RNK RNK-BT PRECORDIAL AMPLIFIER-BLUETOOTH User Manual

RNK Products, Inc. PRECORDIAL AMPLIFIER-BLUETOOTH Users Manual

Users Manual

RNK Products, Inc.  1   PA/BT Electronic Stethoscope Operation  1.  Introduction The Precordial Pickup (PP) with chest piece head and the Bluetooth Piezo Precordial Amplifier (PA/BT) comprise an electronic stethoscope to provide amplified auscultation sounds to a Bluetooth headset or to a set of headphones.                  2.  Operation with Headset Plug a PP with chest piece head into the Chest Piece jack of the PA/BT and plug a headset into the Headset jack.  The PA/BT detects the presence of the PP and automatically turns ON.  The PA/BT amplifies the auscultation signal and presents it to the headset. When finished using the PA/BT, unplug the PP to turn it Off.  3.  Operation with Bluetooth Headset Plug  the  PP  into  the  Chest  Piece  jack  of  the  PA/BT.    The  PA/BT  detects  the  presence  of  the  Chest  Piece  and automatically turns ON.  Before operating with a Bluetooth headset, the PA/BT must be paired with that Bluetooth headset.  The PA/BT can only be paired with one Bluetooth headset at a time.  To pair with a new Bluetooth  headset, the previous pairing in the PA/BT is  first deleted  by depressing the Reset button accessed through the small hole in the front panel of the PA/BT.  This will cause the green light on the front panel of the PA/BT to blink rapidly.  While  the green light on the  PA/BT is blinking rapidly, put the Bluetooth headset  in  pairing  mode  following the directions provided with the Bluetooth headset.  (For the THT-39 Bluetooth headset, this is accomplished by starting with the headset Off, then holding the button on the front of the unit down for about 8 seconds until the blue light stays On.  For the THT stereo Bluetooth headset, this is accomplished by starting with the headset Off, then holding the Power/Connect button on the right ear piece down for about 5 seconds until the blue and red lights alternately flash.)  Once pairing  is completed, the green  light  on  the  PA/BT  will blink slowly.   Following the  instructions provided with  the  Bluetooth  headset,  establish  a  Bluetooth  audio  connection  with  the  PA/BT.    (For  THT-39  Bluetooth headset, this may be done automatically, but if not, press and release the button on the front of the unit.  For the THT stereo  Bluetooth  headset,  this  is  accomplished  by  pressing  and  releasing  the  Power/Connect  button.)    Once connecting and transmitting, the green light on the PA/BT will stay steadily On.  Once a Bluetooth audio connection is established, it is possible to break that audio connection while maintaining the background Bluetooth connection.  For the THT-39 and stereo Bluetooth headsets, is done by pressing the Connect button on the Bluetooth headset.  When the audio connection is broken in this state, the green light on the PA/BT Chest Piece  Headset PP with Chest Piece Head Headset PA/BT   Bluetooth Headset
RNK Products, Inc.  2 will blink slowly with a double flash.  Re-establishing the audio connection from the Bluetooth headset causes the green light on the PA/BT to light steadily again.  When  finished  using  the  PA/BT,  unplug  the  PP  to  turn  it  Off  and  turn  the  Bluetooth  headset  Off  following  the directions  provided  with  the  Bluetooth  headset.   (For  the THT-39  Bluetooth  headset,  this  is  done  by holding the main button until the red light flashes.  For the THT stereo Bluetooth headset, this is done by holding the Connect button down until the red and blue lights flash.)  4.  Auscultation Whether through the cabled headset or through the Bluetooth headset, an auscultation exam  may be conducted by placing the chest piece at the points of interest and listening via the headset.  While holding the chest piece during an auscultation exam, minimize finger movement to avoid finger noise.  When using a Bluetooth headset, don’t set the gain set too high to avoid distortion due to overdriving the Bluetooth amplifier.    Use  the  Bluetooth  headset  volume  controls  to  set  the  volume  to  a  level  that  allows  the  auscultation sounds to be clearly heard.  5.  Battery Conservation When not in use, unplug the PP from the PA/BT to conserve the batteries.  6.  Battery Replacement Slide  back  the  battery  cover  on  the  backside  of  the  PA/BT  to  expose  the  two  AAA  batteries.    Remove  the  old batteries and put two new AAA batteries in their place being careful to align the polarity of the batteries as shown in the diagram in the battery compartment.  Put the battery cover back in place sliding it shut.  7.  Cleaning Clean the PP and chest piece and the PA/BT by wiping them with a moist cloth, alcohol or a sanitizing towelette.  8.  Specifications Frequency Range is 20 Hz – 2,000 Hz. Two AAA Batteries are used in the PA/BT.  Normal use for this product is at an ambient temperature range of +10 to +40C, a relative humidity range of 30% to 75%, an atmospheric pressure range of 700 hPa to 1,065 hPa.  It may be transported and stored at temperatures from 0C to 50C.  Changes or modifications not expressly  approved by RNK Products could void the user’s authority to operate this equipment.  For questions or comments, contact RNK Products, Inc., 12700 Diamond Drive, Burnsville, MN 55337

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