Manual
PH-T
pH and mV simulatorfor pH/ORP meters andpH/ORP sensors
Page 1: ...Manual PH T pH and mV simulator for pH ORP meters and pH ORP sensors ...
Page 2: ...e GmbH Robert Bosch Str 7a D 40668 Meerbusch Tel 49 21 50 70 66 0 Fax 49 21 50 70 66 60 info kuntze com www kuntze com Vertrieb sales georg wilholm kuntze com 49 21 50 70 66 11 Dr A Kuntze Gutes Wasser mit System ...
Page 3: ...lates electronically the measuring signals a sensor would give in various solutions Select arbitrary test values either in mV or in pH Last not least you can verify the high resistance required for pH measurements within the whole measuring system by simply pushing a button Operation is easy just choose between testing a sensor or testing an instrument The handheld instrument can be used with batt...
Page 4: ...4 Content 1 Instrument test ORP 5 2 Instrument test pH 6 2 1 High resistance test 7 3 Sensor test 8 4 Batteries and accumulators 10 5 Technical data 11 ...
Page 5: ...n progress if your instrument is working fine it displays now the same value that is shown in the display of the PH T By use of the scroll keys of the PH T you can set an arbitrary value within 1500mV Your instrument must react within a few seconds to any changes and finally show the same value as the PH T NOTE If you press a scroll key once the value increases or decreases by 1 Hold it and the va...
Page 6: ...fer solution you usually use for e g pH 7 Calibrate your instrument Adjust the value of the PH T to the pH value of the second calibration solution for e g pH 4 and calibrate your instrument again If your instrument works fine then it will show now the same value as the PH T and the calibration results were a slope of 58 mV pH and a zero point of 0mV 5 Test By use of the scroll keys of the PH T yo...
Page 7: ...lly 1 Connect Connect the PH T via the adapter to the pH cable of your instrument 2 Switch on Switch on the PH T by pressing key ON for 5 seconds NOTE Switch on is delayed to prevent accidental activation during transport 3 Adjust value Stay in the mV mode Adjust the value to approx 300mV Your pH instrument should show now approx pH 2 4 High resistance test Press the key labelled MegaΩ MΩ in the d...
Page 8: ... display now shows the signal of the sensor in mV and M2 indicates the measuring mode 4 Test Immerse the sensor in a buffer solution NOTE Mind the temperature Buffer values are usually given for a reference temperature of 25 C With ORP sensors interpretation of the measuring signals is easy The value must be as close as possible to the value indicated on the buffer label Any deviation can be regar...
Page 9: ...teristics the slope and the zero point error The zero point error is the mV value found in pH 7 For new sensors it should not be greater than 15mV for used sensors up to 55mV are tolerated The slope is the signal change in mV per pH If you are working with buffers pH 7 and pH 4 than the mV difference between them is 3 times the slope The following table gives a rough overview mV pH4 mV pH7 150 155...
Page 10: ...ing storage and disposal of batteries The PH T can be used with rechargeable batteries and provides a charging function For specifications of connection and current supply please refer to the technical data The time necessary for recharging of a completely discharged accumulator depends on the type and the capacity It can be calculated as follows Ni Cd Charging time h capacity mAh x 0 07778 Ni MH ...
Page 11: ...ication Hollow plug OD 5mm ID 2mm 15 16V 16 20mA Display LCD 3 5characters indication of unit and function Simulation range 1500 mV instrument test 0 0 14 0 pH 1 GigaOhm high resistance test Measuring range 1500 mV Sensor test Accessories not included Order number Cable COAX F 2 1 5 BNC plug electrode plug 44136020K for connection of sensors Adapter BNC plug electrode plug 49100010K for connection...
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