Carrier 69NT40-561-201, Operation & Service Manual

Page: 44 / 117

3 − 15 T-364
Table 3 − 3 DataCORDER Standard Configurations
Standard
Config.
Description
2 sensors
(dCF02=2)
2 thermistor inputs (supply & return)
5 sensors
(dCF02=5)
2 thermistor inputs (supply & return)
3 USDA thermistor inputs
6 sensors
(dCF02=6)
2 thermistor inputs (supply & return)
3 USDA thermistor inputs
1 humidity input
9 sensors
(dCF02=9)
Not Applicable
6 sensors
(dCF02=54)
2 thermistor inputs (supply & return)
3 USDA thermistor inputs
1 cargo probe (thermistor input)
7 sensors
(dCF02=64)
2 thermistor inputs (supply & return)
3 USDA thermistor inputs
1 humidity input
1 cargo probe (thermistor input)
10 sensors
(dCF02=94 )
2 thermistor inputs (supply & return)
3 USDA thermistor inputs
1 humidity input
1 cargo probe (thermistor input)
3.7.6 Sampling Type (dCF05 & dCF06)
Three types of data sampling are available: average,
snapshot and USDA. When configured to average, the av-
erage of readings taken every minute over the recording
period is recorded. When configured to snapshot, the
sensor reading at the log interval time is recorded. When
USDA is configured, supply and return temperature read-
ings are averaged and the three USDA probe readings are
snapshot.
3.7.7 Alarm Configuration (dCF07 - dCF10)
USDA and cargo probe alarms are configured to AUTO.
The probes act as a group. This function is designed to
assist users who keep the DataCORDER configured for
USDA recording, but do not install the probes for every
trip. If all the probes are disconnected, no alarms are ac-
tivated. As soon as one of the probes is installed, all of
the alarms are enabled and the remaining probes that
are not installed will give active alarm indications.
3.7.8 DataCORDER Power Up
The DataCORDER may be powered up in any one of
four ways:
1.
Normal AC power: The DataCORDER is powered
up when the unit is turned on via the Stop-Start
switch.
2. Controller DC battery pack power: If a battery pack is
installed, the DataCORDER will power up for
communication when an interrogation cable is
plugged into an interrogation receptacle.
3. External DC battery pack power: A 12 volt battery
pack may also be plugged into the back of the
interrogation cable, which is then plugged into an
interrogation port. No controller battery pack is
required with this method.
4. Real Time Clock demand: The DataCORDER is
equipped with a charged battery pack and when AC
power is not present, the DataCORDER will power
up when the real time clock indicates that a data
recording should take place. When the DataCORD-
ER is finished recording, it will power down.
During DataCORDER power-up, while using bat-
tery-pack power, the controller will perform a hardware
voltage check on the battery. If the hardware check
passes, the controller will energize and perform a soft-
ware battery voltage check before DataCORDER log-
ging. If either test fails, the real time clock battery
power-up will be disabled until the next AC power cycle.
Further DataCORDER temperature logging will be pro-
hibited until that time.
An alarm will be generated when the battery voltage
transitions from good to bad indicating that the battery
pack needs recharging. If the alarm condition persists
for more than 24 hours on continuous AC power, it indic-
ates that the battery pack needs replacement.
3.7.9 Pre-trip Data Recording
The DataCORDER will record the initiation of a Pre-trip
test (refer to paragraph 3.6) and the results of each test
included in Pre-trip. The data is time-stamped and may
be extracted via the Data Retrieval program. Refer to
Table 3 − 9 for a description of the data stored in the Da-
taCORDER for each corresponding Pre-trip test.
3.7.10 DataCORDER Communications
Data retrieval from the DataCORDER can be
accomplished by using the DataLINE, DataBANK Card,
or a communications interface module.
NOTE
A DataLINE or a communications interface mo-
dule display of Communication Failed is caused
by faulty data transfer between the DataCORD-
ER and the data retrieval device. Common
causes include:
1. Bad cable or connection between DataCORDER
and data retrieval device.
2. PC communication port(s) unavailable or
misassigned.