Proline Promass 83E/F/O Modbus RS485 Operating Instructions

Proline Promass 83 Modbus RS485CommissioningExample:The following is a concentration table from a reference source.Temperature 10°C 15°C 20°C 25°C 30°CDensity825 kg/m 93.6% 92.5% 91.2% 90.0% 88.7%840 kg/m 89.3% 88.0% 86.6% 85.2% 83.8%855 kg/m 84.4% 83.0% 81.5% 80.0% 78.5%870 kg/m 79.1% 77.6% 76.1% 74.5% 72.9%885 kg/m 73.4% 71.8% 70.2% 68.6% 66.9%900 kg/m 67.3% 65.7% 64.0% 62.3% 60.5%915 kg/m 60.8% 59.1% 57.3% 55.5% 53.7%!Note!The coefficients for the Promass 83 concentration algorithm should be determined with the densityin units of kg/liter, temperature in °C and concentration in decimal form (0.50, not 50%). B1, B2and B3 need to be entered into the matrix positions 7037, 7038 and 7039 in scientific notation as10 , 10 or 10 .Assume:Density (): 870 kg/m 0.870 kg/lTemperature (T): 20°CCoefficients determined as per table above:A0 = 2.6057A1 = 11.642A2 = 8.8571A3 = 0A4 = 0B1 = 2.7747 · 10 3B2 = 7.3469 · 10 6B3 = 0Calculation:K=A0+A1· +A2· 2 +A3· 3 +A4· 4 +B1·T+B2·T 2 +B3·T3= 2.6057 + 11.642 · 0.870 + (8.8571) · 0.870 + 0 · 0.870 + 0 · 0.870 + (2.7747)·10 · 20+ (7.3469)·10 · 20 + 0 · 20 = 0.7604= 76.04%a0004620Issue/Rev. 0.2 (12/12) MN0M030 • Page 77