Ohaus Nv123 Navigator Series Portable Precision Balances Instruction Manual

Navigator™ Series Balances
Instruction Manual

Navigator™

INTRODUCTION

This manual contains installation, operation, and maintenance instructions for the Navigator™Series.
Please read the manual completely before using the balance.

Definition of Signal Warnings and Symbols

WARNING
For a hazardous situation with medium risk, possibly resulting in injuries or death if not avoided.

CAUTION
For a hazardous situation with low risk, resulting in damage to the device or the property or in loss of data, or injuries if not avoided.

Attention 
For important information about the product

Note
For useful information about the product’s General hazard

 Electrical shock hazard

 Safety Precautions

CAUTION: Read all safety warnings before installing, making connections, or servicing this equipment. Failure to comply with these warnings could result in personal injury and/or property damage. Retain all instructions for future reference.

• Verify that the AC adapter’s input voltage range and plug type are compatible with the local AC main power supply.
• Position the instrument such that the AC adapter can be easily disconnected from the wall socket.
• Position the power cord so that it does not pose a potential obstacle or tripping hazard.
• Operate the equipment only under ambient conditions specified in these instructions.
• The equipment is for indoor use only.
• Do not operate the equipment in hazardous or explosive environments.
• Only use the equipment in dry locations.
• Only use approved accessories and peripherals.
• Disconnect the equipment from the power supply when cleaning.
• Service should only be performed by authorized personnel.

Intended Use

Use the instrument exclusively for weighing as described in the operating instructions. Any other type of use and operation beyond the limits of technical specifications without written consent from OHAUS is considered as not intended. This instrument complies with current industry standards and the recognized safety regulations; however, it can constitute a hazard in use. If the instrument is not used according to these operating instructions, the intended protection of the instrument may be compromised and OHAUS assumes no liability.

Controls

The IR Sensors can be activated by a hand or other object that is placed about 12mm (¹/2 inch) above the sensor location. The sensor activation distance will vary based on the reflective nature of the object. If unwanted activations occur due to unique situations the sensor can be turned off.

*Availability of IR Sensor is dependent on model and region.

 INSTALLATION

Transportation Lock

The Transportation Lock is located under the balance. Rotate the pointer to the unlocked position.

Location

Use the balance on a firm, steady surface. Avoid locations with the excessive air current, vibrations, heat sources, or rapid temperature changes.
Adjust the leveling feet so the bubble is centered in the circle.

Power

The AC Adapter is used to power the balance when battery power is not needed.

Battery installation (without optional internal battery):
Remove the battery cover and install 4 batteries using the polarity indications as shown in the compartment.

Optional rechargeable battery*
Balances with the optional rechargeable battery will need to be charged for 12 hours before the balance can be operated on battery power for the first time. The battery is protected from overcharging so the balance can remain connected to the AC power. When the battery is fully charged the battery indicator on the display will stop blinking.

To remove the rechargeable battery option and install C cell batteries, reference the Recharging Battery Option instruction manual for step-by-step instructions as well as disposal instructions.

CAUTION: The risk of explosion can occur if the rechargeable battery is replaced with the wrong type or if it is not properly connected.

Note:

After power is on, it is recommended to warm up the balance for at least 5 minutes before using it.
*Availability of IR Sensor is dependent on model and region.

 Initial Calibration

When the balance is first installed it should be calibrated to ensure accurate results.

Press and hold Menu-Cal until (Menu) is displayed. When the button is released, the display will display. Press Yes to accept, will then be shown. Press Yes again to begin the span calibration. blinks while zero reading is stored. Next, the display shows the calibration weight value. Place the specified calibration mass on the pan. blinks while the reading is stored. The balance returns to the previous application mode and is ready for use.

OPERATION

All modes except for weighing must be activated in the User Menu before they are available, see
Section 4.

Weigh Mode

1. Press and hold Mode until (Weigh) is displayed.
2. If required, place an empty container on the pan and press Tare.
3. Add material to the container. The display shows the weight of the material.

Parts Counting Mode

This mode counts large numbers of items based on the weight of a reference count.

1. Place an empty container on the pan and press Tare.
2. Press and hold Mode until (Count) is displayed. (Clear Average Piece Weight) will then display.
3. Press No to use the stored APW. Proceed to step 6.
4. Press Yes to establish an APW. The balance will then display the stored sample size, i.e. .Press No or Back to toggle the choices (5, 10, 20, 50 or 100).
5. Put the indicated number of pieces on the pan then press Yes to calculate the APW. The display shows the piece count. Note: Press Function to view the current APW.
6. Add additional pieces until the desired count is reached.
7. To clear the stored APW press and hold Mode until is displayed. Press Yes when is displayed.

Percent Mode

This mode measures the weight of a sample as a percentage of a reference weight.

1. Place an empty container on the pan and press Tare.
2. Press and hold Mode until is displayed. (clear reference) will then display.
3. Press No to use the stored reference weight and proceed to step 6.
4. Press Yes to establish a new reference. Balance will now display.
5. Add the desired reference material to the container. Press Yes to store the reference weight.
   The display shows 100%.
   Note: Press Function to view the current reference weight.
6.  Replace the reference material with the sample material. The display shows the percentage of the sample compared to reference weight.
7. To clear the stored reference press and hold Mode until is displayed. Press Yes when is displayed.

Checkweigh Mode

This mode sets low and high weight limits for portion control processes.

1. Press and hold Mode until (Check) is displayed. (clear references) will then display.
2. Press No to use the stored reference weight limits and proceed to step 5.
Note: Press Function to view the low and high reference weight limits.
3. Press Yes to establish new reference values. The balance will then display . Press Yes to view the “Low” limit value. Press Yes to accept or No to edit the “Low” limit value. The stored value then displays with the first digit highlighted . Repeatedly press No until the desired number appears. Press Yes to accept and highlight the next digit. Repeat until all the digits are correct. Press Yes to accept the “low” limit value, [Set. Hi] will be displayed.
4. Repeat the same procedure to accept or edit the “high” value.
5. Place sample material on the Pan. The “Accept” indicator will now show that the sample weight is within the acceptable range.
6. To clear the stored reference values press and hold Mode until is displayed. Press Yes when is displayed.

SETTINGS

The User Menu allows the customizing of balance settings.
Note: Additional Sub-Menus may be available if Interface Options are installed. See Interface User Manual for the additional setting information.

Menu Navigation

User Menu:

* Note: Available settings vary by models and regions
**Availability of IR Sensor is dependent on model and region.

Press and hold Menu until (Menu) is displayed. When released the first sub-menu(Cal) will be shown.

Press Yes to enter the displayed sub-menu or press No to advance to the next.
Selecting a sub-menu will display the first menu item. Press Yes to view the menu item setting or press No to move to the next menu item. When viewing the setting, press Yes to accept the setting, or press No to change the setting. When is displayed, press Yes to return to the sub-menu selections or No to return to the first item in the current menu.

Cal Sub-Menu

• Span (yes, no) – Initiates a span calibration procedure (zero and span). A span
  calibration is important when initially setting up the balance.
• Lin (yes, no) – Initiates a linearity calibration procedure (zero, mid-point and span).

Setup Sub-Menu

•  Back Light (on,off, Auto )-When Back light is set to “on” the balance will always “on”.
  When Back light is set to “Auto” the balance will turn on when a button is pressed or the display weight changes.
• Auto Off (on, off) – When Auto Off is set to “on” the balance will turn off automatically after 5 minutes of inactivity. Auto off is used to save battery power.
• IR Sensor (Off, Tare, Function, Print, Zero, Display) – These settings determine the role of the IR Sensor. “Zero”, “Print”, “Function” or “Tare” allows the IR sensor to act the same as the related button. “Display” activates the display if Display-Auto is set. “Off” disables the sensor.*
•  Filter (L1, L2 ,L3,L4 ) – set the amount of signal filtering

• Auto Zero Tracking (OFF,0.5d,1d,3d,5d,8d,10d) – Set the automatic zero tracking functionality. The display will maintain zero until a change of  0.5d,1d,3d,5d,8d,10d” divisions per second has been exceeded.
•  Stable (0.5d, 1d, 2d,5d) – Set the amount of the reading can vary while the stability symbol remains on.
• Stable Compensation (on, off) – Set the automatic stable tracking functionality. Set it “off” for dosing or filling application.

Note: Bold always represents factory default Value
*Availability of IR Sensor is dependent on model and region.

Mode Menu

This sub-menu activates modes so they will be available for use with the Mode button. Weigh mode is always active.

• Parts Count(on, off) – Set on for the mode to be active.
• Percent (on, off) – Set on for the mode to be active.
• Check Weigh(on, off) – Set on for the mode to be active.

Units Menu

This sub-menu activates units so they will be accessible with the Units button. The units in the menu must be turned “on” to be active.
Note: Available units and modes vary by model and local regulations.

Sealing access to balance settings

You can use the Menu Lock switch to limit changes to the user menu. The switch in type-approved models may set some balance settings as required by the approval agency. The switch may be secured using paper seals, wire seals, or plastic ties.

MAINTENANCE

Cleaning

WARNING: Electric Shock Hazard. Disconnect the equipment from the power supply before cleaning.
Make sure that no liquid enters the interior of the instrument.
Attention: Do not use solvents, harsh chemicals, ammonia, or abrasive cleaning agents.
The exterior surfaces of the instrument may be cleaned with a cloth dampened with water and a mild detergent.

Troubleshooting

The following table lists common problems and possible causes and remedies.
If the problem persists, contact OHAUS or your authorized dealer.

Symptom	Possible Cause	Remedy
Cannot turn on	No power to balance	Verify connections and voltage
Poor accuracy	Improper calibration Unstable environment	Perform calibration Move balance to a suitable location
Cannot calibrate	Unstable environment Incorrect calibration weight	Move the balance to a suitable location Use correct calibration weight
Cannot access mode	Mode not enabled	Enter the menu and enable mode
Cannot access unit	Unit not enabled	Enter the menu and enable the unit
	Reference weight is too low	Increase reference weight.
	Parts counting— sample weight <1d.	Shows error – exits mode or goes to
	Incorrect calibration weight	See section 2.5 for correct weights
	RS232 buffer is full	Set Handshake on, see Interface User Manual.
	Power on zero range exceeded	Clear pan, check Shipping Lock setting
	Power on zero under a range	Install pan, check Shipping Lock setting
	Overload (>cap+9e)	Load exceeds balance maximum capacity
	Under load	Reading below min. range – Re-install pan.
	Displayed value >999999	Result exceeds display capability.
	Internal data error.	Contact an authorized service agent
	Fail to write EEPROM.	Contact an authorized service agent
	Invalid checksum data	Contact an authorized service agent

Service Information

If the troubleshooting section does not resolve or describe your problem, contact your authorized OHAUS service agent. For service assistance or technical support in the United States call toll-free 1800-526-0659 between 8:00 AM and 5:00 PM EST. An OHAUS  product service specialist will be available to provide assistance. Outside the USA,
please visit our web site,www.ohaus.com to locate the OHAUS office nearest you.

TECHNICAL DATA

Equipment Ratings:

• Pollution degree 2;
• Installation category II;
• Altitude 2000m;
•  Humidity: Maximum 80% for temperatures up to 31° C decreasing linearly to 50% at 40° C; noncondensing;
• electrical supply: Rated 12VDC 500mA for use with a Certified/Listed power adapter or battery operated;
• Indoor use only;
• Temperature range: 10° C to 40° C, Approved models (M) 0° C to 40° C
• The mains supply voltage fluctuations are not to exceed ± 10 % of the nominal supply voltage.

 Specifications Non-approved Models

** Availability depends on model and region.

Capacity x Readability

Approved Models

Drawings

Compliance

Compliance to the following standards is indicated by the corresponding mark on the product.

Mark	Standard
	This product complies with the EU Directives 2011/65/EU (RoHS), 2014/30/EU (EMC), 2014/35/EU (LVD) and 2014/31/EU (NAWI). The EU Declaration of Conformity is available online at www.ohaus.com/ce.
	This product complies with the EU Directive 2012/19/EU (WEEE). Please dispose of this product in accordance with local regulations at the collecting point specified for electrical and electronic equipment. For disposal instructions in Europe, refer to www.ohaus.com/weee.
	EN 61326-1

Verified weighing instruments in the EU

When the instrument is used in trade or a legally controlled application it must be set up, verified and sealed in accordance with local weights and measures regulations. It is the responsibility of the purchaser to ensure that all pertinent legal requirements are met.
Weighing Instruments verified at the place of manufacture bear the following supplementary metrology marking on the descriptive plate.

Weighing Instruments to be verified in two stages have no supplementary metrology marking on the descriptive plate. The second stage of conformity assessment must be carried out by the applicable weights and measures authorities.
If national regulations limit the validity period of the verification, the user of the weighing instrument must strictly observe the re-verification period and inform the weights and measures authorities.
As verification requirements vary by jurisdiction, the purchaser should contact their local weights and measures office if they are not familiar with the requirements.

FCC Note

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.

Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.

Industry Canada Note
This Class B digital apparatus complies with Canadian ICES-003.

ISO 9001 Registration
The management system governing the production of this product is ISO 9001 certified.

LIMITED WARRANTY

OHAUS products are warranted against defects in materials and workmanship from the date of delivery through the duration of the warranty period. During the warranty period OHAUS will repair, or, at its option, replace any component(s) that proves to be defective at no charge, provided that the product is returned, freight prepaid, to OHAUS. This warranty does not apply if the product has been damaged by accident or misuse, exposed to radioactive or corrosive materials, has foreign material
penetrating to the inside of the product, or as a result of service or modification by other than OHAUS.
In lieu of a properly returned warranty registration card, the warranty period shall begin on the date of shipment to the authorized dealer. No other express or implied warranty is given by OHAUS Corporation. OHAUS Corporation shall not be liable for any consequential damages.
As warranty legislation differs from state to state and country to country, please contact OHAUS or your local OHAUS dealer for further details.

Product Registration
Protect your investment. Register your product with your local OHAUS dealer. In the US and Canada register online at www.ohaus.com.

OHAUS Corporation
7 Campus Drive
Suite 310
Parsippany, NJ 07054 USA
Tel: +1 973 377 9000
Fax: +1 973 944 7177

With offices worldwide

www.ohaus.com

P/N 30467926 D © 2020 OHAUS Corporation, all rights reserved
Printed in China

References

• Home | Lawrence Wang
• Lab Balance | Industrial Scales | Lab Equipment | Lab Instruments | OHAUS
• Lab Balance | Industrial Scales | Lab Equipment | Lab Instruments | OHAUS
• CE Declarations | OHAUS