공업용 pH측정기 HP-480

Industrial pH meter

pH 0 to 14: resolution of 0.01 pH
Temperature 0 to 100: resolution of 1°C (selectable)

4 mA to 20 mA DC, input/output isolated type
Maximum load resistance 900 Ω
Transmission output range: freely selectable within the measurement range

Within ±0.05pH of the full scale (by equivalent input)

Within ±0.05pH of the full scale (by equivalent input)

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.

Two-point automatic calibration or manual calibration
Temperature calibration (one point)

• Just before hold
• Optional value hold
• Continuous

Selectable from the above (However, only the just before hold is available in the maintenance mode.)

• Calibration failure
• Electrode self-check
• Outside of the measuring range
• Transducer error

Selectable from compensation ON (500Ω(25°C), 6.8kΩ(25°C), 350Ω(25°C), 1kΩ(0°C)
or 10kΩ(25°C)) and compensation OFF

Rated voltage 100 to 240 VAC, 50/60 Hz, 10 VA (max.)

Indoor-use panel installation type
Panel: IP65 drop-proof structure

Panel: IP65 (IEC60529, JIS C0920)

48 (W) x 96 (H) x 115 D mm
Case depth: approx. 105 mm

Approx. 400 g