Solartron Mobrey 7828, Technical Manual

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Reference Data 7828 Density Transmitter Technical Manual
E-6
78285000_AA
E.2.2 PLATINUM RESISTANCE LAW (TO DIN 43 760)
°C Ohms °C Ohms °C Ohms °C Ohms °F Ohms °F Ohms
-50 80.31 5 101.91 60 123.24 115 144.17 0 93.03 100 114.68
-45 82.29 10 103.90 65 125.16 120 146.06 10 95.21 110 116.83
-40 84.27 15 105.85 70 127.07 125 147.94 20 97.39 120 118.97
-35 86.25 20 107.79 75 128.98 130 149.82 30 99.57 130 121.11
-30 88.22 25 109.73 80 130.89 135 151.70 32 100.00 140 123.24
-25 90.19 30 111.67 85 132.80 140 153.58 40 101.74 150 125.37
-20 92.16 35 113.61 90 134.70 145 155.45 50 103.90 160 127.50
-15 94.12 40 115.54 95 136.60 150 157.31 60 106.07 170 129.62
-10 96.09 45 117.47 100 138.50 155 159.18 70 108.23 180 131.74
-5 98.04 50 119.40 105 140.39 160 161.04 80 110.38 190 133.86
0 100.00 55 121.32 110 142.29 165 162.90 90 112.53 200 135.97
E.2.3 DENSITY OF AMBIENT AIR (IN KG/M
3
)
Air
Pressure
Air Temperature (°C)
(mb) 6 10 14 18 22 26 30
900 1.122 1.105 1.089 1.073 1.057 1.041 1.025
930 1.159 1.142 1.125 1.109 1.092 1.076 1.060
960 1.197 1.179 1.162 1.145 1.128 1.111 1.094
990 1.234 1.216 1.198 1.180 1.163 1.146 1.129
1020 1.271 1.253 1.234 1.216 1.199 1.181 1.163
Taken at a relative humidity of 50%
E.2.4 DENSITY OF WATER (IN KG/M
3
TO ITS - 90 TEMPERATURE SCALE)
Temp
°C
0 2 4 6 8 10 12 14 16 18
0
999.840 999.940 999.972 999.940 999.848 999.699 999.497 999.244 998.943 998.595
20
998.203 997.769 997.295 996.782 996.231 995.645 995.024 994.369 993.681 992.962
40
992.212 991.432 990.623 989.786 988.922 988.030 987.113 986.169 985.201 984.208
60
983.191 982.150 981.086 980.000 978.890 977.759 976.607 975.432 974.237 973.021
80
971.785 970.528 969.252 967.955 966.640 965.305 963.950 962.577 961.185 959.774
100
958.345
Use pure, bubble-free water