Hanna Instruments HI 9910 - Manual (Page 35)

35
MEDIUM DISTANCE, INDOOR/OUTDOOR
INSTALLATION
When an outdoor installation is required, it is normally necessary to
install a transmitter to obtain accurate readings at distances from 10
to 50 m (33-165').
Since the introduction of AmpHel
electrodes these distances are no
longer a problem. You can now connect your meter directly to an
AmpHel electrode, saving the cost of a transmitter.
The standard cable length of the AmpHel electrode is 5 m (16.5').
Additional lengths of regular cable up to 50 m (165'), can be
installed without special connectors. It is recommended to use coaxial
cables due to their excellent insulation, even though, Amphel elec-
trodes can operate with both.
AmpHel electrodes have a micro-amplifier in the electrode cap to boost
the signal, drastically reducing susceptibility to noise and drift.
For more details about these or other specially made electrodes,
consult the Hanna process and water treatment literature, or call the
Hanna Office nearest to you.
ACCESSORIES ACCESSORIES ACCESSORIES ACCESSORIES ACCESSORIES
pH ELECTRODES
HI 1002/3 Double Teflon junction with external threads
HI 1003/3 Double Teflon junction with matching pin
HI 2911B/5 Preamplified, double Teflon junction
ORP (Pt) ELECTRODES
HI 2002/3 Double Teflon junction with external threads
HI 2003/3 Double Teflon junction with matching pin
HI 2931B/5 Preamplified, double Teflon junction
ORP (AU) ELECTRODES
HI 2012/3 Double Teflon junction with external threads
HI 2013/3 Double Teflon junction with matching pin
Hanna manufactures hundreds of pH and ORP electrodes for a
wide variety of process and water treatment applications. Consult
the specific handbooks for electrodes and process instrumentation,
or simply call the Hanna Office nearest to you for a complete list.