Chemical Metering Systems - Combine Controller and Pump In One Unit |
| PHP-196 |
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Combines Controller and Pump in One Unit
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Proportional Control
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LCD Readout of Process pH or Setpoint
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Reverse Direction Control
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Control Bandwidth Manually Adjustable, 1 to 3 pH Units
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NEMA-4X Enclosure
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View related products - Pumps
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The PHP-190 Series of chemical
metering systems are unique
instruments that combine a pulse
frequency controller with a
diaphragm-type pump in one
compact unit. In the control mode,
deviations from setpoint are
converted to pulses which vary the
stroke rate of the metering pump.
As the setpoint is approached, the
pump feed slows down to minimize
chemical loss and overshoot of the
endpoint. Variation of the stroke
rate is controlled by a front panel
potentiometer or through process
controlled operation by external
electric or mechanical pacing or by
closed loop control.
The units are
supplied with foot valve, injection
valve, power cord, and a float level
switch made of polypropylene with
a 1.8 m (6') polyethylene-coated
cable. For proper control, a holding tank with
a minimum 10-minute residence
time is required.
SPECIFICATIONS
Range: pH control 0 to 14 pH
Electrode Connector: BNC (includes SN6-to-BNC adaptor)
Input Impedance: >1012 Ω
Zero Point Adjustment: ±3 pH
Slope Adjustment: 85 to 102%
Setpoint Adjustment: 0 to 100%
Display: 3-digit LCD
Control Bandwidth: 1 to 3 pH units, adjustable
Control Direction: Reversible
Linearity: Better than ±1% range
Reproducibility: Better than ±0.5% range
Operating Temperature: -10 to 45°C (14 to 113°F)
Power: 115 Vac
Wetted Parts: S: 316 SS and PTFE with ceramic valve balls
Connections: S: tubing for PHP-196
Ship Weight S: 1.5 (3.3)
| Model No. |
Ratings at max. back pressure |
| psi (bar) |
USGPH (l/h) |
| PHP-196-S | 22 (1.5) | 3.25 (12.3) |
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† All dollar amounts on this site are shown in US currency.
Note:
Electrode sold separately.
Ordering Example: (1) PHP-196-S PHP-196 pump with 316 stainless steel liquid end, $1975., $3,050.00
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