
E500R DIGITAL METER
OPERATING INSTRUCTIONS
The E500R is a microprocessor based digital meter that is
designed for use with all Osborne Accu-Arm
®
500 scales
and is directly interchangeable with the 500 Mechanical
Dial, the E500 Electronic Meter and, the E500M Electronic
Meter.
The E500R can read, display and totalize weights in pounds
or kilograms. It has two programmable scale ratios, Scale
1, and Scale 2. Scale 1 is factory programmed to work with
the Osborne Accu-Arm® scale. Scale 2 is user programmable. The E500R also features a Direct Scale capable of
measuring direct weights to 50 pounds, (22.7 kg).
TOTALIZE
The E500R "Freezes" on the correct weight after an adjustable "sampling" interval for each animal. The E500R pro-
SCALE 1
vides a totalize function which adds each animal's weight to
a summary total of all animals weighed. The E500R features
an auto-zeroing function that automatically recalibrates the
scale to zero as the tare weight changes as the result of
debris accumulating on the scale platform.
The E500R has a water and dust resistant case that provides reliable service in harsh environments. An RS232
SCALE 2
port is available for connection to auxiliary devices like the
Osborne ID Logger or a PC for automatic weight acquisition. Contact Osborne Customer Service at 800-255-0316
about instructions for the RS232 port.
INSTALLING THE BATTERIES
The E500R is powered by two D-Cell alkaline batteries, (not
included). To install new batteries, loosen the six screws
CONVERT
DIRECT
in the back of the E500R case. Carefully open the back
cover. Caution: A ribbon cable connects the front of
the case to the rear. Open the case only enough to install
the batteries. Use only fresh, alkaline batteries. Place batteries according to the diagram on the back of the circuit
board. Carefully close the back cover and tighten the six
screws. During operation, a ashing colon (:) will appear
in the display window to indicate low battery power. Very
low battery power will be indicated by "batt". Replace the
batteries immediately for continuous service. Replacing
the batteries will not clear the memory.
INSTALLING THE METER ON THE SCALE
To install the E500R on an Accu-Arm® Scale, simply attach the E500R between the upper and lower dial hanger
hooks.
WARRANTY
Osborne Industries Inc. warrants the E500R Digital Meter to be
free from defects in material and workmanship under normal use
for a period of ONE YEAR from date of purchase. Alleged defective products shall be returned to Osborne Industries, Electronics
Bldg., 120 N. Industrial Avenue, Osborne, KS 67473, freight
prepaid, with owner identication. This warranty is limited
to repair or replacement of the product and excludes all
consequential or special damages.
Maximum weight, indirect on scale...... 500 lbs, (227 kg.)
direct on meter....... 50 lbs. (22.7 kg.)
Measuring error................................... < 1.0%
Power supply....................................... 2 D-Cell Alkaline
Battery life........................................... Slow Update: 388 Hrs.
(Note: life depends upon use and battery quality) Fast Update: 692 Hrs.
Meter housing..................................... Water/ shock resistant
Weight................................................. 2.1 lbs. (w/o batteries)
Dimensions......................................... Height 13.0 inches
Width 3.58 inches
Depth 3.15 inches
Overweight protection........................ Positive and Negative
Interfacing compatibility...................... Five pin type DIN
Resolution.......................................... Scale 1: 1 lb or 0.45 kg
Scale 2: 1 lb or 0.45 kg
Direct: .05 lb or .02 kg
Totalizing Capacity............................. Scale 1 or 2: 9999 lbs
(Note: Display rolls over after 9999) Direct: 999.9 lbs
Scale.................................................. Scale 1: 16.67 to 1
Scale 2: User Program
Total count and weight....................... 9999 Lb or Kg, 99 Item
Lower port.......................................... RS232
ON/OFF
READ
ZERO
DISPLAY
TOTAL
UNIT
KEY FUNCTIONS
Turns the scale on and off.
Used during programming to increment display.
Restarts display of weight measurements after the
display has "frozen" on a weight.
Zeros out the scale. This button must be
held for one second before zeroing occurs, (to pre-
vent accidental zeroing).
Adds the current reading to the total and increments
the total count. The total count will be displayed for
two seconds and then the total weight will be
displayed for two seconds. This button must be held
down for one second before the totalizing process
begins, (to prevent accidental totalizing).
Used during programming to decrement display.
SCALE 1: Used to select Scale 1.
Displays the current total count and total weight
when pressed. This button will not add to the total
weight, only display the count and weight. If this
button is still pressed when displaying is complete,
the total count and weight will be cleared to zero.
Used in programming to move digit space to left.
SCALE 2: Used to select Scale 2.
Pressing this button will convert the weight to the alternate standard of that chosen during user setup. If
pounds were chosen, "Kilo" will display as the alternate and will be displayed for one second before the
alternate weight is displayed. If you continue to press
the button, the converted weight will continue to be
displayed.
Used in programming to move digit space to right.
DIRECT: Used to select the Direct Weight Scale.
SPECIFICATIONS
CAUTION
Do not exert more than 50 pounds, (22.7 kg), of direct
force on the meter. Weight or force in excess of 50
pounds may damage the meter permanently.
800-255-0316 | 785-346-2192
www.osbornelivestockequipment.com
RLX-0819_I

E500R Digital Meter Operating Instructions
WEIGHING WITH THE E500R
Push the ON/OFF button and allow the E500R two seconds
to come on and to zero. As the meter comes on, it displays
"SC1", "SC2" or "dir" and "Lbs" or "Kilo", depending upon the
last Scale used. The factory programmed scale for use with
Accu-Arm® Scales is "SC1". To change the scale, see Changing the Scale.
If the E500R does not zero, press the ZERO button for
two seconds. After the meter has zeroed, place the animal
on the scale. The meter will freeze on the correct weight.
If necessary, push READ to reweigh an animal after the
initial display reading freezes. The meter will automatically rezero before the next animal is weighed. Push the
ON/OFF button to turn the meter off.
USING THE TOTALIZING FUNCTION
The totalizing function adds the weight of each animal to a
total. To use TOTALIZE, the last total must rst be cleared
from memory before starting to weigh animals. Press and
hold the DISPLAY TOTAL button until four zeros appear
(approx. eight sec.). As each animal is weighed, and
before removing the animal, press the TOTALIZE button
until the total number of animals weighed is displayed (approx. one sec.). This action adds the animal's weight and
count into
is displayed momentarily. Remove the animal and place the
next animal on the scale. Repeat this process until weighing
is complete.
DISPLAYING THE TOTAL WEIGHT AND COUNT
Press the DISPLAY TOTAL button momentarily. The E500R
displays the total count for three seconds and then displays
the total weight. These totals remain in memory when the
meter is turned off. Clear the total by pressing DISPLAY
TOTAL until four zeros appear, (appx. eight sec.). To turn
the meter off, press ON/OFF.
With the Meter turned OFF, press the button labeled
SCALE 1, SCALE 2, or DIRECT to choose a scale. Keep
the button pressed while pressing the ON/OFF button.
Only Scales that have been enabled can be accessed. To
enable a Scale, see Programming the E500R: Enab. The
Meter now comes on with the newly selected scale. The
E500R is now ready to weigh according to the programming of the scale chosen.
1. Turn meter off. 2. If calibrating the meter’s Scale 1 or
Scale 2 settings, hook the meter onto the scale. 3. Press
DISPLAY TOTAL and ZERO buttons simultaneously. While
holding down DISPLAY TOTAL and ZERO, press ON/OFF
and release all. 4. The meter will show the current scale
setting, SC_1, SC_2, or DIR. Choose a different scale
setting, if desired, by pressing SCALE 1, SCALE 2, or
DIRECT button. Press the READ button to continue. 5.
“0000” or “000.0” is displayed. If calibrating to SCALE 1
or SCALE 2 make sure the meter is properly connected to
the scale hanger and platform. Press READ to continue.
6. The value of the calibration weight is now shown. Use
the arrow keys to enter the known weight of the calibration
weight you will be using. 7. Place the weight on the scale
platform and close the gates on the platform. 8. Press
READ to complete the calibration. 9. When it is nished,
the display will ash “done” and then turn off. NOTE: The
calibration weight must be at least 50 lbs for SCALE 1 or
SCALE 2, or more than 5 lbs for DIRECT, or the calibration will be rejected.
the total weight and count. The totalized weight
CHANGING THE SCALE
CALIBRATING THE METER
With the Meter turned OFF, press the DISPLAY TOTAL
and UNIT CONVERT buttons at the same time. While
holding down these two buttons, press the ON/OFF button. The scale currently in use is displayed. A different
scale is chosen by using the buttons SCALE 1, SCALE
2, or DIRECT.
enable or disable this scale by displaying "ON" or "OFF".
The default setting for SC2 is "Enab-OFF". At any time in
the programming process, pressing ZERO permits exiting without changing the current value. Pressing READ
repeatedly skips through the parameters until "DONE" is
displayed. The Meter then turns itself off, retaining the
programming.
the scale to be changed. Using the or buttons, change
the weight to "Kilo" or "Lb". Default is "Lb". Press ZERO
to exit without changing.
to "ON" or "OFF". "ON" means the meter will power-down
after 15 minutes of non-use. Default is "ON". Press ZERO
to exit this parameter without changing the values.
fault is "Slo" for Scales 1 and 2, and "FSt" for the Direct
Scale. Press ZERO to exit without changing.
the display freezes. Using the or buttons, change the
time in seconds. "0" means the meter does not freeze.
Other choices range from 5 to 30 seconds. Longer interval
values improve the precision of the displayed weight, but
lengthen the total weighing time. Default is 15 sec. Press
ZERO to exit without changing.
zero. Using the or buttons, change the weight from 3
to 30 for Scales1 and 2, or 0.3 to 2.9 for the Direct Scale.
Use the and to move the digits to the right and left.
Default is 5 Lb for Scales 1 and 2 and 0.5 Lb for the Direct
Scale. Press READ to save changes and ZERO to exit.
At this point, "Done" is displayed and the meter shuts
itself off.
With the Meter turned OFF, default settings are chosen
by pressing the DISPLAY TOTAL, READ, ZERO, and UNIT
CONVERT buttons together while pressing ON/OFF. When
the changes are completed, the Meter shuts off.
PROGRAMMING THE E500R
EnAb
Unit
Pd
SPd
or buttons, change the option to "Slo" or "FSt". De-
Int
ZEro
Push the READ button to begin setting up the
scale. If SCALE 2 is selected, the display
will read "Enab". Using the
To continue changing the parameter values,
press READ for the next option. "Unit" is
displayed, allowing the unit of measure for
Press READ for the next option. "Pd" is displayed, for the power-down option. Using the
or buttons, change the power-down option
Press READ for the next option. "Spd" is displayed, allowing the speed of meter response
to changes in weight to be chosen. Using the
Press READ for the next option. "Int" is
displayed, allowing changes to the interval
during which weights are measured before
Press READ for the next option. "Zero" is
displayed, allowing changes to the maximum
value that the tare weight can drift and still
DEFAULT SETTINGS
or buttons,