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Summary of Contents for Contacta PRO Series
- Page 1 V22a / V34 / V34a March 2020...
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Page 2: Table Of Contents
27-29 Troubleshooting Notification Guide Technical Specification 32-34 Standards Contacta has a policy of continuous product development, therefore small specification changes may not be reflected in this manual. Images, labels, packaging, accessories and product colours are subject to change without notice. -
Page 3: Product Overview
V Series PRO range provides self-monitoring and email alerts, remote setup over local area networks, guided hearing loop setup to make installation simple, and excellent speech and music reproduction. Note: For large area hearing loop installation instructions, consult Contacta’s Large Area Hearing Loop Installation Guide. -
Page 4: Components
Components V22a NL4 Connector x2 5. V22a Hearing Loop Driver 2. Rubber Feet x4 6. Installation & User Guide 3. 3.5mm Euroblock Connector x2 7. Mounting Brackets 4. Signage 8. IEC Power Lead NL4 Connector 5. V34 Hearing Loop Driver 2. - Page 5 V34a NL4 Connector x2 5. V34a Hearing Loop Driver 2. Rubber Feet x4 6. Installation & User Guide 3. 3.5mm Euroblock Connector x2 7. Mounting Brackets 4. Signage 8. IEC Power Lead Plug type varies by country. Cable & Equipment: A length of loop cable determined by the loop design is also required.
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Page 6: Connections
Connections Rear Panel Connections Power Supply Input - The primary method of isolating the amplifier from the mains supply is to disconnect the mains plug. Ensure that the mains plug remains accessible at all times. Unplug the AC power cord from the AC outlet if the unit will not be used for several months or more. - Page 7 Connection Examples XLR to XLR (line) 2-CONDUCTOR SHIELDED CABLE TRS to XLR (line) 2-CONDUCTOR SHIELDED CABLE Unbalanced to XLR 2-CONDUCTOR SHIELDED CABLE XLR to Euroblock (balanced) 2-CONDUCTOR SHIELDED CABLE Unbalanced to Euroblock 2-CONDUCTOR SHIELDED CABLE...
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Page 8: Using The System
Using the System Startup V Series PRO drivers perform a series of tests when powered on. The Contacta logo will appear and driver will therefore take between 40 to 60 seconds to become active. Fault Detected If a fault is detected, the Attention symbol will appear on the top right... - Page 9 Front Panel Overview Display Screen - Displays menu and adjustment options. 2. Control Dial - Used to unlock the driver and make a range of system adjustments. Rotate the dial clockwise or counter-clockwise to make a selection, then press to confirm any adjustments.
- Page 10 Main Menu After being unlocked, the hearing loop driver will display the main menu.
- Page 11 Inputs Selecting Inputs from the main menu opens the following screen: Input A - Adjust connections to Input A. • Input B - Adjust connections to Input B. • Audio Time Delay - Sync audio across large distances to • compensate for latency.
- Page 12 Adjustment Level - Displays the input attenuation level (0db to • -47dB). Selecting this circle allows attenuation level adjustment. Signal Level - When optimum Adjustment Level has been achieved, • “Good” will display consistently (though peak levels may flash to “Low or “High”).
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Page 13: Guided Loop Setup
Begin the Setup Begin the Guided Loop Setup by selecting it from the driver’s main menu, and when prompted select “Yes” from the following screen: Note: For large area hearing loop cable installation instructions, consult Contacta’s Large Area Hearing Loop Installation Guide. - Page 14 “Signal On”: 3. Note the hearing loop’s field strength at 100Hz, 1KHz, and 5KHz using the Contacta Field Strength Meter (IL-CONTACTA-FSM) set at the 3rd octave band pass setting. Once completed, select “Continue” on the display to turn off the signal.
- Page 15 5a. If the values at 100Hz and 5KHz are within +/-3db of the value measured at 1KHz, this section is complete. Select “Continue”: 5b. If the driver has calculated that High Frequency Compensation is required, it will ask whether to apply this correction. Selecting “Yes”...
- Page 16 2. The following screen will be displayed, with a symbol on the top right indicating “Signal On”: 3. Note the hearing loop’s field strength at 1KHz using the Contacta Field Strength Meter (IL-CONTACTA-FSM) set at the 3rd octave band pass setting. Once this value has been noted, select “Continue”...
- Page 17 2. The following screen will be displayed, with a symbol on the top right indicating “Signal On”: 3. Record field strength at various locations in the hearing loop using the Contacta FSM set 1KHz 3rd octave band pass setting. These details will be required in Compliance Certificate documents. Then, select “Continue”.
- Page 18 Stage 4: Completion Select “Yes” when prompted by the following screen to complete the Guided Loop Setup to save settings:...
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Page 19: Manual Loop Setup
Begin Manual Loop Setup by selecting this option from the driver’s main menu. Note: For large area hearing loop cable installation instructions, consult Contacta’s Large Area Hearing Loop Installation Guide. Stage 1: High Frequency Compensation High Frequency Compensation is required when metal in the surrounding environment impacts the hearing loop’s signal quality. - Page 20 Stage 2: Loop Drive Turn on the driver’s internal 1KHz test signal generator by selecting “On” from the following screen. Once a green ‘Signal On’ symbol is displayed on the right, select “Continue”. Note: An external sine signal source can be connected if required. 2.
- Page 21 Note: If the driver current has been attenuated but the driver has been set up to not go above the maximum value (e.g. the 5.5A display above), then the ‘ATTN’ symbol will vanish when moving away from this screen. 3. If using a V34, manual loop setup is now complete. If using a V22a or V34a, select “Continue”.
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Page 22: Remote Monitoring
Remote Monitoring The driver’s user interface (display screen) can be accessed through a Local Area Network (LAN) when using a laptop or smartphone. This is to allow installers to minimize installation time by limiting the need to travel back and forth to a driver. To access the Remote Monitoring function through an external device, select Remote Monitoring from the main menu to open the following screen:... -
Page 23: Diagnostics
Diagnostics Selecting Diagnostics from the main menu opens the following screen: Loop Selecting Loop from the Diagnostics menu opens the following screen: • Loop inductance and resistance are values measured when the driver powers on. • Hearing loop impedance at 1.6KHz (“z@1.6KHz) is calculated from the measured inductance and resistance. - Page 24 Driver Selecting Driver from the Diagnostics menu opens the following screen: The following data in Driver is for information only: • Output enabled (Yes/No) • Heatsink temperature • Fan speed • Supply rail voltage Counters Selecting Counters from the Diagnostics menu opens the following screen: Counters logs the number of times these events have occurred in the lifetime of the driver:...
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Page 25: Service
Service Selecting Service from the main menu opens the following screen: Go to Idle Screen - The driver displays an idle screen. An unlock • code will not be required to make adjustments/change settings. Go to Idle Screen + Lock: The driver displays an idle screen. An •... -
Page 26: Save/Load Settings
Save/Load Settings Automatic Saving The driver’s internal save file is updated automatically at the file location of /etc/snapui/ whenever the driver is returned to the main menu screen. Saved settings have the following naming convention when being loaded to or from a USB: •... -
Page 27: System Updates
• Selecting “No” will overwrite the save file located on the USB with the driver’s newest save file. System Updates There are 2 types of system updates: • Software updates (see page 28) • Disk image updates (see page 29) Software updates require the following 4 files to be placed in the root (top-level/default) directory of a USB connected to the driver: •... - Page 28 Software Updates - USB Software updates can be run from a connected USB without any risk to the driver. Even if a USB is removed midway through an update, the device will restart while maintaining the previously installed version of the software.
- Page 29 Disk Image Updates - USB If the driver is low on memory, there will be a warning if a disk image update is attempted as the driver could be damaged if the USB is then removed mid-update. The user will be asked to confirm that they are aware of this risk.
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Page 30: Troubleshooting
2) Use a larger diameter cable. 3) Create a two-turn loop. 4) Use a higher voltage driver. Please contact your distributor (or Contacta if appropriate) if you are experiencing technical difficulties with the product. -
Page 31: Notification Guide
Notification Guide ATTN Signal On... -
Page 32: Technical Specification
Technical Specification V22a: Technical Data Line (optimised for -10dBV to 0dBv) 2 X line/microphone Audio Inputs inputs (switchable) XLR Microphone (12V phantom power via 680Ω or Euroblock optimised for levels above -45dBv) Outputs Voltage 2 x 22.66Vrms (64.09V pk-pk) 2 x 8Arms @ 1KHz (22.62A pk-pk) >1200 seconds Loop Outputs Output Current (20 minutes) - Page 33 Technical Specification V34: Technical Data Line (optimised for -10dBV to 0dBv) 2 X line/microphone Audio Inputs inputs (switchable) XLR Microphone (12V phantom power via 680Ω or Euroblock optimised for levels above -45dBv) Outputs Voltage 34Vrms (96.1V pk-pk) 12Arms @ 1KHz (33.94A) pk-pk >1200 seconds Loop Outputs Output Current (20 minutes)
- Page 34 Technical Specification V34a: Technical Data Line (optimised for -10dBV to 0dBv) 2 X line/microphone Audio Inputs inputs (switchable) XLR Microphone (12V phantom power via 680Ω or Euroblock optimised for levels above -45dBv) Outputs Voltage 2 x 34Vrms (96.1V pk-pk) 2 x 12Arms @ 1KHz (33.94A) pk-pk >1200 seconds Loop Outputs Output Current (20 minutes)
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Page 35: Standards
(2) this device must accept any interference received, including interference that may cause undesired operation. CAUTION: Changes or modifications not expressly approved by Contacta Systems LTD or an authorised partner could void the user’s authority to operate the equipment. - Page 36 Local dealer: UK & ROW US & Canada +44 (0) 1732 223900 +1 616 392 3400 sales@contacta.co.uk info@contactainc.com www.contacta.co.uk www.contactainc.com...
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