LaMotte pH Waterproof Testr 1 Meter - Manual (Page 7)

Electrode Replacement
Replace the electrode module when the Testr fails to calibrate, gives fluctuating
readings in buffers, shows error messages “E2" or ”OR", and the procedures in the
maintenance section fail to resolve the problem.
7
1. 2.
3. 4.
5.
Place the rubber gripper band
over the collar of the Testr.
Firmly grip the rubber gripper
band and the ribbed collar of
the Testr with dry hands.
Slowly twist counter-clockwise to
loosen the collar.
Unscrew the ribbed electrode
module collar and remove it. Save
the collar and the O-ring.
Pull the electrode module
straight out from the bottom
of the Testr.
Align the four tabs on the new
electrode module to match the
four slots on the Testr.
ON OFF CAL HOLD CON
WATERPROOF
pHTestr 1
ON OFF CAL HOLD CON
WATERPROOF
pHTestr 1
ON OFF CAL HOLD CON
WATERPROOF
pHTestr 1
ON OFF CAL HOLD CON
WATERPROOF
pHTestr 1
ON OFF CAL HOLD CON
WATERPROOF
pHTestr 1
ON OFF CAL HOLD CON
WATERPROOF
pHTestr 1
6.
small o-ring (hidden)