Nvis901
pH Meter Calibration using electronic buffer
Nvis 901 having electronic buffer for calibrating the instrument. Three connector are provided on
back side of instrument. These are voltage source for 4,7 and 9.18pH.
pH
Voltage
4
+178mV
7
0V (GND)
9.18
-129mV
Electronic calibration can only calibrate the instrument. If error is in sensor, then calibration
should be done with pH sensor and buffer solution. Electronic calibration not work in case of ph
sensor error.
Electronic calibration procedure
The calibration procedure using buffer solution and electronic buffer is same. In electronic calibration
electronic buffer provided on back side of panel are used instead of pH sensor. Electronic buffer of 4
pH, 7pH, 9.18pH are connected one by one using a cord (provided with Nvis901) with pH connector
on front panel and follow same procedure explained in section “pH Meter Calibration using pH buffer
solution”.
Nvis Technologies Pvt. Ltd.
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