External 12 VDC Power Supply for Continuous Monitoring
The PHH-720 model has been discontinued. Please see the
PHH103B as a possible alternative or contact our Flow Engineering department.
The PHH-720 is a water-resistant pH meter with
a built-in 3½-digit LCD. The meter is supplied
with the PHE-720 double-junction, plasticbody,
gel-filled combination pH electrode
with 2 m (6.6') cable and BNC connector
protected by a waterproof sheath. The
electrode has a unique clogging-resistant
The alarm setpoint can be selected anywhere in
the 3 to 11 pH range. A red LED warns the user in
the event the reading is outside the setpoint by
more than ±0.5 pH. Calibration can be manually
performed at 1 or 2 points through two easily
accessible trimmers on the front of the unit.
The meter is suited for outdoor installations and
highly humid environments. The casing has also
been specially designed to give maximum stability
and prevent rolling from any surface. In addition,
a molded hook allows the meter to be easily
installed close to the sample. The 12 Vdc power
supply is ideal for continuous monitoring over
extended periods of time. PHH-720 is supplied
complete with pH electrode, calibration key,
power supply and instructions.
SPECIFICATIONS Range: 0.0 to 14.0 pH Resolution: 0.1 pH Accuracy: ±0.2 pH at 20°C (68°F) Typical EMC Deviation: ±0.2 pH Calibration: Manual 2 point at pH 4 and 7 Setpoint: Adjustable from 3.0 to 11.0 pH Alarm: LED blinks when pH is outside setpoint by more than ±0.5 pH Electrode: PHE-720 double junction, PTFE diaphragm pH electrode with 2 m (6.6') cable and BNC connector (included) Power Supply: External 12 Vdc (included) Environment: 0 to 50°C (32 to 122°F); 100% RH Dimensions: 86 L x 94 W x 33 mm D (3.4 x 3.7 x 1.3") Weight: 150 g (5.3 oz)
注: Comes complete with pH electrode, calibration key, power supply, and operator’s manual.