Product Manual

9
Figure 7
WARNING
To reduce the risk of
ignitionofaammableorexplosive
atmosphere, batteries must be
changed only in a location known to
be non-hazardous.
4. Remove the batteries from the
battery compartment.
5. Remove the computer display back
housing (retained by eight screws)
from the computer, leaving all
interior wiring intact (Figure 7).
6. Strip 6 inches of jacket from one end
of cable, then strip .25 inches of in-
sulation from the black and white
wires. Tinning the ends with solder
is recommended.
7. Thread stripped cable end through
strain relief and connect white
wire to outboard position (SIG) of
terminal block and black wire to
inboard terminal (COM). An internal
wiring diagram decal is on inside
of computer display for reference
(Figure 8).
CAUTION
If using a
3-con ductor cable, do not connect
the third wire. This pulse access
does not require connection of
a third wire. Doing so may cause
damage.
A UL listed Intrinsic Safe Barrier is
required for pulse output usage. It
must be suitable for the entity pa-
rameters listed on Control Drawing
126340-01 supplied in this manual.
Pulse Access Installation
To install cable to access the pulse
output signal, follow the instructions
given below.
1. Remove the cover (retained by two
screws) from the meter body and
place it face down on work surface
away from fuel source.
2. Remove the computer display
assembly (retained by four screws)
from the cover and place face down
on work surface (Figure 6).
Figure 6
3. Remove the threaded plastic plug
and O-ring from the computer
display assembly back housing
and install the strain relief w/O-ring
into the vacated threaded hole and
tighten to 4-5 in-lb (recommended)
or until tight. Leave domed top
screw seal of strain relief loose for
now (Figure 7).