ETS-Lindgren HI-3604 ELF Survey Meter - Manual (Page 42)

Page -- 34 HI-3604 Manual
of the HI-3616 no longer responds; replace both batteries.
The data link between the HI-3604 and the HI-3616 is a plastic
fiber cable. While the fiber optic cable is generally very durable,
avoid sharp bends in the cable and avoid placing the cable under
tension (do not pull on it). Because the data is transferred by
light pulses, the ends of the cable must be kept clean and
undamaged. Use the plastic caps provided to protect the cable
ends when not in use.
With the HI-3616 connected and operating, the ELF meter may
be located as required for a reading and the value measured
observed on the display of the HI-3616. When characterizing
exposure the HI-3604 may be positioned at various locations
without interference from the instrument user (surveyor).
When not in use, the HI-3616 should be turned OFF. Refer to
the maintenance instructions in section 6.0 regarding removal
of batteries when the instrument will not be used for long
periods of time.
Using the Recorder Output
The HI-3616 includes a 3.5 mm stereo jack, located on the
bottom of the unit, used for the recorder output signal. This
signal is a DC voltage proportional to the indicated field value.
It is a 0-4 VDC signal with the four volt level representing a "full
scale" indication. The field value represented by the output
signal depends on the setting of the range switch. The output
drives a load of 5,000 ohms or more.