Table of Contents
Advertisement
While in setup mode, press " " key to select memory clear function P2.0,
"CLr" icon appears on LCD (Fig.6)
Press "ENTER" key to enter P2.1.The default " NO" icon flashes on LCD. Press "
" key to change and then press "ENTER" key to confirm.
NOTE: This procedure will clear 99 memories at a time. Please consider
carefully before delete.
P3.0 Electrode (ELE)
To view the pH electrode data (slope & offset value) from WT-40:
Press "MODE" key to select the mode as pH before entering setting mode.
Press " " to select P3.0 while in setting mode, "ELE " appears on the LCD.
Press "ENTER" key to enter P3.1, LCD displays 1of 4 available slope values
(P3.1 to P3.4). If the value is <75% or >115%, suggest to change electrode
immediately.
Press "ENTER" key to review P3.2, P3.3 & P3.4 (Fig. 7)
Press "ENTER" to enter P3.5 to view the offset value.(Fig. 8) Offset value is the
mV value of pH 7 and the default offset value is 0.0. The offset value will be
different after re-calibration. When the offset value is out of range +60mV,
strongly suggest you to replace with a new probe.
NOTE: P3.1, 3.2, P3.3 & P3.4 slope definition of buffer:
NIST
NON-NIST
P4.0 pH Buffer (buF)
Before pH calibration, select the buffer you use. You can use NIST buffer or
non-NIST (here refer as "Custom" buffer) for calibration purpose. Correct
buffer selection can help meter to recognize the buffer and calibrate the
probe more precisely.
P3.1
0.00~4.01
0.00~4.50
P3.2
4.01~6.86
4.50~7.00
5
P3.3
6.86~9.18
9.18~14.00
7.00~9.50
9.50~14.00
P3.4
Advertisement
Table of Contents
