OHAUS TA152 Traveler Scales Balance Instruction Manual

OHAUS TA152 Traveler Scales Balance Instruction Manual

INTRODUCTION

This manual contains installation, operation and maintenance instructions for the Traveler Scales. Please read the manual completely before using the scale.

Safety Precautions

Please follow these safety precautions:

• Verify that the Power Adapter input voltage matches the local power supply voltage.
• Use the scale only in dry locations.
• Do not operate the scale in hostile environments.
• Do not drop loads on the pan.
• Do not place the scale upside down on the pan.
• Service should be performed only by authorized personnel.

**Controls

Figure 1-1. Controls.
**

TABLE 1-1. CONTROL FUNCTIONS

Key Name

| Function
---|---
On-Zero Off Yes|

•  Primary function (Short Press) – If scale is Off, turn On. If scale is on, perform Zero/Tare function

• Secondary function (Long Press) – Turn scale Off

• Menu function – (Yes) This key is used to accept the currently displayed setting

Print Cal

|

• Primary function (Short Press) – Send the current display value to serial port if installed

• Secondary function (Long Press) – Starts Span calibration as available in Menu

• Primary function (Short Press)– Advances to next available unit

• Menu function – (No) This key is used to reject the displayed setting and advance to next available setting

INSTALLATION

Package Contents

• Scale
• Pan
• Draft Shield
• Power Adapter
• Calibration Weight (on some models, see Table 6.1)
• Instruction Manual
• Warranty Card

Location

Use the scale on a firm, steady surface. Avoid locations with excessive air currents, vibrations, heat sources, or rapid temperature changes.

Transportation Lock, Calibration Lock & Pan Installation

Before using the scale the Transportation Lock must be released. At the bottom of the scale slide the locking pin to the **position. Se e Figures 2-1.

Figure 2-1. Release Transportation Lock
Before using the scale the Transportation Lock must be released. At the bottom of the scale
slide the locking pin to the position. See Figures 2-1.
Install the metal pan over the plastic sub-platform.
**

Figure 2-2. Release Calibration Lock

Connect Power
A Power Adapter is used to power the scale. Connect the Power Adapter to the power outlet ( see Figure 2-3 )

For use only with UL or CSA Certified (or equivalent approved) power adapter, which is a Class 2 or a Limited Power Source device
Figures 2-3, Power Adapter
and the power plug to the back of the scale (se e Figure 2-4)

Figure 2-4, Power Plug

Battery Installation and Use

The scale may also be powered by batteries. Remove the battery cover and install four alkaline AA (LR6) type batteries, (not included). Refer to Figure 2.5

Figures 2-5, Battery Installation

to properly install the batteries. Under battery power a battery symbol is shown on the left side of the display. The Auto-Off setting is useful for conserving battery power, see section 4.2.1.

Initial Calibration
Power on the scale by pressing On-Zero. Allow at least one minute for the scale to stabilize before calibrating. Press and hold the Print/Cal button until [CAL] is displayed. The display flashes [-C-] while zero reading is taken. The display flashes the required span mass. Put the indicated calibration mass on the pan and press Yes. The display flashes [-C-]. When calibration is complete, [DonE] is displayed

Note : Calibration is also available in the Setup menu, see section 4.2.1

OPERATION
Some weighing Units of measure may initially be unavailable. They can be enabled in the Main menu Unit [U.n.i.t], see section 4.

Draft Shield
The draft shield was designed with an easy to remove center piece which can be used as a high quality sample tray. Even with the center piece removed the draft shield will provide increased protection from rough environments while maintaining weighing speed. To remove the center piece, rotate counter- clockwise. See Figure 3-1. With the sample tray firmly in place the unique shape of the draft shield also allows for the efficient stacking of one scale on top of another.

Weighing Mode
Press Unit to advance to next available weighing Unit. Press Zero to zero the scale and then place objects to be weighed on the pan.

SETTINGS

The Settings allows the user to customize the scale.

Menu Structure

Table 4-1 illustrates the menu structure.

TABLE 4-1 MENU

.e.t.u.

– ff          n FF Press Yes or NoLin       Press Yes or NoEnd      Press Yes or No

| U.n.i.t.U.n.i.t      g        n FFU.n.i.t      N        n FF End Press Yes or No| E.n.d.Press Yes or No
---|---|---

Notes

Unit : Symbol : Factor
Gram : g: 1
Newton :N :9.806e-3
Default menu settings are shown in bold

Menu Navigation

Main level menus are identified by decimal points between each letter, for example [S.E.t.U.PS.

Enter Menu: With the scale off, press and hold the On button. Continue holding the On button until [S.E.t.U.PS.E.t.U.P S.E.t.U.P] is displayed. Each main menu is entered by pressing Yes. Advance to the next main menu by pressing No.

Changing Settings : Within each main menu are sub-menus. Enter each sub- menu by pressing Yes. Advance to the next sub-menu by pressing No. To accept the displayed sub-menu setting, press Yes. To advance to the next setting, press No.

Menu Exit : The last item in each sub-menu is [EnD]. Press Yes to return to the main menu. The last item in the main menu is [E.n.D]. Press Yes to return to the previous weighing mode.

Setup Menu [S.E.t.U.P]
The Setup menu contains the following sub-menus:

Auto-Off [.A-OFF.]: Auto Off settings: On Off Setting [On] will automatically turn the scale off after no activity is detected for 4 minutes.

Span Calibration [SPAN]: Uses two weight values: Zero and a value at or near the full capacity of the scale. Span calibration should be performed if the scale is repositioned or when the room temperature changes significantly.

Linearity Calibration [Lin ]: Uses three weight values: Zero, a mid-range value and full capacity. Generally this calibration is not required unless testing shows that the linearity error exceeds the linearity tolerance in the specification table. Accuracy of weights is important to maintain weighing integrity.

Unit Menu [U.n.i.t]

Each Weighing Unit may be individually set to On or OFF. See Table 4-1 for the symbols associated with each Unit or Mode.

Other Menus
Additional Menus are available if a serial interface option is installed in the scale. These menus are explained within the user manual of each option kit.

Calibration Lock Feature
Sliding the switch fully to the  lock position prevents calibration of the scale. Using a paper or wire seal will physically secure the switch if required.

Locking the calibration

Adhesive paper seal

Wire or plastic tie seal

Figure 4-1. Locking and Sealing the Calibration Lock Switch.

Weigh Below Feature
The Weigh Below Hook is stored inside the battery cover. Thread the hook into the access hole at the bottom of the scale. Mount the scale onto an appropriate assembly that allows free working space below the hook. See Figure 4-2. Note: Never allow the scale to rest directly on the hook **.

**

Figure 4 – 2. Setup for using the Weigh Below Hook.

MAINTENANCE

Troubleshooting

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

TABLE 5-1. TROUBLESHOOTING.

•  No power to scale
• Empty or incorrectly installed batteries

|

•  Verify AC adapter connections and voltage.
• Replace batteries, check polarity.

Poor accuracy|

• • Improper calibration
• Unstable environment• Transportation Lock is set
• Debris touching the pan• Draft shield is touching the pan or sample.

|

• Perform calibration.
• Move scale to suitable location.
• Slide the pin to the unlocked position.
• Clean any debris next to or under the pan
•  Check that pan is fully seated, check sample height.

Cannot calibrate|

• Unstable environment
• Incorrect calibration mass• Transportation Lock is set
• Calibration Lock switch is set

|

• Move the scale to a suitable location.
• Use correct calibration masses
• Slide the pin to the unlocked position.
• Slide the switch to the unlocked position.

Err 1|

• Invalid Checksum data.

|

• Cycle scale off/on.
• Contact Ohaus or authorized dealer.

Err 2|

• Over-load or Under-load condition.
•  Transportation Lock is set
• Improper calibration

|

• Verify pan is installed and/or excess load is removed from pan.
• Slide the pin to the unlocked position.
• Perform calibration.

Err 4|

• Invalid calibration mass.

|

• Verify correct calibration mass is being used.

Err 8|

• RS232 buffer is full.

|

• Cycle scale Off/On.
• Check RS232 settings in scale and computer when RS232 option is installed.

Err 9|

• Internal data error.

|

• Contact Ohaus or authorized dealer.

(Flashing)|

• Battery power is low.

|

• Replace batteries soon.

b tt LowW|

• Battery power is too low for proper operation.

|

• Replace batteries.

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 1-800-526-0659 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

Specifications

TABLE 6-1. SPECIFICATIONS

Accessories

TABLE 6-2. ACCESSORIES

Adapters, RS232 to Printer
Calibration masses

**Drawings

Figure 6-1. Overall Dimensions
**

Compliance

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

This product conforms to the EMC directive 2004/108/EC and the Low Voltage Directive 2006/95/EC. The complete declaration of Conformity is available from Ohaus Corporation.

AS/NZS4251.1 Emission; AS/NZS4252.1 Immunity

Disposal
In conformance with the European Directive 2002/96 EC on Waste Electrical and Electronic Equipment (WEEE) this device may not be disposed of in domestic waste. This also applies to countries outside the EU, per their specific requirements.
Please dispose of this product in accordance with local regulations at the collecting point specified for electrical and electronic equipment.
If you have any questions, please contact the responsible authority or the distributor from which you purchased this device.
Should this device be passed on to other parties (for private or professional use), the content of this regulation must also be related.
For disposal instructions in Europe, refer to www.ohaus.com/weee.
Thank you for your contribution to environmental protection.

ISO 9001 Registration
In 1994, Ohaus Corporation, USA, was awarded a certificate of registration to ISO 9001 by Bureau Veritus Quality International (BVQI), confirming that the Ohaus quality management system is compliant with the ISO 9001 standard’s requirements. On May 15, 2003, Ohaus Corporation, USA, was re-registered to the ISO 9001:2000 standard.

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

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

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.

Ohaus Corporation 19A Chapin Road P.O. Box 2033 Pine Brook, NJ 07058-2033, USA
Tel: 973-377-9000
Fax: 973-944-7177
www.ohaus.com

With offices worldwide / Con oficinas en todo el mound / Alec des bureau sans le mode entire / Welterweight Geshäftsstellen / Con suffice in tutti il mono

P/N 80251716 B © 2010 Ohaus Corporation, all rights reserved / todos los derechos reservados / Tous droits réservés / Alle Rechte vorbehalten / tutti i diritti riservati

Printed in China / Impreso en China / Imprimé en Chine / Gedruckt in China / Stampato in Cina

References

• Lab Balance | Industrial Scales | Lab Equipment | Lab Instruments | OHAUS
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