Carrier 69NT40-561-201, Руководство по эксплуатации и обслуживанию, Страница: 45 / 117

3 − 16 T-364
a. DataLINE
The DataLINE software for a personal computer is sup-
plied on CD. This software allows interrogation, configu-
ration variable assignment, screen view of the data,
hard copy report generation, cold treatment probe cal-
ibration and file management. Refer to Data Retrieval
manual 62-10629 for a more detailed explanation of the
DataLINE interrogation software. The DataLINE manu-
al may be found on the internet at www.container.car-
rier.com.
b. DataBANK E Card
The DataBANK ™ card is a PCMCIA card that interfaces
with the controller through the programming slot and
can download data at a fast rate. Files downloaded to
DataBANK card files are accessible through an Omni
PC Card Drive. The files can then be viewed using the
DataLINE software.
c. Communications Interface Module
The communications interface module is a slave mod-
ule, which allows communication with a master central
monitoring station. The module will respond to commu-
nication and return information over the main power line.
With a communications interface module installed, all
functions and selectable features that are accessible at
the unit may be performed at the master station. Re-
trieval of all DataCORDER reports may also be per-
formed. Refer to the master system technical manual
for further information.
3.7.11 USDA Cold Treatment
Sustained cold temperature has been employed as an
effective postharvest method for the control of Mediter-
ranean and certain other tropical fruit flies. Exposing in-
fested fruit to temperatures of 2.2 C (36 F) or below for
specific periods results in the mortality of the various
stages of this group of insects.
In response to the demand to replace fumigation with
this environmentally sound process, Carrier has inte-
grated Cold Treatment capability into its microprocessor
system. These units have the ability to maintain supply
air temperature within one quarter degree Celsius of set
point and record minute changes in product tempera-
ture within the DataCORDER memory, thus meeting
USDA criteria. Information on USDA is provided in the
following sub-paragraphs.
a. USDA Recording
A special type of recording is used for USDA cold treat-
ment purposes. Cold treatment recording requires three
remote temperature probes be placed at prescribed
locations in the cargo. Provision is made to connect
these probes to the DataCORDER via receptacles lo-
cated at the rear left-hand side of the unit. Four or five re-
ceptacles are provided. The four 3-pin receptacles are
for the probes. The 5-pin receptacle is the rear connec-
tion for the Interrogator. The probe receptacles are
sized to accept plugs with tricam coupling locking de-
vices. A label on the back panel of the unit shows which
receptacle is used for each probe.
The standard DataCORDER report displays the supply
and return air temperatures. The cold treatment report
displays USDA #1, #2, #3 and the supply and return air
temperatures. Cold treatment recording is backed up by
a battery so recording can continue if AC power is lost.
b. USDA/ Message Trip Comment
A special feature in DataLINE allows the user to enter a
USDA (or other) message in the header of a data report.
The maximum message length is 78 characters. Only
one message will be recorded per day.
3.7.12 USDA Cold Treatment Procedure
The following is a summary of the steps required to initi-
ate a USDA Cold Treatment:
a. Calibrate the three USDA probes by ice bathing the
probes and performing the calibration function with
the DataLINE. This calibration procedure determines
the probe offsets and stores them in the controller for
use in generating the cold treatment report. Refer to
the Data Retrieval manual 62-10629 for more details.
b. Pre-cool the container to the treatment temperature
or below.
c. Install the DataCORDER module battery pack (if not
already installed).
d. Place the three probes. The probes are placed into
the pulp of the product (at the locations defined in the
following table) as the product is loaded.
Sensor 1 Place in pulp of the product located next
to the return air intake.
Sensor 2
Place in pulp of the product five feet
from the end of the load for 40 foot con-
tainers, or three feet from the end of the
load for 20 foot containers. This probe
should be placed in a center carton at
one-half the height of the load.
Sensor 3
Place in pulp of product five feet from
the end of the load for 40 foot containers
or three feet from the end of the load for
20 foot containers. This probe should be
placed in a carton at a side wall at
one-half the height of the load.
e. To initiate USDA recording, connect the personal
computer and perform the configuration as follows,
using the DataLINE software:
1. Enter ISO header information.
2. Enter a trip comment if desired.
3. Configure the DataCORDER for five probes (s, r, P1,
P2, P3) (dcf02=5).
4. Configure the logging interval for one hour.
5. Set the sensor configuration to “USDA.”
6. Configure for two byte memory storage format
(dcf04=LONG).
7. Perform a “trip start.”