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3.1 Performance Specifications
3
SPECIFICATIONS
* 1 To satisfy with the accuracy, a warm-up (power distribution) period of 30 minutes is required.
* 2 Calculate the accuracy in the following method.
(Accuracy) = (conversion accuracy) + (temperature characteristic) (operating ambient
temperature variation) + (cold junction temperature compensation accuracy)
An operating ambient temperature variation indicates a deviation of the operating ambient
temperature from the 25 5 range.
Example: When using the thermocouple B (refer to Section 3.1 (2)) with the operating ambient
temperature of 35 and the measured temperature of 1000 , the accuracy is as follows.
( 2.5 )+( 0.4 )(35-30 )+( 1 )= 5.5
* 3 The conversion speed indicates the maximum time from when the input temperature changes till
when the measured temperature value of buffer memory is batch-updated.
* 4 The sampling period indicates the period batch-updating the measured temperature value in one
channel.
* 5 When disconnection state is detected, output values are selected from "Up scale", "Down scale" or
Given scale". (Refer to Section 3.2.2)
* 6 The Q68TD-G-H01 does not have the disconnection detection function. However, the
disconnection monitor function is available to select a measured temperature value on a
disconnection occurrence from either "Up scale", "Down scale", or "Given value". (Refer to Section
3.2.3)
It takes up to 11s to check a disconnection state.