MIL-DTL-25026C
exceed the tolerance specified. If greater overall indicator accuracy can be obtained by setting
the pointer to 700±5°C with the specified voltage for 700°C, the pointer shall be so positioned.
TABLE I Test Tolerances.
Scale Error at Room
Test
Scale Error at
Scale Error at
Scale Error at
Temp After
Point
Room Temp
Low Temp
High Temp
Vibration
(°C)
(± °C)
(± °C)
(± °C)
(± °C)
0
60 (60)
75 (75)
70 (70)
75 (70)
200
40 (40)
55 (55)
50 (50)
55 (50)
400
30 (30)
45 (45)
40 (40)
45 (40)
500
20 (20)
35 (35)
30 (30)
35 (30)
600
10 (10)
25 (25)
20 (20)
25 (20)
700
5 (5)
20 (20)
15 (15)
20 (15)
800
10 (10)
25 (25)
20 (20)
25 (20)
900
20 (20)
35 (35)
30 (30)
35 (30)
1000
20 (20)
35 (35)
30 (30)
35 (30)
Extreme Low Temp Exposure
Scale Error at Room
Scale Error at
Scale Error at
Scale Error at
Temp After Low
Test
Room Temp After
Room Temp After
Low Temp
Temp
Point
High Temp
Salt Spray
(± °C)
(± °C)
(°C)
(± °C)
(± °C)
0
90 (75)
80 (65)
80 (65)
80 (60)
200
70 (55)
60 (45)
60 (45)
60 (40)
400
60 (45)
50 (35)
50 (35)
50 (30)
500
50 (35)
40 (25)
40 (25)
40 (20)
600
40 (25)
30 (15)
30 (15)
30 (10)
700
35 (20)
25 (10)
25 (10)
25 (5)
800
40 (25)
30 (15)
30 (15)
30 (10)
900
50 (35)
40 (25)
40 (25)
40 (20)
1000
50 (35)
40 (25)
40 (25)
40 (20)
4.3.1.2 Position error. The position errors of the indicator shall be conducted at any
point on the scale between 400°C and 900°C by applying the test voltage and the maximum
change in indication shall not exceed 25°C.
4.3.1.3 Friction error. The maximum difference in reading, before and after tapping,
shall not exceed 30°C.
5
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