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The Ashcroft AM2-TC1 allows the ATE-2 to read types J, K, T, E, R, S, B and N thermocouple connectors. Then the ATE-2 shows the measurements of temperature or millivolts by using the thermocouple module.
Unit of Measure (selectable): °C, °F, °K,° R and millivolts
Reference Junction (selectable):
Automatic Mode: The AM2-TC1 module incorporates
an internal resistor/thermistor based reference
junction, which may be selected for use in
the temperature readout mode.
Manual Mode: An external reference junction may
be used in place of the internal junction. External
reference junctions may be applied in the temperature
or direct millivolt readout modes.
Resolution Reading in Temperature Units
(selectable):
1, .1 or .01 degrees. “Auto” mode selection that
allows the ATE-2 to automatically configure the
readout to the highest significant resolution
(resolution closest to the tolerance) for the thermocouple
type selected.
Resolution Reading in Millivolts: .001 millivolts
Thermocouple Connection
(to interface module):
Requires a “miniature thermocouple connector”
(Omega type SMP), specifically matched to the
thermocouple type to be used. These connectors
may be purchased as an accessory under the following
part numbers:
THERMOCOUPLE SPECIFICATION TABLE
Thermocouple Type | Measurement Range (°C) | Accuracy @ 25°C (Not Including Internal Reference Junction) Expressed as ±°C | Accuracy @ 25°C (Including Internal Reference Junction) Expressed as ±°C | Max Additional Error Due to Ambient Temperature Deviation From 25°C. Expressed as Additional °C Deviation from 25°C |
J | -210 to -151 -150 to 1200 | 0.7 0.3 | 1.1 0.4 | 0.02 0.01 |
K | -240 to -201 -200 to -101 -100 to 999 | 1.5 1.0 0.5 | 2.2 1.5 0.8 | 0.05 0.03 0.02 |
T | -250 to -201 -200 to -101 -100 to 400 | 1.5 0.8 0.5 | 2.2 1.2 0.8 | 0.05 0.03 0.02 |
E | -250 to -201 -200 to -101 -100 to 400 | 1.2 0.6 0.3 | 2.0 1.1 0.6 | 0.04 0.02 0.01 |
R & S | -50 to 299 300 to 1768 | 3.4 1.2 | 3.6 1.3 | 0.10 0.04 |
B | 100 to 199 200 to 499 500 to 999 1000 to 1820 | 14.0 5.0 3.0 1.2 | 14.0 5.0 3.0 1.2 | 0.44 0.16 0.08 0.04 |
N | -250 to -226 -225 to -101 -100 to 1300 | 4.3 2.1 1.0 | 5.7 2.8 1.4 | 0.14 0.07 0.02 |
AMBIENT TEMPERATURE EFFECT:
To calculate, multiply degrees deviation from
25°C times the value listed in the far right column
of the listed table. Only applied when using the
internal reference junction, within the ambient
window of 0-50°C.
TO CALCULATE TOTAL SYSTEM/MEASUREMENT
ACCURACY:
Accuracy = System Accuracy @ 25°C + System
Ambient Temperature Effect + Inaccuracy of
Thermocouple Device
SYSTEM ACCURACY (BASED ON DIRECT MILLIVOLT
READING FROM THERMOCOUPLE):
Includes the base unit and AM2-TC1 interface
module. (Does not include inaccuracy due to the
thermocouple device. Reference junction not
applicable to direct millivolt readings.)
Input Range of Module | Accuracy @ 25°C | Max. Additional Error Due to Ambient Temperature Deviation From 25°C. Expressed As Additional Millivolt Error Per Each °C Deviation From 25°C |
| 10 to 100mV | ±0.01 to 100mV | .001 |
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