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Maxuum III Digital Electronic Indicator 2239028 Rev D

For expedited warranty service, contact our Customer Service

Department at 1-401-784-3100 and obtain a Return Authoriza-

tion Number.

Send shipments to:

Mahr Inc.Repair Department

1139 Eddy Street

Providence, Rhode Island 02905

U.S.A.

6.1 Replacement Parts

Contact Points

Most

0D[XP,,,,Q

dicators and Digital Transducers are furnished with one of the following Contact Points:

PT-223

For .375” dia. Stem -1/4” long, radiused tip, 4-48 thread

PT-563

For .375” dia. Stem -1/4” long, radiused tip, 4-48 thread-for use with Lifting Lever

EPT-1037-W1

For 8mm dia. Stem 6 mm long, radiused tip, M2.5 thread

EPT-1037-W2

For 8mm dia. Stem 6 mm long, radiused tip, M2.5 thread-for use with Lifting Lever

Many alternate Contact Points are available. Refer to the Mahr Precision Gages catalog.

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Содержание Maxum III

Страница 1: ...Instruction Manual Digital Indicator Document Part No 2239028 Rev D Maxum III 1 ...

Страница 2: ...33105 2033106 8mm 17mm 0 670 2033107 2033108 8mm 38mm 1 50 2033111 2033112 6 Pin output 0 375 17mm 0 670 2033113 2033114 0 375 38mm 01 50 2033115 2033116 8mm 17mm 0 670 2033117 2033118 8mm 38mm 1 50 2033121 2033122 10 pin output 0 375 17mm 0 670 2033123 2033124 0 375 38mm 01 50 2033125 2033126 8mm 17mm 0 670 2033127 2033128 8mm 38mm 1 50 2033001 Display Unit No Stem Use with Digital Transducer 203...

Страница 3: ...ODUCT FEATURES 9 2 1 Maxum III Features 9 2 1 1 Controls Standard Mode 12 2 1 2 Controls Enhanced Mode 12 3 0 Setup Mode 14 3 1 Entering Setup Mode 14 3 1 1 Exiting Setup Mode 15 3 1 2 Changing inch metric units 15 3 2 Changing Measuring Direction 16 3 3 Changing Digital Range 16 3 4 Changing Digital Resolution 17 ...

Страница 4: ...Overlay Scale 19 3 6 1 Installation 20 3 6 2 Removal 21 3 7 Selecting Data Output Format 23 4 0 OPERATION 24 4 1 Operating the Maxum III 24 4 1 1 Off Scale 24 4 1 2 Over Range 24 4 1 3 Standard Mode 25 4 1 4 Initial Setup Standard TSP Mode 25 4 1 5 Setting Upper and Lower Tolerance Limits 26 4 1 6 Reapportioning Measuring Range 27 4 2 Enhanced Mode 27 4 2 1 Enhanced Actual Mode 27 ...

Страница 5: ...ic Mode 28 4 2 2 1 Minimum Reading 28 4 2 2 2 Maximum Reading 28 4 2 2 3 Total Indicated Reading 29 4 2 2 4 Hold Update 29 4 2 2 5 Reset 29 5 0 MAINTENANCE 29 5 1 Battery Signal 29 5 1 1 Changing the Battery 30 5 1 1 1 Disassembly 30 5 1 1 2 Reassembly 31 5 2 Checking Accuracy 31 5 3 Cleaning the Spindle 34 5 3 1 Contact Points 34 5 4 Calibration 34 ...

Страница 6: ...Replacement Parts 37 6 2 Accessories 40 7 0 Specifications 41 8 0 Output Information 42 8 1 STD Maxum Output 42 8 1 1 Power Inputs 43 8 1 2 Signal Output 43 8 1 3 Hardwired 44 8 1 4 Possible Combinations 44 8 1 5 Signal Input 46 8 1 5 1 HOLD UPDATE 46 8 1 5 2 RESET ZERO Wake Up 46 8 2 ASCII Output 49 8 2 1 Protocol 50 ...

Страница 7: ...cal Characteristics ASCII 51 8 2 5 Power Input 51 8 3 Digimatic BCD Output 51 8 4 Theory of Operation 52 8 4 1 Digimatic Data Format 52 8 4 1 1 Timing Diagram for Digimatic Data Transfer Method 52 8 4 1 2 BCD Encoded Data Format 53 8 4 2 Electrical Characteristics 53 8 5 Mating Connectors 53 9 0 Quick Step Flow Chart 54 ...

Страница 8: ...III units are ruggedly built to withstand hard use and their gasketed case crystal and stem assemblies resist encroachment by most fluids However Maxum III Indicators Indicating Units and Digital Transducers should never be immersed Regularly inspect all seals and spindle boots to guard against fluid penetration Digital Output Models To prevent contaminants from entering the 6 or 10 pin digital ou...

Страница 9: ...are over range The Off Scale condition occurs when the fan display exceeds the analog scale and is indicated by a flashing segment at the most left or right segment location The Over Range con dition occurs whenever the digital reading is exceeded and is indicated by a blank display that shows both the polarity sign and the in mm units icon Unit is still active and not to be con fused with the Sle...

Страница 10: ...en 0 001 and 0 0005 in 0 01 and 0 005 mm resolutions for the 0 040 in 1 0 mm range and between 0 0005 and 0 0001 in 0 005 and 0 001 mm resolutions for the 0 0199 in 0 199 mm range Sleep Mode The Maxum III unit is designed with an auto power down fea ture to conserve battery life If it senses approximately 10 min utes of inactivity i e no spindle movement no buttons pushed no Digimatic data output ...

Страница 11: ...void collection of bad data It initially flashes as a warning then under continuous use eventually remains on so that no readings will be displayed Calibration Lockout Option Allows the entry into the calibration mode via an access key Order No 2240545 6 pin Order No 2240547 10 pin when plugged into the data output port Calibration is inaccessible without this Access Key Specific models only Setup...

Страница 12: ...atio Maxum III models ordered with this 4 5 ratio will read 0 008 inch on the indicators digital display when the spindle is moved 0 010inch in linear travel There are no other ratios available on this indicator This is a factory set option 2 1 1 Controls Standard Mode Makes use of 6 push button modes Left Limit Left Display Index Right Display Index Right Limit Autozero for selections in two oper...

Страница 13: ... Sets the right arrow at desired limit RESET To electronically set both the analog display and digital readout to zero 2 1 2 Controls Enhanced Mode Figure 3 MODE Shows the real time static measurement of the spindle in the indicator s measuring range while in Enhanced Mode see Sec tion 4 2 Enhanced Mode on page 28 When the mode but ton is used to activate the Enhanced function the indicator s anal...

Страница 14: ...ositive measurement seen by the indicated movement RESET Electronically sets both the analog display and digital readout to zero when in the Enhanced Actual or TIR modes Electronically sets both the analog and digital readout to the current spindle position location in the minimum or maximum modes This function can also be remotely triggered via the output port on specific models Section 8 0 Outpu...

Страница 15: ...o enter the selection menu of setup features NOTE The Setup Mode can only be entered while the unit is in both Standard Mode and then tsp true spindle position mode Refer to 4 1 Operating the Maxum III on page 25 Once in the Setup Mode simply press the corresponding button to toggle through the features and choices The RESET button toggles through the setup menu items and the HOLD button toggles t...

Страница 16: ...e 5 Shown in Millimeter Units 3 Press the HOLD button to toggle between inch in and metric mm units Notice the in mm icon indicates the selected units on the LCD display Figure 6 Shown in Inch Units 3 3 Changing Measuring Direction 1 Enter Setup Mode 2 Press the RESET button until the letter d shows in the last digital position of the LCD display The d indicates the Direction Setup feature ...

Страница 17: ...etter r shows in the last digital position of the LCD display The r indicates the digital Range Setup feature 3 Press the HOLD button to toggle between standard range and reduced range selections Notice on the LCD display that the digital readout will change from one measuring range to another Only Short Range Models have this selection available Figure 8 For Long Range Models the choice is fixed ...

Страница 18: ...ndicates the digital Range setup feature 3 Press the RESET button once to enter the Digital Resolu tion setup feature Note that there is no half digit icon used for this setup feature Figure 10 4 Press the HOLD button to toggle between standard digital resolution and high digital resolution selections Resolution selections are dependent on indicator model and digital range selection see Overlay Se...

Страница 19: ...elections Figure 12 Notice the fan display toggles between half full scale only half the LCD fan segments are on and full scale all the LCD fan segments are on This fan scale and full fan scale help the operator in deciding which overlay to use The fan scale indicates that the 25 0 25 overlay should be used The full fan scale indicates that either the 5 0 5 or 50 0 50 overlay should be used See th...

Страница 20: ...verlay Scale Once the pushbutton settings have been set if desired install the corresponding overlay onto the front of the Maxum III per table Overlay Selection Table on page 20 The following is a recommended procedure for installing and removing the over lay from the front of the Maxum III indicator ...

Страница 21: ...2239028 Rev D 3 7 1 Installation 1 Chose the correct color and overlay scale from the table above Overlay Selection Table Inch readout uses the green side of the overlay and metric mm uses the yel low side of the overlay Overlay Selection Table ...

Страница 22: ...he overlay is installed over the crystal operate the indicator to make sure the readings correlate to the set tings selected in the indicator Figure 15 Unit shown with yellow metric overlay 3 7 2 Removal NOTE This is a recommended removal process and not neces sarily the only method of removing the overlay This method will be least likely to cause any damage or scratching of the overlay or the pro...

Страница 23: ... see Figure 16 Make sure it is secure or flat 3 Simply pull up on the tape to remove the overlay 4 Carefully remove the tape from the overlay and discard the tape Do not leave the tape on the overlay for long periods of time Figure 16 Fold a piece of mending tape as shown to fashion a tab that can be used to pull the dial face after it has been taped to its surface Fashioned Pull Tab Mending Tape ...

Страница 24: ...format setup feature 3 Press the HOLD button to toggle through the following selections Figure 17 For more information on the data output formats see Section 8 0 Output Information on page 43 St Standard classic Maxum output format dl Digimatic BCD output format AS Serial ASCII output format Off Data Output is disabled and no output is provided Unit shown with Standard output Unit shown with Digim...

Страница 25: ... this transducer by its 1 00 in 25 4 mm diameter barrel Mounting brackets and racks are available to hold Digital Transducers and Indicating Units for use with fixture gages 4 1 1 Off Scale Whenever the digital reading exceeds the analog display range the last single analog display graduation will blink This signals that the remaining digital range is still operational however the analog range has...

Страница 26: ...ill be flashing 4 1 4 Initial Setup Standard TSP Mode This mode shows the actual position of the spindle in the Indi cator s measuring range When True Spindle Position is acti vated the Indicator s analog display changes to the alternate mode i e a normal Fan display changes to a Single Element dis play and vice versa Use a ballpoint pen or similar pointed instrument to activate switches Do not us...

Страница 27: ...Once set limits are retained in memory even when the Indicator is in its Sleep mode and remain set until changed If no limits are needed move them outside the normally used portion of the measuring range 1 Depress the spindle and press the Left Tolerance Limit button or press the appropriate display but ton to index the digital readout to the desired lower limit set point 2 Press and release the L...

Страница 28: ... the accuracy of the unit Measuring range cannot be reapportioned on Maxum III Indicator models where the reduced Digital Range of 0 199 mm has been selected 4 2 Enhanced Mode This mode operates according to the traditional Maxum Plus unit This is the dynamic measuring mode and is indicated by a dynamic Fan display and one solid tolerance arrow when out of tolerance in the Enhanced Mode When in En...

Страница 29: ...e two tolerance arrows disappear from the display 4 2 2 Enhanced Dynamic Mode The unit has to be in the Enhanced Actual Mode in order to enter into the full Enhanced Mode While in Enhanced Actual a press and release of the min TIR Hold or Max button enters into its corresponding selection The dynamic functions are described below 4 2 2 1 Minimum Reading Displays the smallest measurement only Press...

Страница 30: ...e the reading When pressed again thereby deactivating Hold the indicator resumes operation When the Hold function is active all other control buttons are disabled 4 2 2 5 Reset Resets the Dynamic Function for its next measurement In the Dynamic Function this button is used to reset the Dynamic Measurement and sets the indicator to start the next measurement The displayed value becomes the Minimum ...

Страница 31: ...wo captive screws that hold the battery compartment door in place Figure 20 A The screws are design to push the door away from the case allowing an easy grip for removing the door 2 Once the screws are completely unthreaded carefully lift the battery door off the rear case Figure 20 B 3 Remove battery as specified below in the CAUTIION note below Figure 20 C Figure 20 Alternately unscrew the Batte...

Страница 32: ...per seal of the battery compart ment For Indicating Units reconnect the Digital Transducer Pick up Indicator or Indicating Unit and observe display some or all of the display elements will be On Immediately depress and slowly release the measuring spindle to return the Indicator or Indicating Unit to its Power Down mode NOTE Whenever the battery is removed and replaced the Indicator or Indicating ...

Страница 33: ... TSP mode 3 Adjust the stand until the digital readout reads exactly zero Do not use Auto Zero 4 Remove the Zero block and place each of the other gage blocks under the measuring spindle Observe the digital reading for each Each reading should be within the allowable variation listed in the table on page 33 If not refer to Section 5 4 Calibration on page 35 ...

Страница 34: ...0199in 0 120in 0 00000 r 00005 0 130in 0 01000 0 139in 0 01900 0 100in 0 0400 0 120in 0 0200 6KRUW 5DQJH r 0 0400in 0 140in 00000 r 0004 0 160in 0 0200 0 180in 0 0400 1 12mm or 2 12mm 0 190 1 21mm or 2 21mm 0 100 6KRUW 5DQJH r 0 199mm 1 31mm or 2 31mm 0 000 r 0 001 1 41mm or 2 41mm 0 100 1 50mm or 2 50mm 0 190 4 0mm 1 000 4 5mm 0 500 6KRUW 5DQJH r 1 000mm 5 0mm 0 000 r 0 010 5 5mm 0 500 6 0mm 1 00...

Страница 35: ...sing a suitable cleaning agent If either is worn or damaged replace it 7 When components are clean and dry reassemble the spindle to the indicator or digital transducer Use new Retaining Ring do not re use the old one Do not lubricate Spindle assembly 5 3 1 Contact Points Maxum III Indicator and Digital Transducer models having an 0 375 in 9 5 mm diameter stem can use any regular 4 48 threaded ind...

Страница 36: ...ill show for a few seconds before returning to a live display The reverse fan display indicates the digital POT position If needed the POT may be reset to its center position by a press and release of the zero reset button 4 Once there is a live display place the Zero size gage block under the measuring spindle and adjust compara tor stand until the digital readout reads exactly zero Do not use Au...

Страница 37: ...le from Mahr Inc Providence RI U S A Contact your Mahr Federal represen tative in Providence Carefully pack items to prevent damage in shipment Include a brief description of the problem and the name address and telephone number of a person to contact if we have any questions Digital Range Range Type Zero Gage Block Reading with Zero Block should be Second Gage Block Reading with Second Block Shou...

Страница 38: ...Parts Contact Points Most 0D XP Qdicators and Digital Transducers are furnished with one of the following Contact Points PT 223 For 375 dia Stem 1 4 long radiused tip 4 48 thread PT 563 For 375 dia Stem 1 4 long radiused tip 4 48 thread for use with Lifting Lever EPT 1037 W1 For 8mm dia Stem 6 mm long radiused tip M2 5 thread EPT 1037 W2 For 8mm dia Stem 6 mm long radiused tip M2 5 thread for use ...

Страница 39: ...9034 Seal for battery door cover 1 2239010 Battery door 1 2239001 Screw Battery Door 2 requires special tool for assembly 2239002 Speed Nut Battery Door 2 requires special tool for assembly ERG 1046 O Ring Case 1 ESW 1270 Screw case captive 4 ERG 1044 O Ring used with ESW 1270 captive screw 4 ENT 1118 Nut Plug no output models Batteries 2239138 3 0Volt lithium battery Type CR123A 1400mA h ...

Страница 40: ...40 Maxuum III Digital Electronic Indicator 2239028 Rev D Spindle Assembly Parts ...

Страница 41: ... 0 50 2239054 Access Key 6pin output 2240545 Access Key 10pin output 2240547 Splash Cover ECV 1307 W1 Lug Back EBK 1006 Adjustable Slide Back EBK 1007 Rack Back EBK 1005 Screws for Mounting Backs ESW 1252 Serial Output Cable 6pinM to db9pinF 8 ft 2 5 m 2239036 Serial Output Cable 10pinM to db9pinF 8 ft 2 5 m 2239038 Digimatic Output Cable 6pinM 8 ft 2 5 m 2239035 Digimatic Output Cable 10pinM 8 ft...

Страница 42: ... 0005 in 0 005mm 0 0005 in 0 005 mm 0 0001 in 0 001 mm Total Spindle Travel 0 250 in 6 35mm 0 120 in 0 3 mm Pre Travel 0 020 in 0 5mm 0 010 in 0 3 mm Over Travel 0 030 in 0 8mm 0 030 in 0 8 mm Accuracy Standard Range 0 35 of Total Range 0 5 of Total Range Reduced Range N A 0 25 of Total Range Repeatability r One Least Digit r One Least Digit Gaging Force 3 4 oz 85 112 gM preloaded Operation Temper...

Страница 43: ...oper use and lack of compatibility could be cause for system com ponent malfunction A plastic cap covers the output receptacle when not in use The pin outs and description for each output format is described as follows 8 1 STD Maxum Output This format consisting of a clock signal 35 bit data stream and a plus minus signal has allowed for communication to virtually all data collection devices Becau...

Страница 44: ...Output The three basic signals output from the Maxum III are Clock clk out Digital stream dig out Sign sign 1 The Sign signal is logic high when the minus sign is visible The Clock is 16 384 kilohertz square wave signal which is active for 12 7 ms during valid data time otherwise this signal is in the Pin Signal Name Maxum III with 6 pin conn Signal Name Maxum III with 10 pin conn 1 5V 5V 2 Clock ...

Страница 45: ...ent code The entire digital stream is 2 20 milliseconds in length The sign data is low or high for 0 4 ms before and 4 0 ms after the digital start pulse The digital line start pulse and clock are used as the main indicators for data input The Maxum III has the buffered signals available at the output connector 8 1 3 Hardwired Digit 1 All segment connected together including the period There is no...

Страница 46: ... 3 d3 4 c3 5 b3 6 a3 7 f3 8 g4 9 e4 10 d4 11 c4 Cont 12 b4 13 a4 14 f4 15 g5 16 e5 17 d5 18 c5 19 b5 20 a5 21 f5 22 A1 P1 all segments connected 23 X see Table 1 24 X see Table 1 25 X see Table 1 26 B2 b2 c2 connected 27 A2 a2 d2 e2 f2 connected 28 X or mm 29 P3 30 low battery warning 31 Upper limit X for Maxum Plus Enhanced Mode 32 Analog seg 0 33 P2 34 lower limit X for Maxum Plus Enhanced Mode ...

Страница 47: ...rol performs a toggle function to either HOLD or UPDATE the Maxum III dynamic measure ments In this manner the unit can be made to freeze the last set of readings Actual MAX MIN TIR After UPDATE has been activated the display will resume oper ations and the Actual MAX MIN and TIR values are updated as if there had been no interruption The assertion signal is a momentary logic 110 GND of at least 1...

Страница 48: ...ntary logic O GND of at least 100 ms duration INOTE In the Standard Mode grounding the input causes the unit to display the quantity O in both the analog and digital displays This input is an external zeroing control As with nor mal operation unit must be on scale for it to zero the gage ...

Страница 49: ...49 Maxuum III Digital Electronic Indicator 2239028 Rev D Clock Stops 1 8 ms after last bit Sign is valid 1 8 ms after last data bit LOCK 3TARTS MS BEFORE SIGN OR MS BEFORE 3TART PULSE ...

Страница 50: ...and HOLD capability Maxum III models using the 6 pin or 10 pin connector and out put format selected for ASCII have a pin out designation is as follows in the table on the right Pin Signal Name Maxum III with 6 pin conn Signal Name Maxum III with 10 pin conn 1 5V 5V 2 Clock Out Clock Out 3 Digital Out Digital Out 4 Sign 1 Sign 1 5 Signal Com Signal Com Gnd 6 Shield Shield 7 N A Not for customer us...

Страница 51: ...P ASCII space character LF ASCII Line Feed character I indication of inch measurements M indication of mm measurements s indication of measurement polarity d indication of dynamic display mode Can assume one of the following When HOLD function is ACTIVE A indication of actual mode M indication of maximum mode L indication of minimum mode T indication of TIR mode When HOLD function is INACTIVE a in...

Страница 52: ...uitry 8 3 Digimatic BCD Output This method is a clocked serial BCD data stream consisting of 13 digits totaling 52 bits emulating Mitutoyo s format The dig ital output permits the LCD displayed displacement to be trans ferred to an external device such as a printer personal computer or data collection system The output is accessed via a 6 pin or 10pin connector The remote HOLD or UPDATE capa bilit...

Страница 53: ...transition from low high or high low One display value is transmitted for each SREQ received There is a one clock delay between each BCD digit 8 4 1 Digimatic Data Format 8 4 1 1 Timing Diagram for Digimatic Data Transfer Method DIGIMATIC DATA FORMAT b0 b1 b2 b3 b0 b1 b2 b3 b0 b1 b2 b3 b0 b1 b2 b3 d1 d2 d3 d4 d5 d6 d7 d8 d9 d10 d11 d12 d13 ALL F SIGN 0 8 MSD LSD MEASUREMENTS UNITS 0 mm 8 inch mm d...

Страница 54: ...xternal equipment Vcc 8 5 Mating Connectors EXAMPLES OF BCD ENCODED DATA FORMAT EXAMPLE 1 2 3 4 5 mm d1 d2 d3 d4 d5 d6 d7 d8 d9 d10 d11 d12 d13 F F F F 0 0 1 2 3 4 5 4 0 EXAMPLE 0 3 4 9 mm d1 d2 d3 d4 d5 d6 d7 d8 d9 d10 d11 d12 d13 F F F F 8 0 0 0 3 4 9 4 0 EXAMPLE 0 1 9 7 5 in d1 d2 d3 d4 d5 d6 d7 d8 d9 d10 d11 d12 d13 F F F F 8 0 0 1 9 7 5 5 1 EXAMPLE OFF SCALE CONDITION d1 d2 d3 d4 d5 d6 d7 d8 ...

Страница 55: ...55 Maxuum III Digital Electronic Indicator 2239028 Rev D 9 0 Quick Step Flow Chart ...

Страница 56: ...all of the specifications shown in this document are subject to change without notice Other product and company names listed are trademarks or trade names of their respective companies Document Part No 2239028 Rev D Mahr Inc 1144 Eddy Street Providence RI 02905 www mahr com Tel 401 784 3100 Toll Free 800 343 2050 ...

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