eutech-instruments ammonium epoxy User Manual
Ammonium Electrode
Instruction Manual
14
Low Slope or
standards contaminated
prepare fresh
No Slope
or incorrectly made
standards
ISA not used
use recommended ISA
standard used as ISA
use ISA
defective electrode
check electrode
operation
electrode exposed
soak electrode
to interference
in ammonium standard
air bubble on membrane
remove bubble by
redipping
probe
Noisy or Unstable
defective meter
check meter with
Readings (readings
shorting strap
continuously or
randomly changing)
air bubble on
remove bubble by
membrane
redipping
electrode
defective electrode
replace electrode
electrode exposed
soak electrode
to interference
in ammonium standard
meter or stirrer
ground meter or
not
grounded
stirrer
outer filling solution
fill electrode
level too low
to level just below fill hole