CAS Ami
CAS Ami 2

Service, Repair and Maintenance – CAS Ami Infant Central Apnea/Heart Rate Monitors

Repair and Maintenance Services

Product Description

Power Supply – The Ami and Ami Plus monitors can be connected to a power supply with AC voltages from 95 to 132 VAC, 60 Hz. The Ami and Ami Plus monitors can be configured for AC voltages of 220VAC, 50 Hz.
NiCd Battery – Rechargeable NiCd (nickel cadmium) battery. When the monitor is connected to an electrical outlet, the internal NiCd battery charges. The battery charges fully within five hours. A fully charged battery will work for up to 20 hours before needing to be recharged depending on pattern of usage and maintenance.
Lithium Cell – Nonrechargable lithium cell. The lithium cell is rated at 3. 6 volts, 1500 mA-hours. The lithium cell provides data memory retention for up to four years from the date of manufacture when the NiCd battery is kept charged. The lithium cell provides data memory retention for up to six months from the date of manufacture when the voltage of the NiCd battery is less than the voltage of the lithium cell.
Fuse – Two 250 V, 1A, 5 x 20 mm, slow blow.
Monitor Type – Impedance type infant respiratory/ heart rate monitor
Detection Signal – 76. 8± 5 KHz
Maximum Patient Current Leakage – Chassis to Ground: < 15 µA Patient leads to Ground: < 10 µA
Heartbeat Detection – 0.2 mV–5 mV, 30– 265BPM
Tall T-wave Rejection – 1.2 mV max
Respiration Detection – 0.5 – 5.0 Ω (10 or 150 BPM, Base impedance ≤ 1500 Ω 0.4 – 5.0 Ω (15 or 120 BPM, Base impedance ≤ 1500 Ω 0.3 – 5.0 Ω (20 or 90 BPM, Base impedance ≤ 1500 Ω 0.2 – 5.0 Ω (30– 75 BPM, Base impedance < 1000 Ω 0.3 – 5.0 Ω (30– 75 BPM, Base impedance ≤ 1500 Ω
Rejection – Cardiogenic artifact, all impedance changes less than 0.1 Ω, and baseline overshoot due to a large sigh before the onset of apnea

Front Panel:
Indicators
Normal Operation – RESPIRATION — Green LED indicates that the monitor has detected a breathing effort. HEARTBEAT — Green LED indicates that the monitor has detected a heartbeat. CHARGING — Green LED indicates that power is being supplied from an AC outlet and the battery is being charged.
Human Alarm Events – APNEA — Red LED indicates an episode of central apnea. HEART FAST — Red LED indicates a Tachycardia event. HEART SLOW — Red LED indicates a Bradycardia event.
Equipment Alarm Event – LOOSE LEAD — Red LED indicates that a lead is loose and needs to be adjusted. SERVICE — Red SERVICE LED flashes at a rate of once per second indicating the monitor caution alarm has been activated. A constant SERVICE LED with an audible alarm indicates that the monitor has failed its self test. The SERVICE LED flashes once every five seconds for the failure of one of the audible alarms. LOW BATTERY — Red LED indicates that the battery needs to be recharged or replaced. MEMORY FULL — Red LED indicates that the memory capacity of the monitor is full or has been corrupted.

Controls:
Power – Allows for the monitor to be turned on and off.
Reset – Allows for the clearing of human alarm indicators after the condition has been corrected. Used with the “Power” button to turn the monitor off. Activates the signal quality indicator. Mutes the Battery Low caution alarm.
Inputs:
Patient Connector – Three socket locking connector, with sockets for RA, RL, and LA connections. This input does not have pacemaker pulse rejection, electrosurgery, diathermy or defibrillator protection.
Patient Cable – 01-05-0429

Back Panel:
Inputs:
Power Entry Module – EIA dual fuse power entry module. Provides connections for hot, neutral, and earth grounded conductors. The receptacle is rated for both 120 VAC and 220 VAC, 50/ 60 Hz. The receptacle incorporates fuses in the hot and neutral lines which are dealer serviceable.
25 Socket Sub-D Connector – RS-232 signals— TDX pin 2, RXD pin 3, Gnd pin 7, CTS pin 5, DSR pin 6, DCD pin 8 Heartbeat detection pin 19 Respiratory effort detection pin 24 Signal ground pin 25 Remote Alarm pin 21 Aux Channel 1 input pin 23: 0 to 1 volt input Aux Channel 2 input pin 22: 0 to 1 volt input Aux Channel 3 input pin 18: 0 to 1 volt input
Output:
Remote Alarm Jack – Sub-miniature phone jack: Alarm off < 1 volt, Alarm on > 6 volts.

Bottom Panel:
Indicator Controls – Liquid crystal display
Mode Button – Selects between modes for setting time, alarm limits, or event log limits.
Enter Button – Selects various functions within time, alarm limit, and event log limit modes.
Up/ Down Arrow Keys – Used to increase/decrease values for time, alarm limits, or event log limits.

Audible Alarms:
Intensity – 85 dB(A) @ 1 meter — 2900 ± 500Hz
Human Alarms – Once per second for 120 mS; continuous audible alarm for the duration of the event.
Equipment Alarms – Continuous audible alarm for the duration of the event (except for LOW BATTERY)
Low Battery – Caution: Once per minute. Warning: Twice per second for 120mS
Monitor Caution – Once per minute

Alarm Limits:
Apnea – a 10 to 30 seconds in increments of 5 seconds
Bradycardia – 40 to 130 BPM in increments of 5 BPM and 5 second delay option
Tachycardia – 125 to 250 BPM in increments of 25 BPM and OFF

Event Log Limits:
Apnea – 10 to 30 seconds in increments of 5 seconds
Bradycardia – 40 to 130 BPM in increments of 5 BPM and 5 second delay option
Tachycardia – 125 to 250 BPM in increments of 25 BPM and OFF
O2 Saturation – 50 to 95% in increments of 5%

Dimensions – 2.45″ H x 9.15″ W X 7.27″ D (6.2cm x 23.2 cm x 18.5cm)
Weight – Approximately 3.5 lbs

Patient Cable:
Length – About 9 feet (approximately 2. 7 meters)
Type – Three-conductor, shielded

Environment:
Operating – 5°C to 40°C (41°F to 104°F) RH 15% to 95%, non-condensing
Storage -20°C to 60°C (-40°F to 140°F) RH up to 95% When moving the unit from a storage location, wait at least one hour prior to use to allow the unit to adjust to room temperature.

Source = http://www.casmed.com/files/pdfs/AmiClinician21020116-R04-2.pdf
Power Supply – The Ami and Ami Plus monitors can be connected to a power supply with AC voltages from 95 to 132 VAC, 60 Hz. The Ami and Ami Plus monitors can be configured for AC voltages of 220VAC, 50 Hz.
NiCd Battery – Rechargeable NiCd (nickel cadmium) battery. When the monitor is connected to an electrical outlet, the internal NiCd battery charges. The battery charges fully within five hours. A fully charged battery will work for up to 20 hours before needing to be recharged depending on pattern of usage and maintenance.
Lithium Cell – Nonrechargable lithium cell. The lithium cell is rated at 3. 6 volts, 1500 mA-hours. The lithium cell provides data memory retention for up to four years from the date of manufacture when the NiCd battery is kept charged. The lithium cell provides data memory retention for up to six months from the date of manufacture when the voltage of the NiCd battery is less than the voltage of the lithium cell.
Fuse – Two 250 V, 1A, 5 x 20 mm, slow blow.
Monitor Type – Impedance type infant respiratory/ heart rate monitor
Detection Signal – 76. 8± 5 KHz
Maximum Patient Current Leakage – Chassis to Ground: < 15 µA Patient leads to Ground: < 10 µA
Heartbeat Detection – 0.2 mV–5 mV, 30– 265BPM
Tall T-wave Rejection – 1.2 mV max
Respiration Detection – 0.5 – 5.0 Ω (10 or 150 BPM, Base impedance ≤ 1500 Ω 0.4 – 5.0 Ω (15 or 120 BPM, Base impedance ≤ 1500 Ω 0.3 – 5.0 Ω (20 or 90 BPM, Base impedance ≤ 1500 Ω 0.2 – 5.0 Ω (30– 75 BPM, Base impedance < 1000 Ω 0.3 – 5.0 Ω (30– 75 BPM, Base impedance ≤ 1500 Ω
Rejection – Cardiogenic artifact, all impedance changes less than 0.1 Ω, and baseline overshoot due to a large sigh before the onset of apnea

Front Panel:
Indicators
Normal Operation – RESPIRATION — Green LED indicates that the monitor has detected a breathing effort. HEARTBEAT — Green LED indicates that the monitor has detected a heartbeat. CHARGING — Green LED indicates that power is being supplied from an AC outlet and the battery is being charged.
Human Alarm Events – APNEA — Red LED indicates an episode of central apnea. HEART FAST — Red LED indicates a Tachycardia event. HEART SLOW — Red LED indicates a Bradycardia event.
Equipment Alarm Event – LOOSE LEAD — Red LED indicates that a lead is loose and needs to be adjusted. SERVICE — Red SERVICE LED flashes at a rate of once per second indicating the monitor caution alarm has been activated. A constant SERVICE LED with an audible alarm indicates that the monitor has failed its self test. The SERVICE LED flashes once every five seconds for the failure of one of the audible alarms. LOW BATTERY — Red LED indicates that the battery needs to be recharged or replaced. MEMORY FULL — Red LED indicates that the memory capacity of the monitor is full or has been corrupted.

Controls:
Power – Allows for the monitor to be turned on and off.
Reset – Allows for the clearing of human alarm indicators after the condition has been corrected. Used with the “Power” button to turn the monitor off. Activates the signal quality indicator. Mutes the Battery Low caution alarm.
Inputs:
Patient Connector – Three socket locking connector, with sockets for RA, RL, and LA connections. This input does not have pacemaker pulse rejection, electrosurgery, diathermy or defibrillator protection.
Patient Cable – 01-05-0429

Back Panel:
Inputs:
Power Entry Module – EIA dual fuse power entry module. Provides connections for hot, neutral, and earth grounded conductors. The receptacle is rated for both 120 VAC and 220 VAC, 50/ 60 Hz. The receptacle incorporates fuses in the hot and neutral lines which are dealer serviceable.
25 Socket Sub-D Connector – RS-232 signals— TDX pin 2, RXD pin 3, Gnd pin 7, CTS pin 5, DSR pin 6, DCD pin 8 Heartbeat detection pin 19 Respiratory effort detection pin 24 Signal ground pin 25 Remote Alarm pin 21 Aux Channel 1 input pin 23: 0 to 1 volt input Aux Channel 2 input pin 22: 0 to 1 volt input Aux Channel 3 input pin 18: 0 to 1 volt input
Output:
Remote Alarm Jack – Sub-miniature phone jack: Alarm off < 1 volt, Alarm on > 6 volts.

Bottom Panel:
Indicator Controls – Liquid crystal display
Mode Button – Selects between modes for setting time, alarm limits, or event log limits.
Enter Button – Selects various functions within time, alarm limit, and event log limit modes.
Up/ Down Arrow Keys – Used to increase/decrease values for time, alarm limits, or event log limits.

Audible Alarms:
Intensity – 85 dB(A) @ 1 meter — 2900 ± 500Hz
Human Alarms – Once per second for 120 mS; continuous audible alarm for the duration of the event.
Equipment Alarms – Continuous audible alarm for the duration of the event (except for LOW BATTERY)
Low Battery – Caution: Once per minute. Warning: Twice per second for 120mS
Monitor Caution – Once per minute

Alarm Limits:
Apnea – a 10 to 30 seconds in increments of 5 seconds
Bradycardia – 40 to 130 BPM in increments of 5 BPM and 5 second delay option
Tachycardia – 125 to 250 BPM in increments of 25 BPM and OFF

Event Log Limits:
Apnea – 10 to 30 seconds in increments of 5 seconds
Bradycardia – 40 to 130 BPM in increments of 5 BPM and 5 second delay option
Tachycardia – 125 to 250 BPM in increments of 25 BPM and OFF
O2 Saturation – 50 to 95% in increments of 5%

Dimensions – 2.45″ H x 9.15″ W X 7.27″ D (6.2cm x 23.2 cm x 18.5cm)
Weight – Approximately 3.5 lbs

Patient Cable:
Length – About 9 feet (approximately 2. 7 meters)
Type – Three-conductor, shielded

Environment:
Operating – 5°C to 40°C (41°F to 104°F) RH 15% to 95%, non-condensing
Storage -20°C to 60°C (-40°F to 140°F) RH up to 95% When moving the unit from a storage location, wait at least one hour prior to use to allow the unit to adjust to room temperature.

Source = http://www.casmed.com/files/pdfs/AmiClinician21020116-R04-2.pdf