Ransburg RF1 FiberOptic Meter 77786-XX, A11516-XX - Manual (Page 11)

FM-00-02.5 7 7 7 7 7
RF 1 Fiber Optic - Introduction
Figure 2: Receiver Figure 2: Receiver Figure 2: Receiver Figure 2: Receiver Figure 2: Receiver
FIBER OPTIC CABLING FIBER OPTIC CABLING FIBER OPTIC CABLING FIBER OPTIC CABLING FIBER OPTIC CABLING
This fiber optic transceiver system uses a custom
designed cabling system. The cabling system
consists of a connector, the plastic optical fiber
and protective polyethylene tubing. The
polyethylene tubing protects the internal plastic
fiber from excessively tight radius bends that
would damage it. The protective polyethylene
outer jacket also keeps the enclosed fiber from
absorbing chemical vapors that would degrade
the fiber’s ability to transmit light over time.
Figure 3: Fiber Optic Cable Assembly Figure 3: Fiber Optic Cable Assembly Figure 3: Fiber Optic Cable Assembly Figure 3: Fiber Optic Cable Assembly Figure 3: Fiber Optic Cable Assembly
HANDLING & STORAGE HANDLING & STORAGE HANDLING & STORAGE HANDLING & STORAGE HANDLING & STORAGE
PRECAUTIONS PRECAUTIONS PRECAUTIONS PRECAUTIONS PRECAUTIONS
Two reluctance type pickups protrude from the
bottom of the transmitter enclosure. When mount-
ed on a flow meter these pickups sense the
rotation of the gears beneath them in the flow
meter. Two pickups are used so that the direction
of the gear rotation and fluid flow rate can be
determined. A connector for the fiber optic cable
protrudes from the side of the enclosure.
RECEIVER RECEIVER RECEIVER RECEIVER RECEIVER
The receiver module is enclosed in a small rect-
angular die cast enclosure. A fiber optic connec-
tor protrudes from one end. An electrical connec-
tor protrudes from the other. The receiver is de-
signed to be mounted outside of the hazardous
area. It can be mounted either on a wall or inside
of an industrial control cabinet. The mounting ears
on each end of the enclosure can be removed to
facilitate alternate mounting means. An optional
DIN rail mount bracket is available.
> The transmitter contains a non-replaceable
battery power source which is designed to
power the unit for several years of normal
operation. The transmitter functions by detect-
ing very weak magnetic fields. Exposure to
stray magnetic fields during shipping, han-
dling, and storage can prematurely deplete the
battery. Keep the transmitter at least 12” away
from devices which generate stray magnetic
fields. Examples of these devices are ener-
gized transformers, florescent light ballasts,
TVs, computer monitors, and line-energized
wiring.
C A U T I O N C A U T I O N C A U T I O N C A U T I O N C A U T I O N
!
The cabling is purchased and installed as a
completed assembly.
Field splicing or Field splicing or Field splicing or Field splicing or Field splicing or
modification of length is not possible. modification of length is not possible. modification of length is not possible. modification of length is not possible. modification of length is not possible.
Refer to “Table A - Fiber Optic Cable” in the “Parts
Identification” section for available cable lengths.
> The two reluctance pickups protruding from
the bottom of the transmitter enclosure are
magnetic. Keep them away from magnetic
media (floppy diskettes) to avoid loss of data.
C A U T I O N C A U T I O N C A U T I O N C A U T I O N C A U T I O N
!
ARCHIVE