NCI 7620U User Manual - Review Scale Settings

Manual is about: NCI 7620U Bench Scale User's manual

Summary of 7620U

  • Page 1

    User’s manual model 7620u bench scale.

  • Page 2: Specifications At Any Time.

    Model 7620u bench scale user’s manual 2 risk of electrical shock. Do not remove cover. No user serviceable parts inside. Refer servicing to qualified service personnel. Weigh-tronix reserves the right to change specifications at any time. Caution 10/23/03 7620u_u.P65 pn 7424-16232e e1 printed in usa.

  • Page 3: Table of Contents

    Model 7620u bench scale user’s manual 3 specifications ..................................................... 4 initial setup ......................................................... 7 operation ............................................................ 8 7620u menu structure.........................

  • Page 4: Specifications

    Model 7620u bench scale user’s manual 4 specifications 7620-30 (6-30) 0-6 kg x 0.001 kg n 1 =6000 d 6-30 kg x 0.005 kg n 2 =6000 d 7620-30 (5-30) 0-5 kg x 0.001 kg n 1 = 5000 d 5-30 kg x 0.005 kg n 2 = 6000 d 7620-35(6-35) 0-6 kg x 0.001 kg n 1 =6000 d 6-35 kg x 0.01 kg n 2 =3500 d 7620-50 0-5 kg x ...

  • Page 5: Power Requirements

    Model 7620u bench scale user’s manual 5 power requirements operating temperature construction overload protection display scale leveling zero window under capacity limits over capacity limits sealing 0.1 amp maximum +5º c to + 40º c 10% to 95% rh (non-condensing) die cast aluminum base and load brid...

  • Page 6: Internal Resolution

    Model 7620u bench scale user’s manual 6 internal resolution dynamic response communications 1 part in 2,000,000 the time interval of weight applied to scale until stable weight is displayed. 0 - 1000d, 350 msec 1000d+, 500 msec maximum mean average factory default settings: 9600 baud, 7 data bits, e...

  • Page 7: Initial Setup

    Model 7620u bench scale user’s manual 7 initial setup unpacking the scale installing the scale 1. Check container for any obvious evidence of damage. 2. Remove contents of the shipping container. 3. Inspect the scale for shipping damage. Immediately report any damage to the shipper. 1. Mount the sca...

  • Page 8: Operation

    Model 7620u bench scale user’s manual 8 if the scale is outside the ±10% zero window, center dashes are displayed.“_ _ _ _” reapply power to reset the initial zero setting. Operation power up test sequence if ram or rom error is reported, you must press the f1 key to acknowledge the condition. Perfo...

  • Page 9: Operational Controls

    Model 7620u bench scale user’s manual 9 operational controls remote display accessing the menu mode accessing the gravity setting mode zero key – the zero key will zero the scale if weight is stable, functions as the no or scroll key in the menu mode, and as the increase key in the gravity mode. F1 ...

  • Page 10: Figure 1

    Model 7620u bench scale user’s manual 10 figure 1 7620 u switch location menu mode gravity mode there are three modes available to you with switch 1 in the menu mode or open position. They are as follows: 1. Diag mode – to test areas of the scale’s function 2. Config mode – to configure your scale f...

  • Page 11: Figure 2

    Model 7620u bench scale user’s manual 11 figure 2 7620u menu structure (1) to change the ‘local’ gravity setting, press the zero key to increase the value, or press the f1 key to decrease the value. When done, set switch 2 back to the closed position. Table 1 capacity alternate calibration weights 5...

  • Page 12: Diagnostics Mode

    Model 7620u bench scale user’s manual 12 diagnostics mode diagnostic (diag) mode the diagnostic (diag) mode menu lets you test specific areas of the scale’s function. These areas are: display (display) – shows the version and revision of the software, followed by a display segment test. Ram (ra) – p...

  • Page 13: Step-By-Step

    Model 7620u bench scale user’s manual 13 step-by-step instructions for diag mode press the zero key to scroll through lists of selections press the f1 key to make a selection follow these steps to access the tests in the diag menu (refer to figure 2). 1. From normal weighing mode, move switch 1 to t...

  • Page 14: 8. Press The Zero Key…

    Model 7620u bench scale user’s manual 14 diag will flash every 10 seconds during the high resolution test to remind you that you are doing a test and not seeing normal weight readings. 8. Press the zero key… “i-o” is displayed. This stands for the input/output test. 9. With a loopback connector in p...

  • Page 15: Configuration Mode

    Model 7620u bench scale user’s manual 15 configuration mode configuration (config) mode 18. Press the f1 key to stop the test. 19. When you are finished with the test, press the zero key, until “done” is displayed. Press the f1 key, or place switch 1 back to normal mode to return to normal weighing ...

  • Page 16: Step-By-Step

    Model 7620u bench scale user’s manual 16 step-by-step instructions for config mode follow these steps to access and configure the items in the config menu. Refer to figure 2. 1. From the diag display press the zero key, or from normal weighing mode, move switch 1 to menu mode or open position, then ...

  • Page 17: Calibration Mode

    Model 7620u bench scale user’s manual 17 calibration mode 10. Press the f1 key. Parity selection is stored. 11. Press the zero key… “prot” is displayed. 12. Press the f1 key… the current setting is displayed. Use the zero key to toggle between the four choices: “nci std, h-100, 7611, nci sma.” 13. P...

  • Page 18: 5-50.”

    Model 7620u bench scale user’s manual 18 division size for a scale calibrated as a: 6-30: 0-6 kg x 0.001 kg 6-30 kg x 0.005 kg 5-30: 0-5 kg x 0.001 kg 5 -30 kg x 0.005 kg 6-35: 0-6 kg x 0.001 kg 6-35 kg x 0.01 kg 5-50: 0-5 kg x 0.005 kg 5-50 kg x 0.01 kg if this procedure is attempted without any ca...

  • Page 19: Gravity Mode

    Model 7620u bench scale user’s manual 19 gravity mode the cal-gr and loc-gr values may be viewed anytime. See review scale setting section. Warning: using this feature in “sealed” applications may be subject to approval by the appropriate governing agency at the end-users site. Gravity value roles ‘...

  • Page 20: Review Scale Settings

    Model 7620u bench scale user’s manual 20 press the zero key to move to the next item in the menu. Press the f1 key to select the displayed item to view. When the scale is calibrated, the cal-gr value is automatically set equal to the loc-gr setting. Therefore, it is recommended that you verify the l...

  • Page 21: Communications

    Model 7620u bench scale user’s manual 21 communications interface cable nci std communications protocol the nci 7620u scale comes factory configured as a serial rs-232 interface device. There is one 9-pin de type female connector accessible at the rear of the unit. The functional pinout of the scale...

  • Page 22: Standard

    Model 7620u bench scale user’s manual 22 standard commands optional commands w scale response xxxx.Xxuu hhh returns decimal decimal weight, units and scale status s scale response hhh returns scale status z scale response hhh scale is zeroed, returns status h scale response xxxx.Xxxuu hhh returns de...

  • Page 23: Error Codes

    Model 7620u bench scale user’s manual 23 error codes h-100 communications protocol the “h” command is to be used for non- type approved applications only. 7611 or nci sma the h-100 communications protocol is the same as nci std serial communications protocol with the following exceptions: the h comm...

  • Page 24: Troubleshooting

    Model 7620u bench scale user’s manual 24 troubleshooting perform the following steps in the order pre- sented until the described problem is corrected. If the problem cannot be corrected, contact an authorized weigh-tronix service provider. No power (display is blank) 1. Check that the following pow...

  • Page 25: Weight Is   Displayed

    Model 7620u bench scale user’s manual 25 scale will not return to zero, or incorrect weight is displayed 1. Press the zero key. 2. Check for interference of weighing plat- form. 3. Power off, remove all items from the platter, and then power on the scale. 4. Recalibrate the scale. 5. Replace the qdt...

  • Page 26: Display Shows Upper “

    Model 7620u bench scale user’s manual 26 display shows upper “ _ _ _ _ “ dashes (indicates the scale is over capacity.) 1. Remove all items from the scale. 2. Press the zero key. 3. Power off, and then power on the scale. 4. Recalibrate the scale. 5. Replace the qdt load cell. Scale is not transmitt...

  • Page 27: Spare Parts Listing

    Model 7620u bench scale user’s manual 27 spare parts listing description part number keyboard panel 1163-16188 display pcb 7405-15990-01 i/o pcb 7405-15550-02 power supply -230 vac 1148-15833 rs-232 cable 1140-13842 load cell 32 kg (5-30, 6-30, 6-35) 7153-15694-23 load cell 50 kg (5-50) 7153-15694-5...

  • Page 28: Notes

    Model 7620u bench scale user’s manual 28 notes.

  • Page 29: Notes

    Model 7620u bench scale user’s manual 29 notes.

  • Page 30: Notes

    Model 7620u bench scale user’s manual 30 notes.

  • Page 31

    Model 7620u bench scale user’s manual 31.

  • Page 32

    1000 armstrong drive fairmont, mn 56031 telephone: 507-238-4461 facsimile: 507-238-4195 e-mail: service@wt-nci.Com www.Wt-nci.Com.