3
2010 Scaletron Industries Ltd., Plumsteadville, PA Scaletron, Scaletron Sets the Standard In Corrosion Resistance, Model 1020-1, 1020-2, Model 1099, Model 2305, Model 2306, Model 2307,
Model 2308, Model 2310, Model 2330, Model 2350, Model 2352, Model 2353, Model 3001, Model 3002, Model 3003, Model 3004, Model 3005, Model 3006, Model 3050-1, Model 3050-2, Model 4000SS,
Model 4010, Model 4020, Model 4021, Model 4030, Model 4040, Model 4040IBC, Model 4041, Model 4042, Model 4042WB, are trademarks of Scaletron Industries Ltd. Total Electronic System is a
service mark of Scaletron Industries Ltd.
PRINTED IN THE U.S.A. NOV 2010.
Please refer to these instructions for daily use of this scale. These instructions
simulate the procedure for every day usage.
To load a new, full cylinder, please follow these steps:
1. If you know what the Tare Weight of your cylinder (the weight of an empty cylinder) you
may turn your black tare knob (located on the front of the indicator door) counterclockwise,
until the tare weight is shown on the LCD indicator as a negative number. (Ex: Your cylinder is
stamped with a tare weight of 100 lbs. You turn your tare knob counterclockwise until it reads
“–100”. Then you load the cylinder on to the base, being sure that it is against the backstop.)
Do not load the cylinder on before you have reached the tare weight. Apply the safety chain to
the cylinder making sure that it is not too tight as to interfere with the weight of the cylinder.
-OR-
2. If you do not know the tare weight of the cylinder, or if you DO know the Net Weight,
(the weight of the contents of the cylinder) you may use this alternate procedure. Load the full
cylinder on to the scale, up against the backstop. When cylinder is loaded, and safety chain is
attached, turn the tare knob, located on the door of the indicator, counterclockwise, until the
known weight of the contents is displayed on the LCD. (Ex: You have a cylinder that holds 150
lbs. of contents. Load the cylinder on the scale, apply safety chains, and turn the black tare
knob located on the front of the indicator door until the weight of the contents, 150 lb., is
displayed on the LCD display. You are ready to start using the contents.)
When cylinder is empty, remove chain, remove old cylinder, and load new one using the
instructions above.
V. Calibration Procedure:
The Model 2305™ Eco-Scale is pre-calibrated at the factory to within specified accuracy
and is calibrated to standards traceable to the Bureau of Weights and Measures. No further
calibration should be necessary. If the electronics or load cells in the base are being
replaced, the following procedure should be used.
1. Plug the AC Cord into a well-grounded receptacle. There is no power on / off switch, so
power is applied as soon as it is plugged in.
2. Allow approximately 15 minutes warm-up time before calibration.
3. While indicator is warming up, proceed to check under base to make sure there is no
debris, and that base is as level as possible.
4. WITH NO WEIGHT APPLIED TO THE SCALE, turn the black tare knob on the outside of
the door of the indicator in the clockwise direction to make sure that there is at least +10 lb. of
weight in the tare knob. If not, adjust R-6 to see a positive reading. Once that is established,
turn the black tare knob on the door of the indicator counter-clockwise until it stops (DO NOT
OVER TURN KNOB OR YOU WILL DAMAGE THE TARE POT!) Once it reaches the most
negative reading, make sure you have at least –150 lb. on the display. If the tare span is
large, you may get to a –1 reading and this is a weight under-load condition. Turn R-6 until
you see a number a number that is not “below” –199.9 lb.
5. Adjust tare knob on front of weigh meter until scale reads zero with no weight on platform.
Adjust R-22 to set the 4mA reading to 0lbs.
5. Place a known weight on the base, as close to center as possible. Weight should be equal
to ½ of capacity, or greater, and must be centered between the pivot point and the fulcrum.
You will have to measure and calculate this on your own.
6. Adjust R-15 until display reads weight of test weight on scale base.
