4.4 Installation of Sampling Element and Sensitive Element
4.4.1 Quantity for acceptance inspection.
1 The sampling elements and sensitive elements exposed to high-temperature，high-pressure，negative-pressure，combustible，explosive，toxic and harmful media shall be inspected by 100%.
2 The sampling elements and sensitive elements exposed to middle-and lower pressure，normaltemperature innoxious media shall be randomly inspected by 30% according to the type of the sampling element and sensitive element.
3 100 % alloy steel material spectrum shall be re-inspected and recorded.
4.4.2 Installation of temperature measuring element.
1 Installation，inspection and acceptance of steam，water，oil pipe temperature measuring elements are detailed in Table 4.4.2-1.
Table 4.4.2-1 Installation of steam，water，oil pipe temperature measuring elements
Table 4.4.2-1（Continued）
2 Installation inspection and acceptance of sheathed thermocouple for non-fixing device for measuring metal wall temperature are detailed in Table 4.4.2-2.
Table 4.4.2-2 Installation of sheathed thermocouple for non-fixing device for measuring metal wall temperature
3 Installation inspection and acceptance of sheathed thermocouple for staple sleeve device for measuring metal wall temperature are detailed in Table 4.4.2-3.
Table 4.4.2-3 Installation of sheathed thermocouple for staple sleeve device for measuring metal wall temperature
4 Installation inspection and acceptance of special thermal resistance for measuring metal wall temperature are detailed in Table 4.4.2-4.
Table 4.4.2-4 Installation of special thermal resistance for measuring metal wall temperature
5 Installation inspection and acceptance of temperature measuring elements for fume，air，pulverized coal pipe and equipment are detailed in Table 4.2.2-5.
Table 4.4.2-5 Installation of temperature measuring elements for fume，air，pulverized coal pipe and equipment
4.4.3 Installation of pressure sampling element.
1 See Table 4.4.3-1 for installation inspection and acceptance of steam，water and oil pipe pressure sampling element.
Table 4.4.3-1 Installation of steam，water and oil pipe pressure sampling element
2 Installation inspection and acceptance of pressure sampling element for fume，air and pulverized coal pipes are detailed in Table 4.4.3-2.
Table 4.4.3-2 Installation of pressure sampling element for fume，air and pulverized coal pipes
4.4.4 Installation of flow sensing element and instrumentation equipment.
1 Installation inspection and acceptance of nozzle and standard orifice plate are detailed in Table 4.4.4-1.
Table 4.4.4-1 Installation of nozzle and standard orifice plate
Table 4.4.4-1（Continued）
2 Installation inspection and acceptance of assemble-type long-neck nozzle are detailed in Table 4.4.4-2.
Table 4.4.4-2 Installation of assemble-type long-neck nozzle
3 Installation inspection and acceptance of annubar flowmeter are detailed in Table 4.4.4.3.
Table 4.4.4-3 Installation of annubar flowmeter
4 Installation inspection and acceptance of wing speed measurement pipe are detailed in Table 4.4.4-4.
Table 4.4.4-4 Installation of wing speed measurement pipe
5 Installation inspection and acceptance of rotameter are detailed in Table 4.4.4-5.
Table 4.4.4-5 Installation of rotameter
6 Installation inspection and acceptance of oval gear flowmeter are detailed in Table 4.4.4-6.
Table 4.4.4-6 Installation of oval gear flowmeter
7 Installation inspection and acceptance of target type flowmeter are detailed in Table 4.4.4-7.
Table 4.4.4-7 Installation of target type flowmeter
8 Installation inspection and acceptance of turbine flowmeter are detailed in Table 4.4.4-8.
Table 4.4.4-8 Installation of turbine flowmeter
9 Installation inspection and acceptance of vortex（vortex street）flowmeter are detailed in Table 4.4.4-9.
Table 4.4.4-9 Installation of vortex（vortex street）flowmeter
10 Installation inspection and acceptance of electromagnetic flowmeter are detailed in Table 4.4.4-10.
Table 4.4.4-10 Installation of electromagnetic flowmeter
11 Installation inspection and acceptance of ultrasonic flowmeter are detailed in Table 4.4.4-11.
Table 4.4.4-11 Installation of ultrasonic flowmeter
4.4.5 Installation of level sensing element and instrumentation equipment.
1 Installation inspection and acceptance of differential pressure type sampling element for liquidlevel measurement are detailed in Table 4.4.5-1.
Table 4.4.5-1 Installation of differential pressure type sampling element for liquid-level measurement
Table 4.4.5-1（Continued）
2 Installation inspection and acceptance of electrical contact water level gauge are detailed in Table 4.4.5-2.
Table 4.4.5-2 Installation of electrical contact water level gauge
3 Installation inspection and acceptance of float ball level meter are detailed in Table 4.4.5-3.
Table 4.4.5-3 Installation of float ball level meter
4 Installation inspection and acceptance of float-cylinder level meter are detailed in Table 4.4.5-4.
Table 4.4.5-4 Installation of float-cylinder level meter
5 Installation inspection and acceptance of capacitance level meter are detailed in Table 4.4.5-5.
Table 4.4.5-5 Installation of capacitance level meter
6 Installation inspection and acceptance of ultrasonic（radar）level meter are detailed in Table 4.4.5-6.
Table 4.4.5-6 Installation of ultrasonic（radar）level meter
4.4.6 Installation of analytical sampling device.
1 Installation inspection and acceptance of zirconia oxygen-content analytical sampling device are detailed in Table 4.4.6-1.
Table 4.4.6-1 Installation of zirconia oxygen-content analytical sampling device
2 Installation inspection and acceptance of steam-water analytical sampling device are detailed in Table 4.4.6-2.
Table 4.4.6-2 Installation of steam-water analytical sampling device
3 Installation inspection and acceptance of gas analytical sampling device are detailed in Table 4.4.6-3.
Table 4.4.6-3 Installation of gas analytical sampling device
4 Installation inspection and acceptance of furnace tube leak probe are detailed in Table 4.4.6-4.
Table 4.4.6-4 Installation of furnace tube leak probe
5 Installation inspection and acceptance of fly ash carbon content measuring device are detailed in Table 4.4.6-5.
Table 4.4.6-5 Installation of fly ash carbon content measuring device
4.4.7 Installation of special instrument.
1 Installation inspection and acceptance of induced displacement measuring device are detailed in Table 4.4.7-1.
Table 4.4.7-1 Installation of induced displacement measuring device
2 Installation inspection and acceptance of electromagnetic vibration measuring device are detailed in Table 4.4.7-2.
Table 4.4.7-2 Installation of electromagnetic vibration measuring device
3 Installation inspection and acceptance of current vortex measuring device are detailed in Table 4.4.7-3.
Table 4.4.7-3 Installation of current vortex measuring device
4 Installation inspection and acceptance of magnetoelectric speed sensor are detailed in Table 4.4.7-4.
Table 4.4.7-4 Installation of magnetoelectric speed sensor
5 Installation inspection and acceptance of travel indicator measuring device are detailed in Table 4.4.7-5.
Table 4.4.7-5 Installation of travel indicator measuring device
4.4.8 Installation of material weighing sensor.
1 Installation inspection and acceptance of electronic belt weigher are detailed in Table 4.4.8-1.
Table 4.4.8-1 Installation of electronic belt weigher
2 Installation inspection and acceptance of weigh bridge are detailed in Table 4.4.8-2.
Table 4.4.8-2 Installation of weigh bridge
4.4.9 Installation of monitoring and sensing element.
1 Installation inspection and acceptance of furnace flame camera are detailed in Table 4.4.9-1.
Table 4.4.9-1 Installation of furnace flame camera
2 Installation inspection and acceptance of water level camera are detailed in Table 4.4.9-2.
Table 4.4.9-2 Installation of water level camera
3 Installation inspection and acceptance of flame detection and monitoring probe are detailed in Table 4.4.9-3.
Table 4.4.9-3 Installation of flame detection and monitoring probe
Table 4.4.9-3（Continued）
4 Installation inspection and acceptance of camera are detailed in Table 4.4.9-4.
Table 4.4.9-4 Installation of camera
