Performance Verification
1-18
RTD Temperature reading checks
Use a precision decade resistance box (see Table 1-1) to sim-
ulate probe resistances at various temperatures (Table 1-12).
Be sure to use 4-wire connections between the decade resis-
tance box and the Model 2001.
Table 1-12
RTD probe temperature reading checks
RTD probe
type
Applied
resistance
Displayed
temperature (°C)
PT385
(∝=0.00385055)
64.30¾
100¾
109.73¾
138.51¾
313.71¾
-90.08 to -89.92
-0.08 to +0.08
24.92 to 25.08
99.92 to 100.08
599.86 to 600.14
PT3916
(∝=0.00392)
63.68¾
100¾
109.90¾
139.16¾
266.94¾
-90.08 to -89.92
-0.08 to +0.08
24.92 to 25.08
99.92 to 100.08
449.86 to 450.14