300

Description
Technical characteristics

300

These sensors are designed for temperature measurement of nonaggressive liquid and gaseous media, that do not destruct thermowell material. It is also possible to measure solid body temperature. Sensors can be of explosion protection type 0ExiaIICT6 X. Further details see in "Alternative designs" below.
Movable fitting UNKJ 031 (see "UNKJ units and components" section) is recommended for sensor installation.

If required, thermocouples with 4-20 mА DC signal and/or digital signal via HART, PROFIBUS-PA, FOUNDATION Fieldbus protocol, can be equipped with remote measuring transmitters.

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Technical characteristics

Connection diagram	2-wire	tolerance class В, С (see item 9 at page 6-5)
	3-wire	tolerance class АА, А, В, С
	4-wire
Vibration resistance GOST R 52931	group V3
Seismic resistance MSK-64	*grade 9* for unit installation up to 70 m above zero mark
Climatic version GOST 15150	*UHL2*Ambient temperature:	-60..+120ºС for general purpose products
		-60..+85ºС for Ex version with analogous signal
Calibration	- GOST 8. 461-2009
Response time	Sensor response time depending on diameter, s
	d = 4	d = 5	d = 6
	8	12	16

Reliability indicators

Group of operating conditions	Probability of failure-free operation	Specified lifetime	Mean lifetime	Guarantee conditions
I	0.95 for 40 000 hours	5 years	10 years	5 years
II	0.95 for 16 000 hours	2 years	4 years (6 years)*	2 years

* - Increased mean lifetime with 0,6 failure-free operation possibility for the given period.

Temperature range

TC type	Group of operating conditions	Tolerance class	Application temperature, °С	Cal. int.	Mean lifetime
CRTD	II	А	– 50…+120	2 years	4 years
CRTD	II	B, C	– 50…+150	2 years	4 years
PRTD	I	A, B, С	– 50…+150	5 years	10 years
PRTD	II	АА	– 50…+150	2 years	4 years

Execution options

*PRTD*		*Exi*	*300*	—	0	60	—	*Pt100*	—	В	3	—	*S10*	—	8	—	L	/	l
1		2	3		4	5		6		7	8		9		10		11		12		13

NN	Name	Code	Description
1	Sensor type	*CRTD*	Copper resistance temperature detector
		*PRTD*	Platinum resistance temperature detector
2	Explosion protection	*Not filled*	general purpose electrical equipment
		*Exi*	0ExiaIICT6 X, intrinsically safe circuit
3	Modification	*300*	see draft
4	Terminal head	0	Free electrode ends 50mm	IP65	0ExiaIICT6Х or general purpose
		2	miniature plug	IP40	general purpose
		4	standard plug	IP40	general purpose
5	Sensor terminal head (see "Alternative designs" page 1-15)	50	Stranded conductor, silicon / shield / silicon insulation - shield is insulated from sensor body and does not have a terminal
		60	Stranded conductor, PTFE / shield / PTFE insulation - shield is insulated from sensor body and does not have a terminal
6	Type of TC	*50М, 100М, 50P, 100P, Pt100, Pt500*	NSC according to GOST 6651-2009
7	Tolerance class	*АА, А, В, С*	Tolerance class according to GOST 6651-2009
8	Connection diagram	*3, 4*	3- and 4-wire connection diagram for class АА, А
		*2, 3, 4*	2-, 3-, 4-wire connection diagram for class В, С
9	Sheath material	*S10*	steel 12Cr18Ni10T
10	Outer diameter, mm	4	for 60 modification wire
		*5 or 6*	for 50 modification wire
11	Probe length, L, mm	*60÷160*
12	Extension wire length ℓ	*100÷30,000*	specify dimensions in mm 500, 1000, 2000 3150 and more
13	Additional parameter	*Not filled*	Should be filled if required

Examples of product designation

*PRTD 300-060-Pt100-B3-S10-4-100/5000*
Product type	*PRTD*	Platinum resistance temperature detector
Explosion protection	―	general purpose
Modification	*300*
Terminal head	0	Free electrode ends
Wire code	60	PTFE sheath, IP65
Type of TC	*Pt100*
tolerance class and connection diagram	В3	Class B, diagram 3-wire
Output signal (accuracy class)		analogous according to NSC
Sheath material	*S10*	steel 12Cr18Ni10T
Working end diameter	4	mm
Probe length L	*100*	mm
Wire length ℓ	*5000*	mm