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Product Groups
pH and Temperature Data Logger
TRODEKS Engineering | Thermocouples, Pressure Transducers, Flow Meters, PID Controllers
  • Works with trodeks ® PHE-4200 Series
    of pH Probes
  • 16-Bit Resolution
  • Programmable/Start Time: Immediate or Time/Date
  • Miniature Size
  • Memory Wrap Around
  • User Calibration Through Software
  • Real Time Operation
  • Automatic Temperature Compensation
 Manuals (contact with email : [email protected])


The OM-CP-PH101 is a low cost, highresolution, miniature battery powered, stand-alonedata logger used for automaticallyrecording pH between 0.00 and 14.00 pH.

The OM-CP-PH101 uses a 16-bit ADC toachieve a resolution of 0.01pH. In addition,the OM-CP-PH101 will directly connect tomany off-the-shelf pH electrodes. The usercan easily calibrate to a specific electrodethrough our software. This all-in-one compact,portable, easy to use device will measure andrecord up to 8,192 pH and 8,192 temperaturemeasurements.

The OM-CP-PH101 is amajor leap forward in both size andperformance. Its real time clock ensuresthat all data is time and date stamped. Thestorage medium is non-volatile solid statememory, providing maximum data securityeven if the battery becomes discharged. Itssmall size allows it to fit almost anywhere.Data retrieval is simple. Plug it into an availableUSB port and our easy to use software doesthe rest. The software converts your PC into areal time strip chart recorder. Data can beprinted in graphical or tabular format and canbe exported to a text or Microsoft Excel file.

Temperature Sensor:
100 ΩPt RTD
Calibrated Accuracy: ±0.01°C @ 25°C ambient (±0.015Ω)
Temperature Resolution: 0.01°C (0.001Ω)
Measuring Range:-200 to 850°C (-328 to 1562°F); 0 to 500Ω
Input Connection: Removeable screw-terminal

pH Range:
0.00 to 14.00 pH (-1000 to 1000mV)
pH Resolution: 0.01 pH, (0.1mV)
Calibrated Accuracy: +0.1pH (+1mV)
Input Connection: Female BNC jack
Input Resistance: 1012 Ω typical

ADC Resolution:
pH Calibration:Digital calibration isavailable in software
Recording Interval: 2 seconds to
12 hours selectable in software
Real Time Recording: Device may beused with PC to monitor
and recorddata in real time
Green Visual Indicator: LED flashesat selected reading rate
Memory: 13,107 readings perchannel, 26,214 total readings
Power: 9 V lithium battery included;user replaceable
Battery Life: 1 year typical
Time Accuracy: ±1 minute per monthat 20°C
Data Format:Date and time stamped, °C, °F, K, °R, Ω; pH, V,mV,
engineering units specifiedthrough software
Computer Interface: USB (interface cable required)
Software: XP SP3/Vista and 7(32-bit and 64-bit)
Operating Environment:
-5 to 50°C (23 to 122°F);
5 to 95% RH non-condensing
61 mm H x 115 mm W x 26 mm D
(2.4 x 4.5 x 1.0")
Weight: 120 g (4 oz)
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