15
I
A120/130
A120/130
ORP
Calibration and
mV
Measurement
This section is applicable to models A120 and A130 meters
Prior to Use
Connecting the ORP Electrode
The A series meter is capable of measuring the oxidation reduction
potential of aqueous solutions through connecting an ORP electrode,
selectable sensor includes following options.
Order Code Description
501
For measuring the sample with strong redox potential
502
For measuring the sample with weak redox potential
504
For measuring the high temperature samples (< 100° C)
1. Take out the ORP electrode from packaging. Remove the protective
cap from the bottom of electrode.
2. Place electrode into the left or right side of the electrode arm.
3. Insert BNC connector into the connector socket labeled pH/ISE.
Rotate and push the connector clockwise until it locks.
Selecting the Measurement Mode
•
Raw millivolt (mV)
Press the
Mode
key and the
key to select the
mV
, press the
Enter
key to enter the absolute mV measurement mode.
4M KCl solution