Effects of Lightning

PM-PRO POWER CONDITIONER/MONITOR

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Symptom: Possible Cause:

Action Needed:

PROTECTION OK Indicator not lit.

Protection devices are damaged.

Factory Service.

Ground OK Indicator not lit.

No building ground, bad outlet.

Locate good ground, run ground wire.

Flashing voltmeter display.

Input voltage is marginally high or marginally low. Correct line voltage. Consider installing a Furman voltage regulator.

EXTREME VOLTAGE Indicator is flashing.

Input voltage is extremely high or extremely low, causing power to the PM-PRO's outlets to be shut down.

Correct line voltage. Consider installing a Furman voltage regulator.

Lightning is a natural phenomenon of overwhelming force that represents the most difficult circumstance faced by a power protection product. The degree of protection a PM-PRO can offer depends on the intensity of the strike. If lightning strikes a distant power line and causes a relatively small disturbance to reach your location, the spike suppressors in the PM-PRO will absorb the excess voltage in- visibly and harmlessly. However, if lightning strikes the actual building where the PM-PRO is installed (or somewhere very nearby), some damage may be unavoid- able due to the extremely high voltage and current present. If this does occur, most likely damage will be limited to the PM-PRO itself and will affect only certain spike suppression components (called varistors or MOV's.) In this "suicide" mode, the PM-PRO may sustain minor damage but generally will protect all equipment plugged into it from much more serious and costly damage as long as that equipment is properly grounded. Proper grounding requires the use of three-prong AC cords, and that the building's outlets are actually grounded to earth as specified by the National Electric Code.

Any PM-PRO known to have taken a direct lightning hit should be checked by a qualified technician or the Furman factory to determine whether the MOV's need replacement. (If the PROTECTION OK indicator is not lit, there is definitely some damage. Some spike suppression capability may still be available by MOV Bank #2, but there is no guarantee of this.)

For optimum protection, you should not rely exclusively on the PM-PRO to pro- tect against a direct lightning hit. The first line of defense against lightning should be a lightning arrestor installed on your building's electrical service entrance. If your building does not have one, contact your local power company or a contractor to have one installed.

PM-PRO, PM-PRO-E specifications

Furman Sound is a renowned brand in the audio industry, known for its innovative power management and audio solutions. Among their impressive lineup, the Furman PM-PRO and PM-PRO-E power sequencers stand out for their exceptional features and technologies that cater to the needs of professionals in audio production and live sound environments.

The Furman PM-PRO is designed to ensure that audio equipment receives clean and reliable power, reducing the risks of audio distortion and equipment damage. One of its key features is the "Linear Filtering Technology," which effectively eliminates RF interference and provides a noise-free audio experience. This is crucial for musicians, engineers, and venues seeking pristine sound quality.

Additionally, the PM-PRO incorporates a built-in “voltage regulator,” which safeguards connected gear against voltage spikes and drops. This protection is vital, particularly in environments where power supply can be inconsistent. With a maximum load of 15 amps, the PM-PRO can accommodate a variety of audio gear, making it suitable for both studio and live performances.

Another standout feature of the PM-PRO is its "soft start" technology, which allows equipment to power on smoothly, reducing the risk of pops and potential damage that can occur with abrupt power surges. The device also includes a computer interface, allowing users to monitor voltage levels and power conditions in real-time through compatible software.

The PM-PRO-E variant introduces additional enhancements for even greater control and protection. It features advanced network capabilities, enabling remote monitoring and management of power distribution through an Ethernet connection. This is particularly beneficial for large installations, providing integrators with the tools to troubleshoot and manage power usage efficiently.

Both the PM-PRO and PM-PRO-E come equipped with multiple outlets to accommodate an array of audio equipment, and their rack-mountable design ensures they integrate seamlessly into any professional setup. Furman’s commitment to quality is evident in the robust construction of these devices, designed to withstand the rigors of live performance and studio use.

In conclusion, the Furman Sound PM-PRO and PM-PRO-E serve as essential power management solutions that prioritize performance, reliability, and user control. Their advanced technologies not only enhance sound quality but also protect valuable audio equipment, making them invaluable assets for anyone serious about sound production. Whether in the studio or on stage, these devices are engineered to deliver consistent and interference-free power, meeting the demands of discerning audio professionals.