Thermo King CRR-40 119, Manual

Page: 54 / 170

MP-3000a Controller
54
• Miscellaneous Functions Menu: Menu
screens in this group display date/time,
C/F, cargo data, program version and run
time (hourmeters) information.
• Configuration Menu: Menu screens in this
group display refrigerant type, in-range
setting, container ID, contrast (screen),
language, unit type, reefer type and zero
cur-rent status.
• Datalogger Menu: Menu screens in this
group display temperature log, event log,
set log time and PTI log.
• Refcon Remote Monitoring (RMM) State:
Menu screen show current remote
monitoring state (Offline, Zombie or
On-line).
Status Indicator LEDs
Eight status indicator LEDs are located in the top
LED display and signal the following:
• Supply (Air Temperature)
• Return (Air Temperature)
• Humidity Mode (Humidification set to On
in Setpoint menu)
• Compressor (Cooling On)
• Heat (On)
• Defrost
• In-Range (Temperature)
• Alarm
The indicator LEDs stay ON continuously to
indicate sensor temperature display, unit
operating mode or condition.
The Alarm LED flashes ON and OFF
continuously when a Check Alarm (Level 2
Alarm) or Shutdown Alarm (Level 1Alarm)
occurs. Less serious Log Alarms (Level 3 Alarm)
are recorded but do not activate the Alarm LED
(see Alarms Menu in this chapter for more
information).
Data Recording and Downloading
Data
The controller’s datalogger can record sensor
temperatures as well as loss of power, alarms,
sensor failure, setpoint change and unit shutdown
events. All data logs include the time and date;
setpoint temperature; supply, return, ambient,
USDA1, USDA2 and USDA3 sensor
temperatures; and humidity sensor. All
temperature logs can be viewed from the
controller’s LCD message display.
Data logging intervals are selectable from 1
minute or 1/2, 1, 2 or 4 hours.
The logging of USDA sensors is fixed at 1 hour
intervals to comply with USDA requirements. A
logging test of USDA sensors at 1 minute
intervals is possible for 72 minutes. USDA data
can not be downloaded during the logging test.
After 72 minutes, controller returns to previous
logging interval and clears USDA test data from
datalogger memory.
If the unit power supply is disconnected, the
datalogger will continue to register 120
temperature logs (except humidity sensor) when
battery voltage is above 11.4 volts. These will.be
maintained until the unit is reconnected to power,
and the battery automatically re-charged.
Trip data can be retrieved (but not erased) from
the datalogger memory using a DRU-II or
SmartSponge handheld data retriever, or a
REFCON power line remote monitoring system.
DRU-II data transfer rate based on a 1 hour log
interval is about 15 seconds per month of event
logs and about 70 seconds per month of
temperature logs. For example, downloading 90
days of data logs would take about 75 seconds for
event logs only and about 45 seconds for
temperature logs only.