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

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Temperature · Cable sensors 12 Temperature Cable sensors · Water The sensor element is not affected by orien - tation, but must be fully immersed in the medium to be measured (air or water). Use a file to ensure a smooth, clean contact surface, and fill the space between the sensor and the pipe with heat-conductive compound to improve thermal conductivity.
Temperature Probe sensors · Air Ensure that the full length of the sensor probe is exposed to the air flow. A test hole must be provided adjacent to every sensor. Do not use probe-type sensors in areas where stratification can occur (e.g. downstream of mixing dampers, heating coils, cooling coils or heat recovery units). Averaging sensors should be considered. Temperature · Probe sensors 13
Page 1: Sensor Installation Handbook Prefac
Page 5: Sensor Installation Handbook Prefac
Page 9 and 10: General notes for all sensors Alway
Page 11 and 12: Always allow a sufficient length of
Page 13 and 14: Temperature Immersion sensors · Wa
Page 15 and 16: Water-resistant seal Chilled water
Page 17 and 18: If the active length (a) of the sen
Page 19: Sensors mounted without immersion p
Page 23 and 24: The ambient temperature at the devi
Page 25 and 26: Temperature Averaging sensors Allow
Page 27 and 28: Do not bend the capillary too tight
Page 29 and 30: When installing on "drawer"-type un
Page 31 and 32: Use spacing clips to maintain a 50
Page 33 and 34: Do not install on external walls. A
Page 35 and 36: Temperature Outdoor sensors The sys
Page 37 and 38: Seal gaps between cable/plastic tub
Page 39 and 40: Temperature Surface-mounted strap-o
Page 41 and 42: Temperature Wind sensors Install on
Page 43 and 44: 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 and 96:
Pressure control in VAV systems The
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Sensor Installation Handbook Preface 3rd edition - Siemens ...

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