Operator’s Manual TM 920M PLUS Handheld Pulse Oximeter English/Español 1
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The information in this manual has been carefully checked and is believed to be accurate. In the interest of ongoing product development, Respironics reserves the right to make changes and improvements to this manual and the products it describes at any time, without notice or obligation. CAUTION: Federal law (USA) restricts this device to sale by or on the order of a physician. CAUTION: Read this entire manual carefully before using the 920M PLUS Pulse Oximeter. Respironics Georgia, Inc.
Guide to Symbols Front Panel Symbols Percent Oxygen Saturation Pulse Rate Pulse Quality (tricolor LED) Low Battery Front Panel Switches On/Standby Advance Other Symbols ATTENTION: See Instructions for Use Not for Continuous Monitoring (No Alarm for SpO2) C SSIFIE LA UL D C Type BF Applied Part (Patient isolation from electrical shock) US SN 1 UL Mark for Canada and the United States with respect to electric shock, fire, and mechanical hazards only in accordance with UL 2601-1 and CAN/CSA C22.
Table of Contents Precautions for Use ...................................................1 Indications for Use ................................................... 3 General Description ................................................. 4 Basic Operation ....................................................... 6 Installing and Using the Batteries ............................ 6 Important Notes about Battery Use ........................ 7 Recharging Batteries (NiMH Battery Pack Only) .. 7 Connecting the Sensor .
Precautions for Use Contraindications • Do not use the 920M PLUS in an MRI environment. • Do not use the 920M PLUS in situations where alarms are required. The device has no alarms. Warnings • Explosion hazard: Do not use the 920M PLUS in an explosive atmosphere. • The 920M PLUS is intended only as an adjunct in patient assessment. It • • • • • • • must be used in conjunction with other methods of assessing clinical signs and symptoms.
Cautions • The 920M PLUS Pulse Oximeter must be able to measure the pulse • • • • • • • • • • • • • • • 2 2 properly to obtain an accurate SpO2 measurement. Verify that nothing is hindering the pulse measurement before relying on the SpO2 measurement. Some nail polish colors (particularly dark shades) or artificial nails may reduce light transmission and affect SpO2 accuracy. Remove any nail polish or artificial nails before using the 920M PLUS. The 920M PLUS may not work on all patients.
Indications for Use The Respironics® 920M™ PLUS Handheld Pulse Oximeter is indicated for measuring and displaying functional oxygen saturation of arterial hemoglobin (SpO2) and pulse rate for adult, pediatric, and neonatal patients in hospital, ambulatory, home, and EMS (emergency medical service) environments. The 920M PLUS is intended for spot-checking and/or continuous monitoring when attended by a trained healthcare professional. 920M PLUS &&& &&& Figure 1. The Model 920M PLUS Pulse Oximeter.
General Description The 920M PLUS is a digital handheld pulse oximeter that displays numerical values for blood oxygen saturation and pulse rate (Figure 2). The 920M PLUS operates for approximately 100 hours continuously between alkaline battery replacements, or for 45 hours with the Rechargeable NiMH (Nickel Metal Hydride) Battery Pack (optional).
Because the 920M PLUS Handheld Pulse Oximeter has no patient alarms, frequent observation of SpO2 and pulse rate displays is required. C SSIFIE LA UL 4 X 1.5V AA IEC LR6 D C A sensor disconnect or malfunction is indicated by a lack of good pulse quality blinking and/or a dash to the left of the SpO2 value on the LED display. When adequate pulse signals are not received, the SpO2 and/or pulse rate numerical values will be replaced by dashes.
Basic Operation Installing and Using the Batteries The 920M PLUS Handheld Pulse Oximeter can be powered by 4 AA-size alkaline batteries (which will typically provide 100 hours of continuous operation), or by the optional Rechargeable NiMH Battery Pack. (See “Accessories” on page 22.) Respironics does not recommend the use of any other battery types. When the batteries are low, the low battery indicator (a yellow LED) will be steadily illuminated. (See Figure 2 on page 4.
Important Notes about Battery Use Four AA alkaline batteries provide the 920M PLUS with approximately 100 hours of continuous operation, while the Rechargeable NiMH Battery Pack provides the 920M PLUS with approximately 45 hours of continuous operation. Clock/calendar settings can significantly affect battery storage life. Batteries drain during storage, but they drain much more quickly when the unit’s clock/calendar functions are set. Refer to “Calendar and Clock Settings” on page 14 for more information.
Note: After removing batteries from the 920M PLUS, you will have approximately 2 minutes to replace them before losing data stored in memory and the clock and calendar settings. Replace the batteries immediately to avoid the loss of stored data. Battery Pack AA-size Alkaline Batteries Battery Orientation Figure 4. Installing batteries in the 920M PLUS. Connecting the Sensor Connect the pulse oximeter sensor to the top of the 920M PLUS as shown in Figure 5. Ensure that the sensor is firmly plugged in.
Power On/Standby Turn on the 920M PLUS by pressing and releasing the On/Standby switch . Turn off the unit by pressing and holding this switch for about 2 seconds. Refer to Figure 2 on page 4 for a detailed illustration of the switches and indicators. Refer to “Detailed Operation” on page 11 for detailed information about entering setup mode and on general operation of the 920M PLUS.
Monitoring Verify that the pulse oximeter sensor is properly positioned (on a finger, for example).
Detailed Operation Switches and Functions All functions of the 920M PLUS are controlled by the On/Standby and advance switches found on the front of the unit. Refer to Figure 2 on page 4 for an illustration of the switches and indicators. Power Turn on the 920M PLUS by presing and releasing the On/Standby switch on the front of the unit. Turn off the unit by pressing and holding this switch for about 2 seconds.
Making Selections in Setup Mode 1. Clr Upon entering setup mode, the displays will show no . (Memory clear and the default value “no”, the first setting.) Press and release the advance switch (or press and hold to quickly scroll) to change the value for this setting. Note: The menu starts at the current value stored in memory for the setting. The menu will cycle through the range of values for that setting. 2.
Clearing Memory Upon entering setup mode, “Clr” will appear in the SpO2 display, indicating the memory clear function. (Refer to “Setup Mode” on page 11.) This function allows you to delete all data currently stored in memory. Refer to Figure 6 below for a diagram describing the memory clear settings. To Choose Memory Clear Settings: 1. “Clr” may be set to “no” or “yes”.
Calendar and Clock Settings Note: Setting the month to “00” disables the calendar and clock functions and helps conserve battery life. Refer to Figure 7 below for a diagram describing the calendar and clock settings. Choosing Calendar and Clock Settings: 1. 2. 3. After selecting “no” in the memory clear settings, “y” will appear in the SpO2 display, indicating the calendar year setting. Make the year, month, day, hour, and minute selections. Use the advance switch to scroll through the values.
Displays and Indicators SpO2 Display The SpO2 display is the upper numeric display. (Identified by the %SpO2 symbol; see Figure 2 on page 4.) This 3-digit light-emitting diode (LED) display shows the current oxygen saturation percentage. Pulse Rate Display The pulse rate display is the lower numeric display. (Identified by the ♥ symbol; see Figure 2 on page 4.) This 3-digit LED display shows the pulse rate in pulses per minute.
Low Battery Indicator When the batteries are low, the low battery indicator, a yellow LED, will be steadily illuminated. (Identified by the symbol; see Figure 2 on page 4.) Replace the batteries as soon as possible. When the batteries are critically low, the low battery indicator will flash and the pulse oximeter will not operate. The digital displays will go blank, and the pulse quality indicator will blink yellow or red, but not green. Replace the batteries immediately.
Communications Serial Output The 920M PLUS provides real-time data output capability via the pulse oximeter sensor connector (a 9-pin Sub-D connector). The pulse oximeter sensor connector pin assignments are listed below.
Each time the 920M PLUS is turned on, the current time/date information (if the clock is set properly) is stored in memory to allow quick differentiation of recording sessions. Patient SpO2 and pulse rate are sampled and stored every 4 seconds. The oxygen saturation values are stored in 1% increments in the range of 0 to 100%. The stored pulse rate ranges from 18 to 300 pulses per minute.
Specifications 920M PLUS Specifications Oxygen Saturation Range (SpO2) 0 to 100% Pulse Rate Range 18 to 300 Pulses Per Minute Accuracy SpO2 (± 1 Standard Deviation)* 70 - 100% ± 2 digits for adults using Finger Clip Sensors 70 - 100% ± 3 digits for adults using Flex, Flexi-Form, or Reflectance Sensors 70 - 100% ± 4 digits using Ear Clip Sensors 70 - 95% ± 3 digits for neonates using infant or neonatal sensors Below 70% is not specified for all sensors Pulse Rate ± 3% ± 1 digit Measurement Wavelengths an
Service and Support CAUTION: The 920M PLUS is a precision electronic instrument and must be repaired by trained Respironics personnel only. Note: Any sign or evidence of opening the system, field service by non-Respironics personnel, tampering, or any kind of misuse or abuse of the system shall void the warranty in its entirety. The advanced digital circuitry within the 920M PLUS requires no periodic maintenance or calibration. Respironics does not recommend field repair of the 920M PLUS.
Warranty RESPIRONICS, INC., (Respironics) warrants to the purchaser, for a period of three years from the date of purchase, each Model 920M PLUS Handheld Pulse Oximeter exclusive of sensors, cables, and batteries. (Refer to the individual package inserts for specific warranty information for sensors, cables, and other accessories.
Accessories The following Respironics accessories function with the 920M PLUS: Part Number Description 1007355 Rechargeable NiMH Battery Pack 920MPC Charger Stand 1007334 Charger Stand Power Supply - Domestic 1007333 Charger Stand Power Supply - Universal Contact your distributor or Respironics Charger Stand Power Cord - Universal 1007332 Carrying Case (Blue) 1007474 Operator’s Manual for the 920M PLUS 1007473 Operator’s Manual for the Model 920MPC Charger Stand Pulse Oximeter Reusable Sens
Part Number Description Other Accessories Contact your distributor or Respironics Data retrieval software for Microsoft Windows 95/98/00 operating systems 954A Adult FlexiWrap Sensor Wrap 954I Infant FlexiWrap Sensor Wrap 954N Neonatal FlexiWrap Sensor Wrap 927 Patient Extension Cable (1 meter) 955 Patient Simulator 960 Finger Phantom® Pulse Oximeter Tester 1007476 Memory Cable (for use between the 920M PLUS and a PC running Microsoft Windows 95/98/00 operating systems) 1007478 Real-Time
Troubleshooting Guide Troubleshooting Guide Problem Possible Cause The unit will not turn on. The batteries are depleted. A dash appears in the left digit of the SpO2 display. Replace all 4 batteries. The batteries are installed incorrectly. Verify correct battery installation. Metal contact in battery compartment is missing or damaged. Contact Respironics Customer Support. A sensor fault exists. The sensor may have become dislodged from the 920M PLUS or from the patient.
Troubleshooting Guide (Continued) Problem Possible Cause You are unable to obtain Low patient pulse strength; a green blinking pulse or quality display. the sensor site is poorly perfused; or the sensor is not correctly positioned. The sensor is attached too tightly, or tape or other items are restricting the pulse quality at the sensor site. Possible Solution Reposition the sensor on the patient.
