Hanna Instruments Edge Instruction Manual

Hanna Instruments Edge Instruction Manual Manual pdf 61 page image

Operational Guide61EC/TDSMeasurementsNo Temperature Compensation (No TC): The temperature value is displayed,but not taken into account. When this option is selected, the “NoTC” tag willbe displayed. The reading displayed on the primary LCD is the uncompensatedEC or TDS value.Note:• The default compensation mode is ATC• The compensation is referenced to the selected reference temperature(see SETUP for details).If temperature compensation is selected, measurements are compensatedusing the temperature coefficient (default value 1.90 %/ºC, is recommendedfor natural water samples).To change the temperature coefficient, enter the SETUP mode and select“T.COEF.(%/ºC)” (see SETUP).The current temperature coefficient can be viewed on the 3rd LCD line bypressing the ARROW keys until it is displayed. The value is displayed alongwith Cell Factor. If the temperature reading is out of range, the closest fullscale value will be displayed with “ºC” blinking on the 2nd LCD line.If the temperature reading is out of probe specification range, the valueis displayed blinking along with “PROBE OUT OF SPEC” message. If thetemperature sensor is broken, the message “BROKEN TEMPERATURESENSOR” and “----” is displayed along with the unit tag blinking on the 2ndLCD line.TDS MeasurementsPress the RANGE key. The instrument will switch to TDS measuring range. TheTDS reading will be displayed on the 1st LCD line andthe temperature reading on the 2nd LCD line. If thereading is out of range, the full-scale value (100.0g/L for ATC mode or 400.0 g/L for uncompensatedTDS) will be displayed blinking.