Ohaus YA User Manual

YA Gold Series User’s Manual

Thank you for purchasing our scale. Normal care and proper treatment
will provide for years of reliable service. Please read all operating
instructions carefully before use. It may be necessary to calibrate the
scale before the first use.

PROPER OPERATION AND ENVIRONMENT

• Avoid any exposure to extreme heat or cold, your scale works

better when operated at normal room temperature. It is
recommended to allow the scale to acclimate to normal room
temperature for at least one hour before use.

• Allow your scale sufficient time to warm up. Usually 30-60
seconds to give the internal components a chance to stabilize
before calibration.

• Keep your scale in a clean environment. Dust, dirt, moisture,
vibration, air currents, and a close distance to other electronic
equipment can cause an adverse effect on the reliability and
accuracy of your scale.

• Handle your scale with care. Gently apply all items or samples
to be weighed onto the weighing surface. Although this scale is
designed to be quite durable, try to avoid rough treatment as
this may permanently damage the internal components.

• Avoid shaking, dropping, or otherwise shocking the scale. This
is a precision instrument and must be handled with extreme
care.

• Only operate the scale on a stable, vibration free surface.

SPECIFICATIONS

Models: YA102, YA302, YA501
Capacity: 100gx0.01g, 300gx0.05g, 500gx0.1g
Units: g, oz, ct, gn, dwt
Calibration: External Calibration
Tare Range: Full Capacity
Auto off (default): 10-30 seconds
Operation Temperature: 10-30°C
Display: LCD
Power: 2 x AAA Batteries

OPERATION

• Place the scale on a horizontal flat surface, then press the

ON/OFF button.

• Wait until “0.00 is displayed

• Put thee object or sample on the weighing platform

• Using the MODE key, to switch between weight units

TARE WEIGHING

• Turn on the scale as described in OPERATION

• Place the “tare item” (weighing container) on the weighing

platform

• Press TARE and wait until “0.00” is displayed

• Add the “sample” into or on the weighing container.

CALIBRATION

• Turn on the scale as described in Operation

• Wait until “0.00” is displayed

• Press and hold the MODE key until the display reads “CAL”

• Pres the MODE key again and wait for the LCD display to flash

“*.*”

• Place the weight according to the LCD disply on the center of
the platform and press the MODE key again

• Wait until the display displays “PASS”, and then remove the
weight

• Press the ON/OFF button to turn off the scale.

PLEASE CHECK FOR THE AVAILABILITY OF WEIGHTS FROM THE
COMPANY YOU BOUGHT THE SCALE FROM.

TROUBLESHOOTING

The primary reason for inaccuracy or malfunction of the scale is due to
low batteries or incorrect installation of batteries, incorrect or infrequent
calibration, overloading the scale, or operating the scale on an unstable
surface. Please keep in mind to maintain and operate your scale
properly. The scale is a precision instrument and must be handled with
the utmost care and caution.

DISPLAY ERRORS

[lo], [88888], or not display – change the batteries
[OUT2] – recalibrate the scale per the instructions above
[O-Ld] – The scale is overloaded. Remove the object from the weighing
tray immediately!!
[EEEEE] or [LLLLL] – The internal components have been damaged.
(i.e. it was shocked, dropped, or excessively overloaded). Try to
recalibrate the scale. If the scale was not damaged too much,
recalibration may fix the problem.
[UNST] – Use the scale in a more stable (i.e. flat) position.

NOTE: This equipment has been tested and found to comply with the
limits for a Class A digital device, pursuant to Part 15 of the FCC Rules.
These limits are designed to provide reasonable protection against
harmful interference when the equipment is operated in a commercial
environment. This equipment generates, uses, and can radiate radio
frequency energy and, if not installed and used in accordance with the
instruction manual, may cause harmful interference to radio
communications. Operation of this equipment in a residential area is
likely to cause harmful interference in which case the user will be
required to correct the interference at his own expense.