Valley VRI-iS, Installation Manual

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80
Troubleshooting
GPS Angular Conversion Table
Use the GPS Angular Conversion table to convert the GPS angular degrees from minutes and seconds to
decimal degrees when manually setting up the GPS coordinates in the Pro2 control panel. See Figure 80-1.
Minutes and Seconds into Decimals of a Degree
(Based on 1 second = 0.00027778 degrees)
Minutes into Decimals of a Degree Seconds into Decimals of a Degree
Min. Deg. Min. Deg. Min. Deg. Sec. Deg. Sec. Deg. Sec. Deg.
1 0.0167 21 0.3500 41 0.6833 1 0.0003 21 0.0058 41 0.0114
2 0.0333 22 0.3667 42 0.7000 2 0.0006 22 0.0061 42 0.0117
3 0.0500 23 0.3833 43 0.7167 3 0.0008 23 0.0064 43 0.0119
4 0.0667 24 0.4000 44 0.7333 4 0.0011 24 0.0067 44 0.0122
5 0.0833 25 0.4167 45 0.7500 5 0.0014 25 0.0069 45 0.0125
6 0.1000 26 0.4333 46 0.7667 6 0.0017 26 0.0072 46 0.0128
7 0.1167 27 0.4500 47 0.7833 7 0.0019 27 0.0075 47 0.0131
8 0.1333 28 0.4667 48 0.8000 8 0.0022 28 0.0078 48 0.0133
9 0.1500 29 0.4833 49 0.8167 9 0.0025 29 0.0081 49 0.0136
10 0.1667 30 0.5000 50 0.8333 10 0.0028 30 0.0083 50 0.0139
11 0.1833 31 0.5167 51 0.8500 11 0.0031 31 0.0086 51 0.0142
12 0.2000 32 0.5333 52 0.8667 12 0.0033 32 0.0089 52 0.0144
13 0.2167 33 0.5500 53 0.8833 13 0.0036 33 0.0092 53 0.0147
14 0.2333 34 0.5667 54 0.9000 14 0.0039 34 0.0094 54 0.0150
15 0.2500 35 0.5833 55 0.9167 15 0.0042 35 0.0097 55 0.0153
16 0.2667 36 0.6000 56 0.9333 16 0.0044 36 0.0100 56 0.0156
17 0.2833 37 0.6167 57 0.9500 17 0.0047 37 0.0103 57 0.0158
18 0.3000 38 0.6333 58 0.9667 18 0.0050 38 0.0106 58 0.0161
19 0.3167 39 0.6500 59 0.9833 19 0.0053 39 0.0108 59 0.0164
20 0.3333 40 0.6667 60 1.0000 20 0.0056 40 0.0111 60 0.0167
Figure 80-1 GPS Angular Conversion Table
Angular Degree Examples
An angular degree in degrees, minutes, seconds will look like the following examples:
• 10° 11´ 37 ˝ , reads as 10 degrees, 11 minutes,
37 seconds.
(a) Convert minutes and seconds to a decimal
degree value using the table in Figure 80-1.
11 minutes = 0.1833 degrees
37 seconds = 0.0103 degrees
• 12° 5.245´, read as 12 degrees, 5.245 minutes .
(a) Convert decimals of a minute to decimal
degrees using the table in 80-1 and multi-
ply the decimal of a minute by 0.0167.
5 minutes = 0.0833 degrees
0.245 minutes =
0.245 × 0.0167 = 0.0041 degrees
(b) Add all decimal degree values together.
10 degrees = 10.0000 degrees
11 minutes = 0.1833 degrees
37 seconds = 0.0103 degrees
10˚ 11' 37" = 10.1936 degrees
(b) Add all decimal degree values together.
12 degrees = 12.0000 degrees
5 minutes = 0.0833 degrees
0.245 minutes = 0.0041 degrees
12˚ 5.245' = 12.0874 degrees