Tube Resistance Thermometer TP 21 Hengesbach

 The Tube Resistance Thermometers Type TP21 meet, by their design layouts, the requirements for a deadspace-free and hygienic measurement in all kinds of fluid media, like e.g. milk, beer, juice etc. The measurement occurs without a profile modification and without contacting the media by the sensing resistor, taking into account the good response times. Therefore e.g. cleaning procedures by a pig etc. are possible.

The device consists of a pipe body with neck tube in stainless steel. Integrated in the pipe body is a PT100-thermometer. Optionally the measuring insert contains one or two measuring resistors PT100, connected via the terminal block of the housing head in 2-, 3- or 4-wire circuit. The temperature sensors are to be integrated in the pipeline. Different connection versions for varying applications are available.

Features:

• deadspace-free temperature measurement
• no contacting with media
• for food and pharmaceutical industries
• entirely in stainless steel
• corrosion resistance by field housing
• custom-designed process connections
• optional with transmitter
  

Specification:

Constructive Layout
Housing	field housing
Temperature sensor	PT 100 acc. EN 60751, changeable measurement insert (Standard),
	insert tube 1.4571
Measurement insert, electrical	1 x PT 100 in 2-, 3- or 4- wire connection, standard: 1 x 3- wire connection,
	2 x PT 100 in 2- or 3-wire connection
Electrical connection	- M16 x 1,5 – cable gland, MS nickel-plated,
	- optional: M12 x 1 circular connector, 4-pins
Accuracy	- standard: tolerance class A acc. to EN 60751,
	- optional:	tolerance class B 1/10, 1/5, 1/3, 1/2 DIN
Response time	T50 (measured in water): 6 sec. (dependent on design, d = 6 mm)
	< 4 sec. with tapered sensor tip on request
Measured medium temperature	Tmax at sensor =	-20... +200°C
Housing material	stainless steel 1.4301 (CrNiSt, standard-field housing)
Measuring section - material	stainless steel 1.4571, optional 1.4435 or 1.4404,
	optional: tube in polished steel
Protection class	EN 60529,	IP 67 with cable gland, optional with cable connection
Pressure admissible	PN = 10 bar
CE-conformity	EMC-rules are fulfilled, CE-sign
Process Connection
	- TP21 / TW 59...T108
		milk pipe screw joint with threaded double-sided neck, DIN 11851, DN20...DN100,
	- TP21 / TW 59...T141
		Tri-Clamp-connection acc. to ISO 2852
	- other connections on request (please specify nominal width)
	- neck tube:	38,5 mm x d = 16 mm (acc. to drawing)
	- measuring section length:
		120 mm (acc. to drawing)
Accessories
Assembly components	None
Options
Electrical connection	ceramic connection socket
	flexible connecting wires
	sheathed cable	(shakeproof type)
	transmitter TE 42, programmable, 4...20 mA, 2- wire connection (standard)
	transmitter TE 41, programmable, galvanically isolated
	transmitter TE 52, HART
	transmitter TE 82, Profibus PA
Calibration	factory calibrated, calibration certificate (3-point or 5-point), with DKD-standard
Certificates	material certificate, acc. to EN 10204

Ref: Hengesbach.com

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