Maintenance | Omega Speaker Systems PH-2720-PA instruction

With simulator	Error Condition	Possible Cause	Possible Remedy
connected
connected	A) mV output stuck at	A) Shorted input signal	A) Check preamplifier cable connections and shielding.
	A) mV output stuck at	A) Shorted input signal	A) Check preamplifier cable connections and shielding.
	zero	B) Faulty preamplifier or wiring	B) Verify preamplifier shield connections. Verify cable shield
	B) mV output erratic	C) Faulty preamplifier	wire has been maintained through each cable splice.
	C) mV output stuck at		C) Replace preamplifier
	1.4 VDC

Ok with	A) mV output stuck	A) Cracked electrode glass	A) Replace electrode
simulator	near zero	B1) Poor contact between	B1) Check contacts between electrode and preamplifier.
connected but	B) mV output erratic	electrode and preamplifier	Contacts must be clean and dry.
fails with	C) Output stuck at	connectors	B2) Clean electrode, see electrode manual
electrode	1.4 VDC	B2) Fouled electrode	B3) Isolate electrode in test beaker. If output is stable, ground
		reference or aged electrode	loops may exist causing erratic behavior; isolate instrument
		B3) Ground loop	outputs (i.e. 4 to 20 mA, 0 to 5 VDC).
		C) Faulty preamplifier	C) Replace preamplifier

8. Electrode Maintenance and Cleaning

8.1 Maintenance

Variables can affect long term pH or ORP electrode life. For this reason, a maintenance log is recommended for trend analysis. When storing boxed sensors, lay the sensor flat to maximize hydration of the glass surface. Keep the glass surface wet at all times. Soak the sensor tip in pH 4.0 buffer during system maintenance intervals. In-line applications should be plumbed with a depression (trap) which ensures liquid is maintained around the sensor tip. If sensor dehydration has occurred, soak the sensor tip in pH 4 buffer for 24 to 48 hours, then visually inspect the electrode for surface cracks, swelling, or discoloration.

8.2 Cleaning

Cleaning techniques vary depending on the type of coating present on the glass electrode surface or reference junction.

•Hard coatings: can be chemically removed. Always use the least harsh chemical which will remove the contaminant within two (2) minutes without attacking the materials of construction. e.g. calcium carbonate may be removed with a 5% HCL (muriatic acid) solution.

•Oily or Organic Coatings: can be removed with detergents or an appropriate solvent that does not attack the materials of construction e.g. isopropyl alcohol may be used but acetone must be avoided to prevent damage to the CPVC sensor body.

•ORP electrode surface (platinum rod): can be gently sanded with 600 grit wet and dry silicone or carbide sandpaper, jewelers rouge, crocus cloth, or very fine steel wool.

•Soft coatings: can be removed by vigorous stirring, or with directed spray of an applicable detergent or solvent onto the glass electrode surface. Chlorine bleach or mild detergent may be used to remove soft coatings. Always rinse electrode tip in clean water after cleaning.

WARNING!

When using chemicals or solvents care should be taken and appropriate eye, face, hand, body, and/or respiratory protection should be used.

PH-2720-PA specifications

The Omega Speaker Systems PH-2720-PA is a robust and versatile audio solution designed to cater to a range of professional audio applications. Known for its reliability and exceptional sound quality, this speaker system is ideal for live performances, public speaking events, and small to medium-sized venues.

One of the standout features of the PH-2720-PA is its impressive power handling capability. With a peak power output of up to 2000 watts, the speaker is capable of delivering clear and powerful audio without distortion, even at high volumes. This makes it an excellent choice for music events, DJ setups, and other scenarios where clear sound reproduction is essential.

The speaker is equipped with a durable 12-inch woofer that provides deep bass and a 1-inch compression driver for crisp high frequencies. This combination ensures a balanced sound signature, making it suitable for a variety of music genres and audio content. Whether it’s rock, jazz, or spoken word, the PH-2720-PA reproduces audio with clarity and presence, making it a favorite among artists and audio engineers alike.

Portability is another significant characteristic of the PH-2720-PA. The speaker is designed with a lightweight yet sturdy construction, allowing for easy transportation and setup. This feature is especially beneficial for mobile DJs and event organizers who require quick and hassle-free assembly and disassembly of their sound systems.

The PH-2720-PA also incorporates advanced technologies that enhance its performance. The speaker features a built-in multi-channel mixer, allowing users to connect multiple audio sources directly. This facilitates seamless transitions between different audio inputs, making it easier to manage live performances or events with various audio needs.

In terms of connectivity, the PH-2720-PA offers various input options, including XLR and TRS connectors, ensuring compatibility with a wide range of audio equipment. Additionally, the speaker includes a stereo output, enabling users to link multiple units together for larger setups without compromising audio quality.

Durability is a key focus of the Omega Speaker Systems PH-2720-PA. The speaker cabinet is crafted from high-quality materials that withstand the rigors of frequent use. The protective grille adds an extra layer of security against potential damage, ensuring the speaker remains a reliable choice for years to come.

In summary, the Omega Speaker Systems PH-2720-PA stands out in the crowded audio market due to its powerful sound output, versatile connectivity options, and robust build quality. Whether for live performances, public events, or temporary setups, it offers the performance and reliability that audio professionals demand.