![background image](http://html1.mh-extra.com/html/pasco/pasport-ps-2170/pasport-ps-2170_instruction-manual_3895574011.webp)
M o d e l N o . P S - 2 1 7 0
S p e c i f i c a t i o n s
11
012-09523B
3.
Use the down arrow (
d
) to highlight “Pt 1 (mV)”. (NOTE: If you need to
change the Standard Value, highlight Pt 1 (pH), press “Check”, and use the key-
pad to enter the correct Standard Value.)
4.
Put the Chemistry Sensor’s pH Probe into the first “known standard” (pH 4 buf-
fer solution). Wait a few moments and then press F3 (
H
) to “Read Pt 1”.
5.
Use the down arrow to scroll down to the second calibration point, Highlight
“Pt 2 (mV)”. Put the Chemistry Sensor’s pH Probe into the second “known
standard” (pH 7 buffer solution). Wait a few moments and then press F4 (
H
)
to “Read Pt 2”.
6.
Press F1 (
F
). “OK”, to return to the Sensors screen.
7.
In the Sensors screen, press
h
to return to the Home Screen.