HS2018 Level and High-Frequency Protection Channel Comprehensive Tester Function Overview:

The HS2018 Level and High-Frequency Protection Channel Comprehensive Tester is a carrier communication and high-frequency protection testing instrument. The HS2018 Level and High-Frequency Protection Channel Comprehensive Tester is a handheld, multifunctional, automatic comprehensive tester for carrier channels and high-frequency protection that can replace the testing functions of selective level meters and level oscillators. It is simple to use and easy to operate.

The HS2018 Level and High-Frequency Protection Channel Comprehensive Tester integrates the testing functions of selective level meters and handheld level oscillators; with an operating frequency range of 40Hz to 2000KHz, it covers all spectra for carrier channels up to 300 channels, including voice channels, carrier channels, and communication cable/network cable transmission tests. It is particularly suitable for testing channel attenuation, noise (clutter) interference, and harmonic distortion in power carrier systems; quickly capturing and automatically measuring signals from transmitters and receivers; and testing performance indicators such as wave traps and coupling filters. This instrument features a wide level measurement range, excellent selectivity, and low inherent distortion. It is an ideal, high-quality level testing instrument.

HS2018 Level and High-Frequency Protection Channel Comprehensive Tester Features:

● Integrates multiple functions such as handheld selective level meters and handheld level oscillators into one unit.

● The selective level meter and level oscillator can independently perform their respective testing functions simultaneously.

That is, the two units can be set to different frequencies, levels, and input/output impedances.

● An intelligent, digital, one-button function interface makes testing with the instrument very simple.

● Features automatic testing functionality for high-frequency relay protection channels.

● Frequency auto-search function can simultaneously measure unknown frequencies and their level values.

● The oscillator can output a level of +26dB, and the selective level meter can measure levels up to +41dB.

● Both coaxial and balanced connections support four impedances: 75Ω, 100Ω, 600Ω, ∞ (0Ω).

● Uses an electronic potentiometer for automatic level calibration.

● Frequency step value can be arbitrarily set between 1Hz and 9.999KHz.

● Level step value can be arbitrarily set between -0.1dB and -10dB.

● 320×240 Chinese character dot matrix large-screen LCD with LED backlight and full Chinese interface.

● Testing results can be stored in the device, reviewed on the device, and printed via computer.

● The addition of on-device storage and review functions allows you to test without needing to record by hand and to view multiple test results at any time.

● Dual power supply options: AC and DC:

AC: Powered by a 220V±10% (50Hz) AC adapter.

DC: Powered by a built-in rechargeable lithium-ion battery;

Standby time up to approximately 8 hours. An optional spare lithium-ion battery is also available.

HS2018 Level and High-Frequency Protection Channel Comprehensive Tester Technical Specifications:

1. LCD screen specification and size: 320×240 Chinese character dot matrix LCD screen; full Chinese interface, LED backlight.

2. Uses an electronic potentiometer for automatic level calibration: ±0.2dB

3. Frequency step value can be arbitrarily set between 1Hz and 9.999KHz

4. Level step value can be arbitrarily set between 0.1dB and 30dB

5. Impedance: Both the selective level meter and level oscillator support four impedances for coaxial and balanced connections

A Selective level meter: Coaxial 75Ω, 100Ω, 600Ω, ∞ (high impedance)

Balanced 75Ω, 100Ω, 600Ω, ∞ (high impedance)

B Level oscillator: Coaxial 0Ω, 75Ω, 100Ω, 600Ω

Balanced 0Ω, 75Ω, 100Ω, 600Ω

6. Relative error of internal level when the selective level meter and level oscillator are tested against each other

Based on the selective level meter 75Ω, 0dB range, 80KHz: ±0.2dB

7. Impedance conversion error:

Based on the selective level meter 75Ω, 0dB range, 80KHz: ±0.2dB

7. Frequency error: 40Hz to 2000KHz: ±2×10??

8. Dual power supply options: AC and DC:

A: AC: Powered by a 220V±10% (50Hz) AC adapter.

B: DC: Powered by a built-in rechargeable lithium-ion battery; standby time up to approximately 8 hours.

9. MTBF (Reliability): Approximately 3000 hours

10. Safety requirements:

Complies with Group II requirements specified in GB6587.1, with a rated operating range: 0°C to 40°C

11. Power consumption: Approximately 6VA

12. Instrument dimensions: 228mm×140mm×68mm

13. Instrument weight: Approximately 1.8Kg

HS2018 Level and High-Frequency Protection Channel Comprehensive Tester Standard Configuration:

1. HS2018 Level and High-Frequency Protection Channel Comprehensive Tester: 1 unit.

2. User manual: 1 copy.

3. Coaxial test cable: 1 piece.

4. Coaxial open-circuit test cables: 2 pieces.

5. Balanced test cable: 1 piece.

6. Balanced open-circuit test cables: 2 pieces.

7. AC adapter: 1 unit.

8. 232 print interface connection cable: 1 piece.

9. Shoulder strap soft case: 1 unit.

Optional Accessories:

External spare lithium-ion battery.

AC adapter.

HS2018 Level and High-Frequency Protection Channel Comprehensive Tester After-Sales Service:

Free warranty for twelve months from the date of purchase. After the warranty period, only the cost of parts will be charged for instrument repairs.