Programming53Operating Instructions HYGROPHIL® H 4230-12 BA 0602070 or ENTER Don’t make any changes, go to the next menu(hose heating parameters)1 Change the programming of analogue output 2Analogue output 2 is programmed in the same way as analogue output 1.5.2.2 Programming the hose heating parame-ters Ideally, the gas sampling hose temperature should be 20-30 °C abovethe dew-point temperature. When HYGROPHIL H 4230 is delivered, the gas sampling hose temper-ature is set to 120 °C. If you do not have any information with regard to the range in which thehumidity of the gas to be measured lies, start the measurements with thedefault value. Observe the dew-point temperature during the measurements. If the measured dew-point temperatures lie between 60 and 90 °C, nochange needs to be made to the gas sampling hose temperature. If the dew-point temperature is regularly over 90 °C, the gas samplinghose temperature must be increased to 130 ... 140 °C. If the dew-point temperature is below 60 °C, you must reduce the gassampling hose temperature in order to prevent display errors.The following diagram is intended to help you find the most suitable gassampling hose temperature.10080604020020406080100120140Dew-point temperature [°C]Gas sampling hose temperature [°C]PRG-OUTPUTCHANNEL 2 ? 1/0
