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Hach pHD Sensor User Manual

Hach pHD Sensor
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Specifications
Specifications are subject to change without notice.
Specification Details
Measurement range (pH) 2.5 to 12.5 pH
Measurement range (temperature) -5 to 95 °C (23 to 203 °F)
Resolution 0.01 or 0.1 pH
Temperature compensation 300 ohm NTC thermistor
Stability (analyzer only) 0.03 pH per 24 hours, non-cumulative
Sensitivity Less than 0.005 pH
Maximum probe immersion depth/
pressure
6.9 bar at 105 °C (100 psi at 221 °F)
Maximum flow rate 3 m (10 ft) per second
Power requirements 5 VDC, 1 mA (supplied by controller)
Operating temperature -5 to 95 °C (23 to 203 °F)
Cable lengths/type 6 m (20 ft), 5 conductor (plus two isolated shields) cable with XLPE
(cross-linked polyethylene) jacket; rated to 150 °C (302 °F)
Maximum transmission distance 914 m (3000 ft)
Calibration methods Initial 2-point calibration using 2 buffers and then option to use 1-point or
2-point (slope) calibration using samples or buffers
Interfaces Modbus from gateway
Material Ryton
®
(PVDF) body, salt bridge of matching material with Kynar
®
junction, glass process electrode, titanium ground electrode, and Viton
®
O-ring seals
General Information
In no event will the manufacturer be liable for direct, indirect, special, incidental or consequential
damages resulting from any defect or omission in this manual. The manufacturer reserves the right to
make changes in this manual and the products it describes at any time, without notice or obligation.
Revised editions are found on the manufacturer’s website.
Safety information
Please read this entire manual before unpacking, setting up or operating this equipment. Pay
attention to all danger and caution statements. Failure to do so could result in serious injury to the
operator or damage to the equipment.
Make sure that the protection provided by this equipment is not impaired, do not use or install this
equipment in any manner other than that specified in this manual.
Use of hazard information
D A N G E R
Indicates a potentially or imminently hazardous situation which, if not avoided, will result in death or serious injury.
W A R N I N G
Indicates a potentially or imminently hazardous situation which, if not avoided, could result in death or serious
injury.
English 3

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Hach pHD Sensor Specifications

General IconGeneral
BrandHach
ModelpHD Sensor
CategoryMeasuring Instruments
LanguageEnglish

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