T-318
3
−
14
3.8.3 Sensor Configuration (dCF02)
Two modes of operation may be configured, the
Standard Mode and the Generic Mode.
a. Standard Mode
In the standard mode, the user may configure the
DataCORDER to record data using one of seven
standard configurations. The seven standard
configuration variables, with their descriptions, are
listed in Table 3-3.
The six thermistor inputs (supply, return, USDA #1, #2,
#3, and cargo probe) and the humidity sensor input will
be generated by the DataCORDER. An example of a
report using a standard configuration is shown in
NOTE
The DataCORDER software uses the supply
and return recorder sensors. The temperature
control software uses the supply and return
temperature sensors.
b. Generic Mode
The generic recording mode allows user selection of the
network data points to be recorded. The user may select
up to a total of eight data points for recording. A list of the
data points available for recording follows. Changing the
configuration to generic and selecting which data points
to record may be done using the Carrier Transicold Data
Retrieval Program.
1.
Control mode
2.
Control temperature
3.
Frequency
4.
Humidity
5.
Phase A current
6.
Phase B current
7.
Phase C current
8.
Main voltage
9.
Suction modulation valve percentage
10. Discrete outputs (See Note )
11. Discrete inputs (See Note )
12. Ambient sensor
13. Compressor suction sensor
14. Compressor discharge sensor
15. Return temperature sensor
16. Supply temperature sensor
17 Defrost temperature sensor
18. Discharge pressure transducer
19. Suction pressure transducer
20. Condenser pressure transducer
3.8.4
Logging Interval (dCF03)
The user may configure four time intervals between
data recordings. Data is logged at exact intervals in
accordance with the real-time clock. The clock is factory
set at Greenwich Mean Time.
3.8.5 Thermistor Format (dCF04)
The user may configure the format in which the
thermistor readings are recorded. The low resolution is
a 1 byte format and the normal resolution is a 2 byte
format. The low resolution requires less memory and
records temperature in 0.25
°
C (0.45
°
F) increments
when in perishable mode or 0.5
°
C (0.9
°
F) increments
when in the frozen mode. The normal resolution records
temperature in 0.01
°
C (0.02
°
F) increments for the entire
range.
Table 3-2 DataCORDER Configuration Variables
CONFIGURATION NO.
TITLE
DEFAULT
OPTION
dCF01
(Future Use)
−−
−−
dCF02
Sensor Configuration
2
2,5,6,9,54,64,94
dCF03
Logging Interval (Minutes)
60
15,30,60,120
dCF04
Thermistor Format
Short
Low, Normal
dCF05
Thermistor Sampling Type
A
A,b,C
dCF06
Controlled Atmosphere/Humidity Sampling Type
A
A,b
dCF07
Alarm Configuration USDA Sensor 1
A
Auto, On, Off
dCF08
Alarm Configuration USDA Sensor 2
A
Auto, On, Off
dCF09
Alarm Configuration USDA Sensor 3
A
Auto, On, Off
dCF10
Alarm Configuration Cargo Sensor
A
Auto, On, Off