Scaletron 4041 Installation and operation manual

Scaletron™ Industries, Ltd.
Bedminster Industrial Park
53 Apple Tree Lane
P.O. Box 365
Plumsteadville, PA 18949 USA
Toll Free: 1-800-257-5911 (USA & Canada)
Phone: (+1) 215-766-2670 (international)
Fax: (+1) 215-766-2672
E-mail: [email protected]
Website: www.scaletronscales.com
OEM Manual
MODEL 4041™ 4 ½ DIGIT
ULTRA LOW PROFILE SCALE

1
© 2004. Scaletron Industries Ltd. Plumsteadville, PA Scaletron. Scaletron Sets The Standard In Corrosion Resistance. Model 1099, Model 2310, Model 2330, Model
2350, Model 2352, Model 2353, Model 3001, Model 3002, Model 3003, Model 3004, Model 3005, Model 3006, Model 4010, Model 4020, Model 4021, Model 4030,
Model 4040, Model 4041, Model 5305, and Pro-Gram Guide are trademarks of Scaletron Industries Ltd. Total Electronic System is a service mark of Scaletron
Industries Ltd. All Rights Reserved. PRINTED IN U.S.A. OCT 2004
These instructions generally describe the installation, operation, and maintenance of subject
equipment. The manufacturer reserves the right to make engineering refinements that have not been
described herein. Should any questions arise that may not be answered specifically by these
instructions, they should be directed to Scaletron Industries Ltd., Or Our Sales Agent for a
response.
All possible precautions were taken in packaging each piece of equipment to prevent shipping
damage. Carefully inspect each item and report damages immediately. Report all damage claims to
the shipping agent involved for equipment shipped F.O.B. job site. Do not install any damaged
equipment.
All instructions given on any labels, or attached tags, should be followed. Carefully inspect all
packing material before discarding to prevent the loss of accessories, mounting hardware, spare
parts, or instructions.
TABLE OF CONTENTS PAGE
I. GENERAL DESCRIPTION………………………………………………………………………...1 - 2
II. SPECIFICATIONS…………………………………………………………………………………...…2
III. ASSEMBLY AND START-UP……………………………………………………………..………2 - 3
IV. GENERAL USE INSTRUCTIONS………………………………………………………………...3 - 4
V. CALIBRATION PROCEEDURE…………………………………………………………………….. 4
VI. TROUBLESHOOTING……………………………………………………………………………..4 - 5
VII. BOARD DIAGRAM………………………………………….. ………………………………….……..6
I. General Description:
The Model 4041™ Ultra Low Profile Platform Scale is designed specifically for regular on and
off loading of a tank or drum. Off center loading or solid materials do not affect the scale
accuracy due to the four cell design. Mixers and pumps may be used with this base design.
The base sizes available are 24 in by 24 in, or 30 in by 30 in. The maximum net weight is
1999 lb./ or kg. with 0.1 lb/ or kg resolution, or with a maximum net weight exceeding 1999,
the decimal is blanked at the factory, and the display can read 19999 lb/ or kg. on the 4 ½ Digit
indicator, however the total weight limit on this base is 1500 lb. (680 kg). Typically, weights
exceeding 1000 lb. / kg do not read in tenths of a unit. This indicator may be necessary for the
low level set points that are standard, or the LED display that sets it apart from the 3 ½ Digit
LCD.
The design of the platform includes sturdy four point support, with a ½” PVC deck. The base is
protected from scratches by the PVC decking, and the base is coated with dry polyester
powder coating to prevent corrosion. Scale has four NTEP stainless steel temperature
compensated strain gauge transducers.
Standard Parts
1 Base assembly 1 Weigh Meter (indicator)
1 Power Cord 1 Technical Manual
Available Options
A. Remote mounting of standard enclosure

2
© 2004. Scaletron Industries Ltd. Plumsteadville, PA Scaletron. Scaletron Sets The Standard In Corrosion Resistance. Model 1099, Model 2310, Model 2330, Model
2350, Model 2352, Model 2353, Model 3001, Model 3002, Model 3003, Model 3004, Model 3005, Model 3006, Model 4010, Model 4020, Model 4021, Model 4030,
Model 4040, Model 4041, Model 5305, and Pro-Gram Guide are trademarks of Scaletron Industries Ltd. Total Electronic System is a service mark of Scaletron
Industries Ltd. All Rights Reserved. PRINTED IN U.S.A. OCT 2004
B. Load Cell Cable
II. Specifications:
Display: LED, 4 ½ Digit with minus sign, 0.56 inch high, seven segment
Resolution: Indicator: 1999 lb x 0.1 lb, or 2000 to 19999 lb. x 1.0 lb.
Load Cell Excitation: 16 VDC Power, 4 Load cells
Zero Adjustment: Internal potentiometer, External tare knob
Span Adjustment: Internal potentiometer R-12 for med. DIP switches SW-A 1-6 for course,
7 & 8 no effect, not used
Current Output Adjustment: Potentiometer R-43 adjusts 4-20 mA active, or passive. 220
Ohm Load max.
Overload: Blanks with “0” (or if decimal, “0.0”) on the display
Accuracy: +/- 0.5% full capacity
Power: 120 Volt, 50/60 Hz single phase, 0.5 amps. 240 Volt available with jumpers on board.
Dimensions: Base sizes: 24”x24”, or 30”x30”
III. Assembly and Start-Up:
The Model 4041™ Ultra Low Profile Platform Scale is shipped partially disassembled.
Assembly instructions are as follows:
The load cells are secured to the base. All wire connections in the base have been made and
sealed at the factory. The digital weigh meter is assembled and calibrated to the base at the
factory. The customer must mount the indicator on the wall. The base should be roughly
leveled using the adjustable feet in the load cell while making sure there is clearance between
the base and floor. The wires must be run through the strain relief and connected to the
connector before scale is operated. Steps are as follows:
Step 1: Remove all parts from box and inspect for damage – bent metal, broken wires, cracks
in indicator, etc. Any shipping damage must be reported to carrier!
Step 2: Place the scale on a solid, dry, and even surface. Clear the area of all debris where
the scale base will be anchored. The “feet” in the load cells are adjustable with a nut to
tighten. Level the base by adjusting these feet, and then use the nut to tighten the feet so that
they cannot move. Make sure that the base frame is not hitting the floor in any way. This will
cause an inaccurate reading.
Step 3: If conduit is to be used, we recommend at least 2 feet of FLEXIBLE conduit mounted
horizontally as to not interfere with free movement of the base for accurate measurement.
Feed the wire up through the conduit, and apply a fitting.
Step 4: Drill a hole in the indicator, being sure to avoid the PC board, and completely seal the
hole with the fitting. If ANY SPACE exists around the fitting allowing gas into the box, the
equipment will be damaged. You MUST SEAL any openings with a flexible caulk, such
as silicon! Fasten the indicator to the wall. Connect the wires into the connector using the
following code:
TB1: 1: Low Level set pt. 1 (REED relay, contact closure to pin 2: common)
2: Common
3: Low Level set pt. 2 (REED relay, contact closure to pin 2: common)
* 4: 4-20 LOOP Powered (4 is common and 5 is supply)
*5:
* 6: 4-20 SCALE Powered (5 is common and 6 is supply)
7: - Sense (optional)

3
© 2004. Scaletron Industries Ltd. Plumsteadville, PA Scaletron. Scaletron Sets The Standard In Corrosion Resistance. Model 1099, Model 2310, Model 2330, Model
2350, Model 2352, Model 2353, Model 3001, Model 3002, Model 3003, Model 3004, Model 3005, Model 3006, Model 4010, Model 4020, Model 4021, Model 4030,
Model 4040, Model 4041, Model 5305, and Pro-Gram Guide are trademarks of Scaletron Industries Ltd. Total Electronic System is a service mark of Scaletron
Industries Ltd. All Rights Reserved. PRINTED IN U.S.A. OCT 2004
8: - Excitation (BLACK)
9: + Sense (optional)
10: + Excitation (RED)
11: -Signal (WHITE)
12: +Signal (GREEN)
*Make 4-20mA connections at this location. Determine if 4-20 mA signal is to be scale
powered, or if it is loop powered (powered by SCADA or PLC). Refer to page 5, Jumper
labeled J-4 for proper settings of scale or loop powered 4-20mA.
Insert the wire, being sure not to crimp the insulation in the connector. Using a small
screwdriver, unscrew the wire clamp to insert the wire into the proper hole and then
tighten this screw firmly, but take care not to strip the threads inside the connector.
The connector holes are numbered according to the code above.
Step 5: Allow approximately 15 minutes warm up time before using the scale.
IV. General Use Instructions:
Please refer to these instructions for daily use of this scale. These instructions simulate the
procedure for every day usage.
ON AND OFF LOADING USAGE:
To start with a new, FULL tank that will be loaded on & off, please follow these steps:
Please choose a method of usage by Tare or Net Weight:
TARE: You must know the weight of your empty tank, and any other equipment mounted on
to the tank that will affect the weight. Add this weight together, and turn the black tare knob on
the front of the indicator until it reads that number in the negative. Turn the knob counter-
clockwise in order to achieve negative numbers. Once that negative tare weight is set, you
may load the tank, and apply other equipment on that tank. The weight that registers on the
scale indicator is the NET WEIGHT, or weight of the contents. At this point you will not change
the black tare knob unless you are loading on a new tank. As you use the contents, the weight
decreases. When the tank is at zero, or close to it, you will begin again by removing the empty
tank, setting the tare weight with the black knob (for the new tank + equipment), and begin
using the material again.
NET: If you do not know the tare weight (it is not stamped on the tank), you may know the Net
Weight (contents in the tank). If this is the case, you will use this procedure:
Load on your full tank and attach any equipment that affects the weight on the scale. Turn the
black tare knob on the front of the indicator until it reads the known NET WEIGHT (weight of
contents only) on the indicator. Clockwise will increase the readings and counter-clockwise
will decrease the readings. When the weight is set for the contents in the tank, do not adjust
this again until you load on a new tank. The reading will decrease until you have used all the
contents in the cylinder, where it will read 0 lb./kg. Start a new tank by removing the old empty
tank, loading on a new full tank, and attaching equipment, and set tare knob to Net weight
again.
For use when FILLING the TANK instead of on & off loading:
To start with a new, EMPTY tank that will be filled while on the scale base, please follow
these steps:
Load the new, empty tank on to the platform. Be sure to connect all equipment to the tank that
may apply weight to the scale. With this weight applied, turn the black tare knob located on
the outside, front of the indicator, until the digital reading says zero. This means that your

4
© 2004. Scaletron Industries Ltd. Plumsteadville, PA Scaletron. Scaletron Sets The Standard In Corrosion Resistance. Model 1099, Model 2310, Model 2330, Model
2350, Model 2352, Model 2353, Model 3001, Model 3002, Model 3003, Model 3004, Model 3005, Model 3006, Model 4010, Model 4020, Model 4021, Model 4030,
Model 4040, Model 4041, Model 5305, and Pro-Gram Guide are trademarks of Scaletron Industries Ltd. Total Electronic System is a service mark of Scaletron
Industries Ltd. All Rights Reserved. PRINTED IN U.S.A. OCT 2004
digital reading will show net weight, or the weight of the contents alone. As you fill the tank for
the first time, the scale shows the current weight at all times. Do not readjust the tare weight
unless you are starting with a dry, new, empty tank. Any residual weight will reflect what is left
in the tank, and should not be changed unless a new tank is put on the base.
V. Calibration Procedure:
The Model 4041™ Ultra Low Profile Platform 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. Once scale is leveled with no weight on scale, it is ready for calibration. Turn tare pot on
front panel fully clockwise, then turn back counter-clockwise one full turn. (This will assure
enough tare adjustment when calibration is completed.) Adjust SW-B zero switches 1-6 and
R-25 to obtain a zero reading on digital display. Do not move shorting pin on J-8 unless
SW-B 1-6 and R-25 adjustments cannot reach a zero reading. J-8 will reverse the
adjustment polarity and thus double the range of the adjustments.
2. After a zero reading is obtained a known weight (such as a certified test weight) should be
placed on the scale.
Note: Calibration is done at the factory and should only need adjustment of R-12, or slight
switch change to set span to desired weight. Wait for a minute so a reading can be
obtained. Adjust R-12 or SW-A 1-6 span switches to obtain gross weight desired. Shorting
jumper J-9 can be moved to Hi Lo position if SW-A 1-6 and R-12 cannot reach desired
weight.
3. Adjustment of span interacts with the zero setting previously made and Step (1) must be
repeated, followed by the repeat of Step (2) until both readings remain correct with weight
on or off scale without adjustment.
4. Analog output is selectable as scale powered, or loop powered. If scale is to supply the
power for the loop, J-4 must be in the “S” (scale) position. The 4-20 mA output will be
available at TB-1 Terminal 5 & 6. (5= -) & (6= +) 220 Ohm load max.
If the device connected to the scale is to supply power for the loop, then the jumper, J-4
must be in the “L” (loop) position and the signal will be available at TB-1 terminals 4
(common) and 5 (+1). (220 Ohm load at 15 VDC, or 440 Ohm load at 30 VDC max.)
Note: Output is selectable as 4-20 mA, 0-20 mA, or +12 mA, -8 mA, with jumper, J-7. Two
pins closest to R-43 are for 0-20 mA, two center pins are for 4-20 mA, and the two pins
farthest from R-43 are for +12mA, -8mA.
5. Connect device to be connected to output terminals required. Install milliamp meter in loop
to measure current.
6. Adjust R-43 for full load setting. (No load should be correct when digital indicator is reading
“0”).
7. Two set points are available for contact closure at two different points in range of scale.
Use R-59 to adjust SP 1, and R-56 to adjust SP 2. SP 1 is available at TB 1 terminal 1 and 2.
SP 2 is available at TB 1 terminal 2 and 3. Relay rated for 12 VDC 1.5 amp max load.
(Contacts are closed below set point.)
VI. Troubleshooting:
Consult the Factory!

5
© 2004. Scaletron Industries Ltd. Plumsteadville, PA Scaletron. Scaletron Sets The Standard In Corrosion Resistance. Model 1099, Model 2310, Model 2330, Model
2350, Model 2352, Model 2353, Model 3001, Model 3002, Model 3003, Model 3004, Model 3005, Model 3006, Model 4010, Model 4020, Model 4021, Model 4030,
Model 4040, Model 4041, Model 5305, and Pro-Gram Guide are trademarks of Scaletron Industries Ltd. Total Electronic System is a service mark of Scaletron
Industries Ltd. All Rights Reserved. PRINTED IN U.S.A. OCT 2004
USA & Canada Toll-Free: (800) 257-5911
Tel: (+1) 215-766-2670
♦
Fax: (+1) 215-766-2672
Notice: Do not return any equipment without first contacting the factory. A return
authorization number will be issued and it must be marked on all materials returned to the
factory, accompanying a letter that explains the problem specifically. A Serial Number will
also be required. It is located inside the indicator box.

6
© 2004. Scaletron Industries Ltd. Plumsteadville, PA Scaletron. Scaletron Sets The Standard In Corrosion Resistance. Model 1099, Model 2310, Model 2330, Model
2350, Model 2352, Model 2353, Model 3001, Model 3002, Model 3003, Model 3004, Model 3005, Model 3006, Model 4010, Model 4020, Model 4021, Model 4030,
Model 4040, Model 4041, Model 5305, and Pro-Gram Guide are trademarks of Scaletron Industries Ltd. Total Electronic System is a service mark of Scaletron
Industries Ltd. All Rights Reserved. PRINTED IN U.S.A. OCT 2004
VII. Board Diagram:
Table of contents
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