Manual

Warranty
IJ electrodes have a pro-rata warranty of 12 months from
date of purchase. Any electrode found to be faulty due to
manufacture within this time will be replaced.
Ionode reserves the right to limit or modify product warranty
if it is deemed that the electrode has been used in unsuitable
applications.
IJ electrodes have an expected lifetime of 2-4 years in ideal
samples at room temperature. This may be reduced in
chemically aggressive or abrasive samples and at high
temperatures.
Please visit www.ionode.com.au to register your purchase as
soon as you receive your electrode.
User maintenance and troubleshooting
All specifi cations and values are subject to change without notice. © 2009
Intermediate Junction Series
Short-Form
Operators Manual
Download a detailed manual at
www.ionode.com.au
IJ64
ORP Electrode (Pt tip)
IJ Au
ORP Electrode (gold tip)
IJ Ag
Silver Billet Electrode
Symptom Possible cause Remedy
Drift Junction blocked Remove sleeve. Clean
junction or ground glass
stem
Sensor tip not
clean
Remove sleeve
Clean sensor tip
Reading stable
in standards, but
not in samples
See ORP theory in
comprehensive manual
available on-line
Electrode polarised Replace electrode
Noisy Poor connection
to meter
Check connection
Junction not
immersed fully
Lower electrode into
solution below junction
Insuffi cient
electrolyte
Refi ll electrolyte
Not within
tolerance
(±20mV)
Contaminated
standard
Replace standard
Correlation to
wrong reference
electrode
Calculate what standard
would read if using a
saturated KCl reference
Sensor not clean Remove sleeve. Clean
sensor wire
Electrode
polarised
Isolate electrode
Displays
0mV for all
solutions
Electrical short Check connector
Internal short Replace electrode
Reading
out of
range
Noise Refer above
Unreliable
titration
results
with IJAg
pH too high Acidify with nitric acid to
approx pH2-3
Contamination
from electrolyte
Use 1M potassium nitrate
in sleeve
Slow ORP
response
Non reversible
ORP reaction
Stir sample
Parameter Operating Range
mV range -2000 to +2000 mV
Accuracy ± 10mV
Temperature range 0 – 60ºC
Reference type Double Junction Ag/AgCl/sat KCl
Sensor materials Platinum wire (IJ64)
Silver billet (IJAg)
Gold wire (IJAu)
Body and sleeve Polypropylene
Overall length 150mm
Barrel diameter 12mm
Cable length 1m standard, longer to order.
Maximum 20m
Connector BNC standard, others on request
All specifi cations and values are subject to change without notice. © 2009