Designed for: Sonardyne Global Headquarters T. +44 (0) 1252 872288 F. +44 (0) 1252 876100 E. [email protected] www.sonardyne.com Datasheet Wideband Mini Transponder (WMT) Semi-Directional Omni-Directional Description Sonardyne’s existing Wideband SubMini transponder (WSM) is typically interrogated by a responder trigger sent down the ROVs’ umbilical or a narrow band tone signal. In some situations, reverberation or multipath of the tone interrogation can cause interference problems. The WMT is Sonardyne’s first mini-sized transponder. It is slightly larger than the WSM and provides full two-way Wideband interrogation and reply which completely mitigates interference from and to other users. For use on ROVs, the WMT includes responder trigger, an integrated rechargeable Li-ion battery pack that is charged from the ROV’s power supply and full RS232 communications enabling channel set up, power and gain etc. to be changed from the surface. The WMT is available in three depth versions: 3,000 m, 5,000 m and 7,000 m. The 5000 m and 7,000 m versions have a higher acoustic output power level for improved long range operation. An On/Off switch (3,000 m only) helps to ensure that the internal battery is not discharged when not in use. If an umbilical trigger is not available, then the full Wideband transponder mode provides excellent USBL performance from a small, lightweight package. Remote omni or directional transducers are available for both the WMT and existing WSM range. These make installation on an ROV easier as the remote transducer can be installed where there is good lineof-sight and is easily replaced if damaged. The main body of the transponder can be installed within the ROV frame where it is well protected from damage. Note: The remote transducer option is not available for 5,000 m and 7,000 m versions. Key Features • Full two-way Sonardyne Wideband®2 interrogation and reply – mitigates any interference and multi-path issues • Mini size – lightweight and small • Responder mode • Li-ion rechargeable battery pack • Optional remote transducer (3,000 m only) • Pressure sensor fitted as standard. • Full RS232 control from the surface • External On/Off switch (3,000 m only) • Field proven Designed for: Sonardyne Global Headquarters T. +44 (0) 1252 872288 F. +44 (0) 1252 876100 E. [email protected] www.sonardyne.com Specifications Wideband Mini Transponder (WMT) Ø88.0 mm [3.46 in] Housing MAX Ø93.1 mm [3.67 in] Over PVC sleeve 510.3 mm [20.09 in] 350.0 mm [13.78 in] (Clamping area) .0 98 Ø88.0 mm [3.46 in] Housing. Ø Ø93.1 mm [3.67 in] Over PVC Sleeve. 499.0 mm [19.65 in] 6 .8 [3 m . m AX M ] in System Features Depth Rating Frequency Band Transducer Beam Shape Source Level High Power (re 1 µPa @ 1 m) Low Power Tone Equivalent Energy High Power (TEE)* WBv2+ Low Power Range Precision Depth Sensor Communications Interface External Supply Voltage External Power Sleep Wideband Listening Battery Charging Peak (During Transmission) External Power Switch Battery Life Listening (Li-ion 15 V) Continuous 5 Sec Interrogation Operating Temperature Storage Temperature Mechanical Construction 350.0 mm [13.78 in] (Clamping area) Type 8190-3111 Type 8190-3112 Type 8190-5212 /7212 3,000 m 3,000 m 5,000/7,000 m MF (19-34 kHz) MF (19-34 kHz) MF (19-34 kHz) Omni-Directional Semi-Directional Semi-Directional 187 dB 193 dB 199 dB 181 dB 187 dB 193 dB 193 dB 199 dB 205 dB 187 dB 193 dB 199 dB Better than 15 mm Better than 15 mm Better than 15 mm ± 0.5% full scale ± 0.5% full scale ± 0.5% full scale RS232 (9,600–115,200 baud) 24 or 48 V DC (± 10%) 24 or 48 V DC (± 10%) 24 or 48 V DC (± 10%) <300 mW <300 mW <300 mW <500 mW <500 mW <500 mW 6W 6W 6W <50 W <50 W <50 W Yes Yes No 30 Days 30 Days 30 Days Approx 6 Days at Approx 6 Days at Approx 6 Days at Low Power Low Power Low Power -5 to 40ºC -5 to 40ºC -5 to 40ºC -20 to 55ºC -20 to 55ºC -20 to 55ºC Anodised Aluminium Alloy Anodised Aluminium Alloy Anodised Aluminium Alloy and Plastics and Plastics and Plastics Dimensions; Diameter x Length 93 mm x 499 mm 98 mm x 510 mm 98 mm x 510 mm Weights in Air/Water** 5.1/2.2 kg 7.0/3.5 kg 7.0/3.5 kg Options Remote, Cable Connected Transducer None (See Separate Datasheet). *TEE – WBv2+ signals are 4x the duration of Sonardyne tone signals (WBv1 & WBv2 are 2x). The TEE figure shows the operational performance when comparing wideband and tone systems. **Estimated Weights. Specifications subject to change without notice - 06/2015