Total tolerance
= (1) Sensor tolerance + Tolerance related to the measuring instrument main body （(2) Tolerance of the measuring instrument main body + (3) Reference junction compensation system + (4) Temperature coefficient）
For example, when using the sensor A-213E-01-1-TC1-ASP and the measuring instrument main body HD-1200E to obtain the total tolerance at 150°C:
(1) Sensor tolerance:
It is ±2.5°C between 0°C and 333°C.
(2) Tolerance of the measuring instrument main body:
It is ±(150°C x 0.0005 + 0.2°C) = ±0.275°C and rounded off to ±0.3°C.
(3) Reference junction compensation system:
It is ±0.2°C when the measuring instrument main body is in an environment of 25°C±10°C.
(4) Temperature coefficient:
Because this correction is applicable when the measuring instrument main body is outside the environment of 25°C±10°C, no correction is made when a working environment is within this temperature range.
So far the sensor tolerance is ±2.5°C and the tolerance related to the measuring instrument main body is±0.5°C.
Because the HD series has been finely adjusted for each unit at shipment time so that the tolerance of the measuring instrument main body is satisfied, it actually comes to ±0.3°C.
Accordingly, the total tolerance of the A-213E-01-1-TC1-ASP and the HD-1200E at 150°C is ±2.5°C (sensor tolerance) + ±0.3°C (tolerance related to the measuring instrument main body) = 2.8°C.
