ACR Electronics SmartReader Plus Manuel d'utilisateur télécharger pdf (Page 37)

SmartReader Data Logger

1.7

SmartReader 5 Thermocouple Logger

The SmartReader 5 Thermocouple Logger can monitor and record temperatures from type J,

K, T, or S type thermocouples.

Figure 5-1: SmartReader 5

1.7.1 Description

The SmartReader 5 has two external thermocouple temperature channels and one internal

thermistor temperature channel. There are two different temperature ranges:

· Channel 1 (Low) is suited for use over a relatively narrow temperature range. It

provides the best resolution readings.

· Channel 2 (High) is useful over a much wider temperature range thus offering greater

application flexibility. Resolution is coarser using this channel.

For information on temperature ranges and resolutions applicable for the different types of

thermocouples and channels you want to use, refer to the Specifications section.

1.7.2 Setup and Use

The internal thermistor temperature channel for the SmartReader 5 is used to simulate a

reference junction for the thermocouples -- it must always be enabled.

1. Connect a J, K, T, or S type thermocouple to one or both channels. Make sure that you

observe polarity when making connections. To do this, connect a thermocouple's

negative wire (usually red) to the "-" terminal of the channel you want to use. Connect the

other (positive) wire to the "+" terminal. The following table lists the ANSI color code for

the thermocouple wires:

1 2 ... 32 33 34 35 36 37 38 39 40 41 42 ... 102 103

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ACR Electronics SmartReader Plus Manuel d'utilisateur Page 37