Remote magnetic induction tachometers Тми (with primary transducers Д-1М, Д-2М, Д-1ММ or Д-2ММ)

Remote magnetic induction tachometers ТМи type (hereinafter – tachometers) are designed for continuous remote measurement of the rotation speed of machine and mechanism parts.
Tachometers consist of primary transducers Д-1М, Д-2М, Д-1ММ, Д-2ММ (hereinafter – primary transducer) and an indicating device of the ТМи type remote magnetic induction remote tachometer (hereinafter – indicating device).
Д-1М or Д-1ММ primary transducer operates with one indicating device, and the Д-2М or Д-2ММ primary transducer – with two.

Primary transducers and indicating devices of the same type are respectively interchangeable. Primary transducers and indicating devices can be supplied separately.

General specifications

Allowable basic error of the tachometer, %, maximum:

• within the operating range ±1
• in the remaining part of the scale (of the upper range limit) ±1.5 – page 90 of the Catalog

Climatic versions of primary transducers:

• У2 – for operation at a temperature from minus 60 to plus 80°С and relative humidity up to 80%;
• T2 – for operation at a temperature from minus 20 to plus 80°С and relative humidity up to 80%.

Climatic versions of indicating devices:

• У2 – for operation at a temperature from minus 50 to plus 50°С and relative humidity up to 80%;
• Т2 – for operation at a temperature from minus 20 to plus 50°С and relative humidity up to 80%. page 90 of the Catalog

Communication line between the primary transducer and the indicating device is no longer than 50 m.

Weight, kg:

• of the indicating device – 0.55
• of the primary transducer – 0.90

Notes:

• Tachometer factor means a ratio of the input rotation speed to the rotation speed indicated by the tachometer.
• The scale of the ТМи1-М1 tachometer is calibrated in percent. –page 90–91 of the Catalog

Ordering

When ordering, it is required to specify the following:

1. Description
2. Version of magnetic induction tachometer or primary transducer
3. Climatic version designation
4. Kit number in case of kit delivery
5. ТУ designation

Page 92 of the Catalog

Example for ordering the tachometer and its components

Magnetic induction tachometer ТМи2-М1 of climatic version У2, kit number 1:

ТМи2-М1 tachometer with an upper range limit of 2,000 rpm, climatic version У placement category 2, with installation kit 1:

“Tachometer ТМи2-М1 У2, kit 1 ТУ 25.02.111970-77”;

ТМи3М-М1 tachometer with an upper range limit of 3,000 rpm, climatic version T placement category 2, with installation kit 3:

“Tachometer ТМи3М-М1 Т2, kit 3 ТУ 25.02.111970-77”;

 ТМи3М-М1 tachometer indicating device with an upper range limit of 3,000 rpm, climatic version T placement category 2, designed for export:

“Indicating device ТМи3М-М1 Т2 ТУ25.02.111970-77”;

Д-1М tachometer primary transducer operating with one indicating device with a 3-lug flange, climatic version У placement category 2, designed for export:

“Primary transducer Д-1М У2.Э ТУ25.02.111970-77”;

Д-2MM tachometer primary transducer operating with two indicating devices with a 4-lug flange, climatic version T placement category 2:

“Primary transducer Д-2ММ Т2 ТУ25.02.111970-77”.– page 92 of the Catalog

Overall and attachment dimensions