Carrier NDK33BN0KB, Operation & Service Manual

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62-61753-21 3-27
3.18 DATA RECORDING
The Advance microprocessor contains a built-in Data-
Recorder with 512K of memory. The recorded data
can be downloaded from the DataRecorder using ei-
ther ReeferManager, a PC software program, or a
Download PC card.
The DataRecorder reads the same input information
as the microprocessor (Functional Parameters, Con-
figurations, and Unit Data) at all times. The DataRe-
corder records events as they occur, such as set point
changes and Defrost Initiation and Termination, and
also records all data values including temperature
sensors and pressure transducers in either averaged
or snapshot format.
The following intervals are available for sensor record-
ing:
2 Minutes 30 Minutes
5 Minutes 1 Hour
10 Minutes 2 Hours
15 Minutes 4 Hours
3.18.1 Microprocessor Information
The microprocessor information that may be recorded
is as follows:
• Data Recorder Setup (Logging Intervals, Events and
Sensors)
• Data Recorder Time Clock Date / Time
• Set points
• ID Number
• Unit Serial Number
• Unit Model Number
• Trailer ID
• Current System Mode
• Functional Parameters
• Microprocessor Configurations
3.18.2 Data Recording
The Data Recorder data comes from four general cat-
egories of information:
a. Microprocessor Information as described in Section
3.18.1 above.
b. Sensor Data
This information is recorded at pre-determined inter-
vals as a snapshot of the sensor at the time of the
recording, or an averaged reading of the sensor read-
ings since the last recording. The user can determine
which sensor(s) will be recorded, at what intervals, and
whether snapshot or averaged readings are preferred.
(Snapshot readings of sensors are also taken at the
time of a shutdown alarm.)
All of the sensors and transducers that may be read
under Unit Data (refer to Table 3-1) may be included
or excluded form the recordings.
c. Event Occurrences
This information is any additional data that is recorded
on a "when it occurs" basis. Events are recorded by
the recorder as they occur. An Event is defined as
something that happens and may include:

Set point change

Defrost cycle start

Main power on

Pretrip start

Pretrip end

Unit mode

Control mode

Door and Remote switch activations.

Hour Meter readings (Hour meters are recorded at
midnight or the first time of day the switch is turned
to the ON position.
d. User Area Data
The User or service technician may enter a Comment
into the Data Recorder using the ReeferManager pro-
gram.
3.18.3 Data Downloading
The data within the Data Recorder can be downloaded
using either the ReeferManager program with a down-
load cable connected to the download port or with a
Download PC card (refer to Section 5.2). If a PC card
is used, the ReeferManager program is then used to
extract the data from the PC card, and place it on the
computer hard disk.
3.18.4 Data Recorder Power-Up
The Data Recorder records data the entire time the
START / RUN-OFF switch is in the START / RUN
position. A Configuration exists which allows the user
to select either an additional 8 hours of sensor data
be recorded after the START / RUN-OFF Switch
is placed in the OFF position, or to stop recording
at the same time the SROS is placed in the OFF posi-
tion. The factory setting is to stop recording at the
same time the SROS is placed in the OFF position.
(Refer to Section 5.1.1.)