Rice Lake SD-1150-WP User Manual

Summit SD-1150-WP

Dialysis Scale

Software Revision 11439

Technical

Manual

156445 - Rev B

Contents

Technical training seminars are available through Rice Lake Weighing Systems.

Course descriptions and dates can be viewed at www.ricelake.com or obtained

by calling 715-234-9171 and asking for the training department

1.0 Introduction and System Overview.............................................................................................. 1

2.0 Safety ........................................................................................................................................... 2

2.1 Safety Signals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

2.2 Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

3.0 Scale Installation......................................................................................................................... 3

4.0 Adjustments and Calibration ....................................................................................................... 6

5.0 Indicator Installation ................................................................................................................... 8

6.0 Scale Operation ........................................................................................................................... 9

7.0 Scale Configuration ................................................................................................................... 12

8.0 Test Menu................................................................................................................................... 18

9.0 RS-232 Communication............................................................................................................. 19

10.0 Troubleshooting and Testing ..................................................................................................... 26

11.0 Maintenance .............................................................................................................................. 26

12.0 Summit SD-1150-WP Scale Specifications .............................................................................. 29

For More Information ............................................................................................................................. 30

Warranty................................................................................................................................................. 31

3.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

3.2 Site Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

3.3 Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

3.4 Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

3.5 Electrical Interface to Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

3.6 Pit Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

4.1 Mechanical Adjustments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

4.2 Corner Correction/Trimming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

4.3 Calibration Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

5.1 Indicator Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

6.1 Weighing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

6.2 Hold/Release Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

6.3 Preset Tare. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

6.4 Toggle Tare . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

6.5 Using the Body Mass Index (BMI) Function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

7.1 Programming Mode Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

7.2 Default Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

7.3 Scale Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

9.1 Push-Button Keypad Print . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

9.2 Communication Protocols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

9.2.1 Escape Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

9.2.2 Maintenance Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

9.3 USB Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

11.1 Basic Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

11.2 Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

11.3 Load Cell Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

11.3.1 Load Cell Wiring to Junction Box. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Rice Lake Weighing Systems is an ISO 9001 registered company.

Software revision 11439, September 2014 Rev. B

ii Summit SD-1150-WP Dialysis Scale Installation & Operation Manual

1.0 Introduction and System Overview

The Summit® SD-1150-WP Dialysis Scale is a heavy-duty scale that offers exceptional performance in dialysis centers and hospitals. The patient simply walks, or is wheeled onto the weighing platform and is weighed.

The Summit SD-1150-WP Dialysis Scale is a fully electronic, low profile floor scale that measures 36 in x 36 in (.91 m x .91 m), and has a capacity up to 1000 lb (500 kg). The SD-1150-WP uses four corner-mounted, alloy steel shear beam load cells, with the cells recessed into the frame channels for protection. The SD-1150-WP is designed to be mounted in a pit flush with the floor.

Load cell cables are run through the main channels, and held down with replaceable cable ties near each corner, eliminating the possibility of cable damage. One threaded hole, located in the center of the deck, is another useful feature which allows for placement of a removable eyebolt to lift the scale from above with chains. Because of the possibility of foot and load cell damage from forklift tines, the scale should always be lifted from above with chains through the eyebolt which is illustrated in

The adjustable feet are used to allow leveling the scale to make up for minor floor irregularities. The Summit SD-1150-WP comes equipped with a large 1" LCD indicator display and 6 AA batteries for use

when power is not readily available. There is an optional 120/230V AC adapter which can be purchased.

This manual can be viewed and downloaded from the Rice Lake Weighing Systems web site at www.ricelakehealth.com.

Figure 3-1 on page 3.

Figure 1-1. SD-1150-WP Scale

SD-1150-WP Installation & Operation Manual - Introduction and System Overview 1

2.0 Safety

WARNING

CAUTION

Important

WARNING

There are certain precautions that should be taken to prevent personal injury to the user and damage to your scale.

2.1 Safety Signals

Safety Signal Definitions:

Indicates a potentially hazardous situation that, if not avoided, could result in death or serious injury.

Indicates a potentially hazardous situation that, if not avoided, may result in minor or moderate injury.

Indicates information about procedures that, if not observed, could result in damage to equipment.

2.2 Safety Precautions

Do not operate or work on this equipment unless you have read and understand instructions in the manual. Failure to follow the instructions or heed the warnings could result in injury or death. Contact any Rice Lake Weighing Systems dealer for replacement manuals. Proper care is your responsibility.

Before attempting to operate this unit, make sure every individual who operates or works with this unit has read and understands the following safety information. Please follow these instructions carefully.

• Do not drop the scale or subject it to violent shocks.

• For accurate weighing, the scale must be placed on a flat, stable surface.

• Do not transport the scale while someone is standing on it.

• Weight exceeding the maximum capacity (1000 lb/500 kg) may damage your scale.

• Operating at voltages and frequencies other than specified could damage the equipment.

• If the LO Bat indicator activates, for accurate weighing, replace the batteries or connect the scale to an AC power source as soon as possible.

• To avoid cross contamination, the scale should be cleaned regularly.

• Avoid contact with excessive moisture.

• Do not allow minors (children) or inexperienced persons to operate this scale.

• Do not jump up and down on the scale.

• Do not use in the presence of flammable materials.

• Do not make alterations or modifications to the scale.

• People with disabilities, or who are physically frail, should always be assisted by another person when using this scale.

• Do not use the scale on slippery surfaces, such as a wet floor.

• Do not use this scale when your body/feet are wet, such as after taking a bath.

2 SD-1150-WP Installation & Operation Manual

3.0 Scale Installation

The following sections describe the correct installation procedures when installing the Summit SD-1150-WP Dialysis Scale.

3.1 Overview

Standard installation of the Summit SD-1150-WP Dialysis Scale consists of the following steps:

1. Select a site.

2. Unpack the scale and pit frame.

3. Install the pit frame.

4. Lower the scale into pit frame.

5. Adjust the four leveling feet on the scale.

6. Connect cable to the indicator.

7. Calibrate the scale.

3.2 Site Preparation

The scale must not be loaded beyond its capacity, even momentarily. Avoid areas where the scale might receive damaging side impacts from wheels, or shock damage from falling objects. Avoid areas where water may damage a scale not meant for a washdown environment.

The interface cable between the scale and the indicator must be protected against crushing, cutting, or moisture damage. If the chosen site has such potential dangers, some method of protection, such as running the cable in conduit, is necessary.

In operation, the scale must be level within 1/4". Either choose a site where the floor is close to this standard to avoid excessive shimming, or modify the floor at the chosen site to meet this standard.

3.3 Unpacking

Remove all packing material and visually inspect the scale and pit frame for visible damage caused during shipment. The shipping container should contain the scale, pit frame, scale feet, this manual, the indicator, and a 10-ft length of load cell cable.

The Summit SD-1150-WP Dialysis Scale has one threaded eyebolt hole located in the center of the deck to allow installation of an eyebolt hook for use when lifting the scale with chains. It’s recommended to use a 1/2 in-20NF eyebolt to lift the scale.

Figure 3-1. Proper Lifting Technique

SD-1150-WP Installation & Operation Manual - Scale Installation 3

3.4 Assembly

Indicator Ter m in a l Location

For load cell protection during shipping, the scale feet are shipped separately from the floor scale. Screw one foot into each load cell and turn all the way in until the foot touches either the load cell or the

underside of the deck. Then unscrew each foot three complete turns. Place a spirit level on the deck. Adjust any “high” corners not in contact with the floor by further unscrewing the

feet on those corners until they just contact the floor surface. When all feet are in contact with the floor, check the deck with the spirit level to be sure the scale is within 1/4 inch of level.

3.5 Electrical Interface to Indicator

Ten feet of 4-wire cable to connect the scale to the weight indicator is supplied with each scale. The junction box is easily accessible through an access plate located on the side of the Summit SD-1150-WP. Use the following steps to wire up the junction box.

1. Remove the two #10 x 3/8" screws.

2. Slide the junction box assembly out of the deck.

3. Open and remove the top of junction box.

4. Push the cable end into the junction box through a cord grip.

5. Connect the wires to the indicator terminal (Figure 3-2) as shown in Tab le 3-1.

6. Pull out excess and tighten the cord grip to hold the cable snugly.

Cable Color Code Junction Box

Red + Excitation

Black - Excitation

Green + Signal

White - Signal

Bare Shield

Table 3-1. Junction Box Connections

Figure 3-2. Junction Box Wiring Diagram

7. The cable must be routed to the indicator in a manner that will protect the cable from damage. This method of cable protection in non-washdown applications are shown in routing, leave a loose coil of excess cable under the scale to facilitate future lifting of the scale for

Figure 3-3. When planning cable

4 SD-1150-WP Installation & Operation Manual

servicing or cleaning.

SCALE FLOOR

LOAD CELL CABLE

Figure 3-3. Load Cell Protection

8. When the interface cable is protected and in its final position, complete connections to the indicator. See the indicator installation manual for wiring information.

9. If necessary, trim corners as described in Section 4.2 on page 7.

10. Check all strain relief fittings for tightness.

11. Put the cover back onto the junction box assembly and slide the junction box back into the floor scale cutout.

12. Secure the Summit SD-1150-WP side plate.

3.6 Pit Installation

The Summit SD-1150-WP Dialysis Scale can be installed in a shallow pit using the optional Summit SD-1150-WP pit frame. Optional height-adjustment holes are available. The following site considerations and pit frame drawings are meant only as a brief overview of the principles involved with mounting the scale in a floor-level pit. The pit must be installed in a suitable poured-concrete foundation according to standard construction practices.

Figure 3-4. Pit Frame Diagram

Site Considerations

Debris, floor sweepings, or material spills may accumulate in the pit and interfere with scale operation. You should periodically clean the pit. The Summit SD-1150-WP has a threaded hole centrally located for eyebolts so the scale can be easily lifted from the pit.

SD-1150-WP Installation & Operation Manual - Scale Installation 5

A 1:24 slope is recommended for the pit, with full grouting under the corner pads as shown in Figure 3-5.

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Figure 3-5. Section Showing Installed Summit SD-1150-WP and Pit Frame

6 SD-1150-WP Installation & Operation Manual

4.0 Adjustments and Calibration

Potentiometers

The following sections describe adjustments that need to be made to the Summit SD-1150-WP Dialysis Scale.

4.1 Mechanical Adjustments

To accommodate minor floor unevenness, the scale feet can be used to adjust scale height up or down a fraction of an inch. Adjust the feet by hand (lift the scale corner slightly with a pry bar) until all feet are contacting the floor equally. No jam nuts are supplied for locking the feet, as there is a slight decrease in accuracy when jam nuts are tightened. However, if you feel that your application requires you to secure the feet, we suggest using

Teflon

When adjusting scale feet, use care to prevent the scale foot from bottoming out against the underside of the load cell. Also, the foot stem can be damaged by bending or stripping threads if extended beyond the maximum height adjustment.

When height adjustments are complete, recheck level of the deck with a spirit level. The deck must be level within 1/4".

4.2 Corner Correction/Trimming

The assembled Summit SD-1150-WP scale is delivered with the junction box corner-trimmed. Corner trimming is only necessary after replacing a load cell.

To calibrate the scale, the output from each load cell must be matched by adjusting the signals with potentiometers at the junction box—a process known as trimming.

Remove the junction box cover and identify the correct load cell terminal corresponding to each corner (labeled CELL 1, CELL 2, and so on). See

The indicator must be connected and calibrated approximately, but it need not indicate the exact weight value. A test weight is required. The recommended test weight for the SD-1150-WP is 25% of scale capacity.

With no weight on the scale, zero the indicator. Then turn all four potentiometers (Figure 4-1) clockwise to increase the reading until a clicking sound is heard from each potentiometer. This ensures the maximum signal from each load cell.

tape or Loctite®.

Section 11.3.1 on page 28 for scale deck corner numbering.

Figure 4-1. Summing Board Diagram

Tef lo n® and Loctite® are both registered trademarks of E.I. DuPont.

SD-1150-WP Installation & Operation Manual - Adjustments and Calibration 7

With all potentiometers at full signal, place the test weight over one corner and record the indicated weight. Repeat the process for each of the other three corners. The load cell with the lowest corner reading is used as a reference point and will not be trimmed.

Next, place the test weight over one of the other three corners and use that cell’s potentiometer to adjust the cell output down to the reference cell output. Repeat this procedure with the other two high corners.

Adjustments are somewhat interactive, and adjusting the three higher outputs may affect the reference cell output, especially in smaller scale decks. Rezero the indicator and repeat the test until all corners read within ±.1% of the test weight used.

4.3 Calibration Procedure

It is recommended that the scale be “exercised” before calibration to be certain that everything is seated. Load the scale to near capacity two or three times.

Then, with no load on the scale, place the indicator in its calibration mode and perform a zero calibration. Now place test weights on the platform equal to 70% - 80% of the scale’s capacity. If several weights are used, they should be evenly distributed around the platform. Perform a span calibration.

Remove the test weights and check the zero reading. Repeat the calibration process if necessary.

8 SD-1150-WP Installation & Operation Manual

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