Fig. 8: A two-step action with a PHÖNIX level switch type 740.0060 utilising its hysteresis.

4.2 Using the type 740.0065NA in a hazardous area

The limit switch type 740.0065NA is designed for usage in NAMUR-circuits (s. fig. 2b). It consists only of passive devices (switch and resistors), which allows - according to EN 50020 / VDE 0170 part 7 - the us- age in hazardous areas zone 1 and 2, if they are part of a intrinsic save circuit and the maximum values of voltage, current and power are not exceeded. The maximum of self heating is determined by RS (RT= 180°C/W) and the utilised power supply. If using the type 740.1061 (Pmax=51mW), the heating up is less than 10°C.

Typ 740.0065N

Typ 740.0065N

hazardous area

safe

supply

area

 

Fig. 9: Usage of the type 740.0065NA in a hazardous area

4.3 Heat protection in high temperature

If medium temperature is more than 150°C (>260 °C for 740.0065NA) to reduce the heat radiation a heat protection plate (Order-No.: 5745000159) has to be mounted between the tube and the switch. In this case the switch must not be isolated together with the tube.

5 Maintenance

The switch is free of maintenance.

6 Warranty

We grant a guarantee period of 24 months for our products, provided that they have been handled and operated under conditions described in the Operating Manual. In case of wear and spare parts we only guarantee for failures in construction and material.

PHÖNIX Messtechnik GmbH, Salzschlirferstr. 13, D-60386 Frankfurt/M., Germany, Tel: +49/69/416742 -20, Fax: -29

13

Page 14
Image 14
Euphonix Maintenance, Warranty, Using the type 740.0065NA in a hazardous area, Heat protection in high temperature

740.006, 740.0065, 740.0065NA specifications

The Euphonix 740.0065NA, 740.0065, and 740.006 are part of a distinguished line of audio equipment designed to meet the complex needs of audio professionals. These models stand out due to their exceptional versatility and sound quality, making them suitable for a variety of applications, including recording studios, broadcast facilities, and live sound situations.

One of the main features of the Euphonix 740 series is its advanced digital signal processing capabilities. This enables users to achieve pristine sound quality with minimal latency, essential for professional audio productions. The devices incorporate a high-resolution digital audio path that preserves the integrity of the audio through the entire process, reducing undesirable artifacts that can arise from poor signal handling.

Another notable characteristic of the Euphonix 740 series is its intuitive user interface. The control surfaces are designed for quick access to essential functions, allowing engineers and producers to focus on their work without being bogged down by complicated navigation. The ergonomic layout ensures that users can seamlessly switch between various operational modes, whether mixing, tracking, or editing.

In addition to its digital capabilities, the Euphonix 740 series also features advanced connectivity options. The devices support various audio formats, including both analog and digital signals, providing flexibility to integrate into existing setups. The inclusion of MADI, AES/EBU, and ADAT interfaces facilitates easy communication between different pieces of audio equipment, allowing for streamlined workflows in multi-device environments.

The integration of high-quality preamps further enhances the performance of the Euphonix 740 series. The preamps are designed to deliver a clean and transparent signal, which is critical for capturing vocals and instruments with high fidelity. Their low noise floor and broad dynamic range make them suitable for a diverse range of recording scenarios.

Durability is also a key aspect of the Euphonix 740 series. Built with robust materials, these devices are engineered to withstand the rigors of professional use while maintaining reliability over time. This durability, combined with their exceptional sound quality, makes the Euphonix 740.0065NA, 740.0065, and 740.006 an excellent investment for audio professionals who require high-performance equipment.

Overall, the Euphonix 740 series encapsulates advanced technology, usability, and reliability, providing audio engineers with powerful tools to create exceptional sound. Whether in a studio or on stage, these devices are engineered to meet the high demands of modern audio production.