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SM1P Ex MANUAL ENGLISH IEC Controlled Document – modifications to this document must follow IEC Document Control Procedures. Document Revision: Date: Reference: IECEx126 AA.09 May 18, 2022...
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INTRODUCTION The SM1P/PW/B/DP/XBT Ex Series of Headsets is a state-of-the-art hearing protection (i.e., protects against harmful noise) communication system that allows you to retain situational awareness whilst remaining in full contact with your team via Short-Range technology, as well ® as two-way radio or cellular device via Bluetooth or wired connection.
WARNING The SM1P Ex must not be disassembled. In the event of a malfunction the unit should be switched off and returned to Sensear Pty Ltd. The battery is not user replaceable; the SM1P Ex must be returned to Sensear for battery replacement. Substitution of components may impair Intrinsic Safety.
ENTITY PARAMETERS The following entity parameters are for when SM1P Ex is used with SRCK61XXCCXX at the radio end of the interface cable. Entity parameter Value 8.4 V 0.15µF 0 µH ≥ Ci + Ccable ≥ Li + Lcable IECEx126 SM1P Ex Manual 4 Printed in Australia...
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MARKINGS The SM1P Ex contains the following markings: Hazardous location class and group and temperature class A scratch-resistant classification label is located at the top of the left-side earcup on the headset. Product model, number code and serial number A product model name, number and serial label are located at the top of the right-side earcup on the headset.
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HEADSET ANATOMY FIGURE 1 IECEx126 SM1P Ex Manual 6 Printed in Australia...
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Description Volume up button Volume down button Power button Hatch cover, for programming and charging Multi-function button (MFB) Headband* Ear cushions Microphones Headset cable 1.10 Headset connector Boom microphone 1.11 Mount - M5 Hex screw Connector - 2.5mm Audio jack 1.12 Inline PTT 1.13...
The SM1P Ex headset is designed to be worn with the headset sealing around the ears. Specific examples of how to fit the headset around the ears are covered in the next three pages. The fit does alter slightly depending on what style of brace is used - headband, Behind-the-Neck or mounted to a helmet directly.
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BEHIND-THE-NECK MOUNT FITTING INSTRUCTIONS Description Adjust Velcro strap so that the earmuff cups completely enclose the ears. The earmuff cushions should seal firmly against the head. For best results, remove all hair from under the ear cushion. Noise reduction will be adversely affected by anything that breaks the seal of the earmuff ear cushions.
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HEADBAND MOUNT FITTING INSTRUCTIONS Description Adjust the headband by pulling the center band out equally on both sides. Ensure no hair is inside the muff ear cushions. Fit the earmuffs over the ears ensuring a tight fit around the ears. Ensure the muff surrounds the ears.
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HELMET MOUNT FITTING INSTRUCTIONS Description Attach the adaptors to each side of the helmet by sliding them into the slots. Attach the earmuffs by sliding into the adaptors. Ensure the earmuff is firmly attached by lifting the arm up and down. Place the helmet on the head and adjust by sliding the earmuffs up and down.
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DUAL PROTECTION FITTING INSTRUCTIONS Locate the ear buds inside the ear cup. Place earmuff away from the ears while fitting the ear buds. Insert ear tips following the ear tip fitting instructions on next page. Place the earmuff back over the ears. Ensure the retractable, coiled cable is fully located within the ear cup.
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FOAM EAR TIP FITTING INSTRUCTIONS Compress the foam to form Ensure hands and foam tip Push the ear tip a cylindrical shape being are clean before insertion. careful not to crease the Place foam tip at an angle firmly over the plastic foam to plastic canal canal...
The volume control buttons can be used to raise or lower the audio level of mode. • **The default mode on power up can be programmed using the Sensear app. QUIET MODE: By pressing the power button, this toggles ‘Quiet mode’. Quiet mode only allows two-way radio communications to pass through the headset.
SETUP MODE: Setup mode enables a limited number of settings to be changed directly via the headset. This mode is separate from the normal headset operating mode. Some options will not be available if the product model does not support a feature or headset programming has removed the setup mode option.
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The headset needs to be powered down before it can be powered up into its normal operating mode. Changes will be saved upon powering off the headset from setup mode. Changing Short-Range region: Ensure you hear “Short-Range FM region”. Increment/decrement through regions 1, 2 or 3. (short) Region EIRP (uW)
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Changing Short-Range frequencies: Ensure you hear “Short-Range FM frequency”. Change frequency: (short) up = increment 0.1MHz, down = decrement 0.1MHz Change bank: (long) up = increment bank, down = decrement bank Note, frequency range is 88.1MHz to 107.9MHz (97.0 MHz for region 3). The frequency/bank last selected in the setup mode will be the frequency/bank used when Short- Range is turned on in normal operating mode.
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cycle through “low”, “medium” and “high” trigger (short) levels “low” is the most sensitive/easiest to trigger VOX and “high” is the least sensitive/hardest to trigger VOX. COMMUNICATING COMMUNICATING OVER TWO-WAY RADIO: Only approved two-way radio cables containing a certified IS barrier (SRCK61XXCCXX) may be used with SM1P Ex.
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COMMUNICATING OVER SHORT-RANGE: (short press) together to toggle Short-Range on / off. When on: Short-Range PTT Increment/decrement preset frequency bank (long) When the headset is powered off it remembers the last selected frequency bank and the Short- Range on/off state. Short-Range VOX: [See Operating the Headset - Setup Mode section for VOX setup information] If VOX is assigned to Short-Range, when Short-Range turns on, you will hear the Short-Range frequency announcement and then “VOX on”.
LISTENING TO FM RADIO: (short press) together to toggle FM radio on /off. Note, FM radio cannot be turned on while Short-Range is turned on and vice versa. When on: Scan up/down to the next FM radio. (long) When a Bluetooth phone call is entered, FM radio audio is muted. It will return when the call ends. When the headset is powered off it remembers the last tuned FM radio frequency and the FM radio on/off state.
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® : To transmit, use the radio’s PTT. For some select device, MFB will ® perform as a Bluetooth PTT (if Short-Range off). Contact Sensear representative for compatible devices. ® Bluetooth ® phone call: During a Bluetooth phone call, if two-way radio or Short-Range are ®...
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USER MAINTENANCE AND STORAGE This product may be adversely affected by certain chemical substances. Further information should be sought from the manufacturer. The headset contains replaceable cushions (Part #: SMHK0006 or SMHK0005). Cushions are recommended to be replaced every 3-6 months to maintain the appropriate hearing protection that the product is certified to.
Smart Muff Boom Microphone Wind Sock X5 SMPW0001 Wall Charger 5.5V 1.0A PRGTAB01 Programming Tablet Further information may be obtained from your Sensear representative, via the Sensear web site, or by emailing or writing to the address on this User Manual. IECEx126 SM1P Ex Manual...
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Plug the Sensear AC adapter into an appropriate power outlet. The socket must be easily accessible. Insert the cable end of the Sensear AC adapter into the DC power socket on the SM1P headset (located on the left-hand-side of the unit).
TECHNICAL SPECIFICATIONS Headband Behind-the-Neck Helmet Mount Weight 495g 428g 480g (17.46 oz.) (15.09 oz.) (16.93 oz.) Operating Non- Hazardous Environments: C to +60 C (-4 F to 140 temperature II 2G Ex ib IIC T4 Gb (-20 C ≤ Ta ≤ +40 II 2D Ex ib IIIC T155 C Db (-20 C ≤...
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Company Sensear Pty Ltd Address 197-199 Great Eastern Highway, Belmont, WA, Country Australia Telephone Number +61 8 9277 7332 http://www.sensear.com Email admin@sensear.com IECEx126 SM1P Ex Manual 28 Printed in Australia...
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