Summary of Contents for SR Instruments SR Scales SR241
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Model SR241 Portable Infant/Adult Scale Service Manual Part No. MAN241_201006 Page 1 of 14 by S Instruments, Inc. Portable Infant / Adult Scale Operating and Service Manual SInstruments, Inc. 600 Young Street, Tonawanda, NY 14150 Tel: 716-693-5977 Fax: 716-693-5854 URL: www.srscales.com Copyright 2020 SInstruments, Inc.
Model SR241 Portable Infant/Adult Scale Service Manual Part No. MAN241_201006 Page 2 of 14 TABLE OF CONTENTS TABLE OF FIGURES ........................2 PACKING CHECKLIST – MODEL SR241 ..................3 PACKING CHECKLIST – MODEL SR241SO ................3 ASSEMBLY............................4 REPLACEMENT PARTS AND ACCESSORIES ................4 SYSTEM DESCRIPTION AND INTENDED USE ...............4 SYSTEM DESCRIPTION AND INTENDED USE (CONT’D) ...........5 STORAGE ............................5 CLEANING AND DISINFECTING ....................6...
Model SR241 Portable Infant/Adult Scale Service Manual Part No. MAN241_201006 Page 3 of 14 PACKING CHECKLIST – Model SR241 Portable Infant / Adult Scale DESCRIPTION QUANTITY SCALE BASE 1 ea INFANT CRADLE 1 ea 9 VOLT BATTERY 1 ea CERTIFICATE OF CALIBRATION 1 ea MANUAL...
Model SR241 Portable Infant/Adult Scale Service Manual Part No. MAN241_201006 Page 4 of 14 ASSEMBLY STEP 1: Unpack the scale system and check parts against the PACKING CHECKLIST. If there are any missing or damaged parts, call the Service Hotline at: 1-800-654-6360. STEP 2: Insert the 9-volt battery.
Model SR241 Portable Infant/Adult Scale Service Manual Part No. MAN241_201006 Page 5 of 14 SYSTEM DESCRIPTION and INTENDED USE (Cont’d) INTENDED USE The SR241 Portable Infant/Adult Scale is a unique portable scale system that offers the versatility of being able to weigh infants, toddlers, and adults on one lightweight and weather resistant system.
Model SR241 Portable Infant/Adult Scale Service Manual Part No. MAN241_201006 Page 6 of 14 CLEANING and DISINFECTING CLEANING To clean the display / user interface and other scale contact areas: Use a soft cloth dampened with water and mild detergent to clean scale surfaces. ...
Model SR241 Portable Infant/Adult Scale Service Manual Part No. MAN241_201006 Page 7 of 14 SPECIFICATIONS MAXIMUM WEIGHT Infant: 44 lb (20 kg) CAPACITY Adult: 400 lb (181 kg) Infant Cradle: 22 in x 12.5 in (55 cm x 32 cm) DIMENSIONS Adult Platform: 12 in x 14 in (31 cm x 36 cm)
Model SR241 Portable Infant/Adult Scale Service Manual Part No. MAN241_201006 Page 8 of 14 BUTTON FUNCTIONS Figure 2: SR241/SR241SO Label SYSTEM ZERO ZERO – ADULT MODE To zero for adult weigh: Press the large blue “ZERO” button. Display will read “0.0”. When patient is placed onto the scale, net weight will be displayed. ZERO –...
Model SR241 Portable Infant/Adult Scale Service Manual Part No. MAN241_201006 Page 9 of 14 BASIC SYSTEM OPERATION ADULT WEIGH STEP 1: Remove infant cradle from base. Place scale on hard smooth floor surface to ensure accurate data. STEP 2: Press the large blue “ZERO” button and wait for the display to indicate “0.0” STEP 3: Position patient on the platform.
Model SR241 Portable Infant/Adult Scale Service Manual Part No. MAN241_201006 Page 10 of 14 BATTERY REPLACEMENT REPLACING BATTERIES The display will read “LobAt” when battery is low and needs to be changed. STEP 1: (Figure 3) Turn the scale over and locate the battery cover.
Page 11 of 14 THEORY OF OPERATION SR Instruments patient weighing systems are digital scales. Strain-gauge force cells convert the force of an applied weight into an analog signal. This signal is amplified by an operational amplifier and converted to a digital signal by an analog to digital converter. The digital signal is transferred to a micro-controller where it is filtered, converted to appropriate units, and displayed on a liquid crystal display.
Model SR241 Portable Infant/Adult Scale Service Manual Part No. MAN241_201006 Page 12 of 14 CALIBRATION IMPORTANT CALIBRATION CHECK Qualified service personnel only should perform this procedure. Load cells have no user serviceable components and should not be tampered with for any reason. Re-calibration is generally not required, but should be verified periodically to ensure accuracy.
In no event shall SR Instruments, Inc. be liable for any subsequent or special damages. Any misuse, improper installation, or tampering shall void this warranty.
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Model SR241 Portable Infant/Adult Scale Service Manual Part No. MAN241_201006 Page 14 of 14 By SInstruments, Inc. Precision & Technology in Perfect Balance SInstruments, Inc. 600 Young Street, Tonawanda, NY 14150 Tel: 716-693-5977 Fax: 716-693-5854 URL: www.srscales.com Copyright 2020 SInstruments, Inc. email: sri@srinstruments.com...
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