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8. To check manual activation of the full alarm, push and

HOLD the alarm button on the front of the unit.

9. Reset the Alarm. Press RESET (yellow) button 2 times

within approximately 1 second.

10. Stand motionless until the pre-alarm sounds. Shake

unit to reset the alarm.

11. If the ICM Tx Unit passes these functional checks,

complete all remaining SCBA donning steps in the
SCBA user’s instruction manual.

12. Disconnect the second stage regulator from the face-

piece.

13. Close the cylinder valve fully.
14. Slowly crack the bypass valve on the second stage

regulator to bleed off pressure until the ICM Tx Unit
pressure reading drops below the following values:

a. 530psig - approximately (2216psi system),
b. 750psig - approximately (3000psi System),
c. 1050psig - approximately (4500psi system)

A single flashing RED LED should be displayed in the
Nightfighter Heads-Up Display System Receiver at the
appropriate pressure listed above. The Audi-Larm will
ring and the ICM Tx Unit will sound and flash a red
light at the appropriate pressure listed above.

15. When the pressure falls below 200psig, turn the ICM

Tx Unit off (Sleep Mode) by pressing the RESET (yel-
low) button 2 times in rapid succession.

USING THE ICM TX UNIT

11

TAL 709 (L) Rev. 4 - 10058881

Summary of Contents for ICM Tx

Page 1: ...Display System which integrates with the SCBA These instructions in addition to the instructions supplied with the SCBA must be carefully read and followed by all persons who use or maintain this prod...

Page 2: ...epiece Note The NightFighter Heads Up Display can only be used with an Ultra Elite Facepiece 2 The NightFighter Heads Up Display consists of three 3 separate assemblies Bracket assembly attached to an...

Page 3: ...nation of batteries from dif ferent manufacturers will affect the performance of unit and void the Intrinsic Safety Approval Intrinsically Safe Rating The NightFighter Heads Up Display System and ICM...

Page 4: ...4 TAL 709 L Rev 4 10058881 NOTES...

Page 5: ...he facepiece which displays the air cylinder pressure in one quarter cylinder increments by an LED light pattern See chart 1 Assembly of Receiver to Facepiece Bracket With the facepiece laying on its...

Page 6: ...6 TAL 709 L Rev 4 10058881 NOTES...

Page 7: ...m the unit o The center lighted ALARM button green red acti vates the full alarm mode with or without air pres sure o The top MODE button green will refresh the receiv er display set the receiver to c...

Page 8: ...8 TAL 709 L Rev 4 10058881 NOTES...

Page 9: ...Pressure Full Alarm with or without Pressure Deactivation of Full Alarm Deactivation of PreAlarm with Shake or move Unit Low Battery Thermal Alarm Activation see Thermal Alarm Activation Curve Redunda...

Page 10: ...trinsic Safety Approval is void Failure to follow this warning can result in serious personal injury or death Before using the ID tag inspect for damage or cracks in the case If damage is found discar...

Page 11: ...he bypass valve on the second stage regulator to bleed off pressure until the ICM Tx Unit pressure reading drops below the following values a 530psig approximately 2216psi system b 750psig approximate...

Page 12: ...NOTES 12 TAL 709 L Rev 4 10058881...

Page 13: ...injury or death Actual time remaining may be less than the calculated time displayed Increases in breathing rate may reduce remaining time more than expected Use time indica tor as general guide only...

Page 14: ...sure to tighten the battery cover screws enough to provide adequate compression on the battery cover gasket to prevent dirt and moisture from entering the battery compart ment A torque of 6 in lbs is...

Page 15: ...for missing screws or loose covers c Check for signs of leaking covers or water retention in the case d Check rubber cover for damage e Check for damaged or missing buttons on the unit f Check for any...

Page 16: ...cover 4 Before replacing the battery cover be sure that the rubber cover on the ICM Tx Unit is properly engaged with the plastic housing The rubber cover has barbs that hold it firmly against the plas...

Page 17: ...transfilling hose assembly or fittings other than those supplied by MSA specifically for the Quick Fill System Use of any other transfilling hose assembly and or fitting may result in serious personal...

Page 18: ...System hose to the SCBA c Remove the rubber dust cap from the male inlet fit ting on the SCBA Be sure that the cylinder valve is fully opened d Remove the rubber dust cap from the female fitting on th...

Page 19: ...he male Quick Fill System fitting d Push the female fittings on to the male fittings until they click in place Pull on the hose to be sure it snapped in place If serious leakage is noticed from either...

Page 20: ...NOTES 20 TAL 709 L Rev 4 10058881...

Page 21: ...emblies 485331 802687 802688 802689 802690 and 48332 for filling cylinders in IDLH atmospheres DO NOT Transfill be a Donor using a 3000psi URC Assembly The 3000psi URC Assembly has a check valve that...

Page 22: ...either female fitting or along the hose depressurize the hose and correct the prob lem Such leakage can result in increased fill time 2 To attach the Quick Fill System hose to the URC Assembly a Remo...

Page 23: ...c Quickly replace the protective dust cap on the URC Assembly male regulator fitting This will form a redundant seal d Open the cylinder valve and return to fresh air immediately The dust cover preven...

Page 24: ...eration and instructions manual PN 10023638 for additional war ranty information For a copy of the complete warranty or for information on submitting a warranty claim write to MSA Customer Service Dep...

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