Relative Humidity (%RH)
Relative humidity is often found to help evaluate
air comfort or to find the target superheat of an air
conditioning system. There are a few ways to find
%RH. You can use an accessory head like the
ARH4 to measure %RH, wet bulb, dew point or dry
bulb directly. You could also use an actual sling psy-
chrometer, or use the ATWB1 wet bulb thermocou-
ple and a typical dry bulb thermocouple with the
chart to the left.
Relative Humidity (%RH)
Relative humidity is often found to help evaluate
air comfort or to find the target superheat of an air
conditioning system. There are a few ways to find
%RH. You can use an accessory head like the
ARH4 to measure %RH, wet bulb, dew point or dry
bulb directly. You could also use an actual sling psy-
chrometer, or use the ATWB1 wet bulb thermocou-
ple and a typical dry bulb thermocouple with the
chart to the left.
50
52
54
56
58
60
62
64
66
68
70
72
74
76
55
71
82
94
60
49
58
68
78
89
100
65
32
40
49
57
66
75
85
95
70
20
27
34
41
48
56
64
73
81
91
100
75
11
17
22
28
35
41
48
55
63
70
78
87
96
80
4
9
14
19
24
30
36
42
48
54
61
68
76
84
85
3
7
12
16
21
26
31
36
42
48
54
60
67
90
2
6
10
14
18
23
27
32
37
42
48
53
95
2
5
9
12
16
20
24
28
33
37
42
100
2
5
8
11
15
18
22
25
29
34
105
2
4
7
10
13
16
20
23
27
110
2
4
7
9
12
15
18
21
115
2
4
6
9
11
14
16
Relative Humidity (%RH)
Dry Bulb Temperature (°F)
Wet Bulb Temperature °F
50
52
54
56
58
60
62
64
66
68
70
72
74
76
55
71
82
94
60
49
58
68
78
89
100
65
32
40
49
57
66
75
85
95
70
20
27
34
41
48
56
64
73
81
91
100
75
11
17
22
28
35
41
48
55
63
70
78
87
96
80
4
9
14
19
24
30
36
42
48
54
61
68
76
84
85
3
7
12
16
21
26
31
36
42
48
54
60
67
90
2
6
10
14
18
23
27
32
37
42
48
53
95
2
5
9
12
16
20
24
28
33
37
42
100
2
5
8
11
15
18
22
25
29
34
105
2
4
7
10
13
16
20
23
27
110
2
4
7
9
12
15
18
21
115
2
4
6
9
11
14
16
Relative Humidity (%RH)
Dry Bulb Temperature (°F)
Wet Bulb Temperature °F
