ETS-Lindgren HI-3604 ELF Survey Meter - Manual (Page 41)

HI-3604 Manual Page -- 33
7.0 USING THE HI-3616 FIBER OPTIC REMOTE CONTROL
Electric Field measurements with the HI-3604 often require that
the instrument user be isolated from the instrument to avoid
perturbation of the ambient field. This is especially so in the
case of the electric field component. In other situations, the
meter may need to be oriented such that it is difficult to observe
the Liquid Crystal Display (LCD) on the front of the meter. In
these circumstances, the HI-3616 Fiber Optic Remote Control
is invaluable for remote reading of the HI-3604 display.
Turn-on Procedure When Using the HI-3616
To conserve battery life, the HI-3604 does not normally
generate the optical light beam necessary for operation of the
HI-3616 Fiber Optic Remote Control. The HI-3604 is normally
in a "listening" mode. It is continually looking for a signal or
command from the HI-3616. In this manner, it is saving power
by not having to use its fiber optic transmitter unless actually
communicating with the HI-3616. When turned on, the HI-3616
is programmed to send out short "information request"
commands. When such a command is received by the HI-3604,
it responds and sends data.
The communications between the HI-3604 and the HI-3616 are
bidirectional, ie., commands and information travel in both
directions. Take care when connecting the fiber optic cable to
match the meter and readout connector colors (yellow to
yellow; white to white).
The HI-3616 is able to control all operations of the HI-3604
from its control panel in addition to displaying the measured
field values.
Section 6.0 provides instructions on replacement of batteries for
both the HI-3604 and the HI-3616. Please note that the low
battery symbol indication on the HI-3616 display refers to the
battery condition of the HI-3604. The HI-3616 battery life is
significantly longer than that of the HI-3604; when the display