Scaletron 2353 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 2353™ ELECTRONIC

MULTI - CYLINDER SCALE

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 4040IBC, Model 4041, Model 5305 are trademarks of Scaletron Industries Ltd. Total Electronic System is a service mark of Scaletron Industries

Ltd. PRINTED IN THE 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 damage claims to

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

II. SPECIFICATIONS.................................................. ………………………………………………1

III. ASSEMBLY AND START-UP INSTRUCTIONS………….............………………………..…….2

IV. GENERAL USE INSTRUCTIONS………………..............................……………………....……3

V. CALIBRATION PROCEDURE........................................................….……...…………….…...3

VI. TROUBLESHOOTING................................................................. ……………….………….….4

VII. BOARD DIAGRAM AND CONNECTION DIAGRAMS………………………………………5 - 8

I. General Description

The Model 2353™ Digital Multi Cylinder Scale is designed for weighing cylinders 11 ¾ inches

in diameter and smaller with a maximum net weight of 450 lbs. and a maximum tare weight of

450 lbs. The low profile design of the platform (1 ½ ”) allows for safe and easy loading of

cylinders. A pedestal, crossbar, and chains are provided to secure cylinders in place. The

printed circuit board contains a power supply section and two separate tare and span controls,

one for each set of discs. A 4-20 mA output signal is provided for each display. The weigh

meter electronics are housed in a NEMA 4X enclosure for mounting on top of the pedestal, or

remotely.

STANDARD PARTS AVAILABLE OPTIONS

3 Base Assemblies A. Remote mounting of standard enclosure

3 Pedestals B. Load Cell Cable

3 Crossbars C. Low Level relay contact

1 Power cord

3 Bags of Hardware

1 Technical Manual

6 Chains

3 “U” Bolts

1 Weigh meter to mount on center pedestal

2 Remote boxes mount on left and right pedestal

II. Specifications

Display: LCD 3 ½ digit with minus sign, liquid crystal display, 0.5” high, seven segment

Resolution: Three cylinders 450 lbs. x 0.1 lbs. (204 kgs. x 0.1 kg.)

Load Cell Excitation: 12 VDC Power 18 Cells

Zero Adjustment: Internal potentiometer, external tare knobs

Overload: Blanks with “1” displayed at far left of display

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 4040IBC, Model 4041, Model 5305 are trademarks of Scaletron Industries Ltd. Total Electronic System is a service mark of Scaletron Industries

Ltd. PRINTED IN THE U.S.A. OCT 2004

Accuracy: +/- 0.5% capacity

Power: 85-265 VAC 50/60 Hz single phase, 0.42 Amps. DEDICATED-ISOLATED POWER

WITH EARTH GROUNDING

Dimensions: Standard unit 32”W x 17.5”D x 58.75”H (Each Base)

III. Assembly and Start-up instructions

The Model 2353™ Digital Multi Cylinder Scale is shipped disassembled. Assembly

instructions are as follows:

The load cells are secured to discs and mounted in the base housing. 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 pedestals,

crossbars and chains, indicators, and reconnect wires to the printed circuit board before scale

can be operated.

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 bases on a solid, dry, and even surface. Clear the area of all debris

where the scale bases will be anchored.

Step 3: Secure the cross bars to the posts using the U-bolts and acorn nuts; make sure they

are tightened enough to safely restrain the cylinder. Fasten the chain to cross bar with two “S”

hooks in the holes provided. The cross bars should be at the proper height to restrain the size

cylinder being used.

Step 4: Drill two, ½” holes in the indicator to allow for the wires from the left and right base

remote box to enter. CAUTION: When drilling holes, please be sure not to hit the p.c. board

or wires inside the box. Open the weigh meter (indicator) and install the black liquid tight

fittings in the ½” holes drilled for the two remote boxes, and the ½” hole near the post bolt

holes for the center base. Install the same fittings into the remote boxes that will mount on the

left and right base pedestals. Feed the wire up through the fitting and snug the fitting on the

wire. Fasten the indicator to the center base’s pedestal. Insert the wires into the terminal

blocks. The Center base will share a right disk with the Right base connections, and the Left

base with the Center base, left disk connections.

Terminal block mounted to left side in back of indicator makes the connections for the left base

and the center bases’ left disk. The order of colors depends on the connections made at the

factory. Please match up the corresponding colors into the empty side of the terminal block.

The code is as follows, putting the following colors together into the terminal block:

Black and Brown. Orange and Red. Yellow and White. Green and Blue. (Only one shield

wire is present for the last connection, and it comes from the remote box. Attach this wire in

the terminal block across from the black colored wire with the bright yellow sticker that says

SHIELD.) They should match to the similar color whose wire is connected to the connector on

the PC board. The Right side terminal has only matching color wires running into the terminal

block. Green and Green, White and White, Black and Black. Red and Red. The shield wire is,

again, only coming from the right side base. Place it in the connection directly across from the

wire with the bright yellow shield sticker attached. These will be mounted directly across from

their corresponding color wire that was connected at the factory. From the terminal blocks,

there are factory installed wires that are connected as follows:

TB1 – 1: Common, 4-20mA Return*=Ret (right and center-right disk)

TB1 – 2: + 4-20mA Output* = Out (right and center-right disk)

TB1 – 3: Green (from right terminal block for right and center-right disk)

TB1 – 4: White (from right terminal block for right and center-right disk)

TB1 – 5: Black (from right terminal block for right and center-right disk)

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 4040IBC, Model 4041, Model 5305 are trademarks of Scaletron Industries Ltd. Total Electronic System is a service mark of Scaletron Industries

Ltd. PRINTED IN THE U.S.A. OCT 2004

TB1 – 6: Red (from right terminal block for right and center-right disk)

TB1 - 7: Black (from left terminal block for left and center-left disk)

TB1- 8: Red (from left terminal block for left and center-left disk)

TB1- 9: Green (from left terminal block for left and center-left disk)

TB1-10: White (from left terminal block for left and center-left disk)

TB1-11: Common, 4-20mA Return*= Ret (left and center-left disk)

TB1-12: +4-20mA Output*= Out (left and center-left disk)

*Connect your wires here if you are using 4-20mA output. Refer to the wiring diagram on

page 5 and 6 for 4-20mA connections. Jumper J-4 will need jumper in the top two pins for loop

powered, and the bottom two pins for scale powered (with board oriented as in drawing pg 5.)

IMPORTANT: Wires from the Right base and the right disk on the center base will connect by

the wires located in connections 3 – 6 with the 4-20mA connection in #’s 1 & 2. The wires from

the Left base and center base, left disk, will connect by the wires located in the connections

labeled 7 – 10 with the 4-20 mA connection in 11 & 12.

Step 5: Allow approximately 15 minutes warm up time before using the scale

IV. General Use Instructions:

There are two separate ways to use this scale. If you know the tare weight (the weight of

the empty cylinder) please use the following procedure:

Begin by allowing 15 minutes of warm up time for the first time use of the scale. With the base

empty, add together the tare weight of the cylinder, plus the weight of any equipment that will

mount on the cylinder, affecting the weight on the scale, and total that number. This is your

total tare weight. With the scale empty, turn the black tare knob mounted on the outside of the

door of the indicator, and turn it counter-clockwise to read a negative number that is the tare

weight. (For instance, the tare weight is 300 lbs. total. You turn the black tare knob until the

scale indicator reads “-300” lb.) Now you may load the full cylinders onto the disks and attach

any equipment. Your display will read the NET WEIGHT (the weight of the contents only). As

you use the contents, the weight will constantly read the net weight. When you are ready to

refill, simply remove the used cylinders, adjust the tare weight to read the negative tare weight

of the new cylinders and equipment, and load it onto the scale. You are then seeing the Net

Weight again.

If you know the net weight of the cylinder (contents weight only), please use this

procedure:

With the scale empty, determine the NET WEIGHT of the cylinders you are loading onto the

scale. Load the cylinders onto the bases and hook up any equipment that may affect the

weight reading of the scale. Using the black tare knob, under the display you are adjusting, on

the outside of the indicator box, turn the black knob counter-clockwise until you see the

(positive) number that is the net weight (contents). Doing this, you have “tared out” the

cylinder weight and equipment weight so that the weight you see is the contents only. As you

use the contents, the weight will constantly decrease until it is empty, and it is time to load a

new cylinder. Load on the new cylinder, attach all equipment, and adjust the tare knob to read

the known Net Weight again. You are ready to use the contents again.

V. Calibration Procedure

The Model 2353™ Multi Cylinder Scale is calibrated at the factory to within specified

accuracy and is calibrated to standards traceable to the Bureau of Weights and Measures. No

further calibration is necessary. If the electronics or load cells in base are replaced, the

following calibration procedure should be used.

Steps are as follows:

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 4040IBC, Model 4041, Model 5305 are trademarks of Scaletron Industries Ltd. Total Electronic System is a service mark of Scaletron Industries

Ltd. PRINTED IN THE U.S.A. OCT 2004

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 cylinder support disc to make sure

there is no debris.

Begin with one side of the scale to complete this process, and then return to step four

to repeat on other side.

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 –450 lb. on the display.

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.

6. Place known weights on the discs for that display (side base and one disk of center base),

as close to center as possible. The calibration weight for this display should be equal to ½ of

capacity, or greater.

7. Adjust R-15 until display reads weight of test weight on scale disc.

8. To complete calibration of 4-20mA output, adjust R-19 for proper 20 mA adjustment

reading. Factory setting is for 20 mA at 450 lb (204 kg.) unless specified otherwise.

9. Calibration is complete if specified accuracy is obtained. Repeat for second half of scale.

VI. Troubleshooting

1. If Display reads “-1”:

A. Gross under load, turn tare knob clockwise. Numbers should reappear and can be

adjusted to tare weight or zero as required.

B. Check load cell connections at indicator and connect wires per chart on page 2

2. If Display reads “1”:

A. Gross overload, if starting point was zero, the cylinder weight is more than 1999 lbs.,

or kg. This is unlikely because the base is not rated to withstand this amount of

weight. Gross weight should not exceed 900 lbs. for the combined disks.

B. Check load cell connections according to page 2, Step 4

3. If No Display:

A. Check power to weigh meter.

B. Check green light on power supply board. It should be lit. If not lit, it is shorted out.

4. Other problems: (PLEASE HAVE SERIAL NUMBER OF SCALE WHEN CALLING)

A. Consult factory:

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.

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 4040IBC, Model 4041, Model 5305 are trademarks of Scaletron Industries Ltd. Total Electronic System is a service mark of Scaletron Industries

Ltd. PRINTED IN THE U.S.A. OCT 2004

VII. Board Diagram:

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 4040IBC, Model 4041, Model 5305 are trademarks of Scaletron Industries Ltd. Total Electronic System is a service mark of Scaletron Industries

Ltd. PRINTED IN THE U.S.A. OCT 2004

4-20mA Diagram:

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 4040IBC, Model 4041, Model 5305 are trademarks of Scaletron Industries Ltd. Total Electronic System is a service mark of Scaletron Industries

Ltd. PRINTED IN THE U.S.A. OCT 2004

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 4040IBC, Model 4041, Model 5305 are trademarks of Scaletron Industries Ltd. Total Electronic System is a service mark of Scaletron Industries