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 Matched RTD pairs for heat meters KTS-B

 

Description

Matched RTD pairs KTS-B (hereinafter KTS-B) are designed for measuring the temperature difference between the upstream and downstream pipelines of the heating systems and as well as measuring the temperature in each pipeline.


Matched pairs KTS-B are selected from RTDs (hereinafter referred to as TS-B), manufactured according to TU RB 390184271.001-2003, with a working temperature range from 0 °C to +180 °C.

 

Main technical characteristics of KTS-B
-Range of measured temperature from 0 °C to 160 °C.
-Range of measured temperature difference Δt from Δtmin to 150 °C,
  where Δtmin=1 °C ; 2 °C ; 3 °C – minimum temperature difference.

-Nominal Static Characteristics of conversion (hereinafter NSC) are presented in table 1.
-Tolerance classes (according to GOST 6651) are shown in table 2.

 

Table 1. Nominal Static Characteristics of conversion
NSC R0, Ohm  Recommended measuring current, mA α, °C-1
Pt100 100 0,3-1,0 0,00385  
Pt500 500 0,1-0,7
Pt1000 1000 0,1-0,3
50P (JIS) 50 1,0 0,00391
100P (JIS) 100
500P (JIS) 500 0,2
R0 – nominal resistance value at 0°C;
α – temperature coefficient of RTD.
Table 2. Tolerance class  
 Tolerance class according to GOST 6651 Permissible resistance deviation at 0°C from R0, %  Limits of resistance
deviations from NSC, °C
AA 0,04 ±(0,1 + 0,0017 *|t|)
A 0,06 ±(0,15 + 0,002 *|t|)
B 0,12 ±(0,3 + 0,005*|t|)

 

Operating conditions of KTS-B
-KTS-B are resistant to the influence of ambient air temperature from -50 to +50 °C, to the influence of humidity of the ambient air of 95% at 35 °C or lower (group D3 GOST 12997).
-KTS-B are resistant to sinusoidal vibration in the frequency range from 10 to 55 Hz, with an amplitude of displacement of 0,35 mm, group N2 GOST 12997.
-KTS-B are manufactured with IP65 protection (dustproof; protection from water jets from any direction). In agreement with the customer, it is possible to manufacture KTS-B with a protection level IP68 (dustproof; full waterproof), suitable for operation in flood conditions. 

 

ORDERING CODE FOR KTS-B

 1 -  2 - 3 - 4 - 5 - 6 - 7 / 8 - 9 . 10 . 11 - 12 - 13
KTS-B  -  Pt100  -  A  -  x4  -  P  -  2 -  60  /  6  -  NSH   .  50  .  M20x1,5  -  E -  1000 

1-Model

KTS-B

2-NSC

50P(JIS)
Pt100, 100P(JIS)
Pt500, 500P(JIS)
Pt1000

3-Tolerance class according to GOST 6651
 

AA, A, B

4-Lead wire quantity*

x2, x3, x4, 2x2, 2x3

Internal wiring diagrams of sensing element in TS-B and their ordering codes

x2
2-wire
connection

x3

3-wire
connection 

x4

4-wire
connection

2x2

two sensing elements
with 2-wire connection each

2x3

two sensing elements
with 3-wire connection each

KTS-B with lead wire configuration 2x3 is manufactured  only with connection head type "D"

 

5-Probe type*

P

Probe type  Ordering code Drawing Diameter d
(thread M), mm 
Immersion(insertion) length Lm, mm
Immersible P   4, 5

35; 40; 50; 60; 80; 100; 120
      6
8
10
50; 60; 80; 100; 120; 160; 200; 250; 320; 400; 500
6-Minimum difference of measured temperatures ∆tmin, °C

2; 3
7-Insertion (probe) length, mm*

35;  40;  50; 60;  80; 100;  120;  160;  200; 250; 320; 400; 500

8-Probe diameter, mm*
  

4;5; 6; 8; 10

9-Mounting style*

PSH; NSH

Mounting style

Ordering code Drawing Thread size mm D,mm
Sliding threaded connection PSH  
 
- 4;5;6;8;10
M8x1
 
4;5
M12x1,5 ;G1/4 4;5;6
M16x1,5; G3/8

4;5;6;8;10
M20x1,5; G1/2 5;6;8;10;12
Fixed threaded connection NSH M8x1 4;5
M12x1,5 ;G1/4

4;5;6
M16x1,5; G3/8

4;5;6;8;10
M20x1,5; G1/2

5;6;8;10;12
10-Extension length, mm*

50; 60; 80; 120; 200

11-Process connection thread*

M8x1; M12x1,5; M16x1,5; M20x1,5; G1/4; G3/8; G1/2
12-Connection head type* table 7

B; D; E; J; A; L

Table 7. Connection head types   
 Ordering code Drawing and description    
B(with extension cable)

Without connection head, with extension cable

Protection level

IP00; IP44;

IP65; IP68

D





Protection level   IP65; IP68
Cover fixing   snap lock lever
/screw
Diameter in default cable gland LG
(by default)
  (7÷13) mm
Material aluminum alloy
E ("big") Protection level    IP65
Cover
 fixing
thread
Cable diameter  (by default) (7÷13) mm
Material    plastic
J ("small") Protection level    IP65
Cover fixing thread
Cable diameter  (by default) (7÷13) mm
Material plastic
A with wires    Protection level IP00
Application in hazardous locations none
 L  Connector      Protection level IP65
 Cable diameter  (4,5÷6) mm
 Connector type     DIN 43650 form C
 Material  plastic

The most common and preferred connection heads are  B, E and J. At the request of the customer, it is possible to manufacture a KTS-B with connection head L (connector).

* Attention!
In agreement with the customer, it is possible to manufacture KTS-B (with connection head E or J) with a protection level IP68, suitable for operation in flood conditions.

13- Cable length, mm

500; 1000; 1500; 2000; 2500; 3000; 5000


Remarks
1    The asteriks sign (*) means that the design and values of the parameters correspond to TU RB 390184271.001-2003.
2    Per customer request, it is possible to manufacture KTS-B with insertion length, probe diameter, extension length, mounting style and with cable length different from the shown above.
3    In the absence of process connection (plug-in type), ordering codes  9, 10 and 11 shouldn't be indicated.
4    Ordering code 13 is not indicated, if extension cable is not required.

Design types of KTS-B
 

1.    KTS-B with extension cable B instead of connection head (without thermowells and olets)

 Sample of ordering code:

KTS-B Pt100 -B -x4 -P -3 -40 /6 -B -1500
   NSC

Tolerance

class:

B

Wiring configuration:

4-wire(x4)

(clause 4)

Probe

design

type:

immersible

Minimum

temperature

difference

Δtmin: 3 °C

 Insertion

(probe)

length,

Lm: 40 mm

 Probe

diameter

D: 6mm

 Connection head:

B

(see table 7)

 Cable

length

Lk: 1500 mm*

 

When creating an ordering code, parameters 1,2,3 and 4 are selected according to the table:

Possible design types of KTS-B with extension cable B instead of connection head (without thermowell and olets)

1 NSC Pt100; Pt500; Pt1000; 50P(JIS); 100P(JIS); 500P(JIS)
2 Tolerance class A; B
3 Minimal temperature difference Δtmin, °C 2; 3
4 Insertion (probe) length Lm, mm 27,5; 35; 40; 45; 50; 60; 80; 100; 120; 140; 160

*Cable length Lk = 1500 mm – by default;  As agreed with the customer, any length starting from 1000 mm, multiple of 50 mm.

2.    KTS-B with extension cable B instead of connection head (with thermowell and olet)
 

KTS-B -Pt100 -B -x4 -P -3 -100 /6 -105P -B -1500
  NSC

Tolerance

class: B

Wiring configuration:

4-wire

(x4) (clause 4)

Probe

design

type:

immersible

Minimum

temperature

difference

Δtmin: 3 °C

Insertion

(probe)

length, Lm:

100 mm

Probe

diameter,

D:6mm

Thermowell

type

Connection head:

B (see table 7)

Cable length

Lk:1500 mm*

 
When creating an ordering code, parameters 1,2,3,4 and 5 are selected according to the table

Possible design types of KTS-B with extension cable B instead of connection head (with thermowells and olets)

1 NSC Pt100; Pt500; Pt1000; 50P(JIS); 100P(JIS); 500P(JIS)
2 Tolerance class A; B
3 Minimum temperature difference Δtmin, °C 2; 3
4 Insertion (probe) length Lm, mm 45    50    60    80    100    120    140    160
5 Thermowell type 105P    106P
   Olets 1/28-32-M20x1,5

*Cable length Lk=1500 mm – by default; as agreed with the customer, any length starting from 1000 mm, multiple of 50 mm.
 
3.    Matched RTD Pair KTS-B with extension cable B instead of connection head for direct installation into ball valve (or tee)

Matched RTD pairs with cable are used for installation in pipes with small diameters, in order to allow direct installation into ball valves or tees.
Matched RTD pairs of this modification can be supplied either alone or with ball valves, adapters (sleeve G1/2 or G3/4 etc.) and tees (see table 3.24).

Modification for installation in ball valve:

    
Matched RTD pairs KTS-B with cable can be supplied either alone for Dn15-Dn32 or with ball valves Dn15, 1.6 MPa.

Attention!
For ball valves of a different brand, you should provide a sample to Point LLC for design adaptation of KTS-B to the ball valve.

Modification for installation in tee:
 


Sample of ordering code:

KTS-B -Pt100 -A -x4 -P -3 -25 /6 -(15 /3) -PSHl. 30. M10x1 -B -1500 -KSH.G1/2
NSC

Tolerance

class: A

Wiring

confi-

guration: 4-wire

(x4)

Probe type: immersible Minimum measurable temperature difference Δtmin: 3 °C Insertion (probe) length Lm:25 mm Probe diameter:6 mm Length of stepped part L1: 15mm Diameter of stepped part d: 3mm

Mounting

style: PSHl***

Extension length Lo: 30 mm

Process

connection thread: M10x1

Connection head type: B Cable length Lk: 1500 mm* Installation method

 

When creating an ordering code, parameters 1,2,3,4 and 5 are selected according to the table.

Possible design modifications of KTS-B with cable B(as a connection head) for installation directly in ball valve or tee

1 NSC Pt100, Pt 500
2 Tolerance class A, B
3 Minimum teperature difference Δtmin, °C  2, 3
4 Installation method  With ball valve Without ball valve
(For Цветлит
valves)
With adapter With tee
KSH.G1/2; KSH.G3/4 Dn15, Dn20 G1/2, G3/4 TR.G1/2,
TR.G3/4

 

*Cable length Lk = 1500 mm – by default; As agreed with the customer, any length starting from 1000 mm, multiple of 50 mm.

** For direct installation in a ball valve, warranty  obligations on the matched RTD pairs  are only applied  when used with ball valves manufactured by УП "Цветлит".
***Mounting style is "PSHl" - sliding threaded brass connection.
It is possible to manufacture similar matched RTD pairs KTS-B for installation in pipelines with Dn25, Dn32 into the valve supplied by the customer.

Technical documentation
Ordering code

 

ORDERING CODE FOR KTS-B

 1 -  2 - 3 - 4 - 5 - 6 - 7 / 8 - 9 . 10 . 11 - 12 - 13
KTS-B  -  Pt100  -  A  -  x4  -  P  -  2 -  60  /  6  -  NSH   .  50  .  M20x1,5  -  E -  1000 

1-Model

KTS-B

2-NSC

50P(JIS)
Pt100, 100P(JIS)
Pt500, 500P(JIS)
Pt1000

3-Tolerance class according to GOST 6651
 

AA, A, B

4-Lead wire quantity*

x2, x3, x4, 2x2, 2x3

Internal wiring diagrams of sensing element in TS-B and their ordering codes

x2
2-wire
connection

x3

3-wire
connection 

x4

4-wire
connection

2x2

two sensing elements
with 2-wire connection each

2x3

two sensing elements
with 3-wire connection each

KTS-B with lead wire configuration 2x3 is manufactured  only with connection head type "D"

 

5-Probe type*

P

Probe type  Ordering code Drawing Diameter d
(thread M), mm 
Immersion(insertion) length Lm, mm
Immersible P   4, 5

35; 40; 50; 60; 80; 100; 120
      6
8
10
50; 60; 80; 100; 120; 160; 200; 250; 320; 400; 500
6-Minimum difference of measured temperatures ∆tmin, °C

2; 3
7-Insertion (probe) length, mm*

35;  40;  50; 60;  80; 100;  120;  160;  200; 250; 320; 400; 500

8-Probe diameter, mm*
  

4;5; 6; 8; 10

9-Mounting style*

PSH; NSH

Mounting style

Ordering code Drawing Thread size mm D,mm
Sliding threaded connection PSH  
 
- 4;5;6;8;10
M8x1
 
4;5
M12x1,5 ;G1/4 4;5;6
M16x1,5; G3/8

4;5;6;8;10
M20x1,5; G1/2 5;6;8;10;12
Fixed threaded connection NSH M8x1 4;5
M12x1,5 ;G1/4

4;5;6
M16x1,5; G3/8

4;5;6;8;10
M20x1,5; G1/2

5;6;8;10;12
10-Extension length, mm*

50; 60; 80; 120; 200

11-Process connection thread*

M8x1; M12x1,5; M16x1,5; M20x1,5; G1/4; G3/8; G1/2
12-Connection head type* table 7

B; D; E; J; A; L

Table 7. Connection head types   
 Ordering code Drawing and description    
B(with extension cable)

Without connection head, with extension cable

Protection level

IP00; IP44;

IP65; IP68

D





Protection level   IP65; IP68
Cover fixing   snap lock lever
/screw
Diameter in default cable gland LG
(by default)
  (7÷13) mm
Material aluminum alloy
E ("big") Protection level    IP65
Cover
 fixing
thread
Cable diameter  (by default) (7÷13) mm
Material    plastic
J ("small") Protection level    IP65
Cover fixing thread
Cable diameter  (by default) (7÷13) mm
Material plastic
A with wires    Protection level IP00
Application in hazardous locations none
 L  Connector      Protection level IP65
 Cable diameter  (4,5÷6) mm
 Connector type     DIN 43650 form C
 Material  plastic

The most common and preferred connection heads are  B, E and J. At the request of the customer, it is possible to manufacture a KTS-B with connection head L (connector).

* Attention!
In agreement with the customer, it is possible to manufacture KTS-B (with connection head E or J) with a protection level IP68, suitable for operation in flood conditions.

13- Cable length, mm

500; 1000; 1500; 2000; 2500; 3000; 5000


Remarks
1    The asteriks sign (*) means that the design and values of the parameters correspond to TU RB 390184271.001-2003.
2    Per customer request, it is possible to manufacture KTS-B with insertion length, probe diameter, extension length, mounting style and with cable length different from the shown above.
3    In the absence of process connection (plug-in type), ordering codes  9, 10 and 11 shouldn't be indicated.
4    Ordering code 13 is not indicated, if extension cable is not required.

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