ETS-Lindgren HI-3603 VLF Survey Meter - Manual (Page 49)

HI-3603 VDT/VLF Survey Meter
© ETS-Lindgren, August, 2005
Revision E, Part #H-600042 49
6.0 APPENDIX A: USING THE HI-3616
FIBER OPTIC REMOTE CONTROL
Electric Field measurements with the HI-3603 VDT Radiation
Survey Meter 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-
3603 display.
TURN-ON PROCEDURE WHEN USING THE HI-
3616
To conserve battery life, the HI-3603 does not normally generate
the optical light beam necessary for operation of the HI-3616
Fiber Optic Remote Control. The HI-3603 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-3603, it responds
and sends data.
The communications between the HI-3603 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-3603 from
its control panel in addition to displaying the measured field
values.
Section 4 provides instructions on replacement of batteries for
both the HI-3603 and the HI-3616. Please note that the low
battery symbol indication on the HI-3616 display refers to the