Sensor Installation Handbook Preface 3rd edition - Siemens ...

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Practical tips 88 Average measurements in water pipes Average measurements are recommended in all pipes where stratification occurs (e.g. downstream of a mixing point), or where the sensor needs to be installed as close as possible to the mixing point (to reduce lag). For averaging purposes, either four sensors can be distributed round the circumference of the pipe or an averaging sensor can be wrapped round the pipe. These arrangements should be used in systems with large pipe diameters and variable volumes of water. Electrical connection of 4 averaging sensors for measurement of the average temperature.
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Sensor Installation Handbook Prefac
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Sensor Installation Handbook Prefac
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General notes for all sensors Alway
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Always allow a sufficient length of
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Temperature Immersion sensors · Wa
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Water-resistant seal Chilled water
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If the active length (a) of the sen
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Sensors mounted without immersion p
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Temperature Probe sensors · Air En
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The ambient temperature at the devi
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Temperature Averaging sensors Allow
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Do not bend the capillary too tight
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When installing on "drawer"-type un
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Use spacing clips to maintain a 50
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Do not install on external walls. A
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Temperature Outdoor sensors The sys
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Seal gaps between cable/plastic tub
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Temperature Surface-mounted strap-o
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Temperature Wind sensors Install on
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Avoid shade (from trees or neighbou
Page 45 and 46: A test hole must be provided for ev
Page 47 and 48: Distance for adiabatic humidificati
Page 49 and 50: Humidity sensor Average humidity me
Page 51 and 52: Seal gaps between cable/plastic tub
Page 53 and 54: Where there is a risk of condensati
Page 55 and 56: Avoid using tips which protrude int
Page 57 and 58: Where more than one sensor is used,
Page 59 and 60: Pressure Liquids Pressure tapping p
Page 61 and 62: Pressure measurement in conjunction
Page 63 and 64: Flow monitoring Water Correct insta
Page 65 and 66: Avoid recesses (e.g. shelving) and
Page 67 and 68: Floats: These are used in open and
Page 69 and 70: Principles of operation General All
Page 71 and 72: Example of response characteristic
Page 73 and 74: Stepless devices Stepless devices (
Page 75 and 76: Bimetal rod and tube Material Const
Page 77 and 78: Electrical resistance sensors Metal
Page 79 and 80: Thermocouples These consist of two
Page 81 and 82: Absolute humidity x g H 2O per kg o
Page 83 and 84: Electronic systems Piezoelectric el
Page 85 and 86: Measuring water velocity and flow L
Page 87 and 88: Room temperature measurement Room s
Page 89 and 90: Calibration of measuring sensors Th
Page 91 and 92: Practical tips Frost protection the
Page 93 and 94: Preventive frost protection thermos
Page 95: Pressure control in VAV systems The
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Sensor Installation Handbook Preface 3rd edition - Siemens ...

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