ACR Electronics SmartReader Plus Instrukcja Użytkownika Pobierz pdf (Strona 42)

SmartReader Data Loggers

Thermocouple Type

Positive (+) Wire

Negative (-) Wire

White

Red

Yellow

Red

Blue

Red

Black

Red

2. Connect the logger to your computer and run TrendReader. Select the equation number

for each active thermocouple channel (refer to the Specifications section).

3. Check that you have the thermocouple's polarity correct by warming its tip. You will see

the Realtime temperature reading increase if the wires are connected correctly. If the

temperature decreases, reverse the connections.

NOTE: The inputs are not isolated from each other (they use the same common

"-" terminal internally). This means that the thermocouple tips cannot be touching

each other. If they are touching or are fastened to a conducting surface like a

metal frame, some looping can occur and the readings may fluctuate. They must

be insulated or prevented from making contact with each other electrically. Do

not use grounded thermocouples.

1.8.3 Specifications

Accuracy: ±1% of range + resolution

Type J Thermocouple Inputs

Thermocouple

Equation

Range

Resolution

1 (Narrow)

-20 to 190°C

(0 to 370°F)

1.4°C (2.5°F)

2 (Wide)

-50 to 600°C

(-55 to 1100°F)

5°C (9°F)

Type K Thermocouple Inputs

Thermocouple

Equation

Range

Resolution

1 (Narrow)

-25 to 230°C

(-10 to 440°F)

1.7°C (3°F)

2 (Wide)

-100 to 900°C

(-145 to 1650°F)

6.7°C (12°F)

Type S Thermocouple Inputs

Thermocouple

Equation

Range

Resolution

1 (Narrow)

0 to 960°C

7°C (12.6°F)

1 2 ... 37 38 39 40 41 42 43 44 45 46 47 ... 102 103

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