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CHAPTER 1 GETTING STARTED

Ohaus Corporation www.ohaus.com

10

Navigator Series Service Manual

1.6 SCALE OPERATION

This section contains information on the basic operation of the scale.

The included AC adapter may be
used to power the scale when battery
power is not available.

Figure 1-1. Power Connection

1.6.1 Overview of the Controls

Figure 1-2. Navigator (non-approved models) Overlay

Figure 1-2. Navigator (approved models) Overlay

Input Jack

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Содержание Navigator NV212

Страница 1: ...SERVICE MANUAL Navigator Series Scales...

Страница 2: ......

Страница 3: ...2 DIAGNOSTIC GUIDE 16 3 MAINTENANCE PROCEDURES 19 3 1 PREVENTIVE MAINTENANCE 19 3 2 OPENING THE SCALE 19 3 3 REPLACING THE LOAD CELL 21 3 4 REPLACING THE PRINTED CIRCUIT BOARD AND DISPLAY 23 3 5 REPL...

Страница 4: ...ACTOR GEO 40 B 6 FILTER SETTINGS 41 B 7 STABILITY SETTING 41 B 8 AUTO ZERO SETTING 41 B 9 EXPANDED RESOLUTION E PAnd 42 B 10RESET 42 B 11END 43 APPENDIX C SOFTWARE SERVICE TOOL INSTRUCTIONS 44 C 1 HAR...

Страница 5: ...eographical Adjustment Values 48 LIST OF ILLUSTRATIONS FIGURE NO TITLE 1 1 Power Connection 10 1 2 Navigator Overlay 10 1 3 Navigator Display Indicators 11 1 4 Menu Lock Switch 12 3 1 Pan Support and...

Страница 6: ......

Страница 7: ...ng a scale and after service Appendix B Service Calibration Describes the Service Menu and sub menus which allow authorized service personnel to perform factory Linearity and Span calibrations no pre...

Страница 8: ...uthority Before returning the scale to service an approved representative of the local Weights and Measures authority must certify the scale Ohaus does not generally recommend the repair of an approve...

Страница 9: ...sitivity 1 MPE 1 MPE NVL non Approved Model NVL511 NVL1101 NVL2101 NVL5101 NVL10000 NVL20000 Capacity g 510 1100 2100 5100 10000 20000 Repeatability g 0 2 0 2 0 2 1 2 2 Linearity g 0 2 0 2 0 2 1 2 2 O...

Страница 10: ...0 4 2 2 2 Linearity g 0 2 0 4 2 2 2 OCL g 1 MPE 1 MPE 1 MPE 1 MPE 1 MPE Zero Drift 1e 5 C 1e 5 C 1e 5 C 1e 5 C 1e 5 C Span Sensitivity 1 MPE 1 MPE 1 MPE 1 MPE 1 MPE NVT EC OIML Type Approved Model NVT...

Страница 11: ...ac 7 x 17 x 38 x 74 x 144 x 179 x lb oz dec NA 1lb 1 99oz x 0 01oz 2lb 6 8oz x 0 01oz 4lb 10 07oz x 0 01oz 9lb 0 63oz x 0 01oz 11lb 3 9oz x 0 02oz lb oz frac NA 1lb 1 oz x oz 2lb 6 oz x oz 4lb 10oz x...

Страница 12: ...x 0 05 NV Models EC OIML Type Approved Units NV311M NV3100M ct 2550 x 0 5 15500 x 5 g 311 x 0 1 3100 x 1 kg NA 3 1 x 0 001 NV Models NTEP MC Type Approved Units NV311N NV3100N ct 2550 x 0 5 15500 x 5...

Страница 13: ...0 74oz x 0 02oz 44lb 1 5oz x 0 05oz lb oz frac 1lb 1 oz x oz 2lb 6 oz x oz 4lb 10oz x oz 11lb 3 oz x oz 22lb 0 oz x oz 44lb 1 oz x oz ozt 16 395 x 0 005 35 365 x 0 005 67 517 x 0 005 163 96 x 0 02 321...

Страница 14: ...x 0 02oz 22lb 0oz x 0 02oz 32lb 0oz x 0 05oz lb oz frac 3lb 3 oz x oz 6lb 6 oz x oz 16lb 0oz x oz 22lb 0oz x oz 32lb 0oz x oz ozt 46 665 x 0 005 93 33 x 0 01 233 32 x 0 02 320 85 x 0 02 466 65 x 0 05...

Страница 15: ...6 4 x 0 002 16 x 0 005 NVT Models NTEP MC Type Approved Units NVT1601N NVT3200N NVT6400N NVT16000N ct 8000 x 5 16000 x 5 32000 x 10 80000 x 50 g 1600 x 0 5 3200 x 1 6400 x 2 16000 x 5 kg 1 6 x 0 0005...

Страница 16: ...ection contains information on the basic operation of the scale The included AC adapter may be used to power the scale when battery power is not available Figure 1 1 Power Connection 1 6 1 Overview of...

Страница 17: ...escription Long Press Toggles through active units Short Press in Menu Toggles through available settings Function Mode Back Short Press Selects function setting Long Press Selects active Mode Short P...

Страница 18: ...d value has become stable 2 Indicates that the indicated value is within the center of zero 3 Symbols for weighing units or modes 4 Arrows indicate the current operation mode of the IR Sensors 5 High...

Страница 19: ...y the approval agency To gain access to these submenus see the next section 1 7 LEGAL FOR TRADE LFT When the scale is set for LFT on M and N models the following menu settings cannot be accessed chang...

Страница 20: ...is message confirms the proper setting of the LFT mode and the hardware lock switch Verify proper scale operation and that the required legal requirements are met CAL is locked available modes and uni...

Страница 21: ...1 GETTING STARTED Navigator Series Service Manual 15 Ohaus Corporation www ohaus com TABLE 1 6 NAVIGATOR SERVICE MENU STRUCTURE Service Menu Menu Items Ramp Lin Span Geo Filter Stability AZT Expand Re...

Страница 22: ...tion 3 6 3 Use the error code table for solutions for specific codes 4 Use the Diagnostic Guide locate the symptom then follow the suggested remedies in order 2 2 DIAGNOSTIC GUIDE Table 2 1 is a Diagn...

Страница 23: ...nearity calibration Unstable environment vibration air currents or changing temperature Move scale to suitable location allow scale to stabilize its temperature Bad load cell Replace load cell Poor re...

Страница 24: ...n scale service menu to check Load Cell and then calibrate Load Cell is damaged Replace Load Cell Err 8 3 Load Overload cap 9e Load exceeds balance maximum capacity remove weight from the pan Err 8 4...

Страница 25: ...the scale using a damp cloth with warm water CAUTION DO NOT USE CHEMICAL CLEANERS OR SOLVENTS OF ANY TYPE SOME CLEANERS ARE ABRASIVE AND MAY AFFECT THE SCALE S FINISH 3 Check the Power Cord for broken...

Страница 26: ...an Support Conductive Rubber Caps 3 Remove the Pan Support by removing the two screws shown in Figure 3 1 4 Remove the 5 screws holding the Top and Bottom Housings in place See Figure 3 2 Note NV mode...

Страница 27: ...directly to the PCB Before disconnecting the cable record the wire colors and their location on the PCB Hint A digital picture is an easy and reliable record Disconnect the cable connecting the PCB t...

Страница 28: ...ews so that the load cell can be aligned in the housing While holding the load cell fully tighten the screws The screws should be tight enough so that the load cell does not move when pushed from the...

Страница 29: ...wires through their holes check that the new assembly is seated properly on the PCB and then solder the lead wires 3 5 REPLACING THE FUNCTION LABEL The Function Label may need to be replaced See Chapt...

Страница 30: ...iver Each adjustment screw should contact the Base when 120 to 150 of the scale capacity is placed in the center of the 4 quadrants of the scale The Top Housing must be removed to visually check if th...

Страница 31: ...scales must meet the requirements of ASTM Class 4 or OIML F2 Tolerance The mass values are listed in Table 4 1 TABLE 4 1 CALIBRATION MASS VALUES Model Span Calibration mass Linearity Calibration masse...

Страница 32: ...the required batteries 2 Plug the Power Cord into a suitable power source 4 3 SEGMENT DISPLAY TEST Turn the scale on and ensure that all segments are enabled and displayed briefly This is a Segment Di...

Страница 33: ...2 1 MPE NVT3201 1 2 2 3 NVT3200 N or M 1 1 2 1 MPE NVT6400 N or M 1 1 2 1 MPE NVT6401 1 2 2 3 NVT10001 1 2 2 3 NVT16000 1 2 2 3 NVT16000 N or M 1 1 2 1 MPE NOTE The following performance tests are use...

Страница 34: ...5 2 Repeatability Test The repeatability specification is defined as the Standard Deviation value derived from a set of weight readings This test uses more weight data than the Precision Test and will...

Страница 35: ...Deviation Square Root of sum of Delta x Delta 9 5 Add the ten readings and divide the total by 10 to find the Mean average 6 Mean Reading 1 Reading 2 Reading 3 Reading 4 Reading 5 7 Reading 6 Reading...

Страница 36: ...g NV3100 N or M 750g 750g 1500g 2250g NVL5101 1250g 1250g 2500g 3750g NVL10000 2500g 2500g 5000g 7500g NVL20000 5000g 5000g 10000g 15000g NVT1601 400g 400g 800g 1200g NVT1601 N or M 400g 400g 800g 120...

Страница 37: ...ve the mass halfway between the center and the edge to the front of the Pan Note any differences in the displayed weight reading 9 Repeat the test for the back left and right position of the Pan 10 Ma...

Страница 38: ...f the reading at point B is negative file at points 1 and 2 STRAIGHT ACROSS 9 If the reading at point C is negative file at points 2 and 3 AT AN ANGLE 10 If the reading at point D is negative file at...

Страница 39: ...ale in the field NOTE In all cases where a part is replaced the scale must be thoroughly checked after the replacement is made The scale MUST meet the parameters of all applicable specifications in th...

Страница 40: ...CHAPTER 5 PARTS LISTS DIAGRAMS Ohaus Corporation www ohaus com 34 Navigator Series Service Manual 5 1 HOUSING INTERNAL PARTS Figure 5 1 Navigator NVL and NVT Housing Internal Parts...

Страница 41: ...Housing Top No Labels 5 Housing Bottom Shipping Lock 6 Load Cell 7a Main PCB LCD 7b Main PCB LED 8a LCD Display and Backlight 8b LED Display 9 Cable Kit Power Adapter Jack Cable shown 10 Level Bubble...

Страница 42: ...2 Press Yes to enter the sub menu SPAN will be the first menu item Press Yes again to accept the display will show a flashing C while the zero point weight data is stored C 3 The specified calibratio...

Страница 43: ...ile a zero point weight data is stored C 4 The first linearity calibration point weight value will appear Place the weight on the pan Note Early production scales required a Yes press to continue The...

Страница 44: ...e is increased The ramp display should remain constant without fluctuations If you press Yes to select Ramp a number appears It should be constant Add masses from minimum to maximum capacity The readi...

Страница 45: ...ds and advances to SPAN Done Press Yes to confirm a span calibration SpaN B 4 SPAN CALIBRATION Span calibration from the service menu allows you to set a new zero and maximum setting This is distinct...

Страница 46: ...accurately calibrate the scale at a location other than the location where the scale is to be used Prior to calibration the Geo Factor is set to correspond to the geographical location where the cali...

Страница 47: ...etting menu FiLtEr The current filter setting is displayed Press No to increment the setting L2 Press Yes to accept the displayed value and advance to the next menu item Stability L3 B 7 STABILITY SET...

Страница 48: ...e next menu item LFT Set 5d B 9 EXPANDED RESOLUTION E PAnd E PAnd sets the readability to 1 10th of the standard readability That is if standard readability is 01 with E PAnD on it would be 001 Raw sc...

Страница 49: ...B 11 END Accepting End will exit the Service Menu In the Service Menu press No until EnD appears Press Yes to exit the service menu or No to advance to the ramp menu setting When the Service Menu is e...

Страница 50: ...this setting is left ON the scale will shut off during configuration 2 Install the RS232 Interface Kit into the scale Follow the instructions in the RS232 Interface Kit User Manual 3 Plug the cable in...

Страница 51: ...www ohaus com Figure C 2 Com Port Configuration screen 9 Click the Diagnostics tab to test the communications See Figure C 3 Figure C 3 Diagnostic screen Enter a P command The scale should respond wit...

Страница 52: ...as old LED display store this data into EEPROM New LED version 1 MFG Enable service mode 2 esc NLED Define current display as old LED display store this data into EEPROM C 3 CONFIGURING THE SCALE If...

Страница 53: ...us Corporation www ohaus com 3 Click Start 4 The bar is a graphical measure of the configuration progress 5 When the downloading is complete turn the scale off 6 Turn the scale on and perform a Servic...

Страница 54: ...1 54 41 05 05 06 06 07 07 08 08 09 09 10 10 11 11 12 12 13 13 14 14 15 15 16 16 17 17 18 18 19 19 20 20 21 21 22 04 05 05 06 06 07 07 08 08 09 09 10 10 11 11 12 12 13 13 14 14 15 15 16 16 17 17 18 18...

Страница 55: ...59 32 60 49 60 49 62 09 62 09 63 30 63 30 64 55 64 55 66 24 66 24 67 57 67 57 69 35 69 35 71 21 71 21 73 16 73 16 75 24 75 24 77 52 77 52 80 56 80 56 85 45 85 45 90 00 22 23 23 24 24 25 25 26 26 27 27...

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Страница 58: ...poration all rights reserved Registered trademark of Ohaus Corporation The information contained in this manual is believed to be accurate at the time of publication but Ohaus Corporation assumes no l...

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