SRV711 Manual - SR Instruments, Inc.
Contents
1. SR Instruments Inc 600 Young Street Tonawanda NY 14150 Tel 716 693 5977 Fax 716 693 5854 URL www srscales com email sri srinstruments com Copyright 2015 SR Instruments Inc Model SRV711B Zoological Platform Scale System Operating and Service Manual SN No 1001 Part No MAN711B_ 150304 Page 7 of 14 BUTTON FUNCTIONS oy SR Instruments inc ZERO WEIGH Figure 3 SRV711 Display Label The ZERO button is used to zero the system before placing an animal onto the scale c system When pressed the display message will indicate PLEASE WAIT HANDS OFF Ensure that nothing is in contact with the scale system during this procedure The display will read WEIGHT 0 0 LB or KG The WEIGH button wakes up the display and shows the animal s weight if it should 8 Power Down before the weighing process is done The HOLD button freezes the displayed weight and stores it away in memory Press HOLD to store the weight into memory To recall last weight reading press HOLD LB KG MODE meee Weight data may be viewed in either pounds or kilograms Pressing the LB KG MODE Ib button allows the operator to toggle between the two readings Both pounds and kilograms kg are displayed in a resolution of 0 1 BASIC SYSTEM OPERATION SETTING SYSTEM ZERO Make sure scale is free and clear of any obstructions and press the ZERO button The displayed message will indicate2. ZERO PLEASE WAIT HANDS OFF PLEASE orm Ensure that nothing is in contact with the scale while zeroing the system In a few seconds the display will read WEIGHT 0 0 LB or KG Note It is recommended that the system be zeroed prior to each new weigh cycle After the scale has been set to zero position the animal on the scale The weight will be displayed in either pounds or kilograms Continued next page SR Instruments Inc 600 Young Street Tonawanda NY 14150 Tel 716 693 5977 Fax 716 693 5854 URL www srscales com email sri srinstruments com Copyright 2015 SK Instruments Inc Model SRV711B Zoological Platform Scale System Operating and Service Manual SN No 1001 Part No MAN711B_ 150304 Page 8 of 14 BASIC SYSTEM OPERATION Cont d Press the HOLD button once to lock the displayed reading and store it in memory as the last weight for recall later Press the WEIGH or ZERO button to start a new weigh cycle AUTO HOLD This mode is for animals unable to remain still for the weighing procedure It locks stores and displays the animals weight as soon as the WEIGH button is pressed once To enable this mode before zeroing the system press and hold the HOLD button for approximately eight 8 seconds until the display reads AUTO HOLD ENABLED To return to CONTINUOUS WEIGH mode when finished press and hold the HOLD button for approximately eight 8 se
3. 11 of 14 CALIBRATION con t STEP 2 Select two 2 known calibrated weights traceable to NIST NOTE The first weight should be at least 500 pounds half of the maximum scale capacity The second weight should be less than half of the first weight DO NOT USE barbells or uncalibrated weights STEP 3 Press the Hidden Cal Button 1 Figure 5 until FULL 1000 00 Lb is displayed Set the FULL value of the first selected calibrated weight Use Hidden Cal Button 2 to select the digit and Hidden Cal Button 1 to change digit Press HOLD to save changes STEP 4 Press the Hidden Cal Button 1 until HALF 500 00 Lb is displayed Set the HALF value of the second selected calibrated weight Use Hidden Cal Button 2 to select the digit and Hidden Cal Button 1 to change digit Press HOLD to save changes STEP 5 Press the Hidden Cal Button 1 until 3 Pt Calibration is displayed Press Hidden Cal Button 2 STEP 6 Zero the scale by removing all weight from the platform Press the Hidden Cal Button oy STEP 7 Place the HALF weight from Step 4 on platform Allow weight to stabilize Press Hidden Cal Button 2 Remove weight STEP 8 Place the FULL weight from Step 3 on platform Allow weight to stabilize Press Hidden Cal Button 2 Remove weight STEP 9 Press HOLD to save the calibration or WEIGH to exit without saving STEP 10 Switch the scale system out of the Calibra
4. Copyright 2015 SK Instruments Inc Model SRV711B Zoological Platform Scale System Operating and Service Manual SN No 1001 Part No MAN711B_ 150304 Page 13 of 14 WARRANTY TWO 2 YEAR LIMITED WARRANTY Each SRScalles system is manufactured with high quality components SR Instruments Inc warrants that all new equipment will be free from defects in material or workmanship under normal use and service for a period of two 2 years from the date of purchase by the original purchaser Normal wear and tear injury by natural forces user neglect and purposeful destruction are not covered by this warranty Warranty service must be performed by the factory or an authorized repair station Service provided on equipment returned to the factory or authorized repair station includes labor to replace defective parts Goods returned must be shipped with transportation and or broker charges prepaid SR Instruments Inc s obligation is limited to replacement of parts that have been so returned and are disclosed to SR Instruments Inc s satisfaction to be defective The provisions of this warranty clause are in lieu of all other watranties expressed or implied and of all other obligations or liabilities on SR Instruments Inc s part and it neither assumes nor authorizes any other person to assume for SR Instruments Inc any other liabilities in connection with the sale of said articles In no event shall SR Instruments Inc b
5. for periods longer than three 3 months remove the batteries To maintain proper operation of this instrumentation storage and transport conditions should not vary outside the following conditions Relative Humidity 0 to 85 Ambient Temperature 14 F to 122 F 10 C to 50 C SPECIFICATIONS MAXIMUM WEIGHT CAPACITY 1000 lb or 454 kg 36 in x 54 in x 3 in oe 91 4 cm x 137 2 cm x 7 6 cm DISPLAY TYPE 16 Character dot matrix LCD DISPLAY RESOLUTION 0 1 Ib or 0 1 kg 0 2 1 digits of displayed resolution for calibrated range ACCURACY AUTO ZERO One button operation AUTO POWER DOWN After 5 minutes Adjustable from 30s to 300s HOLD Temporarily stores displayed reading in memory LAST WEIGHT RECALL Press hold button to recall last stored displayed reading AVERAGING Automatic digital filter POWER SUPPLY Six 6 D cell batteries CALIBRATION Calibration is traceable to NIST standards Normal operating conditions for this product Ambient OPERATING CONDITIONS Temperature Range 40 F to 95 F 5 C to 35 C Relative Humidity Range 0 85 Avoid exposure to high pressure water or steam Storage and transport conditions should not vary outside STORAGE and the following conditions Relative Humidity 0 to 85 TRANSPORTATION Ambient Temperature 14 F to 122 F 10 C to 50 C Remove batteries if storing longer than three 3 months
6. 854 URL www srscales com email sri srinstruments com Copyright 2015 SK Instruments Inc Model SRV711B Zoological Platform Scale System Operating and Service Manual SN No 1001 Part No MAN711B_ 150304 Page 14 of 14 SRScalleg By SR Instruments Inc Precision amp Technology in Perfect Balance SR Instruments Inc 600 Young Street Tonawanda NY 14150 Tel 716 693 5977 Fax 716 693 5854 URL www srscales com email sri srinstruments com Copyright 2015 SK Instruments Inc
7. Model SRV711B Zoological Platform Scale System Operating and Service Manual SN No 1001 Part No MAN711B_ 150304 Page 1 of 14 SR 359 by SR Instruments Inc Remote Display Zoological Platform Scale System MODEL SRV711 Operating and Service Manual Serial Number 1001 SR Instruments Inc 600 Young Street Tonawanda NY 14150 Tel 716 693 5977 Fax 716 693 5854 URL www srscales com email sri srinstruments com Copyright 2015 SK Instruments Inc Model SRV711B Zoological Platform Scale System Operating and Service Manual SN No 1001 Part No MAN711B_150304 Page 2 of 14 TABLE OF CONTENT TABLE OP PIGUR ES adicauonndetniencq tie a PAR eivai b NUR UAR E UU REN RON EPRU HN QR ac vL UR OH ER 2 PACKING CHECKLIST MODEL SRV7 11 e eee eee eee eee eese te sene tastes snas toes eta sene tates eno toue 3 POSS DAA Di1 d Y 4 REPLACEMENT PARTS AND ACCESSORIES eese esee seen eene ee eene ta sens tasa tasses sos s tn so aeo 5 SYSTEM DESCRIPTION AND INTENDED USE eere eese eren enne en enne tn sns ta sens tn sens tuac 5 MAINTENANCE AND CLEANING nicis Xton iens REY CH RONDE CUM Erb Ye EUN CERE EQU OH GRE CIN CHR RENE EET EA 5 STORAGE AND TRANSPORTATION sciccsssvecsessesscasessscccosssssicessonscenssssansonsienseessasvorcnstonsconsatoasione 6 SPECIBICATINS 5 iePHPERRRAONE NE PEHE CERE EO DESEE EI ETE FREUE RUNS ERE
8. RE Evon pEi os ipsu DER EAR M PER 6 BUTTON FUNCTIONS P c 7 BASIC SYSTEM OPERA TION cicsisceascenscacccscesaesceassnsesenssenscsansacasnencodsessnsacecencdeacesanceacssacdetoosensaccades 7 BATTERY REPLACEMENT i ssisccsssavisisesscuscsspassaceasvecsesisassescepsocdanens skesunsebuasvajeonssongascasnasssnecunpaudes 8 THEORY OF OPERATION sisssisussssckecssis scassisvedsssiensiesss couseossusenseds susnosennsensonsiatdessibionossiensinssanecientie 9 CA LIBRA TION o 9 10 CALIBRATION C ONE suisaicacstnssiapiesacedvethencaesenanatscdascec tint oa a IE URL QNM ACER UER UM NBASIN YE UR DER UR 11 TROUBLESHOOTING ivintatesstisertiz E da ekM Dre e bvE N Et PE FEES E YEYXE RU PE PYE CEN ERLES CH FEVER EXE sss IN ko FERIAM AER 12 MARRANTY iisitindn etn WR IRURE NNI VIENI DEIN CREE UE HII IN TOI DIRMI 13 TABLE OF FIGURES IET 1 DAY eer Tr 4 Figure 2 Example Zoological Application ecce ecce ee eee eee eese eo sese see en s seas e ease eSs 4 Figure 3 SRV711 Display Label eese iota ione oo Pot EE sesnsessvesseesnessvenssveceeosounssevssensnensseeseess 7 Figure 4 Battery Compartment Cover and Screw eee eee ee eee e esee eren eee ee sete seta nest 8 Figure 5 Hidden Calibration Button Diagram 4 eee ee ee eere eee eee ee eere ee eene eto o seen aae 10 Figure 6 Display Board Calibrati
9. conds until the display reads CONTINUOUS WEIGH BATTERY REPLACEMENT WARNING DO NOT remove batteries while scale is on Allow scale to shut down naturally thru timing out This prevents possible voltage drain on the printed circuit board coin battery STEP 1 The display will read REPLACE BATTERIES STEP 2 Figure 4 Unscrew the panel screw on the Battery Compartment Cover and remove the battery compartment cover STEP 3 Remove and replace ALL 6 D cell batteries Refer to diagram on the Battery Compartment Cover STEP 4 Press the WEIGH button to confirm display is working STEP 5 Tightly screw cover down STEP 6 Zero the system c a Figure 4 Battery Compartment Cover and Screw SR Instruments Inc 600 Young Street Tonawanda NY 14150 Tel 716 693 5977 Fax 716 693 5854 URL www srscales com email sri srinstruments com Copyright 2015 SK Instruments Inc Model SRV711B Zoological Platform Scale System Operating and Service Manual SN No 1001 Part No MAN711B_ 150304 Page 9 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 un
10. e liable for any subsequent or special damages Any misuse improper installation or tampering shall void this warranty DAMAGED SHIPMENTS Title passes to purchaser upon delivery to Transportation Company Any claims for shortage or damage should be filed with the delivery carrier by purchaser RETURN POLICY All products being returned to SR Instruments Inc require a Return Goods Authorization number RGA To receive an RGA call our Technical Service Team at 716 693 5977 or toll free in the USA and Canada at 800 654 6360 When inquiry is made please supply model and serial numbers purchase order if the scale was bought on contract and reason for return Generally deleted damaged and outdated merchandise will not be accepted for credit A minimum restocking charge of 15 will be assessed on return of current merchandise All returns are to be shipped FREIGHT PREPAID to SR Instruments Inc 600 Young Street Tonawanda NY 14150 RESTOCKING FEE e 15 fee for any scale that has been opened and used e 10 fee for any scale returned that has been ordered incorrectly or refused delivery with no model change e 5 fee if an error in ordering has been made and a different model exchanged e No fees will be charged if the scale is returned because of an error on the part of SR Instruments Inc e Noreturns accepted after 60 days SR Instruments Inc 600 Young Street Tonawanda NY 14150 Tel 716 693 5977 Fax 716 693 5
11. e strategically placed to ensure an accurate representation of the animal s weight The animal s weight is displayed on a 16 character dot matrix LCD With a push of a button weight data may be viewed in either pounds or kilograms with a displayed resolution of 0 1 Ib or 0 1 kg for each INTENDED USE The SRV711 Remote Display Zoological Platform Scale System is designed for use as a WARNING weighing system for animals up to 1000 pounds DO NOT EXCEED Segoe esas MAXIMUM WEIGHT LIMIT OF 1000 LB 454 KG MAINTENANCE and CLEANING The SRV711 readout for the Remote Display Zoological Platform Scale WARNING System is made of a powder coated aluminum casting Exercise caution DO NOT use high pressurized water or steam when cleaning the display window as it The scale system contains microprocessor is made of clear polyester and can be circuitry and strain gauge sensors that may be scratched by abrasive cleaners Mild adversely affected by exposure to such an soap and water is recommended for environment general cleaning and disinfecting SR Instruments Inc 600 Young Street Tonawanda NY 14150 Tel 716 693 5977 Fax 716 693 5854 URL www srscales com email sri srinstruments com Copyright 2015 SK Instruments Inc Model SRV711B Zoological Platform Scale System Operating and Service Manual SN No 1001 Part No MAN711B_ 150304 Page 6 of 14 STORAGE and TRANSPORTATION If storing this equipment
12. its and displayed on a liquid crystal display Strain gauge force cells each contain four strain gauges mounted in a full Wheatstone bridge configuration These bridges convert the physical movement of the force cell due to the applied mass on the system into minute changes in electrical resistance These changes in resistance produce a voltage difference across the Wheatstone bridge which is amplified by the operational amplifier The amplifier is configured to current sum the output of each cell with potentiometers serving to adjust the sensitivity voltage out per unit of weight applied of each bridge The offset potentiometer produces a small current which nulls the output of the amplifier for an unloaded system The output of the operational amplifier is digitized by the analog to digital converter The converter integrates the analog signal onto the integrating capacitor over a short interval The integrating capacitor is then discharged at a rate proportional to the reference voltage applied to the converter The residual voltage on the integrating capacitor is then multiplied by a factor and again discharged at a rate proportional to the reference voltage The residual voltage from this discharge is again multiplied by a factor and again discharged The time taken to discharge the capacitor is proportional to the voltage from the operational amplifier which is proportional to the applied load on the force cells The time is stored as a binar
13. latform on its side connect the Display Cable 3 to the cable connector on the scale Note For safety reasons it is recommended that the cable be either run through a conduit or run internally through the wall STEP 4 Carefully lower the Scale Platform to the floor making sure not to crimp the Display Cable 3 Note If itis run through conduit pull any slack in the cable up through the Conduit Figure 1 Display STEP 5 Figure 1 Mount the Display on the wall at desired height and location by mounting two screws to the wall and mating the mounting bracket on the back of the display to the screws on the wall Figure 2 Example Zoological Application Continued next page SR Instruments Inc 600 Young Street Tonawanda NY 14150 Tel 716 693 5977 Fax 716 693 5854 URL www srscales com email sri srinstruments com Copyright 2015 SK Instruments Inc Model SRV711B Zoological Platform Scale System Operating and Service Manual SN No 1001 Part No MAN711B_ 150304 Page 5 of 14 REPLACEMENT PARTS and ACCESSORIES Part Description ES7485 Display Label FKS5210039 Adjustable foot FC3102A10S Cable Assembly 14 SYSTEM DESCRIPTION and INTENDED USE SYSTEM DESCRIPTION The SRV711 Remote Display Zoological Platform Scale System employs the latest in microprocessor and load cell technology to provide accurate and repeatable weight data Four 4 identically matched transducers ar
14. on Switch Location cese eee ee scere eee eren eee eee 10 SR Instruments Inc 600 Young Street Tonawanda NY 14150 Tel 716 693 5977 Fax 716 693 5854 URL www srscales com email sri srinstruments com Copyright 2015 SK Instruments Inc Model SRV711B Zoological Platform Scale System Operating and Service Manual SN No 1001 Part No MAN711B_ 150304 Page 3 of 14 PACKING CHECKLIST Model SRV711 Remote Display Zoological Platform Scale System 4 DESCRIPTION QUANTITY DISPLAY UNIT lea SCALE PLATFORM lea DISPLAY CABLE lea PACKAGE OF SIX 6 D CELL BATTERIES lea CALIBRATION CERTIFICATE lea WARRANTY CARD lea MANUAL lea SR Instruments Inc 600 Young Street Tonawanda NY 14150 Tel 716 693 5977 Fax 716 693 5854 URL www srscales com email sri srinstruments com Copyright 2015 SK Instruments Inc Model SRV711B Zoological Platform Scale System Operating and Service Manual SN No 1001 Part No MAN711B_ 150304 ASSEMBLY STEP 1 Unpack the scale system and check parts against the PACKING CHECKLIST If there are any missing or damaged parts please call the Service Hotline 1 800 654 6360 STEP 2 Verify that the serial number on the Display Unit 1 matches that on the Scale Platform 2 Page 4 of 14 PART NAME 1 Display Unit 2 Scale Platform 3 Display Cable STEP 3 Holding Scale P
15. onents and should not be tampered with for any reason Re calibration is generally not required but should be verified periodically to ensure accuracy Recommendation for calibration check is at least once every 12 months or as individual maintenance policy requires HIDDEN CAL BUTTONS by SR Instruments inc ZERO WEIGH Figure 5 Hidden Calibration Button Diagram Note Ensure that nothing is in contact with the scale system during this procedure Remove hands from the system when noting the displayed calibration results SETTING CALIBRATION NOTE Ensure that nothing is in contact with the scale system during this procedure Remove hands from the system when noting TOLERANCE TABLE LOW APPLIED HIGH LIMIT LOAD LIMIT 100 0 100 2 STEP 1 Remove the three 3 screws on the left side cover of the display housing Put the scale system into the Calibration Mode by T the displayed calibration results switching the calibration switch on the display board Figure 6 CALIBRATION will flash on the display 400 0 500 0 600 0 700 0 800 0 900 0 1000 0 Figure 6 Display Board Calibration Switch Location SR Instruments Inc 600 Young Street Tonawanda NY 14150 Tel 716 693 5977 Fax 716 693 5854 URL www srscales com email sri srinstruments com Copyright 2015 SK Instruments Inc Model SRV711B Zoological Platform Scale System Operating and Service Manual SN No 1001 Part No MAN711B_ 150304 Page
16. tion Mode on the display board Figure 6 STEP 11 Reinstall the side cover onto the display housing and secure in place with three 3 mounting screws SR Instruments Inc 600 Young Street Tonawanda NY 14150 Tel 716 693 5977 Fax 716 693 5854 URL www srscales com email sri srinstruments com Copyright 2015 SK Instruments Inc Model SRV711B Zoological Platform Scale System Operating and Service Manual SN No 1001 Part No MAN711B_ 150304 Page 12 of 14 TROUBLESHOOTING SYMPTOM REASON CORRECTIVE ACTION Press the WEIGH button or remove one battery Wait five seconds then re install the battery and try display the WEIGH button again The characters only appear on half of the The display lights appear to work but do Check to ensure the membrane switch label is correctly not respond to button activation plugged into display board Check to ensure the calibration switch is not in the Calibration Mode Figure 6 The display shows no reading at all Check to ensure batteries are installed correctly see directions for BATTERY REPLACEMENT Check display cable to make sure it is connected securely For additional information or assistance telephone our Service Hotline 1 800 654 6360 or e mail sri srinstruments com SR Instruments Inc 600 Young Street Tonawanda NY 14150 Tel 716 693 5977 Fax 716 693 5854 URL www srscales com email sri srinstruments com
17. y number in the analog to digital converter and is transferred to the micro controller when the conversion is complete The micro controller averages and filters the digital output of the analog to digital converter subtracts the value saved during the system zero operation and scales the filtered output then displays the result on the liquid crystal display The micro controller performs a rolling average of data for continuous weigh and for AutoHold the micro controller averages the data before locking in on the reading If the data variance is greater than 0 1 in the AutoHold mode the micro controller will reset the filter and start a new averaging period The micro controller can be placed in a calibration mode where the system can be re calibrated In the calibration mode the result of the weigh operation is scaled to match the value by adjusting the up and down calibration buttons This new calibration factor is then stored in the non volatile memory SR Instruments Inc 600 Young Street Tonawanda NY 14150 Tel 716 693 5977 Fax 716 693 5854 URL www srscales com email sri srinstruments com Copyright 2015 SR Instruments Inc Model SRV711B Zoological Platform Scale System Operating and Service Manual SN No 1001 Part No MAN711B_ 150304 Page 10 of 14 CALIBRATION IMPORTANT CALIBRATION CHECK Qualified service personnel only should perform this procedure Load cells have no user serviceable comp
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