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

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Pressure · Air 48 Connect the sensor and measuring instrument to the same point. The tapping point must not be located where it will be affected by obstructions to the flow.
Where more than one sensor is used, the sensors should be installed on the same plane in the flow, and not in a position where one device will obstruct the air flow to the other. dg = Equivalent diameter, page 45 Leave sufficient clearance downstream of any obstacles. Pressure · Air 49
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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 and 20: Sensors mounted without immersion p
Page 21 and 22: Temperature Probe sensors · Air En
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: Avoid using tips which protrude int
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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