Scaletron 4042 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 4042™AND 4042WB™ - 4½DIGIT

SECONDARY SPILL CONTAINMENT SCALE

2310, Model 2330, Model 2350, Model 2352, Model 2353, Model 3001, Model 3002, Model 3001 SI, Model 3002 DI, Model 3003, Model 3004, Model 3005, Model 3006, Model 3050-1,

Model 3050-2, Model 4010, Model 4020, Model 4021, Model 4030, Model 4040, Model 4042, Model 4042WB,Model 4041, Model 4042, Model 4042 WB, Model 5305, Model 5305-2, and

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 equipment item to prevent shipping

damage. Carefully inspect each equipment item, and report damage immediately. Report damage

claims to shipping agent involved for equipment shipped F.O.B. job site. Do Not Install Any Damaged

Equipment.

All instruction given on any labels, or attached tags, should be followed. Carefully inspect all

packing material before discarding to prevent loss of accessories, mounting hardware, spare parts, or

instructions.

TABLEOFCONTENTS PAGE

I. GENERAL DESCRIPTION…………………………………………………………………………….1

II. SPECIFICATIONS……………………………………………………………………………………1-2

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

IV. GENERAL USE INSTRUCTIONS…………………………………………………………...……2 - 3

V. CALIBRATION PROCEEDURE…………………………………………………………..………3 - 4

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

VII. BOARD DIAGRAM……………………………………………………………………………………..5

I. General Description:

The Model 4042™ and Model 4042WB™ with 4 ½ Digit Indicator was designed with a built-in

containment basin. The load being weighed may be placed anywhere on the platform without

affecting the weight displayed. The strain gauge load cell system provides ease of locating the

digital indicator in a remote location. The four conductor shielded cable required can be run

through conduit to a location within 200 ft. from the base. A current output signal of 4-20 mA,

0-20 mA, or +12 mA, - 8 mA, is standard. It is also selectable as active, or passive. There are

two independently adjustable dry contacts for use as low level alarm, or automatic dialer

equipment, as required. The printed circuit board contains a power supply section and

separate zero and span controls. The weighmeter electronics are housed in a NEMA 4X, UL

approved fiberglass enclosure.

II. Specifications:

Display: LED, 4 ½ Digit with minus sign, 0.56 inch high, seven segment

Resolution: Indicator: 1999.9 lb x 0.1 lb, or 2000 to 19999 lb. x 1.0 lb.

Load Cell Excitation: 16 VDC Power

Zero Adjustment: Internal potentiometer, R-25 med., and R-23 fine. DIP switches SW-B 1-6

for course adjust, jumper J-8 to change polarity of adjustment

Span Adjustment: Internal potentiometer R-12 for med., and R-13 for fine. 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.

2310, Model 2330, Model 2350, Model 2352, Model 2353, Model 3001, Model 3002, Model 3001 SI, Model 3002 DI, Model 3003, Model 3004, Model 3005, Model 3006, Model 3050-1,

Model 3050-2, Model 4010, Model 4020, Model 4021, Model 4030, Model 4040, Model 4042, Model 4042WB,Model 4041, Model 4042, Model 4042 WB, Model 5305, Model 5305-2, and

Dimensions: Base sizes: Various sizes available

III. Assembly and Start-Up:

The set up procedure is as follows:

1. Locate a solid, relatively level spot on the floor to install scale platform. Clean all debris that

may interfere with scale clearance.

VERY IMPORTANT: If Model 4042WB™, make sure that expandable bladder has room

and clearance to expand without coming into contact with any other objects that may

cause a leak or obstruct proper expansion o the bladder!!!

2. If conduit is used, about 2’ of horizontal, flexible conduit should be connected horizontally to

frame before using rigid conduit.

3. The scale is calibrated at the factory with certified test weights and should not need

calibrating when installing!

4. Mount digital indicator to wall and attach conduit for load cell cable and output signals as

required.

5. Connect load cell cable from load cell, or junction box, to TB-1 as follows:

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)

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.

Note: If sense leads are used from load cell to indicator, jumpers J-5 & J-6 must be cut on the

3000™ PC board. If sense leads are not required, then jumpers must be installed. Sense

leads are only required if the distance between scale base and digital indicator is in excess of

100’.

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

2310, Model 2330, Model 2350, Model 2352, Model 2353, Model 3001, Model 3002, Model 3001 SI, Model 3002 DI, Model 3003, Model 3004, Model 3005, Model 3006, Model 3050-1,

Model 3050-2, Model 4010, Model 4020, Model 4021, Model 4030, Model 4040, Model 4042, Model 4042WB,Model 4041, Model 4042, Model 4042 WB, Model 5305, Model 5305-2, and

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

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 4042™and Model 4042WB™ Secondary Spill Containment 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 replaced, the following calibration procedure should be

used.

1. Once scale is leveled with no weight on scale, it is ready for calibration. Turn black knob

(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.

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

2310, Model 2330, Model 2350, Model 2352, Model 2353, Model 3001, Model 3002, Model 3001 SI, Model 3002 DI, Model 3003, Model 3004, Model 3005, Model 3006, Model 3050-1,

Model 3050-2, Model 4010, Model 4020, Model 4021, Model 4030, Model 4040, Model 4042, Model 4042WB,Model 4041, Model 4042, Model 4042 WB, Model 5305, Model 5305-2, and

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 maximum load.

(Contacts are closed below set point.)

VI. Troubleshooting:

Please contact the 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.

2310, Model 2330, Model 2350, Model 2352, Model 2353, Model 3001, Model 3002, Model 3001 SI, Model 3002 DI, Model 3003, Model 3004, Model 3005, Model 3006, Model 3050-1,

Model 3050-2, Model 4010, Model 4020, Model 4021, Model 4030, Model 4040, Model 4042, Model 4042WB,Model 4041, Model 4042, Model 4042 WB, Model 5305, Model 5305-2, and