Magnetic induction tachometers ТМ

Manufacturer: PAO SARANSK INSTRUMENT WORKS
or send an application for spz@saranskpribor.ru
Documents

Техническое описание

Сертификат об утверждении типа СИ

Руководство по эксплуатации

Tachometers are designed to continuously measure the rotation speed of machine and mechanism parts.

Tachometers are connected via a spring-load coupling when rigidly attached to the object or via a flexible shaft when attached to the object by means of shock absorbers. 


General specifications

Allowable basic error of the tachometer, %, maximum:

  • within the operating measuring range ±1;
  • in the remaining part of the scale (for tachometers with right/left zero – from the upper range limit; for tachometers with center-zero scale – from the sum of upper range limits) ±1.5.

Method of tachometer attachment to measurement object:

  • using a spring-loaded coupling with a shank bore diameter – 25 or 40 mm;
  • using a flexible shaft.

Direction of tachometer drive shaft rotation:

  • for tachometers with right/left zero – left- or right-handed (the left-handed rotation of the tachometer drive shaft means counterclockwise rotation, the right-handed rotation – clockwise rotation when viewing the tachometer from the drive shaft side);
  • for tachometers with center-zero scale – two-way.

Tachometer climatic versions:

  • У3 – for operation at a temperature from minus 60 to plus 60°С and relative humidity up to 80%;
  • T3 – for operation at a temperature from minus 10 to plus 55°С and relative humidity up to 80%.

Tachometer weight (with no regard to the flexible shaft) is 1.4 kg as maximum.

Tachometer version

Measuring range, rpm

Operating measuring range, rpm

Tachometer factor

Maximum rotation speed of the tachometer drive shaft,
rpm

Scale type

Division value, rpm

ТМ 0,5

25–500

150–500

2:1, 4:1

1,000, 2,000

right/left zero

5

center-zero

10

ТМ 0,75

40–750

250–750

2:1, 4:1

1,500. 3,000

right/left zero

10

ТМ 1

50–1,000

300–1,000

1:1, 2:1

1,000, 2,000

right/left zero

10

center-zero

20

ТМ 1,5

75–1,500

450–1,500

1:1, 2:1

1,500, 3,000

right/left zero

20

ТМ 2

100–2,000

600–2,000

1:1, 1:2

2,000, 1,000

right/left zero

20

center-zero

50

ТМ 2,5

125–2,500

750–2,500

1:1

2,500

right/left zero

25

ТМ 3

150–3,000

900–3,000

1:1

3,000

right/left zero

50

ТМ 4

200–4,000

1,200–4,000

1:1, 1:2, 1:4

4,000, 2,000, 1,000

right/left zero

50

center-zero

100

ТМ 6

300–6,000

1,800–6,000

1:3

2,000

right/left zero

50

center-zero

200

ТМ 8

400–8,000

2,400–8,000

1:4

2,000

right/left zero

100

center-zero

200

ТМ 12

600–12,000

3,600–12,000

1:6

2,000

right/left zero

100

center-zero

400

ТМ 16

800–16,000

4,800–16,000

1:8

2,000

right/left zero

200

center-zero

400

Notes:

  • The scale of magnetic induction tachometer ТМ 2,5 is calibrated in percent.
  • Tachometer factor means a ratio of the input rotation speed to the rotation speed indicated by the tachometer. –page 88 of the Catalog

Ordering

When ordering, it is required to specify the following:

  1. Description
  2. Version
  3. Tachometer factor
  4. Scale type
  5. Shank bore diameter
  6. Method of attachment to measurement object
  7. Location and direction of drive shaft rotation
  8. Flexible shaft length
  9. Climatic version designation
  10. ТУ designation

Example of an order

 With an upper range limit of 2,000 rpm, 190 mm long flexible shaft, right-handed direction of tachometer drive shaft rotation, right/left zero scale, tachometer factor 1:1, climatic version У3, with the drive shaft in the down position:

“Tachometer ТМ2-1П.190.1:1.У3. shaft down ТУ 25.02.110279-77”;

the same for left-handed direction of tachometer drive shaft rotation:

“Tachometer ТМ2-1Л.190.1:1.У3. shaft down ТУ 25.02.110279-77”.

With an upper range limit of 4,000 rpm, spring-loaded coupling, shank bore diameter of 25 mm, center-zero scale, tachometer factor 1:4, climatic version У3, with the drive shaft positioned to the right:

“Tachometer ТМ4-0.1:4.У3.25. shaft to the right ТУ 25.02.110279-77”. – page 89 of the Catalog

Designations

  • П (Л) – right-hand (left-hand) direction of tachometer drive shaft rotation;
  • 1 – flexible shaft;
  • 0 – center-zero scale.

Overall and attachment dimensions 

Тахометры магнитоиндукционные ТМ

Тахометры магнитоиндукционные ТМ