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• Low cost design
• Easy to read, large size, custom made LCD (with back
light)
• Operation by touch-key
• Equipped with pump control output, alarm output and
transmission output (for recording)
• Equipped with automatic calibration and sensor diagnosis
function
• Multi valtage (AC90V to 240V) |
Example of control <pH control>
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Stroke rate of electromagnetic metring pumps (P1, P2) are controlled corresponding to signal of pH sensor
Point A and B of P1 and P2 can be adjusted optionally.
Upper limit spm can be set by upper mode setting mode.
Note: pH is replaced with mV for ORP.
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Specifications
| Model |
PH-70P |
OR-70P |
| Measuring range |
PH0.00 to 14.00
Resolution: 0.01pH |
ORP 2000mV
Resolution: 1mV |
| Control output |
Pulse proportional control or ON/OFF control
Potential free contact 1ax 2 (AC/DC 240V 0.1A) |
| Transmission output |
DC 0 to 20mA (To be set optionally)
Load resistance 500 or below Insulation type |
| Input signal |
For pump stop Potential free contact input x1 |
| Output signal |
Upper limit alarm, Lower limit alarm, Output set point attained
Potential free 1ax 4 (Resistance load AC250V 10A DC30V 10A)
To select either one of Upper limit/lower limit or output set point attained |
| Function |
Automatic calibration (One point, two points calibration JIS pH4/7/9)
Manual calibration (One point, two points calibration)
Sensor diagnosis function (Abnormal temp. sensor, Abnormal buffer,
Abnormal response speed, Abnormal sensibility, Abnormal asymmetry potential)
Error message (Calibration error, Beyond measuring range)
Measuring value shift function (pH2.00) |
| Power source |
AC90 to 240V 50/60Hz 25VA |
| Insulation resistance |
100MΩ at DC500V |
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• Magnetic drive pumps
• Metering pumps
 & dosing pumps
• Pneumatic drive pumps
• Air pumps
• Gear pumps
• Turbine pumps
• Screw pumps
• Water quality control
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Catalog for Asia (PDF: 219KB)