TechPro
TPH1
BUFFER
°C °F
TDS
pH
COND
09 mar 15
Wrist/neck Strap slot
(Strap user supplied)
pH Sensor
Protective Cap
Up key/Memory Store
Down key/Memory Recall
Displayed here:
• Temperature
readout
• Memory Storage
Location
• pH Calibration
This Key for:
• Calibration
• Memory Clear
• Solution Selection
• Confirmation
These Measurement Keys will:
• Turn instrument on
• Measure parameter
• Exit any function
Icons for pH, Conductivity or
Total Dissolved Solids (TDS)
pH Glass
Electrode
pH Sensor
(User replaceable)
Reference
Junction
(Under Glass
Bulb)
Conductivity Cell
(Built-in
Electrodes)
Temperature
Sensor
Preprogrammed
conductivity/
TDS ratios
For detailed explanations, see Table of Contents
Instrument Illustration
MODEL TPH1 Shown
TDS/SalinityPPT - parts per thousand
µS - microsiemens/cm
(micromhos/cm)
mS - millisiemens/cm
(millimhos/cm)
PPM - parts per million TDS
Conductivity
Conductivity/
Salinity
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