Product Overview
This indoor, single-pole, capacitive voltage detector Comet BL-I is part of HORSTMANN's Comet series. The Comet BL-I (order no. 50-0903-012) is specified for a nominal voltage range of 10–20 kV and is listed on the manufacturer's product page with total length and immersion depth in millimeters.
Function and Indicators
The Comet BL-I clearly indicates "voltage present" or "no voltage" and is available with the following indication options:
- Optical indication: red and green LED.
- Optical and acoustic indication: red and green LED plus buzzer.
The device has an integrated self-test that checks the circuitry, including the contact electrode, before each use.
Typical Applications
The Comet BL-I is used to determine the presence of mains voltage ("voltage present" / "voltage not present") and supports work during maintenance, installation, and troubleshooting, as specified by the manufacturer.
Technical Details
- Nominal voltage range: 10–20 kV (specified for this order variant).
- Total length: 1,570 mm (listed as total length a [mm] on the manufacturer's page).
- Immersion depth: 762 mm (listed as immersion depth b [mm] on the manufacturer's page).
- Power supply: 2 lithium cells.
- Operating temperature: -25 °C to +70 °C.
- Integrated self-test: Checks circuit function including contact electrode before each use.
- Operational readiness: The manufacturer specifies 6-year operational readiness (under specified use: 10 standby cycles/day and 230 working days/year).
Specifications
- Product: Comet BL-I.
- Manufacturer: HORSTMANN.
- Manufacturer's part number: 50-0903-012.
- Nominal voltage range: 10–20 kV.
- Total length: 1,570 mm.
- Immersion depth: 762 mm.
- Indication: Optical (red/green LED) or optical + acoustic (red/green LED + buzzer).
- Self-test: Built-in, including contact electrode check.
- Power supply: 2 lithium cells.
- Operating temperature: -25 °C to +70 °C.
- Operational readiness: 6 years (according to manufacturer's specification under specified use).
Sources
See manufacturer's product page for the Comet series
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