NIEUWKOOP EC1200, User Manual

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EP1300
EC-METER EC1200 AND PH-METER PH1200
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5 OPERATING PROCEDURES
5.1 OPERATING INSTRUCTIONS
5.1.1 MAIN MEASURING
pH measuring
Connect the pH sensor to the BNC of the meter according to the pH sensor type selected in the set-up
menu.
Immerse the sensor in the sample.
Press the key
[MODE] .
The meter will switch ON and it will show the date entered at the end of the last calibration.
After few seconds it will turn to the display D1.0 and it will show the pH value of the sample.
When the temperature sensor is connected, the meter will perform the automatic temperature
compensation.
Temperature measuring
Connect the Pt1000 sensor to the stereo jack socket of the meter.
Press two time the key
[MODE] .
The meter will go to the D2.0 display and it will show the temperature value of the sample in °C or °F
according to the set-up selection.
The temperature measuring is available in the pH configuration.
The automatic/manual temperature compensation is available only for the pH measuring.
Data logging
During the pH measuring, press the key
[LOG] to memorize the pH value and the temperature value.
The record will be stored in the memory with an assigned number from 0 to 99.
When the memory is full the display will show the message
Mem.full .
The memory can be erased by the user. See page 15.
Low battery
In case of the battery voltage lower than 7.5 VDC, the message
Low Batt will appear when switching on
the meter.
If the voltage is lower than 6.5 VDC the power will be switched off automatically.
5.1.2 PH CALIBRATION
The meter must be configured for pH measuring.
The meter recognize automatically the Nieuwkoop buffer solutions at values pH 4
– pH 7 – pH 9.
Before performing the calibration through the buffer solutions, verify that the glass membrane of the
sensor has been kept wet while in storage.
If the protective reservoir is empty and the electrode is dry, dip the electrode in a buffer solution or tap
water (do not use deionized water) for three hours before proceeding.
You may also follow the instructi
on of the sensor’s manufacturer.