1-24
Revised 8-6-93
This installation program is easily loaded into the PC
and is menu driven so that the portable computer can be
programmed to provide the desired customer report
format headings and revised easily by the customer.
The Husky computer can then be attached to the
serial port interface on the 69NT unit to interrogate the
DataCORDER. The computer has an LCD multi-line
dot matrix display which is menu driven for ease of use by
the operator.
The Husky computer can store interrogation of up to
100 units for a maximum total of 750 trip days at an
average of 7.5 days per unit or 50 units at an average of 15
days per unit.
After interrogation of many units is completed, the
portable computer will display that it is full.
It can then be downloaded to directly print to a serial
or parallel port printer (with a serial-to-parallel
connection).
It also can be downloaded to a PC for storage on hard
or floppy disks.
Once in disk storage it can be retrieved or
downloaded to an analysis program for further analysis if
desired and can be printed in tabular or graphical form.
b. Remote Monitoring
All data that was previously described as either
stored or displayed can be transmitted to a remote
monitoring unit (RMU) shipboard computer center.
This data
includes the
present
operating
temperatures, pressure, voltages, amperages and alarms
defined by the code select functions.
This data also includes the temperature, set point
changes, power outages, defrost initiation, and alarm
occurrences that are stored in the DataCORDER for the
last 1500 operating hours.
By way of 2-way communication, the shipboard
computer center can initiate all functions and selectable
features that are accessible at the unit such as set point
change, pre-trip initiation, defrost initiation, etc.
The remote monitoring unit (RMU) may be field
installed to the unit. Mounting brackets for the RMU are
provided behind the microprocessor control panel
(Display).
Three wire harnesses are provided in the unit to
interconnect
the
RMU
(labeled
“CI”
for
communications interface on the schematics) and the
controller.
One harness connects the RMU and
controller current loop communication ports. Another
provides 24 volt AC power to the RMU. The third
connects the output port of the RMU to the 460 volt
power line just ahead of CB1. Please refer to the unit
schematic and wiring diagrams.
NOTE
None of the harnesses are connected. They must
be field connected when the RMU is installed.
1.13.9 Setting Function Codes Without AC Power
(Optional)
For units equipped with software Revision 106 or
greater, Battery Module Switch (BMS) and Battery
Module or Disposable Batteries.
If the user wishes to enter a new set point or change
the user selectable codes (Refer to section 1.13.1.i)
without AC power hooked up to the unit the following
procedure should be followed:
a. Make sure that the PN connector is hooked up to the
battery module.
b. Set switch (BMS) to position “1”.
c. Enter new set point by pressing the Up or Down Ar-
row keys until the desired temperature is then
reached. Then press the Enter key.
d. To change the user selectable codes, (Codes 26
through 32) must be accessed. Once the desired code
is reached, the user may change the value of these
functions to meet the operational needs of the con-
tainer. (Refer to Section 1.13.4 for an explanation of
the Function Codes.)
e. Once all desired entries have been made, switch the
BMS switch to the “0” position.
NOTE
The controller will give the user two minutes to
make a keystroke. If a key is not pressed within
the two minute period, the micro will enter an
inactive mode and “Data Log” will appear on the
display. To exit the inactive mode, simply switch
the BMS switch to the “0” position.
To reactivate the controller after switching BMS
to the “0” position, wait 10 seconds after the
“Data Log” disappears, then switch the BMS to
position “1”.
Once the controller is activated, if a key is depressed
within the initial two minute period, the controller will
remain active for 30 seconds, thereafter. (i.e., If a key is
pressed 10 seconds after the controller is activated, “Data
Log” will appear 30 seconds later if no other keys are
pressed.
CAUTION
Anytime (BMS) is in position “1” and the
refrigeration unit is not operating, the battery
will be discharging. Therefore, the switch must
be set to position “0” when battery power is not
required.
1.14 USDA BATTERY MODULE (OPTIONAL)
Units configured for USDA cold treatment contain
either a battery/charger module or a “C” size battery box.
This allows for temperature and unit status recording
while main system power (460/230) is not available or
connected. The three pin power cable is used to latch in
the USDA back-up battery box and for probe calibration
at the beginning of the cold treatment.
a. Operating Instructions
1. Unplug dummy plug (Item 4, Figure 1-8).
2. Connect power cable (2) to USDA battery
box module (3). (Install with flat
side on plug body up)
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