Chatillon DFGS Digital Force Gage
Contents
1. set the HIGH LIMIT C depress SET The high limit will be displayed The SET icon will also be displayed along with the C indicating that you are in the setup mode for HIGH LIMIT S 85 00 The least significant count right most number will flash repeatedly A flashing number may be changed using the p key To change the number depress the 1 key to the required number When the gauge displays the required number move to the next number by depressing the key The number will flash indicating that it can be changed Use the 1 key to change the number Continue moving through the display until you have specified the desired HIGH LIMIT Depress the ENTER key to accept the displayed HIGH LIMIT value You may depress the ENTER key at any time to accept the displayed value WARNING The least significant count is only displayed as a half count 5 or 1 on gauges with the following capacities 10 and 100 2 1 5 2 Setting Low Limit UNIT EL To set the LOW LIMIT T depress SET The low limit will be displayed The SET icon will be displayed along with the T indicating that you are in the setup mode for LOW LIMIT OSC j 9 The least significant count right most number will flash repeatedly A flashing number may be changed using the 7 key change the number depress the J key to the required number When the gauge displays the required number move to the next number by depressing the2. If a manufacturing defect is found AMETEK will replace or repair the instrument or replace any defective part thereof without charge however AMETEK s obligation hereunder does not include the cost of transportation which must be borne by the customer AMETEK assumes no responsibility for damage in transit and any claims for such damage should be presented to the carrier by the purchaser PRECAUTIONS Read the instruction manual completely before attempting to use the DFGS or ACCUFORCE 3 AF3 Series By following the instructions contained in this manual the optimum accuracy and performance can be attained IMPORTANT NOTE The DFGS and ACCUFORCE 3 AF3 gauges are identical in function ality The procedures specifications and operations in this manual apply to both products unless noted Turn off the DFGS AF3 Series before connecting or disconnecting any cables to the instrument Do not overload the DFGS AF3 Series The instrument can handle an overload of up to 150 of the rated full scale The display will read when the gauge exceeds approximately 120 of full scale When the force applied is removed and is no longer displayed the gauge may not read above 121 of full scale in the Tension Peak or Compression Peak modes Therefore you must contact your local distributor to ensure the load cell was not damaged unless you are 100 sure the force applied did not exceed 150 of full scale The DFGS AF3 Seri
3. Figure 1 2 Keypad Layout The key is used in conjunction with other key combinations ZERO is used to erase all values stored and zero the display PROG is used after setpoint setup to activate the audible alarm ZERO key is used to zero the values being dis played Use the ZERO key in combination with the key to erase all values stored in the gauge memory and to zero the display 1 8 CONNECTION TO EXTERNAL DEVICES The DFGS AF3 Series can be configured to accept input from an external source and or to send output to an external data recording device such as a strip chart recorder an RS 232 or MITUTOYO printer or a personal computer It can be used in combination with CHATILLON Test Stands and application software such as NEXYGEN to meet a wide variety of application requirements To connect the gauge to a device attach the appropriate interface cable to the port located at the top of the gauge and the other end to the external device Connector View from Solder End The DFGS AF3 Series is supplied with a 12 pin female connector to provide both digital and analog outputs AMETEK offers a variety of cables to handle most applications Refer to Section 1 10 Select the cable type required to connect the gauge to the peripheral device using the mating connector The pinout of the connector is shown above Pin assignments are defined in the table below PIN Symbol 1 0 Purpose Description RS 232 Transmitted
4. Data RS 232 Received Data Ground Digital Ground Clock Mitutoyo Clock Ready Mitutoyo Ready Request Mitutoyo Request Data Mitutoyo Data Detect Sense Contact Closure Setpoint Setpoint Output Signal Ground Digital Ground Analog GND Analog Ground Analog SIG Analog Output WO RC n2 e m Table 4 3 I O Connector Pinout 10 1 9 CONTACT CLOSURE APPLICATION The DFGS AF3 Series can be configured to capture force and peak readings based on a contact closure When Pin 8 and Pin 10 on the output connector are shorted together the gauge will stop reading data from the loadcell The gauge will freeze both the displayed value and the peak value in memory at the moment the contact closure ocurred All remaining gauge functions remain operational The peak value may be recalled from memory the units changed the data transmitted etc When the short across Pin and Pin 10 is reopened the gauge will return to normal operation Contact Closure Application Short Between Pin 8 and Pin 10 1 10 INTERFACE CABLES Cable Description NC000850 1 9 ft 2 7m Connects to personal computer with 9 pin RS232 connection NC000850 2 20 ft 6 1m Connects to personal computer with 9 pin RS232 connection NC000652 6 ft 1 8m Connects to a personal computer with a 25 pin RS 232 connection NC000652 1 10 ft 3m Connects gauge to a personal computer with a 25 pin RS 232 con
5. TABLE OF CONTENTS 2 2 CONFIGURATION MODEL a Sua ire ern tm erem en 2 2 1 Configuring Output Ports Analog Output ce s 2 2 2 Configuring Output Ports Digital Outputs se 2 2 2 1 Enabling the Mitutoyo Output 2 2 2 2 Enabling the RS 232 Port Numerical Data Only 2 2 2 3 Enabling the RS 232 Port Full Data sse 2 2 2 4 Modifying Communication Parameters 2 3 DATA prre 2 3 1 About Data Collect iai dune ciere re reiecit 3 0 CALIBRATING THE DFIS AF2 GAUGE T a a a 3 1 CALIBRATION PROCEDURE etate ieri cra 4 0 APPLICATION SOFTWARE INTERFACE rennen 4 1 NEXYGEN GAUGE Application Software wu 5 0 TROUBLESHOOTING 6 0 TECHNICAL REFERENCE AND SPECIFICATIONS a a 7 0 MODEL NUMBERS scscssssssssssssssssssssesssssssesssseesssssesssssneesssssesssssseessssseesssaneesssaseesseas 28 28 30 30 31 32 33 TABLES Page 1 4 Test Stand Adapter KiS eee 7 1 8 Connector iccirco crie R 9 1 10 Interface Calas saat aaa un et e Suha 10 2 3 Data Collect and ASCII Commands sse 26 ILLUSTRATIONS LA Physical DIMENSIONS ree eri 7 1 5 Reversible HOUSING
6. gauge is communicating to e g personal computer must be configured to transmit an ASCII character F to the gauge This signals the gauge to go into or out of DATA COLLECT mode When the external device sends an ASCII character or X to the gauge the gauge will always respond even if the instantaneous reading is a zero value This permits real time data collection to begin at a force reading or zero value The ASCII character or X is a request to the gauge to transmit data The gauge will return to Normal mode when it receives and ASCII character F The table on the next page shows the available ASCII characters and their functions The diagram below will illustrate how the gauge operates based on these ASCII characters NOTICE Each ASCII character transmission will advances the gauge one step similar to a keypad entry Data Collect Mode ASCII Compression Tension Peak Mode Peak Mode Data Collect Mode P Data Collect Mode Figure 2 3 Data Collect Mode and ASCII Command Relationship 26 The DFGS AF3Series can accept and execute commands through the RS 232 serial port The command set is tailored to make it easy to configure and operate the instrument under computer control The string commands are sent as ASCII characters The following string commands are recognized Command Response Description is space 20 hex 9 is a number 0 through 9 is a space or a minus lt CR gt is Ca
7. i e NORM T PK C PK will be zeroed To zero and clear all measurement types press and hold the PEAK key and then press the ZERO key Zeroing the gauge takes approximately 0 5 seconds LIL LIL BI To TARE affix the required adapter or fixture to the gauge Orient the gauge so that it is positioned as it will be during testing Depress the ZERO key to tare the gauge To ZERO after a test depress the ZERO key to zero the force readings Removing power to the gauge will also zero the force readings To CLEAR all stored force readings in the gauge memory simulataneously depress 4 ZERO 15 2 1 5 Setting Limits Limits are set by depressing the SET key It is very important when setting limits to clearing understand the relationship between limits and whether the gauge is in tension or compression mode WARNING Tension T is considered as negative compression Therefore the more negative of the two limits for the gauge must be stored as the LOW LIMIT For tension testing where the two limits are 5 Ibs and 20 165 the 20 Ib limit is more negative and must be entered as the LOW LIMIT The HIGH LIMIT would be set at 5 Ibs For compression testing where the two limits 5 Ibs and 20 Ibs the 5 Ib limit is more negative and must be entered as the LOW LIMIT The HIGH LIMIT would be set at 20 Ibs The audible alarm will buzz if the limits are set incorrectly 2 1 5 1 Setting High Limit
8. j key The number will flash indicating that it can be changed Use the key to change the number Continue moving through the display until you have specified the desired LOW LIMIT Depress the ENTER key to accept the displayed HIGH LIMIT value You may depress the ENTER key at any time to accept the displayed value 2 1 6 Activating Limits Once the Limits setup is complete and the ENTER key is depressed the display will indicate LLO If the LLO is flashing the specified limits are ACTIVE If the LLO is displayed in a steady state Not flashing the limits are not active UNIT L LO 1 U The gauge will display a flashing LLO when the LIMITS are ACTIVE To change to an inactive state depress the key JBL If the display indicates a steady LLO the LIMITS are NOT ACTIVE To change to an active state depress the key et 2 1 7 Audible Alarm Auto Shutoff Machine Control WARNING The Audible Alarm buzzer Auto Shutoff and Machine Control features cannot be independently configured All three features must be configured each time a change is made to any of the three features 2 1 7 1 Activating Audible Alarm Buzzer The DFGS AF3 Series features an audible alarm that is associated with the setup of limits When limits are setup for the gauge the gauge can be configured to buzz whenever the HIGH or LOW limit is reached The audible alarm cannot be configured until the l
9. setup and the audible alarm has been configured to be active or inactive SP D 8 OOU To activate MACHINE CONTROL depress the ENTER key The display will indicate a flashing L H This indicates that the gauge is configured for machine control Whenever a limit is reached the gauge will send a signal to the test stand that will stop the crosshead To deactivate MACHINE CONTROL depress the PROG key The display will indicate a steady L H showing that the gauge is not setup with machine control 2 1 7 3 Activating Auto Shutoff The automatic shutoff feature is intended for battery operations and is designed to help preserve battery life If the DFGS AF3 Series is inactive no changes in load no key actions no communications for a 10 minute period the gauge will automatically power down and shutoff a B WARNING The Auto Shutoff feature removes power to the gauge Whenever power is removed from the gauge the gauge ERASES all stored peak data from memory This information is NOT recoverable Exercise care when activating this feature To activate AUTO SHUTOFF depress the ENTER key The gauge will display the specified operating mode To deactivate AUTO SHUTOFF depress the PROG key The gauge will display the specified operating mode 219 2 2 CONFIGURATION MODE The Configuration Mode facilitates the communications setup for the gauge Communication MODE MITUTOYO Option
10. several engineering units LB KG N G OZ Field calibration Analog and Digital outputs through common connector Can be controlled remotely via RS 232 port 1 2 ELECTRICAL SAFETY These instruments have been assessed against the essentail health and safety requirements of the Low Voltage and the EMC Directives listed below Based on conformity with the listed directives the DFGS and AF3 are compliant with the following Directive Test Standard EMC Directive 89 336 EEC EN 50081 1 EMC Generic Emissions Standard EN 50082 1 EMC Generic Immunity Standard Low Voltage Directive 73 23 EEC EN 61010 1 Safety Requirement for Electrical Equip 1 3 RECHARGING BATTERIES A rechargeable NiCad battery powers the DFGS AF3Series Since NiCad batteries continue to discharge when not in use it may be necessary to recharge the unit before use When the battery power begins to lose its charge the Battery Indicator will appear on the display To recharge the battery plug the battery charger included with the gauge into the correct voltage source and insert the charger jack into the receptacle on the end of the gauge Charge the battery for 10 12 hours to yield approximately 8 10 hours of continuous operation The gauge can be operated continuously with the charger connected _ WARNING Before using the gauge please fully charge the Nicad battery Use only the battery charger supplied with the gauge Using other chargers can overcharge and damage the ba
11. 19 20 19 200 Baud 9600 9600 Baud Factory Setting 4800 4800 Baud 2400 2400 Baud 1200 1200 Baud 600 600 Baud 300 Baud 0 1 Transmit with Units Factory Setting 0 2 Transmit without Units WORD LENGTH STOP BITS 7 2 7 bit Word 2 stop bits Factory Setting 8 1 8 bit Word 1 stop bit EP Even Parity P No Parity Factory Setting Figure 2 2 Communication Setup Hierarchy 20 2 2 1 Configuring Output Port Analog Output The analog output is always available at the output port without configuration The analog output is 0 to 2 0Vdc 0 018Vdc in tension mode and 0 to 2 0Vdc 0 018Vdc in compression mode 2 2 2 Configuring Output Port Digital Output The DFGS AF3 gauge supports three types of digital output Modified BCD Mitutoyo RS232 Numerical Data Only and RS232 Full Data When the digital output is configured for RS232 Numerical Data Only the format of the data being transmitted to the external device is XXXXX CR LF LL lt LF gt Line Feed CR Carriage Return AM 3 spaces Note are NOT shown XX X X b character Force Value with decimal point SPACE Compression Reading C Tension Reading T When the digital output is configured for RS232 Full Data the format of the data being transmitted to the external device is XXXXX YY lt CR gt lt LF gt L Line Feed CR Carriage Return YY Units of Measure 2 characters 21
12. 3 2 1 3 Selecting Type of Measurement Capturing Peaks The gauge continuously measures instantaneous tension or compression forces normal readings It also captures peak tension and peak compression forces The gauge displays which measurement is being indicated Pressing the PEAK key will cycle between the available force measurement modes WARNING Normal mode readings are an average of 600 instantaneous readings taken over a 120mS period It is the force displayed whenever the peak mode is not configured T PEAK or C PEAK This digital filtering is used to eliminate the effects from noise or vibration that may cause false readings No digital filtering is used when the peak mode is configured A noise elimination algorithm is employed however The peak reading is the maximum value of the individual instantaneous reading which the gauge captures 200 sae With gauge power ON depress the PEAK key to cycle through available force modes C T T PEAK C PEAK Release the key when the desired unit is displayed The display will indicate C until tension is applied to the loadcell This will cause the display to indicate tension T 2 1 4 Tare Zero and Clear Memory Zeroing allows you to exclude the weight of accessories and attachments from the indicated force readings It also clears captured peak tension and compression readings To zero the gauge momentarily press the ZERO key Only the current measurement type
13. Instruction Manual SPK DFGS 031 December 2001 Revision 3 CHATILLON DFGS Series ACCUFORCE AF3 Series Digital Force Gauges with Integral Loadcell Operating Instructions CHATILLON DFGS Series ACCUFORCE Series Digital Force Gauge Digital Force Gauge AMETEK INSTRUMENT PRECAUTIONS TABLE OF CONTENTS INTRODUCTION AND PRODUCT OVERVIEW a a PRODUCT FEATURES ELECTRICAL SAFETY RECHARGING BATTERIES PHYSICAL DIMENSIONS REVERSIBLE HOUSING ABOUT THE DISPLAY ABOUT THE KEYPAD CONNECTION TO EXTERNAL DEVICES wists CONTACT CLOSURE APPLICATION INTERFACE CABLES SETTING UP FOR SAFE USE FRONT PANEL OPERATION NORMAL MODE 2 1 1 Gauges iunt era enia n n UTER 2 1 2 Selecting Units of Measure eminens 2 1 3 Selecting Type of Measurement Capturing 2 144 Zeresana ania 2 1 5 Seting mD erred 2151 Seting HIG HH WMI 2145 272 LOW IMM tein iride tetti eb e en Der EE 2 1 6 Activating LImllS matar 2 1 7 Advanced OOM 2 1 7 1 Activating Audible Alarms 2 1 7 2 Activating Machine Control iss iu nieto reete 2 1 1 3 Activating Auto 10 11 11 12
14. N 34 35 AMETEK TEST AND CALIBRATION INSTRUMENTS Internet Addresses www ametek com www chatillon com www lloyd instruments co uk Americas AMETEK Test and Calibration Instruments Division 8600 Somerset Drive Largo Florida 33773 USA Tel 1 727 536 7831 Tel 1 800 527 9999 USA only Fax 1 727 539 6882 AMETEK and CHATILLON are registered trademarks of AMETEK Inc LLOYD INSTRUMENTS is an AMETEK Inc trademark Information within this document is subject to change without notice Pub No NC001563 Issued 12 01 Europe AMETEK Lloyd Instruments Forum House 12 Barnes Wallis Road Segensworth East Fareham Hampshire PO 15 5TT Tel 44 0 1489 486399 Fax 44 0 1489 8851118 AMETEK Lloyd Instruments SA 3 Avenue des Coudriers Zone d Activite de l Observatoire 7810 Montigny Le Bretonneux France Tel 33 1 3057 4774 Fax 33 1 3057 5033 AMETEK Precision Instruments Europe GmbH Rudolf Diesel Strasse 16 D 40670 Meerbusch Germany Tel 49 2 159 9136 0 Fax 49 2 159 9136 39 Copyright 2001 by AMETEK Inc 36 Asia Pacific AMETEK Lloyd Instruments No 7 Sherwood Place Alexander Heights 6064 Perth Australia Tel 61 8 9343 5725 Fax 61 8 9343 5723 AMETEK Singapore Pvt Ltd 10 Ang Mo Kio Street 65 05 12 TECHPOINT Singapore 569059 Tel 65 484 2388 Fax 65481 6588 ISO 9001 Manufacturer Printed in U S A
15. ay i anA HP PR ND RU 8 L6 Display Layout m 9 1 7 Keypad a SOS Sa nm iret erre erre tei 9 1 8 Serial Communication Connection and Pinout Diagram sses 10 1 9 Contact Closure PIQUE sistere kil rr tr HE eps te t te ttd 10 2 2 Configuration Setup Hierarchy 19 2 3 Data Collect and ASCII Command Relationship Model 25 4 0 NEXYGEN GAUGE Operating Display sss 29 PRODUCT WARRANTY This instrument is warranted against defects in workmanship material and design for one 1 year from the date of delivery to the extent that AMETEK will at its sole option repair or replace the instrument or any part thereof which is defective provided however that the warranty shall not apply to instruments subjected to tampering or abuse or exposed to highly corrosive conditions THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES WHETHER EXPRESS OR IMPLIED AND AMETEK HEREBY DISCLAIMS ALL OTHER WARRANTIES INCLUDING WITHOUT LIMITATION ANY WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE OR MERCHANTABILITY AMETEK SHALL NOT BE LIABLE FOR ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES INCLUDING BUT NOT LIMITED TO ANY ANTICIPATED OR LOST PROFITS This warranty is voidable if the purchaser fails to follow any and all instructions warnings or cautions in the instrument s operation manual
16. e the RS232 digital output with numerical data only configure the gauge to transmit without units turn the gauge power OFF B ga JLB NOTICE You must power down the gauge to configure the digital output and communication specifications for the gauge To enable the RS232 NUMERICAL DATA ONLY transmit without units output with gauge power OFF DEPRESS and HOLD the XMIT key while simultaneously depressing the gauge power ON key Release the XMIT key after approximately 2 seconds The gauge will display the current communication parameters for the gauge beginning with the Mode See Figure 2 2 The parameters will be displayed in the following order Baud Rate Units Word Length Stop Bits and Parity NOTICE Your gauge is shipped with the following factory settings Baud Rate 9600 Units 0 1 Transmit with Units Word Length Stop Bits 7 2 7 bit word 2 stop bits Parity P No Parity To select the RS232 NUMERICAL DATA ONLY output change the UNITS to 0 2 by depressing the PROG key until 0 2 is displayed Once 0 2 is displayed 0 2 will flash depress the XMIT key to accept and proceed to the next communication parameter 28 2 2 2 4 Enabling RS232 Digital Output Full Data Default UNITS To enable the RS232 digital output with full data transmit output with units turn the gauge power OFF Full data means that UNITS will be included with your force value during transmission to an externa
17. e warm up a minimum of 5 minutes prior to the calibration procedure 28 STEP 2 STEP 3 e 1 111 STEP5 LB Mount gauge securely to a weight stand in the compression position Attach a platen or hanger to loadcell shaft Calibrate Zero 0 load Exercise the loadcell three 3 times by applying and then removing a full load weight With the platen or hanger attached and no weight added depress the ZERO key The display should read 1111 You should proceed to calibrate the gauge span Calibrate Span 100 load After you have successfully calibrated 0 load apply full load to the gauge in the compression direction Note If you are using a 100 lbf capacity gauge and operating normally at 50 Ibf you must calibrate the gauge at full load e g 100 Ibf You cannot calibrate the gauge span using any other weight other than the gauge full load Once full load has been applied to the gauge depress the ZERO key The gauge will display 0000 Loadcell Error If your gauge displays during any point in the calibration process you must repeat Step 1 This indicates that either the gauge has lost communications with the loadcell or that the loadcell is damaged or that it has been overloaded Normal Operation Once you have successfully calibrated to full load and the display reads 0000 you may now remove the full load The display should read the full capacity of the force gauge being calibrated You
18. es is designed for axial loading only Applying load on an angle or eccentric loading may cause an erroneous reading Do not use tools to attach the shaft adapter and accessories to the gauge Use finger tight torque only to prevent damage to the load cell IMPORTANT NOTE Before using your new DFGS AF3 Series fully charge the recharge able Nicad battery by plugging the supplied battery charger into the battery charger jack at the top of the gauge and the proper AC outlet Use only the battery charger supplied with the gauge Using other chargers can overcharge and damage the battery 1 0 INTRODUCTION AND PRODUCT OVERVIEW The DFGS AF3 Series family of digital force gauges manufactured by AMETEK Test and Calibration Instruments Division They have been designed to provide accurate compression and tension force measurements via an internal load cell These instruments have been precisely crafted to provide years of reliable service Each gauge comes equipped with a rechargeable battery pack AC battery charger Accessory Attachments and a handy Carrying Case 1 1 PRODUCT FEATURES The key features of the DFGS AF3 Series are Load capacity up to 100 Ibs 50 kg 500 N Internal sampling rate of 5000 Hz Displays Tension T or Compression C Configurable Setpoints 2 with Audible Alarm Simple keypad operation Automatic power shutoff Mounting arrangements for attaching to Manual and Motorized Test Stands Readings can be scaled using
19. imits have been configured The user can also elect not to use the audible alarm and deactivate the alarm feature ENTER XMIT OUUU WARNING To activate the audible alarm you must first configure the High and Low LIMITS The alarm will not buzz unless the limits are first selected You may NOT configure the alarm before the limits are set To activate the ALARM buzzer depress and HOLD the key and simultaneously depress the PROG key The display will indicate a flashing BE EP To enable the audible ALARM depress the ENTER key The display will indicate a flashing S SP showing that the buzzer will sound whenever a limit has been reached and that the gauge is ready for machine control setup To disable the audible ALARM depress the PROG key The display will indicate a steady S SP showing that the buzzer is not active The buzzer will NOT sound whenever a limit is reached 2 1 7 2 Activating Machine Control Whenever the DFGS AF3 Series is used with a TCD Series test stand the gauge must be setup for machine control This function permits the gauge to send the appropriate signal to the test stand to STOP the crosshead whenever the configured HIGH or LOW LIMIT is reached ENTER WARNING To activate Machine Control you must first configure the High and Low LIMITS Next you must configure the audible alarm You may NOT configure the gauge for Machine Control until the Limits are
20. ining communication setup parameters e g UNITS WORD LENGTH STOP BITS and PARITY Press PROG key to select different parameters and Press the ENTER key to enable the desired setup for each parameter NOTICE Your gauge is shipped with the following factory settings Baud Rate 9600 Units 0 1 Transmit with Units Word Length Stop Bits 7 2 7 bit word 2 stop bits Parity P No Parity a 22 2 2 2 2 Modifying Communication Parameters You may change the communication parameters for the force gauge by sequencing through the communi cation setup display ied s a 9600 B08 JOQ NOTICE You must power down the gauge to configure the digital output and communication specifications for the gauge To modify any communication parameter with gauge power OFF DEPRESS and HOLD the XMIT key while simultaneously turning the gauge power switch to the ON position Release the XMIT key after approximately 2 seconds The gauge will display the first available option designated as 000H for Mitutoyo output To change to a BAUD RATE depress the PROG key until the desired baud rate appears Select XMIT to enable the desired baud rate NOTICE Your gauge is shipped with the following factory settings Baud Rate 9600 Units 0 1 Transmit with Units Word Length Stop Bits 7 2 7 bit word 2 stop bits Parity P No Parity 293 2 2 2 3 Enabling RS232 Digital Output Numerical Data Only NO UNITS To enabl
21. l device B08 NN HEN NOTICE You must power down the gauge to configure the digital output and communication specifications for the gauge To enable the RS232 FULL DATA output with gauge power OFF DEPRESS and HOLD the XMIT key while simultaneously depressing the gauge power ON key Release the XMIT key after approximately 2 seconds The gauge will display the current communication parameters for the gauge The parameters will be displayed in the following order Baud Rate Units Word Length Stop Bits and Parity NOTICE Your gauge is shipped with the following factory settings Baud Rate 9600 Units 0 1 Transmit with Units Word Length Stop Bits 7 2 7 bit word 2 stop bits Parity P No Parity To select the RS232 FULL DATA output change the UNITS to 0 1 by depressing the PROG key until 0 1 is displayed Once 0 1 is displayed 0 1 will flash depress the XMIT key to accept and proceed to the next communication parameter 25 2 3 DATA COLLECT MODE The DFGS AF3Series can accept and execute commands through the RS 232 serial port The command set is tailored to make it easy to configure and operate the instrument under computer control 2 3 1 About Data Collect Mode Data transmitted by the gauge in Data Collect mode is a filtered average of 45 instantaneous force readings Digital filtering is employed to eliminate false readings resulting from noise and vibration The external device which the
22. les Office No display after pressing ON key n The display indicates Gauge does not communicate to my TCD test stand Gauge does not communicate to my personal computer Make sure that the battery is fully charged If using with AC power adapter make sure that the source power is on and that the gauge is properly connected The loadcell may be have been over ranged or the gauge may be in need of calibration Perform the calibration procedure in Section X 0 If after calibration the gauge continues to display the loadcell is likely damaged from being over ranged Return for repair Check to ensure that the proper cable is being used to communicate to the test stand Make sure the gauge is setup for machine control You must setup the gauge HIGH and LOW limits Check to ensure that the proper cable is being used to communicate to the personal computer Make sure the gauge communication output param eters are configured properly The external device which the gauge is communi cating to e g personal computer must be config ured to transmit an ASCII character F to the gauge This signals the gauge to go into or out of DATA COLLECT mode 291 6 0 TECHNICAL REFERENCE Accuracy DFGS Series AF3 Series 30 1596 of Full Scale 41 LSC 0 2 of Full Scale 1 LSC Tare Capacity 10 in order to utilize Full Scale in Ib Mode can tare more than 10 however user may not have
23. nection NC000652 2 15 ft 4 6m Connectsto a personal computer with a 25 pin RS 232 connection NC000652 3 20 ft 6 1m Connects to a personal computer with a 25 pin RS 232 connection NC000653 6 ft 1 8m Connects gauge to X Y recorder double banana NC000654 5 ft 1 5m Connects gauge to a Mitutoyo device 10 pin NC000697 10 ft 3m Connects gauge to a Mitutoyo device RS232 NC000698 10 ft 3m Connects gauge to a Datamyte NC000647 6 ft 1 8m Connects to CHATILLON Model TCD ENC0125 8 ft 2 4m Connects to CHATILLON Model TCM ee 1 11 SETTING UP FOR SAFE USE The DFGS AF3 Series should be properly setup before accurate and most of all safe measurements can be made Only when you have verified that you will be conducting a safe test proceed as follows 1 2 Determine what and how it will be tested and verify that the DFGS AF3 Series can handle the test If desired mount the gauge in the test fixture If you will be powering the instrument from the AC line plug the charger into its jack on the instrument Plug the charger into the correct AC voltage outlet the required AC voltage and frequency are listed on the charger Otherwise if you will be powering the instrument from batteries fully charge the batteries before using IMPORTANT NOTE Before using your new DFGS AF3 Series fully charge the recharge able Nicad battery by plugging the supplied battery charger into the ba
24. proper ESD Electro Static Discharge precautions Touching the circuit board without taking the proper ESD precautions may cause damage to the circuit board 1 6 ABOUT THE DISPLAY The display is an LCD seven segment display that is easily read even at a distance The display illustrates different symbols such as battery symbol BATT indicating the battery is running low a C for compres sion or a for tension The peak operational modes are also displayed T PEAK C PEAK The right portion of the display indicates the force measurement units LB KG N G OZ The display updates 4 times per second T Tension Compression Combined with Indicates low T or C to battery condition indicate peak d SET T C PEAK BATT Limits LB LB KG N G OZ 1 0 0 0 0 KG Force measurement L L N indicator WARNING Force reading accuracy may be affected by a low battery condition BEFORE using the force gauge for the first time fully charge the rechargeable NiCd battery Plug the charger into the gauge s charge jack and into an AC outlet Always charge the battery whenever the BAT indicator is highlited A minimum charge of 8 hours is recommended 28 1 7 ABOUT THE KEYPAD The keypad consists of nine membrane keys The keys are described below ON key is used to power the gauge PROG key allows you specify configurable func tions including an audible buzzer that sounds when a limit is
25. r force gauge is now ready for use 29 4 0 APPLICATION SOFTWARE The DFGS AF3 Series gauge may be used with the NEXYGEN GAUGE Series application software p n 40 0739 to provide you with an easy to use economical data acquisition system The optionally available NEXYGEN GAUGE software package allows you to connect your force gauge to your personal computer and perform the following advanced functions Graphically present force vs time results for each of your tests Record and stored tabular test results including peak values load at break pass fail results 41 NEXYGEN GAUGE SETUP REQUIREMENTS If using the optional NEXY GEN GAUGE application software please refer to the product s operating manual p n 01 for software application and operational instructions NEXYGEN GAUGE applications require a personal computer with the following minimum specifications Pentium 11 400 MHz Processor 128MB RAM 16550 UART 250MB Free Disk Space VGA Windows Display Driver 1024 x 768 or Higher Monitor 30 5 0 TROUBLESHOOTING The DFGS AF3 Series digital force gauge has been designed to be very easy to use Intunitive displays intelligent prompts and function keys have been provided to support all levels of users The following table is provided to aide in basic troubleshooting for your DFGS AF3 Series force gauge For detailed troubleshooting assistance please contact your local Sales Representative or your nearest AMETEK Sa
26. reached communication with a test stand to stop the stand s crosshead travel when a setpoint or limit is reached activate deactivate the automatic power shutoff feature OFF key is used to turn power off to the gauge An automatic power shutoff feature may be used that turns power off to the gauge when the gauge has been inactive for 10 minutes UNIT __ key is a dual function key The key is used to select the desired force measurement units oz lb g kg N The key is also used to navigate across a displayed value During setup the user can navigate from the left most displayed value Least Significant Count to the right most displayed value Most Significant Count and to the T for tension and C for com pression PEAK L key is a dual function key The key is used to activate deactivate the Peak Hold feature which freezes the display at the peak value that ocurred during a test The display will indicate T PEAK for peak tension or C PEAK for peak com pression During setup the key is used to change setpoint values Depressing the L key will increase the currently displayed value by one value SET key is used to set the HIGH limit LOW limit and to activate deactivate the setpoint function ENTER XMIT is a dual function key It is used to accept values configured into the gauge firmware ENTER and also used to initiate data transmis Sion to an external device e g personal computer XMIT
27. rriage Return 0D hex lt LF gt is Line Feed 0A hex w AC R gt lt LF gt On power up this line is sent Unit b lt CR gt lt LF gt Sends currently selected units to external Unit kg CR gt lt LF gt Unit N CR gt lt LF gt Toggles between Data Collect and the Normal and PeakModes Steps through Normal and Peak Modes Normal Tension Peak Compression Peak Resets the gauge zeroes all modes Sends currently selectedmode Normal Tension Peak or Data Collect TP MODE lt CR gt lt LF gt CP MODE CR LF DC MODE CR LF Steps through Units in the following order Ib kg N 399 99 b C R LF gt Sends data on display with the position of 99 99 kg lt CR gt lt LF gt the decimal place the same as on display 3000 GATA If in Data Collect Mode sends the Data Collect filter instead If Transmit Units is set to transmit without units Ib kg and N are replacedby ERROR MCR gt lt LF gt Response during force overload Zeroes the currently selected mode Normal Tension Peak or Compression Peak 27 3 0 CALIBRATING THE DFGS AF3 SERIES The DFGS AF3 Series may be field calibrated however for optimum performance it is recommended that your gauge be factory calibrated at least every other year or more frequently depending on your frequency of use Field calibration is recommended every 6 to 12 months A 2 point calibration 0 and 100 is all
28. space Note is NOT shown X X X X X 5 character Force Value with decimal point SPACE Compression Reading C Tension Reading T 221 2 2 2 1 Enabling MITUTOYO Digital Output To enable the MITUTOYO digital output turn the gauge power OFF ENTER XMIT NOTICE You must power down the gauge to configure the digital output and communication specifications for the gauge To enable the MITUTOYO output with gauge power OFF DEPRESS and HOLD the XMIT key while simultaneously depressing the gauge power ON key Release the XMIT key after approximately 2 seconds The gauge will display a flashing 000H which denotes the MITUTOYO option To enable the MITUTOYO output press the ENTER key The gauge will activate the MITUTOYO option The 000H display will stop flashing and the gauge will return to the standard operating mode ready for a test To change the MITUTOYO output to an RS232 option you must turn the power OFF to the gauge With the power OFF depress and HOLD the XMIT key while simultaneously depressing the gauge power ON key The gauge will display a flashing 000H denotes Mitutoyo output option Depress the PROG key and the gauge will display 19 20 representing a 19 2 baud rate Continue to depress the PROG key until the desired baud rate is displayed Press ENTER to enable the desired baud rate Once you have selected the baud rate the gauge will sequence you through the rema
29. that is required to properly calibrate the force gauge It is not necessary to perform a multi point calibration WARNING The DFGS AF3 Series should always be calibrated to full capacity A 100 Ibf capacity gauge should be calibrated at a full scale reading of 100 Ibs If you have a 100 Ibf capacity gauge yet you use the gauge between 0 and 50 Ibf YOU CANNOT calibrate the gauge as thought the full load is 50 Ibf L You must have a way to mount the load cell vertically oriented before applying tension and compres sion force The DFGS AF3 Series should be calibrated using deadweights representing 100 of the rated full scale You must have a safe method of axially applying the deadweights to the load cell in compression direction WARNING You must depress ZERO at the completion of the calibration procedure to record the calibration data into the instrument s electronics Data is NOT SAVED until the ZERO key is depressed If at any time during the calibration procedure that incorrect data is being displayed simultaneously depress PEAK and ZERO keys to restart the calibration procedure 31 CALIBRATION STEPS This section leads you step by step through the calibration process for a DFGS AF3Series L STEP 1 Gauge Pre Set With gauge power OFF PRESS and HOLD the UNITS and PROG 0 0 0 0 LB key Depress the power ON key Note The gauge must be laying flat in a horizontal position with no load applied Note Let the gaug
30. ttery 6 1 4 PHYSICAL DIMENSIONS 1 som GG gt ZI 228 57 15 e o LH i d f L V Y S LONG DFGS AF 3 SE ILE NAN 96 Test Stand Adapter Type Part No Description LTS Mounts directly to LTS mechanical test stand LTC Mounts directly to LTC mechanical test stand HTC HTCK 2 Adapts to HTC mechanical test stand MT SPK MT DFGS Adapts to MT mechanical test stand TT NC002582 Adapts to TT pneumatic tester LTCM 6 SPK FM200 019 Adaps to LTCM 6 series motorized stand TCM201 SPK FM200 019 Adapts to TCM201 series motorized stand LFPLUS SPK LFM 0005 Adapts to LFPLUS series digital stand TCD200 SPK FM200 019 Adapts to TCD200 series digital stand Table 1 4 Test Stand Adapter Kits 1 5 REVERSIBLE HOUSING The DFGS AF3 Series is shipped shaft down for stand mounted applications and the display on the front of the gauge is configured accordingly For performing operations in which the gauge will be hand held it may be desirable to rotate the front of the casing so that the display and logo will be shown right side up To do 50 remove the two screws from the back of the casing carefully rotate the front of the casing 180 degrees being careful not to pull pinch or twist the wires inside and then reinstall the screws NOTE When removing the screws to the back casing for any reason please take the
31. ttery charger jack at the top of the gauge and the proper AC outlet Use only the battery charger supplied with the gauge Using other chargers can overcharge and damage the battery Attach all necessary attachments and plug in the cables Route the cables so they do not interfere with the test Zero the gauge by depressing the ZERO key Attach the specimen and begin to take measurements 2 0 FRONT PANEL OPERATION The DFGS AF3 Series can operate in one of the three modes Normal Data Collect and Configuration 21 NORMAL MODE The principal function of the Normal mode is to provide indications of load applied to the load cell Instantaneous force peak tension and peak compression readings can be displayed and scaled in a variety of units of measure 2 1 1 Powering Gauge There are dedicated function keys to power the DFGS AF3 Series To apply power to the gauge depress the ON key To remove power to the gauge depress the OFF key SET T C PEAK BATT LB 10 000 LB 2 1 2 Selecting Units of Measure Force indications can be displayed in LB KG and N or G OZ and N The gauge displays the active units of measure on the LCD display Pressing the UNIT key will cycle between the three available measuring units J LIL LIL 2 s LB KG N With gauge power ON depress the UNIT key to cycle through available force measurement units LB KG N G OZ Release the key when the desired unit is displayed 21
32. use of gauge s Full Scale capacity during testing Deflection Inches 0 007 40 003 for loadcell Safe Overload Gauge will display when the force applied exceeds approximately 120 of the gauge s ca pacity Overload Maximum overload is 150 Load Cell deform ation may occur when overload exceeds 150 Contact your local AMETEK Representative if you experienced an overload beyond 150 Analog Output 2 00 to 42 00 0 018Vdc 232 Digital Output RS 232 and MITUTOYO Display Update 8 updates per second in Normal or Peak Mode Sampling Rate 5 000 samples per second Battery Life 8 10 hours of continuous operation between charges Temperature Range 40 to 110 F 5 to 45 C Temperature Stability 0 06 per F Warranty 1 year 7 0 MODEL NUMBERS CHATILLON Brand Model Capacity DGGS 8 oz x 0 005 oz 250 9 0 1 g 2 5 N x 0 001 N DFGS2 2 Ib x 0 001 Ib 1 kg x 0 001 kg 10 N x 0 01 DFIS10 10 Ib x 0 005 Ib 5 kg x 0 005 kg 50 N x 0 05 N DFIS50 50 Ib x 0 02 Ib 25 kg x 0 02 kg 250N x 0 2 N DFIS100 100 Ib x 0 05 Ib 50 kg x 0 05 kg 500 N x 0 5 33 AMETEK Brand Model AF 3 250G AF 3 002 AF3 010 AF 3 050 AF 3 100 Capacity 8 oz x 0 005 oz 250gx0 1g 2 5 N x 0 001 N 2 Ib x 0 001 Ib 1 kg x 0 001 kg 10 N x 0 01 N 10 Ib x 0 005 Ib 5 kg x 0 005 kg 50 N x 0 05 N 50 Ib x 0 02 Ib 25 kg x 0 02 kg 250 N x 0 2 100 Ib x 0 05 Ib 50 kg x 0 05 kg 500N x 0 5
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