LaMotte pH Waterproof Testr 1 Meter - Manual (Page 8)

Electrode Replacement
Self-Diagnostic Messages
ER1 Batteries are low and need replacing
ER2 Wrong or bad buffer value (out of range) or the electrode is
failing. Check buffers or replace electrode.
OR Over range signal from voltage in a solution, the electrode is
not contacting the solution, or the electrode is failing. Check
solution or replace electrode.
Accessories
Replacement probe 5-0009
Buffers (4, 7, 10) 2866, 2881, 2896
Mini buffer tablets (4, 7, 10) 3983, 3984, 3985
8
6.
7. 8.
Note: For older models with only
two slots, break off the two small
tabs using needle-nosed pliers.
Gently push the electrode module
into the bottom of the Testr to
fully seat it in position.
Put the smaller O-ring all the way
into the ribbed collar.
Push the collar on over the module.
Thread it into place by firmly twisting
it clockwise until the larger O-ring
that is near the faceplate disappears
under the ribbed electrode module
collar.
ON OFF CAL HOLD CON
WATERPROOF
pHTestr 1
ON OFF CAL HOLD CON
WATERPROOF
pHTestr 1