Campbell-scientific ASPTC Aspirated Thermocouple Manual de usuario descargar pdf (Pagina 12)

Model ASPTC Aspirated Shield with Fine Wire Thermocouple

EXAMPLE 4. Sample CR10(X) Instructions for Measuring Temperature

Gradient with the ASPTC

1: Temp (107) (P11)*

1: 1 Reps

2: 1 SE Channel

3: 3 Excite all reps w/E3

4: 1** Loc [ CR10TCR_C ]

5: 1 Mult

6: 0 Offset

2: Thermocouple Temp (SE) (P13)

1: 1 Reps

2: 21† ± 2.5 mV 60 Hz Rejection Range

3: 12*** SE Channel

4: 2 Type E (Chromel-Constantan)

5: 1** Ref Temp Loc [ CR10TCR_C ]

6: 2** Loc [ ASP_LWR ]

7: 1 Mult

8: 0 Offset

CAUTION: The CR10TCR reference temperature must be in degrees Celsius when used in

Instruction 14.

3: Thermocouple Temp (DIFF) (P14)

1: 1 Reps

2: 21† ± 2.5 mV 60 Hz Rejection Range

3: 6*** DIFF Channel

4: 2 Type E (Chromel-Constantan)

5: 2** Ref Temp Loc [ ASP_LWR ]

6: 3** Loc [ ASP_UPR ]

7: 1‡ Mult

8: 0‡ Offset

4: Z=X-Y (P35)

1: 2** X Loc [ ASP_LWR ]

2: 3** Y Loc [ ASP_UPR ]

3: 4** Z Loc [ del_ASP ]

* Instruction 17 is used to find the

panel temperature on a 21X.

** Proper entries will vary depending on the program.

*** Single ended input channel 8 and

differential input channel 4 on the 21X.

† On the 21X the 5 mV slow input range is used.

‡ For degrees Fahrenheit use a Mult of 1.8 and Offset of 32.

4. Maintenance

Keep the intake and thermocouple free from debris. Debris can be blown away

with a can of compressed air. Tweezers may also be used to pick the debris

from the thermocouple. Be careful not to damage the junction.

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Campbell-scientific ASPTC Aspirated Thermocouple Manual de usuario Pagina 12

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