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SigNET AMPN Strength Meter c/w Pink Noise Gen £88.08
Description
Does your induction loop installations comply with current British standards?
BS8300 (the code of practice for the design of buildings and their approaches to meet the needs of disabled people) states that all loop systems should conform to BS7594 and BS EN60118-4. The best way to ensure compliance is to use SigNET’s new FoSmeter / P-Ngen range of induction loop testing equipment.
The range comprises the P-NGen Pink Noise Generator and the FoSmeter Magnetic Field Strength Meter. Used together, they represent the most reliable method of ensuring that an AFILS system is working correctly.
A combined Pink Noise Generator and Magnetic Field Strength Meter (the FoSmeter+) and a combined Magnetic Field Strength Meter and Loop Listening Device (the FoSmeter H) are also available.
Audio frequency induction loop systems require careful testing and calibration prior to operation. The most efficient way of doing this is to use a P-NGen Pink Noise Generator and a FoSmeter Magnetic Field Strength Meter.
BS7594 recommends that the minimum magnetic field strength of an induction loop system over a covered area should be 100mA RMS per metre. The most effective and reliable way of ensuring this requirement is met is to measure the magnetic field strength of a steady output from the induction loop amplifier.
Unlike music or speech (both of which provide a variable sound output from which it is virtually impossible to obtain an accurate RMS reading), pink noise has an equal and constant amount of energy content per octave of bandwidth. When fed into an induction loop system, pink noise therefore gives a constant magnetic field strength which can be easily and accurately measured using a magnetic field strength meter.
R.R.P. £99.00
Our Price: £88.08 Inc VAT
Technical Specifications
- The FoSmeter+ combines the functions of the P-NGen pink noise generator and the FoSmeter magnetic field strength meter (as detailed in columns one and two) in a single unit.
- We recommend the FoSmeter + is used for testing small installations only as it is not practical to have a long lead trailing from the pink noise output socket to the AFILS amplifier. For larger applications, use a separate stand-alone pink noise generator with a FoSmeter, FoSmeter+ or FoSmeter H.
- Order code: AMPN
- Dimensions (WxHxD): 64 x 101 x 22mm
- Controls: 1 x Power on/off switch;
- 1 x Filter switch;
- 1 x Gain switch.
- Indicators: 1 x Power on LED;
- 10 x field strength LEDs.
- Pink noise output level: 400mV RMS
- Pink noise crest factor: 4:1 approx.
- Pink noise output socket: 3.5mm jack
- Battery requirements: 1 x PP3
Features
- A new range of cost-effective induction loop testing equipment from SigNET
- Ideal for testing and maintaining virtually all makes of induction loop system to ensure compliance with industry accepted standards
- The range comprises a pink noise generator (the P-NGen) and a selection of magnetic field strength meters (the FoSmeter, FoSmeter + and FoSmeter H)
- The P-NGen pink noise generator can be connected to the line level input of most induction loop systems and provides a constant 400mV RMS balanced signal which can be much more accurately measured than the variable output of music or speech
- The FoSmeter range of magnetic field strength meters can be used to measure the magnetic field strength of any AFILS system in increments of 3dB (relative to 100mA/m)
- All FoSmeter variants feature an ‘A-weighted’ filter to match the characteristics of the human ear and minimise the effects of mains or electrical hum and a High/Low gain switch* to help monitor the effects of crosstalk or overspill
- A combined FoSmeter/Pink Noise Generator (the FoSmeter +) and a combined FoSmeter/Loop Listener (the FoSmeter H) are also available
