DK (NAMUR, 8.2V)
Article Number: 92.099 050.xxx
- Pulse transducer
- 2-Wire
- Alu housing
- IP67
Features
Kiepe pulse transducers of type DK and EOG operate without contact. To make installation easier, the contactless transmission of the rotary movement into pulses already takes place in these transducers. For this purpose, a pulse disk is permanently mounted on the transducer shaft in the transducer housing. The DK or EOG pulse transducers are connected to the shaft to be monitored via a coupling. The DK /... or EOG /... transducers are always suitable for use where it is not possible to install pulse disks or use other rotating machine parts for pulse transmission. By using these closed pulse transducers, the protective cover required for contact and non-contact pulse transducers can be dispensed with. The pulse sequences can be used for overspeed or underspeed monitoring with the Kiepe speed monitor type EDW. In addition with the Kiepe belt drive B, direct speed monitoring can be achieved on conveyor belts. Reliable slip monitoring thus prevents damage to the conveyor belt. The Kiepe pulse transducer type EOG and DK complies with the Low Voltage Directive 2014/35/EU and EMC Directive 2014/30/EU.
Note The use of shielded cables is recommended for joint installation with control or power cables.
Corrosive
- Powder
- Conditionally Suitable
- Gravel
- Conditionally Suitable
- Rubble
- Not Suitable
Non-Corrosive
- Powder
- Suitable
- Gravel
- Suitable
- Rubble
- Not Suitable
The DK requires an evaluation device that can evaluate current signals in accordance with NAMUR. The DK pulse transducer essentially consists of a transistor oscillator whose high frequency stray field forms the response zone. When a metallic object is immersed in the effective range of the stray field, the oscillating circuit is short-circuited and its internal resistance becomes highly resistive. The oscillations stop and the current consumption of the pulse transducer decreases. This change in current is evaluated by the Kiepe EDW speed monitor.
Variants of type DK are available with 1 or 5 pulses/rev.
| Designation | Speed monitoring - pulse transducer type DK & type EOG |
|---|---|
| Protection rating | IP67 |
| Connection cross section (max.) | 2,5 mm2 |
| Mounting | 4 x M6 / L <12 mm |
| Weight | 1,5 kg |
| Permissible ambient temperature | -25°C...+70°C |
| Functionality | inductive |
|---|---|
| Complies with | EN 60947-1, EN 60947-5-6 |
| Switching system | NAMUR |
| Pulse disk Imp./U. | 1,5 |
| Rated operating voltage Ub | - |
| Rated voltage | (nom.) 8,2 V |
Current consumption activated Current consumption unactuated | ≤ 1,2 mA ≥ 2,1 mA |
| Rated insulation voltage Ui | DC 8,2 V |
| Switching output | NAMUR |
| Switching frequency (max.) | 5 kHz |
| Connection | 2-wire |
| Connection drawing | B |
Pulse transducer type EOG and DK are attached to the substructure of the monitored machine using 4 M6 screws each. This is done using flange (F1, F2) or fixing foot F4. The connection to the rotating shaft is made using couplings (K1, K6, K7) depending on the EOG or DK shaft version. When the speed is taken directly from the belt, the EOG or DK is attached to the belt drive B. The belt drive is pressed against the cleaned side of the belt using a hinge pedestal GB. The electrical connection is made when the device is open via the cable gland included in the scope of delivery directly to the accessible connection screws.
Note When using the belt drive B, make sure that the belt load cannot damage the EOG or DK. With direct connection using fasteners care must be taken to ensure that the EOG or DK can resonate with the rotating part of the machine (see mounting drawing).
Variants
| Name | Ordering No. | Weight | Impulse / Revolution | Shaft |
|---|---|---|---|---|
| DK 111-2 S | 92.099.050.211 | 1.1 kg / 1 Unit | 1 Imp./Rev. | Round 10 mm |
| DK 155-2 S | 92.099.050.215 | 1.1 kg / 1 Unit | 5 Imp./Rev. | Round 10 mm |
| DK 155-3 S | 92.09.050.315 | 1.1 kg / 1 Unit | 5 Imp./Rev. | Flat 9mm x 2-8mm |
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