Carrier Container Refrigeration Unit manual

1.2.4 DataCORDER Capabilities (Micro-Link 2 and Micro-Link 2i only)

The Carrier DataCORDER is a flexible recording device with the following capabilities:

a. Sensors

Up to six thermistor temperature probes can be connected directly to the DataCORDER. These probes are referred to as:

1.Supply

2.Return

3.USDA 1

4.USDA 2

5.USDA 3

6.Auxiliary Cargo Probe

On separate DataCORDER modules (Micro-Link 2 only) there are also two 0-5vdc inputs available for future expansion. In addition to these inputs, an additional eight sensors connected to the refrigeration or controlled atmosphere controllers can be recorded.

1.This list of sensors includes:

2.Humidity Sensor

3.Controlled Atmosphere Gas Sensors

4.Temperature Controller Probes (including: supply, return, and defrost temperatures)

5.Controller Pressure Sensors

6.Current Sensors

7.Line Voltage Sensor

8.Frequency

NOTE

The supply and return sensors (SRS and RRS) used by the DataCORDER are not the same supply and return sensors (STS and RTS) used by the Controller.

b. Log Interval

Micro-Link DataCORDER’s log data on 60 minute intervals from time of trip start. Micro-Link 2/2i DataCORDER sensors can be recorded at intervals of 15, 30, 60 (default), or 120 minutes. Data is logged on the exact interval, using a precise real time clock (RTC). All clocks are set to Greenwich Mean Time at the factory and all recording is done on the exact interval (at 12:00 for example, rather than 12:03).

NOTE

Unless specified by your customer to set the DataCORDER clocks for another time zone, the clocks should NOT be adjusted.

c. Sensor Recording Format

Sensors can be recorded in a wide variety of formats. A one byte temperature format can be used for compact data storage. A two byte format can be used for high resolution over the entire temperature range.

1.One byte format (default): 0.25C (.45F) steps in chilled mode; 0.5C (.9F) steps in frozen mode

2.Two byte format: 0 .010C steps for entire range

d. Sampling Type

1.Averaged (default): shows average of data from every minute over the logging interval.

2.Snapshot: shows snapshot of data at the log interval.

3.USDA: shows snapshot of data at a 60 minute log interval.

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