Pt500 temperature sensor pairs Siemens

Область применения

The temperature sensor set is designed for use with the Siemens energy calculator type SITRANS FUE950 for measurement of the energy consumption in a district heating or cooling net.

Temperature sensors are one of the integral components of every thermal energy meter in heating or cooling applications. They are used for determining temperature changes in fluids due to energy taken from or supplied to the loop. The temperature is thus measured by mounting temperature sensors upstream and downstream from the point where the exchange in the thermal energy of the system is.

To ensure an accurate measurement of the temperature difference according to MID (EN 1434) or PTB K7.2 the sensors are delivered as matched pairs.

By selection with the corresponding order code the Pt500 sensor pair sets can be delivered with heating approval or with approvals for combined heating/cooling applications.

Чертеж

Pt500 temperature sensor pair (EN 1434)
Cable length	2, 3, 5 or 10 m (’C’ at the dimensional drawing)

Pt 500 2-wire temperature sensor, dimensions in mm (inch)

Pt500 4-wire temperature sensor pair (with MID and PTB K7.2 approval)

Pt500 4-wire temperature sensor, dimensions in mm (inch)

Stainless steel sensor pocket (for 2-wire Pt500 types only)
Length	L1 (mm)	92	127	168	223
Length	L (mm)	82	117	155	210

Sensor pocket (for 2-wire Pt500 types only), stainless steel, dimensions in mm (inch)

Stainless steel sensor pocket (for 4-wire Pt500 types only)

Stainless steel sensor pocket, dimensions in mm (inch)

Brass sensor pocket for 2-wire Pt500 types only)
Length	L1 (mm)	47	92	127
Length	L (mm)	40	82	117

Sensor pocket, brass (for 2-wire Pt500 types only), dimensions in mm (inch)

Технические данные

Temperature sensor pairs

2-wire Pt500

Pt500 2-wire temperature sensor pair (EN 1434)
Measuring insert	Pt500 temperature sensor, EN 60751, tolerance class B, 2-wire
Pairing	Paired to EN 1434 (10 … 130 °C/14 … 266 °F)
Media temperature	0 … 150 °C (32 … 302 °F)
Response time T_0.5	See sensor pocket specifications
Medium	Typically heating water
Pressure rating	See sensor pocket specifications
Protection	IP65
Pipe material	AISI 304 Ti/1.4303
Dimension	∅ 6 mm
Sensor tube length	50 m
Cable length	Up to 10 m (32.8 ft), fixed connected silicon cable, 2 connection wire terminals, terminal sleeves to DIN 46228

4-wire Pt500

Pt500 4-wire temperature sensor pair (with MID and PTB K7.2 approval)
Measuring insert	Pt500 temperature sensor, EN 60751, tolerance class to ISO 751 Class B; 4-wire
Pairing	Matched paired according to EN 1434 at 10, 75 and 140 °C (50, 167 and 284 °F)
Type approval	MID (DE-06-MI004-PTB011) and PTB K7.2 (PTB 22.77/09.01). Only to be mounted with related sensor pockets according to the type approvals.
Media temperature	0...150 °C (32 ... 302 °F)
Permissible temp. pair range for ΔT
Heating	3 … 150 K
Cooling	3 … 85 K
Medium	Approved for heating/cooling water
Protection	IP65
Environment
Meachnic class	M3
Electromagnetic class	E1 (MID)
Pressure rating	See sensor pocket specifications
Material
Protective tube	Stainless steel AISI 304Ti/1.4571 (or similar), diameter of protective tube: 6 mm
Connector cable	Silicon cable, 4 connection wire terminals, terminal sleeves to DIN 46228
Sensor tube length	140 or 230 mm (5.51 or 9.06 inch)
Cable length	5 m (16.4 ft), fixed connected

Sensor pockets

Stainless steel sensor pocket (for 4-wire Pt500 types only - standard)
Media temperature	0 ... 150 °C (32 ... 302 ºF)
Approval	Approved only together with 4-wire sensors
Medium	Approved for heating/cooling water; up to max. 5 m/s flow velocity
Pressure rating	PN 40
Length	Face-to-face length 120/135 and 210/225 mm (4.72"/5.23" and 8.27"/8.86")
External diameter	Protective tube 8/11 mm (0.32"/0.43")
Internal diameter	Protective tube 6 mm (0.24")
Pipe connection	Thread G 1/2" (with sealing screw for sensor)
Material	Protective tube AISI 316Ti/1.4571 (or similar)
Use	Use with related 4-wire Pt500 sensors only (according type approval) For flow velocities up to 5 m/s Recommended to install with welded sleeve (according to EU standard)

Stainless steel sensor pocket (for 2-wire Pt500 types only, some only available as spare parts)
Media temperature	0 ... 180 °C (32 ... 356 ºF)
Medium	Approved for heating water
Response time T_0.5	Typically 13 s at 0.4 m/s without pasta
	Typically 5 s at 0.4 m/s with pasta
Pressure rating	PN 25
Length	L1 (mm)	92	127	168	223
	L (mm)	82	117	155	210
Material	Stainless steel: AISI 316Ti/1.4571
Use	For 2-wire Pt500 types only

Brass sensor pocket (for 2-wire Pt500 types only, some only available as spare part)
Media temperature	0 ... 150 °C (32 ... 302 ºF)
Medium	Approved for heating water
Response time T_0.5	Typically 9 s at 0.4 m/s without pasta
	Typically 5 s at 0.4 m/s with pasta
Pressure rating	PN 16
Length	L1 (mm)	47	92	127
	L (mm)	40	82	117
Material	Brass: CuZn₄₀Pb₂ (Ms58)
Use	For 2-wire Pt500 types only