Uline H-5836, H-5837 Washdown Platform Scale

This manual provides instructions for the Uline H-5836 and H-5837 Washdown Platform Scales.

For Spanish instructions, see pages 13-24. For French instructions, see pages 25-36.

Contact Uline at 1-800-295-5510 or visit uline.com.

Tools Needed

• 2 mm Allen Wrench
• 4.5 mm Allen Wrench
• Phillips Screwdriver

Parts Included

• Display Indicator x 1
• Column x 1
• Platform Base x 1
• AC Adapter x 1
• RS-232 Adapter x 1

The Counting Feature is Not Legal for Trade.

Setup

Selecting the Location

Place the scale in an environment free from excessive air currents, corrosives, vibration, and temperature or humidity extremes, as these factors affect displayed weight readings. Avoid placing the scale near:

• Open windows or doors.
• Air conditioning or heat vents.
• Vibrating, rotating, or reciprocating equipment.
• Magnetic fields or equipment that generates them.
• Direct sunlight.
• Unstable work surfaces.
• Dusty environments.
• Large users of electricity (e.g., welding equipment, large motors).
• Unstable power sources.

Unpacking the Scale

1. Remove the scale parts from packaging.
2. Place the scale on a flat surface.
3. Remove the platform from the top of the scale base. (See Figure 1: Illustration showing the scale base and the platform.)
4. Remove the styrofoam pad from under the platform.

Removing the Shipping Screw

1. Remove the shipping screw from the bottom of the scale base using a 2 mm Allen wrench. (See Figure 2: Illustration showing the shipping screw location.)

Installing the Platform

1. Remove the protective covering from the scale platform.
2. Place the platform on top of the scale base.

❗ CAUTION: Do not press down with excessive force. This could damage the load cell.

Leveling

1. The scale is equipped with a level indicator located on the back of the scale on the base bracket. (See Figure 3: Illustration showing the base bracket, level indicator, and adjustable leveling foot.)
2. Use the adjustable leveling feet located on the bottom of the scale until the bubble appears in the center of the indicator. (See Figure 4: Illustration showing the level indicator with a bubble in the center for "Level" and off-center for "Not Level".)

ℹ️ NOTE: Check the level indicator every time the scale is moved to a new location to verify it is balanced.

Assembling the Column

1. Unscrew the carriage bolt in the column using a Phillips screwdriver and detach the support bracket. Unscrew four small Phillips head bolts from the support bracket. Set column, support bracket, carriage bolt, and small bolts aside.
2. On the base bracket, loosen two set screws using a 2 mm Allen wrench and the socket cap bolt using a 4.5 mm Allen wrench. (See Figure 5: Illustration showing base bracket, set screws, socket cap bolt, and display cable.)
3. Insert the column into the base bracket, ensuring it rests on the bottom. Pull the display cable all the way through the column so no slack is under the platform.
4. Secure the column with set screws (2 mm Allen wrench) and the socket cap bolt (4.5 mm Allen wrench), but do not tighten fully yet.

Attaching Indicator to the Column

1. Place the indicator bracket onto the top (flat side) of the support bracket. Align the large center holes and four small holes.
2. Insert four small Phillips head bolts through the small holes on the indicator bracket and support bracket. Tighten until securely attached.
3. Feed the black display cable from the display indicator through the large center holes in the indicator bracket and support bracket. Connect to the display cable end at the top of the column by aligning holes and pushing connectors together. Twist a quarter of a turn to lock into place. (See Figure 7: Illustration showing indicator bracket, support bracket, bolts, and cable connection.)
4. Place the support bracket into the column with the display facing the platform. Pull the display cable all the way through the column so excess is under the base bracket. Ensure the RS-232 cable is on the back of the display. (See Figure 8: Illustration showing column, support bracket, display indicator, knobs, cables, and AC adapter socket.)
5. Tilt the display to the desired position.
6. Insert the carriage bolt back into the column and tighten.
7. Tighten the base bracket set screws and socket cap bolt.

Connecting Power

The scale can operate continuously via the AC adapter or for eight hours on a fully charged battery.

⚠️ WARNING: Only use the original AC adapter and battery that came with the scale. Using an alternative could damage the scale.

AC Adapter

Plug the AC adapter into the AC adapter socket on the back of the indicator. Plug the AC adapter into a standard 110-volt outlet.

⚠️ WARNING: When the AC adapter is not in use, the AC adapter socket must be capped. Leaving the socket uncapped during water exposure could result in damage.

ℹ️ NOTE: Verify the local voltage and receptacle type are correct for the scale.

Battery

The scale is equipped with a rechargeable battery. A battery symbol will appear in the lower left corner when the voltage is low. After 15 minutes, the backlight will flicker and the display will show "Bat lo". The scale will automatically turn off 30 minutes after the symbol appears.

Charging the Battery

When the battery indicator (?) appears, the battery needs to be recharged. Plug the AC adapter into a power source. The scale does not need to be turned on. It takes 12 hours to fully charge the battery.

The charging indicator light color indicates battery status:

• RED: Battery needs to be recharged.
• ORANGE: Battery is being charged.
• GREEN: Battery is fully charged.

Battery Maintenance

Recharge the battery every three months when not in use. If the scale is not used for an extended period, remove the battery from the compartment to avoid leakage. Store the battery in a sealed bag or box in a dry, temperate environment.

Display and Keypad

Overview of Controls

The scale features a display and a keypad with various keys and indicators for operation.

Keypad Parts

• UNIT / ESC Key
• PCS / SET Key
• G/N Key
• ACC/TTL Print Key
• TARE Key
• ZERO Key
• ON/OFF Key
• Arrow Keys (Left/Right)
• Increment Key
• Enter Key

Display Definitions

• DISPLAY: Shows total weight, unit weight, and item count.
• CHARGE: Charging indicator.
• Battery indicator (?): Indicates low battery.
• UNIT: Changes weighing unit (lb, oz, kg).
• ESC: Exits setup menus.
• STABLE: Indicates stable weight reading.
• PCS: Enters counting operation.
• SET: Enters setup menu.
• ZERO: Zero indicator; clears display.
• G/N: Switches between Gross and Net weight display.
• GROSS: Gross weight indicator.
• ACC/TTL Print: Enters/shows accumulated weights or counts.
• Print Key: Sends data to a printer or PC.
• NET: Net weight indicator.
• TARE: Zeros out container weight.
• p: Value increment key.
• ZERO: Clears and zeros the display.
• Enter Key: Confirms menu selections.
• CURRENT WEIGHT: Displays current weight in accumulation mode.
• ON/OFF: Turns the scale on or off.
• TOTAL WEIGHT: Displays total weight in accumulation mode.
• HI/OK/LOW: Limit indicators for weighing and counting.
• LB/OZ/KG: Current weighing unit indicator.
• AUTO: Automatic accumulation mode indicator.
• HOLD: Dynamic weighing mode indicator.
• PCS%: Counting mode indicator.

Operation

Prior to Use

• Fully charge the battery before first use.
• Allow the scale to warm up for 15 minutes before use.

⚠️ WARNING: Never drop items onto the platform. The scale is a sensitive precision instrument.

⚠️ WARNING: Do not exceed the scale capacity and overload the scale.

⚠️ WARNING: Do not stack items on the scale platform when the scale is not in use.

❗ CAUTION: Never power the scale on with weight on the platform.

Turning the Scale On/Off

Press the ON/OFF key. The scale will show the version, enter a self-test mode, and then enter the weighing application mode. Press ON/OFF again to turn off.

Change Unit of Measure

Press the UNIT key until the desired weighing unit (lb, oz, or kg) appears.

Calibration

The scale is pre-calibrated. Calibration requires a precision test weight not exceeding the scale's capacity.

Calibration Weights

Single Point Calibration (SPAN)

Single point calibration uses two points: zero and full weight capacity.

1. Turn on the scale.
2. Press the PCS/SET key during the self-test. Display shows "pn".
3. Press G/N, then UNIT/ESC, then TARE. Display shows "----".
4. Press TARE until display shows "p 2 mod".
5. Press ZERO to confirm. Press TARE until display shows "sigr".
6. Press ZERO to confirm. Press TARE to select "cal".
7. Press ZERO to confirm.
8. Press ZERO to enter calibration. Display shows "unld".
9. Remove all weight from the platform.
10. When indicator is stable, press ZERO to confirm.
11. Display shows the last calibration weight. Change the value to the scale's full capacity. Use G/N and ACCT/TTL/Print keys to change digits, TARE key to change value.
12. When the calibration value is correct, press ZERO to confirm.
13. Display shows "load".
14. Place the calibration weight on the platform.
15. When indicator is stable, press ZERO to confirm.
16. Display returns to weighing mode.

Zero

If a minor weight is displayed with nothing on the platform, press the ZERO key to clear the display. The Zero indicator will be shown.

Tare

To zero out the weight of a container:

1. Place an empty container on the platform.
2. Press the TARE key. The Net indicator will be displayed, and the display will show zero.
3. Add items to the container; their net weight will be displayed.
4. Press the G/N key to display the gross weight.
5. Removing the container will show its negative weight. Pressing TARE will reset the scale to zero.

Weighing

Place the item to be weighed on the scale platform. The weight will be shown on the display.

Counting

Use this mode to count parts of uniform weight.

Sample of Unit Weight

1. Place objects for sampling on the platform.
2. Press the PCS/SET key to enter counting mode. Display shows "P 10".
3. Press the TARE key to change the sample quantity (10, 20, 50, 100, or 200 units).
4. Press the ZERO key. Display shows "----" followed by the sample quantity.
5. Place remaining objects on the platform. The total quantity will be displayed.
6. Press the PCS/SET key to exit to normal weighing mode.

Lack of Unit Weight

For accurate calculations, the minimum piece weight must be at least 20 times the scale accuracy.

Using the scale with a unit weight that is too light will result in less accurate results.

Check Weighing

This mode sets high/low limits. The scale beeps when the weight is within the preset range. HI, OK, or LO indicators show the status.

Set Check Weight

ℹ️ NOTE: Weight on the platform must be equal to or greater than the minimum weight for accurate check weighing.

1. Press UNIT and PCS/SET keys simultaneously. Display shows "SEt H".
2. To set the high limit, press ZERO. Display shows "00000" with the last digit blinking.
3. Key in the high limit using G/N and ACC/TTL keys to move the digit, and TARE key to increase the value.
4. Press ZERO to confirm. Display shows "Set H".
5. Press TARE until "Set L" is shown.
6. To set the low limit, press ZERO. Display shows "00000" with the last digit blinking.
7. Key in the low limit using G/N and ACC/TTL keys to move the digit, and TARE key to increase the value.
8. Press ZERO to confirm.
9. Press UNIT to exit to weighing mode.

Check Weight Operation

Place item on the platform. Scale beeps if weight is within the specified range. Indicators (HI, OK, LO) show status.

Clear Check Weight

1. Press UNIT and PCS/SET keys simultaneously until "SEt H" is shown.
2. To clear the high limit, press ZERO. Display shows "00000" blinking.
3. Press PCS key to clear the value.
4. Press ZERO to confirm. Display shows "Set H".
5. Press TARE until "Set L" is shown.
6. To clear the low limit, press ZERO. Display shows "00000" blinking.
7. Press PCS key to clear the value.
8. Press ZERO to confirm.
9. Press UNIT to exit to weighing mode.

Accumulation

Measures cumulative weight or counts (max 99 entries or scale capacity).

Manual Accumulation

ℹ️ NOTE: Weight on platform must be equal to or greater than minimum weight for accurate accumulation.

1. Weigh or count items as described previously.
2. Once the stable indicator is shown, press ACC/TTL Print. "ACC 1" is shown, followed by the total value for three seconds. Data is stored. If a printer is connected, data prints.
3. Remove items from the platform. Display returns to zero or a negative value.
4. Add additional items. Press ACC/TTL Print when stable to add new data. Continue until all data is added.

Recall Data

With nothing on the platform, press and release ACC/TTL Print to display the total accumulated value and the number of entries.

Clear Data

To clear stored data, press and hold G/N and ACC/TTL Print keys simultaneously. "ACC 0" is shown, and all accumulated values are cleared.

Automatic Accumulation

Automatically adds weighing/counting values to memory and prints them if a printer is connected. The "Auto" indicator will be shown.

ℹ️ NOTE: Automatic accumulation must be enabled (see Setup section).

1. Place items on the scale platform.
2. Once the stable indicator is shown, the scale beeps. "ACC 1" is shown, and the total value is displayed for three seconds. Data is stored.
3. Remove items. Display returns to zero or negative.
4. Add more items. New data is added to memory.
5. Recall and clear data as described above.

Dynamic Weighing

Use this mode to weigh moving items. The "Hold" indicator appears.

1. Press TARE and ZERO keys simultaneously to enter dynamic weighing mode.
2. Place item on the platform. Once stable, the final weight is shown.
3. Press TARE and ZERO simultaneously to exit dynamic weighing mode.

RS-232

Connect the gray RS-232 adapter to the RS-232 cable on the display indicator. (See Figure 9: Illustration showing RS-232 cable and adapter.)

Specifications

RS-232 output of weighing data:

• Code: ASCII
• Data Bits: 8 data bits
• Parity: No Parity
• Baud Rate: 600bps – 900bps selectable.

RS-232 (9-PIN D TYPE CONNECTOR)

Pinout:

• Pin 2: RXD (Input)
• Pin 3: TXD (Transmission)
• Pin 5: GND (Signal Ground)

Scale Pinout to Computer/Printer:

Check Weighing Output

• Pin 1: VB
• Pin 4: Vcc 5v (Output)
• Pin 5: Com (Ground)
• Pin 6: Ok (Output)
• Pin 7: Low (Output)
• Pin 8: Hi (Output)
• Pin 9: Beep (Output)

Continuous Output Protocol

Weighing Mode:

-- HEADER 1 --
-- HEADER 2 --
-- WEIGH DATA --
-- WEIGH UNIT --
TERMINATOR

Counting Mode:

PCS :
-- QTY --
-- QTY UNIT --

HEADER1: ST=STABLE, US=UNSTABLE
HEADER2: NT=NET, GS=GROSS

k g CR LF

p c s CR LF

RS-232 Data Structure Examples (Con2, Con3)

Detailed data formats for weighing and counting modes are provided, including headers, weight data, units, status, and terminators. These specify byte values for different states and units (e.g., Header0=02H, Header1 follows decimal point, Header2 follows weigh status, Header3 follows weighing unit).

Legal for Trade

When used for trade or legally controlled applications, the indicator must be set up, verified, and sealed according to local weights and measures regulations. The purchaser is responsible for meeting all legal requirements.

Calibration (Legal for Trade)

1. Break the seal on the indicator housing.
2. Open the housing.
3. Follow calibration steps 1-5 on page 5.
4. After step 5, press the calibration switch on the mainboard. (See Figure 10: Illustration showing the calibration switch.)
5. Complete the remaining calibration steps on page 5.

Verification

A local weights and measures official or authorized service agent must perform the verification procedure.

Sealing

A security seal must be applied by an authorized official to prevent tampering with settings.

Setup Menu

Backlight

Adjust backlight settings: Auto (default), On (always on), Off (never on).

1. Press and hold ZERO for 3 seconds. Display shows "SET bF".
2. Press ZERO to enter the backlight menu.
3. Press TARE to select desired setting.
4. Press ZERO to select the new setting.
5. Press UNIT to exit the sub-menu.

Auto Power-Off

Configure the scale to turn off automatically after a period of inactivity when stable at zero.

1. Press and hold ZERO for three seconds. Display shows "SET bF".
2. Press TARE until "SET oF" is shown.
3. Press ZERO to enter the auto power-off menu.
4. Press TARE to select desired setting (Off, oF 5 [5 minutes], oF 15 [15 minutes]).
5. Press ZERO to select the new setting.
6. Press UNIT to exit the sub-menu.

High/Low Limit Beeping Sound

Configure beeping sounds for limit settings.

1. Press UNIT and PCS/SET simultaneously until "SEt H" is shown.
2. Press TARE until "bEEP" is shown.
3. Press ZERO to enter the submenu.
4. Press TARE to select desired setting (nonE [no beeps], o [between limits], nG [outside limits]).
5. Press ZERO to select the new setting.
6. Press UNIT to exit to weighing mode.

Enable Dynamic Weighing

Turn dynamic weighing mode on or off.

1. Turn on scale, press PCS during self-test. Display shows "Pn".
2. Press G/N, then UNIT, then TARE. Display shows "Po CHF".
3. Press TARE until "P3 oth" is shown.
4. Press ZERO to enter the menu. Display shows "anm".
5. Press ZERO to enter the submenu.
6. Press TARE to select desired setting (on or oFF).
7. Press ZERO to select the new setting.
8. Press UNIT twice to exit the menu.

Enable Accumulation, Auto Accumulation and RS-232

Configure accumulation modes and RS-232 communication settings.

1. Turn on scale, press PCS during self-test. Display shows "Pn".
2. Press G/N, then UNIT, then TARE. Display shows "Po CHF".
3. Press TARE until "P1 com" is shown.
4. Press ZERO to enter the menu. Display shows "Mode".
5. Press ZERO to enter the submenu.
6. Press TARE to select desired setting (Cont, St 1, St C, Pr1, Pr2, Auto).
7. Press ZERO to select the new setting.
8. Press UNIT twice to exit the menu.

Baud Rate

Set the RS-232 transmission speed. Both scale and printer must match.

1. Turn on scale, press PCS during self-test. Display shows "Pn".
2. Press G/N, then UNIT, then TARE. Display shows "Po CHF".
3. Press TARE until "P1 com" is shown.
4. Press ZERO to enter the menu. Display shows "Mode".
5. Press TARE until "Baud" is shown.
6. Press ZERO to enter the sub menu.
7. Press TARE to select desired setting (600, 1200, 2400, 4800, 9600).
8. Press ZERO to select the new setting.
9. Press UNIT twice to exit the menu.

Printer Setup

Select printer type.

1. Turn on scale, press PCS during self-test. Display shows "Pn".
2. Press G/N, then UNIT, then TARE. Display shows "Po CHF".
3. Press TARE until "P1 com" is shown.
4. Press ZERO to enter the menu. Display shows "Mode".
5. Press TARE until "Ptype" is shown.
6. Press ZERO to enter the sub menu.
7. Press TARE to select desired setting (tPUP [Ticket printer], LP-50 [Label Printer]).
8. Press ZERO to select the new setting.
9. Press UNIT twice to exit the menu.

Maintenance

Cleaning

❗ CAUTION: Disconnect the unit from the AC adapter and cap the AC adapter socket before cleaning. Do not use pressure washers or high-pressure water jets. The scale is rated IP65 for use with hoses.

Use a mild detergent for the display and keypad. Do not use solvents, chemicals, alcohol, ammonia, or abrasives.

Use a stainless steel cleaning solution for the stainless steel indicator housing and platform. Apply cleaner to a damp cloth and wipe surfaces. Dry thoroughly.

Troubleshooting

If the problem persists or is not described here, contact Uline Customer Service at 1-800-295-5510.