Ionode IJ-14 - Manual

Operators Manual
Short-Form
GOOD CHEMISTRY
GOOD CHEMISTRY
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 to register your purchase as
soon as you receive your electrode.
Reference Electrode Potentials @ 25ºC
Troubleshooting
All specifications and values are subject to change without notice. © 2009
Intermediate Junction Series
IJ 14
Reference Electrode
Symptom Possible cause Remedy
Drift Junction blocked Remove sleeve. Clean
glass stem and sleeve.
Refill with electrolyte and
replace sleeve.
Air bubbles in
sleeve electrolyte
Remove sleeve and
replace electrolyte
(see preparation)
Noisy/Off
scale
Insufficient
electrolyte
Refill electrolyte
Poor connection Check connection
Junction not
immersed fully
Lower electrode into
solution below junction
Insufficient
electrolyte
Refill electrolyte
Reference
Type
Electrolyte Potential. mV vs. SHE
Hg/Hg
2
Cl
2
Sat. KCl 244
Hg/Hg
2
Cl
2
1M KCl 280
Ag/AgCl Sat. KCl 199
Ag/AgCl 3.5M KCl 205
Ag/AgCl 1M KCl 236
Ag/AgCl
seawater
Seawater Approx 250
Hg/Hg
2
SO
4
Sat. KCl 650
Cu/CuSO
4
Sat. KCl 316
Parameter Operating Range
Half-cell potential -44mV ± 10mV with respect to SCE
(saturated calomel electrode)
Reference type Double Junction Ag/AgCl/sat KCl
Temperature range 0 – 60ºC
Sleeve electrolyte KCl gel electrolyte is supplied as
standard. Other electrolytes such as
sat KCl, KNO
3
and LiCl in ethanol
can be used depending on the application
Body and sleeve Polypropylene
Overall length 150mm
Barrel diameter 12mm
Cable length 1m standard, longer to order.
Maximum 50m
Connector 4mm banana plug standard, others
on request
All specifications and values are subject to change without notice. © 2009