User Guide

1
PRELIMINARY EXAMINATION
Remove the instrument from the packing
material and examine it carefully to make
sure that no damage has occurred during
shipping. If there is any noticeable damage,
notify your Dealer.
Note: Save all packing material until you
are sure that the instrument functions
correctly. All defective items must be
returned in the original packing mate-
rial together with the supplied acces-
sories.
GENERAL DESCRIPTION
HI 8614 - HI 8614L (pH) and HI 8615 -
HI 8615L (ORP) are 2-wire water-resistant
transmitters designed specially for long dis-
tance measurement of pH or ORP for use in
industrial applications.
Two versions are available: the standard
HI8614 or HI8615 and HI8614L or HI8615L
with an LCD.
The LCD versions allow easy verification
and monitoring of measured values and are
easier to calibrate and maintain.
The pH or ORP signal is transmitted in a 2-
wire current loop in the range of 4 to 20 mA.
HI8614 and HI8614L can be connected to
Hanna process instruments HI8510T,
HI8710T or HI 8711T, recorders, computers
or any data monitoring device that accepts
4 to 20 mA input.
HI8615 and HI8615L can be connected to
Hanna meters HI8512T, HI8720T or any
recorders, computers or data monitor that
accepts 4 to 20 mA input.