Horiba HP-200 Process pH Controller

Measuring Method

Glass electrode method

Measuring Range

pH: 0 to 14 pH

Resolution: 0.01 pH

Temperature: 0 to 100°C
Resolution: 0.1°

Repeatability

pH: ±0.03 or less 
Temperature: ±0.3°C (for equivalent input)

Linearity

pH: ±0.03 or less 
Temperature: ±0.3°C (for equivalent input)

Transmission Output

Two point 4 to 20 mA DC Input/output insulated type Maximum load resistance 900

Contact Output

Five points Non-voltage contact output
Relay contact, SPDT (1c)

Contact funtion:
R1, R2: Selectable from upper limit alarm, lower limit alarm, ON/OFF control, time-shared proportional control

R3, R4: Selectable from upper limit alarm, lower limit alarm, transmission output hold operation, cleaning output

FAIL: Malfunction alarm

Contact Input

One point contact format: Open collect or non-voltage a contact

Contact Function: Cleaning operation external input

Communication Function

RS-485 Two wire system, input/output insulated type (not insulated for transmission output)

Temperature Compensation Range

0 to 100°C

Ambient Temperature

-20 to 55°C

Temperature Compensation Element

Pt 1000(0°C)
Positive temperature sensitive resistor element: 500 (25°C), 6.8K (25°C), 10K (25°C)

Calibration Method

Automatic or manual calibration

Self-diagnosis Function

Calibration error, Electrode diagnosis error, Analyzer malfunction

Power Supply

90 to 264 V AC 50/60 Hz
Power consumption 15W or less

Construction

Outdoor installation type: IP65 protection level

Mounting Method: 50A pole or wall mounted
Case: Aluminum Alloy

Mount Fitting/hood: SUS304

Equipment Protected