) |
| Contact output | Output: 2 points Alarm contact output (R1 and R2) Contact type: relay contact, SPDT (1c) Contact capacity: 240 VAC, 3 A and 30 VDC, 3 A (resistance load) Contact function: selectable from upper / lower limit operation (ON / OFF control), alarm, and maintenance. |
| Control action |
|
| Calibration function | Two-point automatic calibration or manual calibration Temperature calibration (one point) |
| Transmission output hold function |
Selectable from the above (However, only the just before hold is available in the maintenance mode.) |
| Self-diagnosis function |
|
| Temperature compensation element | Selectable from compensation ON (500 Ω (25 °C), 6.8 kΩ (25 °C), 350 Ω (25 °C), 1 kΩ (0 °C) or 10 kΩ (25 °C)) and compensation OFF |
| Power supply | Rated voltage 100 to 240 VAC, 50/60 Hz, 10 VA (max.) |
| Structure | Indoor-use panel installation type Panel: IP65 drop-proof structure |
| Protective structure | Panel: IP65 (IEC60529, JIS C0920) |
| Conforming standards | CE Marking FCC Rule |
| External dimensions | 48 (W) x 96 (H) x 115 (D) mm Case depth: approx. 105 mm |
| Mass | Approx. 400 g |
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