Разработка и производство контрольно-измерительных приборов

+375(214)41-30-08
e-mail: polotsk_point@mail.ru

News

Калибровка средств измерений
13.07.18

ООО "Поинт" оказывает услуги по калибровке измерителей температуры и влажности собственного производства ПИ-002, а также средств измерений других

...
Яндекс.Метрика

Digital thermometers TC-B

Description

Digital thermometers TC-B (hereinafter TC-B), are designed to measure the temperature of gaseous, bulk, solid and liquid substances in various industries and to transmit information over the protocol 1-Wire of company Maxim Integrated.

 

The thermometers are manufactured with three different sensing elements:
1.    TC-B-DS1820  – thermometers with sensing element DS1820  
2.    TC-B-DS18B20 - thermometers with sensing element DS18B20
3.    TC-B-DS1821  - thermometer with sensing element DS1821

 

Main technical characteristics

Characteristics of TC-B
Measurement range:    from -55 °C to + 125°C, ( ambient air from -55 °C to + 85°C)
Absolute measurement error in the whole measuring range, not more than: ±2 °C.
Supply voltage: (3÷5 ±0.4) V DC.

 

Operating conditions of TC-B
TC-B are resistant to the influence of ambient air temperature from -55 °C to +85 °C, to relative humidity of ambient air 95% at +30°C and at lower temperatures (group C2 GOST 12997). TC-B is not intended for long-term operation when exposed to ambient air humidity of 100%.
TC-B are resistant to sinusoidal vibration in the frequency range from 10 Hz to 55 Hz, with a displacement amplitude of 0.35 mm (group N2 GOST 12997).

 

The design of TC-B is primarily determined by the model The main models are shown in table 4. The model is determined by:

•    probe type  (see table 1);
•    mounting style  (see table 2);
•    type of connection head (see table 3);

As agreed with the customer, it is possible to produce TC-B, the design of which differ from those in the section "Design types".

 

ORDERING CODE FOR TC-B

1 - 2 - 3 - 4 - 5 - 6 / 10 - 8 / 9 - 10 . 11 / 6 . 13 - 14 - 15 - 16 - 17
 TC-B - DS1820 - - R - (from -50 to +125) - 100 / 10 - 60 / 8 - PSH . 50 / 12 . M20x1,5 - E - IP65 - 01 - 02

2-Type of sensing element

DS1820    DS18B20    DS1821

3-Probe type table 1
Probe type

Ordering

code

 Drawing  Probe diameter D (d), mm Insertion (probe)  type Lm (L1), mm
min max

 Immersible  

 P    straight   6;8;10 50 3150

4-Presence of pull-up resistor

Ordering code R is indicated in the absence of pull-up resistor

5-Measurement range,°C

Measurement range,°C     -55 to 125
6-Insertion (probe) length Lm table 4
    
Insertion (probe) length Lm (table 4), mm    30, 35, 40,  50, 60, 80, 100, 120, 160, 200, 250, 320, 400, 500, 630, 800, 1000, 1250, 1600, 2000, 2500, 3150

TC-B with connection head I

Design types

To measure the temperature of the ambient air, with connection head suitable for mounting on a horizontal or vertical surface.   

Lm, mm 80; 100    
D, mm 6; 8    

In agreement with the customer, it is possible to manufacture TC-B with dimensions different from above.

Sample of ordering code for TC-B with connection head I:

 «Digital thermometer TC-B-DS1820-P-(from -55 to +85)-90/6-I-01-02»,
which means, digitale thermometer of modification TC-B-DS1820, with immersible probe type P, with measuring range from -55 to +85 °C, with insertion (probe) length Lm=90 mm, with probe diameter D=6 mm, with no process connection, with plastic connection head I, with installed pull-up resistor, the label with a unique chip number is absent.

TC-B with connection head E

Without process connection
straight probe 

Mounting style NSH
straight probe 

Lm, mm 60, 80, 100, 120, 160, 200, 250, 320, 400, 500, 630, 800, 1000, 1250, 1600, 2000, 2500, 3150
D, mm 6 (Lm not more than 320 mm); 8 (Lm not more than 1000 mm); 10
   
Lo, mm 50; 120
M, mm M12x1,5; G1/4; M16x1,5; G3/8; M20x1,5**; G1/2; M24x1,5

Mounting style PSH
straight probe    

 

 

Lm, mm 50, 60, 80, 100, 120, 160, 200, 250, 320, 400, 500, 630, 800, 1000, 1250, 1600, 2000, 2500, 3150
D, mm 6 (Lm not more than 320 mm); 8 (Lm not more than 1000 mm); 10    d, mm
Lo, mm 50; 120
M, mm M12x1,5; G1/4; M16x1,5; G3/8; M20x1,5**; G1/2; M24x1,5

Mounting style PG
straight probe   

Lm, mm 60, 80, 100, 120, 160, 200, 250, 320, 400, 500, 630, 800, 1000, 1250, 1600, 2000, 2500, 3150
D, mm 6 (Lm not more than 320 mm); 8 (Lm not more than 1000 mm); 10
Lo, mm 50; 120
M, mm  M20x1,5; thread selected by customer* 
*threads in accordance with table 2, clause 10; or any thread after additional agreement.

As agreed with the customer, it is possible to manufacture TC-B  with dimensions and wiring configuration which differ from shown above.
Sample of ordering code for TC-B with connection head E:

Without process connection straight probe
«Digital thermometer TC-B-DS18B20-P-(from -55 to +125)-120/8-E-01-01»,
which means, digital thermometer of modification TC-B-DS18B20, with immersible probe type P, with measuring range from -55 to +85 °C, with insertion (probe) length Lm=120 mm, with probe diameter D=8 mm, without process connection, with plastic connection head E, with installed pull-up resistor, the label with a unique chip number is present.

7-Probe diameter D

 Probe diameter D see table 4, clause 6, mm     6; 8; 10

8-Length of stepped part L1

 Length of stepped part L1 see table 4, clause 6, mm    10, 60 (not indicated if absent)

9-Diameter of stepped part d

Diameter of stepped part d see table 4, clause 6, mm    6; 8 (not indicated if absent)

10-Mounting style table 2

PSH, NSH, PG, NG, SH,  (not indicated if absent) table 2

 Preffered and most common mounting styles of thermometers are "Without process connection" and "PSH - sliding threaded connection" with thread M20x1,5.   

Ordering
code

 Drawing, description Mounting style, M D, mm
 1  2  3 4
 

Without process connection
See types on table 4 clause 6

Main types

 - see table 4 clause 6
PSH   

Sliding threaded connection   

M12x1,5; G1/4” 4; 5; 6
M16x1,5; G3/8” 4; 5; 6; 8; 10
M20x1,5; G1/2” 5;6; 8; 10
M24x1,5 6; 8; 10
NSH    

Fixed threaded connection    

M12x1,5; G1/4” 6
M16x1,5; G3/8” 6; 8; 10
M20x1,5; G1/2” 6; 8; 10
 M24x1,5 6; 8; 10
M27x2; G3/4” 8; 10
PG  

Sliding nut  

M12x1,5; G1/4” 6;
M16x1,5; G3/8” 6;
M20x1,5; G1/2” 6; 8; 10
SH

Welded thrust washer

10; 12; 14; 16; 18; 6; 8; 10
NG

Fixed nut

M12x1,5; G1/4 4; 5; 6
M16x1,5; G3/8 4; 5; 6; 8; 10
M20x1,5; G1/2 5; 6; 8; 10

Remark - The size of the hexagon S is determined by the manufacturer. Insertion (probe) length Lm is determined by the customer.

11-Extension length Lo

Extension length Lo(see table 4 clause 6), mm    50, 120, 200 (not indicated if absent)

12-Extension diameter Do

12    Extension diameter Do (see table 4 clause 6), mm    8, 10 (indicated if extension diameter Do is bigger than probe diameter D).

13-Mounting style

Mounting style (see table 2,4 clause 6,10)    M12x1,5; M14x1,5; M16x1,5; M18x1,5; M20x1,5; M24x1,5; M27x2; G1/8; G1/4; G3/8; G1/2; G3/4; G1 (not indicated if absent)

14-Type of connection head table 3
 
Type of connection head (table 3)

Ordering code  Drawing and description    
 E

 

"Big" plastic connection head

Protection level IP65
Without safety protection
Cover
 fixing
thread
Cable diameter  (by default) (7÷13) mm
Material plastic
I

"Straight" plastic connection head for mounting on flat surface. Usually, it is used for TC-B intended for measuring ambient air temperature, with wall mounting.

Protection level  IP65
Without safety protection
Cover
fixing
thread
Cable diameter  (by default) (7÷13) mm
Material plastic


Suitable for mounting on a flat surface

15-Protection level IP

15    Protection level IP (see table 3 clause 14)    IP65 (it's allowed not to specify)
16-Presence of pull-up resistor
 Type of sensing element  DS1820 DS18B20 DS1821
Pull-up resistor  01 - Present(installed)
02 - Absent
01 - Present(installed)
02 - Absent
01 - Present(installed)
02 - Absent
17-Label with a unique chip number
 Type of sensing element  DS1820 DS18B20 DS1821

Label with

a unique

chip number

01 - Present
02 - Present
01 - Present
02 - Absent
 -

 

Attention!
1    *When creating an ordering code, you should follow the section "Ordering code for TC-B" and the examples given in table 4, clause 6.
2    In agreement with the customer, it is possible to manufacture digital thermometers with the insertion (probe) length, probe diameter, extension length/diameter, the dimensions of stepped part, the connection thread size, the length of extension cable or wires and with the wiring configuration other than the above series.

Wiring configuration
The pull-up resistor R=4.7 kOhm ± 10 % is installed at the request of the customer.
The terminal numbers (1-4) are shown inside the connection head.
As agreed by the customer, it is possible to manufacture with a wiring configuration different from the one shown.

Picture 1 – Wiring diagram

Joomla Plugins