Weidmüller Ltd.,
1 Abbey Wood Road,
Kings Hill, West Malling,
Kent, ME19 4YT.
+44 (0)1732 877000
+44 (0)1732 874296
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Weidmüller's Wave TTA: One module fits all – universal signal conditioner and trip amplifier offers unique flexibility.
With its new Wave TTA (Transmitter Trip Amplifier), Weidmüller now offers a universal signal conditioner and trip amplifier. It is an extension to the WAVESERIES of analogue signal conditioners already widely deployed in process and industrial automation applications. The Wave TTA is an isolator, conditioner, transmitter, lineariser and trip amplifier in a single unit. The inputs and outputs can be individually configured using a PC and interface module. Equipped with a wide-range power supply the Wave TTA ensures precise and stable operations with all common sensor types. The Wave TTA accepts and processes widely differing input signals – no matter if temperature signals such as from resistance thermometers or thermocouples, if potentiometers, frequency transmitters or DC voltage or current signals. The unit isolates, transmits and linearises sensor signals and supplies standardised analogue current and voltage signals to the output. For alarm functions there are two relay contacts with configurable switching thresholds. Precision measurement accuracy is a distinguishing characteristic of this unit. The Wave TTA (protection class IP 20) also features a compact design (92.4 mm x 112.5 mm x 45 mm, L x H x W) and can be deployed without restrictions in ambient temperatures from -40 to 70 °C. Approvals applied for include C1D2 and Zone 2 (ATEX) for hazardous area deployment. Users are more than familiar with the problem – valuable time and money is wasted if there is no suitable replacement isolator or conditioner available. Weidmüller's new Wave TTA (Transmitter Trip Amplifier) is a universal signal conditioner and trip amplifier, in other words 'one module fits all'. Uniting the functions isolation, signal conditioning, power supply to the sensors, linearization and trip amplifier in a single unit, the Wave TTA is simply unique as far as flexibility is concerned.
The Wave TTA is a member of the WAVESERIES family of analogue signal conditioners and has been specially developed to meet the needs of process automation. For instance, the TTA remains stable and functions to precision with all common types of sensors in a wide range of ambient temperatures and power supplies. 24 V DC is made available to sensors and field devices using two-wire technology. Alternatively, the Wave TTA offers a passive loop-powered input. The module processes signals from all common types of sensors and DC signals. The TTA also allows users to create special linearization curves. To simplify installation and commissioning procedures, probe contacts facilitate testing of current and voltage inputs without having to disconnect the wiring. Users are able to choose between standard or scalable DC current and voltage ranges for linear and/or galvanically separated analogue outputs. Their configuration can be direct or inverted. The output response to an open-circuit fault can be configured to the respective maximum or minimum value. The Wave TTA is extremely accurate (<0.1 percent) and thermally stable (<0.01 percent K).
To monitor limit values the Wave TTA is equipped with two individually configurable relay outputs with changeover contacts. The standard ex works setting for the module input/output is 4…20 mA / 4…20 mA. Configuration is performed using the interface module CBX100 USB This is connected to the Wave TTA via a USB port on a PC or laptop. The configuration software 'TTA SET' is included in the scope of supply and can also be downloaded free of charge from Weidmüller's website: www.weidmueller.com. The integrated wide-range power supply facilitates operating the Wave TTA in the voltage range 18 V …264 V AC/DC.
Peripheral signalling devices are connected by means of PCB connectors optionally available with screw or tension clamp connection technology. The black plastic housing with flammability class V0 to UL 94 is simply snapped onto TS 35 mounting rails. The interface for configuring the module is below the easily accessible header plate.
The signal conditioner and trip amplifier Wave TTA carries the CE mark. Other approvals such as C1D2 and Zone 2 (ATEX) for hazardous areas as well as NEPSI (National Supervision and Inspection Center for Explosion Protection and Safety of Instrumentation) are being prepared.
