OHAUS TA152 User manual
Traveler™ Scales
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1. INTROD CTION
This manual contains installation, operation and maintenance instructions for the Traveler
Scales. Please read the manual completely before using the scale.
1.1 Safety Precautions
Please follo these safety precautions:
• Verify that the Po er Adapter input voltage matches the local po er 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 do n on the pan.
• Service should be performed only by authorized personnel.
1.2. Controls
Figure 1-1. Controls.
TABLE 1-1. CONTROL FUNCTIONS
Key Name Function
•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
On-Zero
Off
Yes
•Menu function – (Yes) This key is used to accept the currently
displayed setting
•Primary function (Short Press) – Send the current display
value to serial port if installed Print
Cal •Secondary function (Long Press) – Starts Span calibration as
available in Menu
Traveler™ Scales
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Key Name Function
•Primary function (Short Press)– Advances to next available
unit
nit
No •Menu function – (No) This key is used to reject the displayed
setting and advance to next available setting
2. INSTALLATION
2.1 Package Contents
• Scale
• Pan
• Draft Shield
• Po er Adapter
• Calibration Weight (on some models, see Table 6.1)
• Instruction Manual
• Warranty Card
2.2. Location
Use the scale on a firm, steady surface. Avoid locations ith excessive air currents,
vibrations, heat sources, or rapid temperature changes.
2.3. 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. See Figures 2-1.
If the scale is to be calibrated by the user ensure that the Calibration Lock is set to
position. See Figure 2-2.
Install the metal pan over the plastic sub-platform.
Figure 2-1. Release Transportation Lock Figure 2-2. Release Calibration Lo k
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2.4 Connect Power
A Po er Adapter is used to po er the scale. Connect the Po er Adapter to the po er outlet
(see Figure 2-3) and the po er plug to the back of the scale (see Figure 2-4)
Figures 2-3, Po er Adapter
Figure 2-4, Po er Plug
2.5 Battery Installation and se
The scale may also be po ered by batteries. Remove the battery cover and install four
alkaline AA (LR6) type batteries, (not included). Refer to Figure 2.5 to properly install the
batteries. Under battery po er a battery symbol is sho n on the left side of the display.
The Auto-Off setting is useful for conserving battery po er, see section 4.2.1.
Figures 2-5, Battery Installation
For use only with UL or CSA Certified
(or equivalent approved) power
adapter, whi h is a Class 2 or a
Limited Power Sour e devi e.
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2.6 Initial Calibration
Po er on the scale by pressing On-Zero. Allo at least one minute for the scale to stabilize
before calibrating. Press and hold the Print/Cal button until [CAL
CALCAL
CAL] is displayed. The display
flashes [-
--
-C
CC
C-
--
-] hile 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
CC
C-
--
-]. When
calibration is complete, [Don
DonDon
DonE
EE
E] is displayed.
Note: Calibration is also available in the Setup menu, see section 4.2.1.
3. OPERATION
Some eighing Units of measure may initially be unavailable. They can be enabled in the
Main menu Unit [U.n.i.t], see section 4.
3.1 Draft Shield
The draft shield as designed ith an easy to remove center piece hich can be used as a
high quality sample tray. Even ith the center piece removed the draft shield ill provide
increased protection from rough environments hile maintaining eighing speed. To
remove the center piece, rotate counter-clock ise. See Figure 3-1. With the sample tray
firmly in place the unique shape of the draft shield also allo s for the efficient stacking of
one scale on top of another.
Figure 3.1, Sample Tray Removal
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3.2 Weighing Mode
Press nit to advance to next available eighing Unit.
Press Zero to zero the scale and then place objects to be eighed on the pan.
4. SETTINGS
The Settings allo s the user to customize the scale.
4.1 Menu Structure
Table 4-1 illustrates the menu structure.
TABLE 4-1 MEN
4.2 Menu Navigation
Main level menus are identified by decimal points bet een each letter, for example
[S.E.t.U.P
S.E.t.U.PS.E.t.U.P
S.E.t.U.P].
Enter Menu: With the s ale off, press and hold the On button. Continue holding
the On button until [S.E.t.U.P
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
EnDEnD
EnD]. Press Yes to return to the
main menu. The last item in the main menu is [E.n.D
E.n.DE.n.D
E.n.D]. Press Yes to
return to the previous eighing mode.
S.e.t.u.p
A-Off On
OFF
OFFOFF
OFF
SpaN Press
Yes or No
Lin Press
Yes or No
End Press
Yes or No
U.n.i.t.
U.n.i.t g On
On On
On
OFF
U.n.i.t N On
OFF
OFFOFF
OFF
End Press
Yes or No
E.n.d.
Press
Yes or No
Notes:
Notes:Notes:
Notes:
Unit Symbol Factor
Gram g 1
Ne ton N 9.806e-3
Default menu settings are sho n
in bold.
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4.2.1 Setup Menu [S.E.t.U.P
S.E.t.U.PS.E.t.U.P
S.E.t.U.P.]
The Setup menu contains the follo ing sub-menus:
Auto-Off [.A
AA
A-
--
-OFF.
OFF.OFF.
OFF.]: Auto Off settings: On Off
OffOff
Off
Setting [On] ill automatically turn the scale off after no activity
is detected for 4 minutes.
Span Calibration [SPAN
SPANSPAN
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 hen the room
temperature changes significantly.
Linearity Calibration [L
LL
Lin
inin
in]: Uses three eight values: Zero, a mid-range value and full
capacity. Generally this calibration is not required unless
testing sho s that the linearity error exceeds the linearity
tolerance in the specification table. Accuracy of eights is
important to maintain eighing integrity.
4.2.2 nit Menu [U.n.i.t
U.n.i.tU.n.i.t
U.n.i.t]
Each Weighing Unit may be individually set to On or OFF.
See Table 4-1 for the symbols associated ith each Unit or Mode.
4.2.3 Other Menus
Additional Menus are available if a serial interface option is installed in the scale. These
menus are explained ithin the user manual of each option kit.
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4.3. Calibration Lock Feature
Sliding the s itch fully to the lock position prevents calibration of the scale. Using a
paper or ire seal ill physically secure the s itch if required.
Locking the calibration
Adhesive paper seal
Wire or plastic tie seal
Figure 4-1. Locking and Sealing the Calibration Lock S itch.
4.4 Weigh Below Feature
The Weigh Belo 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 allo s
free orking space belo the hook. See Figure 4-2. Note: Never allo the scale to rest
directly on the hook.
Weigh Belo Hook access hole
Figure 4-2. Setup for using the Weigh Belo Hook.
5. MAINTENANCE
5.1 Troubleshooting
The follo ing table lists common problems and possible causes and remedies. If the
problem persists, contact Ohaus or your authorized dealer.
Traveler™ Scales
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TABLE 5-1. TRO BLESHOOTING.
Symptom
Possible Cause
Remedy
Cannot turn on
No po er 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 s itch is set
Move the scale to a suitable location.
Use correct calibration masses.
Slide the pin to the unlocked position.
Slide the s itch 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 hen RS232 option is installed.
Err 9
Internal data error.
Contact Ohaus or authorized dealer.
(Flashing)
Battery po er is lo .
Replace batteries soon.
bAtt LowW
Battery po er is too lo for
proper operation.
Replace batteries.
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