Welch Allyn 420 Series - Maintenance; Cleaning; Blood Pressure Cuff

46 Welch Allyn
Maintenance
Welch Allyn will make available,upon request, circuit diagrams and other information which will
assist appropriately qualified technical personnel in repair of this device. Please reference “4200-
145E Service Manual” on page 50.
Cleaning
Spot Vital Signs
Wipe the Spot Vital Signs clean with a cloth slightly dampened with warm water and a mild
detergent solution. Never immerse the Spot Vital Signs in any type of fluid.
Occasionally clean the unit, as necessary, with appropriately diluted, non-staining disinfectant
solution. Use either 70% isopropyl alcohol, 10% chlorine bleach solution, or mild detergent in
water.
Note: Prevent water or other fluids from entering any connectors. Should this occur, dry the connectors
with warm air. Check all measurement functions for proper operation.
Every 3 months, inspect the temperature probe, SpO
2
Cord, and accessories for fraying or other
damage. Replace as necessary.
Do not sterilize or autoclave the Spot Vital Signs.
Blood Pressure Cuff
Clean the durable one-piece blood pressure cuff with a damp cloth, or wash in water with soap or
detergent. Before washing the cuff, remove the tube fitting(s), close off tubes with plugs
(available as accessory 5082-163), and place the hook and loop fasteners in the closed position.
After washing, allow the cuff to air dry. Re-assemble the tube fitting(s).
Disinfection
: You may use glutaraldehyde-type liquid disinfectants on the durable cuff. Prolonged
use of these disinfectants at full strength may cause discoloration of the white cuff markings.
Sterilization:
Do not use steam or heat to sterilize the cuff or tubing. If necessary, use gas ster-
ilization.
Do not press with a hot iron.
Cables and Pressure Hose
Wipe the cabling and pressure hose with a damp cloth moistened in a mild detergent solution.
Do not immerse hose.
Temperature Probe
Periodically clean the temperature probe by wiping with an alcohol-dampened cloth, or wipe with
warm water or properly diluted, non-staining disinfectant. Do not immerse the probe.
SpO
2
Sensor
Clean the reusable SpO
2
sensor with isopropyl alcohol solution, and sterilize it using ethylene
oxide (EtO), cold cycle. Do not immerse the sensor.