Comet series

Voltage detectors with built-in self-test

The Comet voltage detectors from Horstmann are used to determine the operating voltage, with a clear indication of “voltage present” or “voltage not present”. They have an integrated self-test, which is used to carry out a function check before use.

Developed with a clear focus on the requirements of technicians, these robust test devices not only offer maximum measuring accuracy but also integrated self-testing, which increases your safety and makes everyday work easier.

Whether for maintenance, installation, or troubleshooting, the Comet series supports you with sophisticated functions and durable quality. Rely on proven technology “Made by Horstmann” to make your work efficient and safe. The robust design withstands even demanding working conditions, while the intuitive operation enables precise measurements even in hard-to-reach areas.

The Comet series consists of six appliances:

  • Comet BL-I | Comet BL-A – Classic design
  • Comet BS-I | Comet BS-A – Classic design + switchable
  • Comet BK-I | Comet BK-A – Shortened design

In accordance with DGUV regulation 3 (Table 1c), all Comet appliances are subject to the maintenance test prescribed every 6 years.

Comet BL-I | Comet BL-A

Product features

  • According to IEC 61243-1 (VDE 0682-411) Category S
  • Comet BL-I: Design for the interior
  • Comet BL-A: design for outdoor use
  • Voltage indication visual or visual and audible
  • Built-in self-test

BL-I / BL-A are single-pole, capacitive voltage detectors. The voltage detectors are provided with a built-in self-test facility which checks the function of the circuit including the contact electrode (comprehensive self-test function) before each use.

Two long rods as voltage detectors Comet, which have a yellow handle and a small contact tip at the end

Technical data

Comet BL-I | Comet BL-A
Application
  • Comet BL-I: Under dry conditions, usually indoors
  • Comet BL-A: In dry and wet conditions, either indoors or outdoors
Indication
  • Optical: 1 red LED / 1 green LED
  • Optical and acoustic: 1 red LED / 1 green LED / 1 buzzer
Nominal voltage50 Hz (optional 60 Hz)
Power supply

2 lithium cells

6-year operational readiness with 10 standby cycles / day and 230 working days / year

Operating temperature-25 °C to +70 °C, climate class N and W
Two long rods as voltage detectors Comet, which have a yellow handle and a small contact tip at the end
Nominal voltage [kV]Total length a [mm]Insertion depth b [mm]

Order no. Comet BL-I (indoor) Optical

Order no. Comet BL-I (indoor) Optical and acousticOrder no. Comet BL-A (outdoor) OpticalOrder no. Comet BL-A (outdoor) Optical and acoustic
51.27046250-0901-01150-0903-00850-1001-00950-1003-009
101.27046250-0901-01250-0903-00950-1001-01050-1003-010
201.42061250-0901-01350-0903-01050-1001-01150-1003-011
6-101.42061250-0901-01450-0903-01150-1001-01250-1003-012
10-201.57076250-0901-01550-0903-01250-1001-01350-1003-013
20-301.57076250-0901-02250-0903-01850-1001-01550-1003-018

Comet BS-I | Comet BS-A

Product features

  • According to IEC 61243-1 (VDE 0682-411) Category S
  • Voltage detectors for nominal voltages between
    5 and 30 kV, switchable
  • Comet BS-I: Design for the interior
  • Comet BS-A: design for outdoor use
  • Voltage indication visual or visual and audible
  • Shortened design
  • Integrated self-testing


The Comet BS-I and BS-A are single-pole, switchable voltage detectors in a shortened design. The voltage detectors are provided with a built-in self-test facility which checks the function of the circuit including the contact electrode (comprehensive self-test function) before each use.

The turning knob is used to select between three nominal voltage ranges:
0: Off
1: 5 – 10 kV
2: 10 – 20 kV
3: 20 – 30 kV

Two long rods as voltage detectors Comet, which have a yellow handle and a small contact tip at the end

Technical data

Comet BS-I | Comet BS-A
Application
  • Comet BS-I: Under dry conditions, usually indoors
  • Comet BS-A: In dry and wet conditions, for indoor or outdoor use
Indication
  • Optical: 1 red LED / 1 green LED
  • Optical and acoustic: 1 red LED / 1 green LED / 1 signal buzzer
Nominal voltage50 Hz (optional 60 Hz)
Power supply

2 lithium cells

6-year operational readiness with 10 standby cycles / day and 230 working days / year

Operating temperature-25 °C to +70 °C, climate class N and W
Two long rods as voltage detectors Comet BS-I_BS-A, which have a yellow handle and a small contact tip at the end
Nominal voltage [kV] Total length a [mm] Insertion depth b [mm] Order no. Comet BS-I (indoor) Optical Order no. . Comet BS-I (indoor) Optical and acoustic Order no. Comet BS-A (outdoor) Optical Order no. Comet BS-A (outdoor) Optical and acoustic
5-30 1.570 758 50-0921-001 50-0923-001 50-1021-001 50-1023-001

Comet BK-I | Comet BK-A

Product features

  • According to IEC 61243-1 (VDE 0682-411) Category L (overhead line)
  • Comet BK-I: Design for the interior
  • Comet BK-A: design for outdoor use
  • Voltage indication visual or visual and audible
  • Shortened design
  • Integrated self-testing

The Comet BK-I and BK-A are single-pole, capacitive voltage detectors in a shortened design. The circuit including the contact electrode is tested (complete self-test).

Two short rods as voltage detectors Comet BS-I_BS-A, which have a yellow handle and a small contact tip at the end

Technical data

Comet BK-I | Comet BK-A
Use
  • Comet BK-I: Under dry conditions, usually indoors
  • Comet BK-A: In dry and rainy conditions, for indoor or outdoor use
indication
  • Optical: 1 red LED / 1 green LED
  • Optical and acoustic: 1 red LED / 1 green LED / 1 signal transmitter
Nominal frequency50 Hz (optional 60 Hz)
Supply

2 lithium cells

6-year operational readiness with 10 standby cycles / day and 230 working days / year

Operating temperature-25 °C to +70 °C, climate class N and W
Two short rods as voltage detectors Comet, which have a yellow handle and a small contact tip at the end
Nominal voltage [kV]Total length a [mm]Insertion depth b [mm]Order no. Comet BK-I (indoor) OpticalOrder no. Comet BK-I (indoor) Optical and acousticOrder no. Comet BK-A (outdoor) OpticalOrder no. Comet BK-A (outside) Optical and acoustic
6-1090011050-1301-00150-1303-00150-1401-00150-1403-001
10-2090021050-1301-00250-1303-00250-1401-00250-1403-002

All important documents for the device

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Matching articles

PERFECT MATCH

Here you will find the matching equipment set and accessories for this item. All components are technically matched to each other and guarantee optimum functionality. For customer-specific requirements and individual offers, please contact our sales department.

Equipment set

  • 1 Comet voltage detector

Accessories

  • Handle extension
  • Contact tip
  • Catch fork
  • Storage bag/case

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