Philips Joey Dosimeter User manual

Joey Dosimeter
Instructions for Use
Description
The Joey Dosimeter is a wide-band spectroradiometer used in neonatal phototherapy.
The response curve of the sensor is between 425nm – 475nm with the peak at 450nm.
The meter measures irradiance in units of microwatts per centimeter per square
nanometer (µw/cm²/nm).
The Joey Dosimeter should only be used to measure the irradiance of the wavelengths
of blue light, 425nm – 475nm, and for no other purpose.
Use with Fiber Optic Phototherapy Devices
1. Placethephotosensorfacedownontheberopticpanel.
2. Press the “PUSH TO READ” button.
3. The Joey Dosimeter measuring device has one scale ranging from 00.0 to 99.0 µw/cm²/nm
(425-475). The light intensity (µw/cm²/nm) can be read directly from the digital display.
NOTE: A “LO BAT” signal will be displayed if the battery needs to be changed.
Output measurements should be taken whenever there is a condition that may affect the
phototherapy light output such as but not limited to:
1. Before each patient use
2. Operating hours of phototherapy device
3. Cleanliness of device’s optical system
4. Condition of light emitting pad.
Battery Information
The Joey Dosimeter operates with a single nine volt (9V) nonrechargeable battery.
Replacing the Battery
1. Remove the battery compartment cover on the lower back side of the Joey Dosimeter.
2. Lift out the 9-volt battery and replace it with a battery of the same type.
3. Replace the battery compartment cover.
Maintenance
Cleaning
Avoidgettingngerprints,grease,ordustonthesensor.Adirtysensorwillresultinfalselow
intensity readings. Clean the sensor with a water dampened lens paper and then wipe dry.
DO NOT immerse in water or apply any water or commercial cleaning agents directly
to the sensor and/or digital display, as this will cause damage to the device.

CAUTION: We recommend that the display window only be wiped using a soft damp cloth while
exerting very little pressure. Rubbing your ngers across the display window creates static electricity,
which can cause false readings.
Battery
A weak battery will be shown automatically on the digital display – LO BAT.
Recalibration
The Photobilirubin meter is calibrated against lamp standards traceable to the National
Institute of StandardsTechnology. It is calibrated to be +/-2% or +/- one digit (the least
signicantdigit).
Proper calibration can only be accomplished with a National Institute of Standards traceable
lamp standard. It is recommended that the instrument be returned to Philips Children’s
MedicalVentures for recalibration immediately if the meter has been physically abused (e.g.
dropped, jarred). Otherwise, the recommended time period for recalibration is ANNUALLY.
For recalibration of the Joey Dosimeter measuring device, contact Philips Children’s
MedicalVentures at 1-800-345-6443 or 724-387-4000.
Warranty
Children’s Medical Ventures, LLC. warrants that the Joey Dosimeter will, at the time of shipment,
be free and clear of all liens and encumbrances and will be free from defects in material and
workmanship for a period of one year from date of purchase from Children’s Medical Ventures,
LLC. Children’s MedicalVentures, LLC excludes all other warranties, whether express, implied or
statutory,includinganyimpliedwarrantiesofmerchantabilityortnessforaparticularpurpose.
In no event will Children’s MedicalVentures, LLC. be liable for any incidental or consequential
damages due to breach of this warranty or any other obligation.
1081026
HM 11/08/2010
Manufactured for:
Children’s Medical Ventures, LLC
191 Wyngate Drive
Monroeville, PA 15146 USA
Respironics Deutschland
Gewerbestrasse 17
82211 Herrsching, Germany
www.philips.com/childmed
English