Rice Lake 250-10 Series Operations Instructions download pdf (Page 25)

Digital Handrail Scale Technical & Operating Instructions - Troubleshooting and Testing 21

8.0 Troubleshooting and Testing

Refer to the following to check and correct any failure before contacting service personnel.

Table 8-1. Troubleshooting Table for the Rice Lake Scale Line

Symptom Possible Cause Corrective Action

Scale does not turn on Dead battery Connect the scale to a power source.

Faulty electrical outlet Use a different electrical outlet.

Bad power supply Replace adaptor.

Questionable weight or the

cale does not zero

External object is interfering

with the scale.

Remove the interfering object from the scale.

Display did not show 0.0 before

weighi

ng.

Help the patient off the scale, zero the scale and begin the weighing process

again.

Scale is not placed on a level

floor

Ensure the scale is level and begin the weighing process again.

Scale is out of calibration. Check the weight with a known weight va

lue.

The display shows E messages as detailed below.

E06 Identifier - ADC AD too high

E07 AD too low

E10 Overload Scale has been overloaded. Remove load from scale.

E4L BAT

Battery low but still useable

— 1 bar left on the indicator display.

E4U

Battery low and unstable

— no bars left on the indicator display.

E11 CAL

Calibration Error

— recalibrate the scale again.

Err 2 Low saturation state (low A/D) The load cell is not connected properly

. Check the cables and mechanical

connections. If the problem persists, replace the set of load cells.

Err 3 High saturation state (hig

h A/D) See Err 2.

Err 6 Unstable weight. Cannot

librate.

Check the load cells’ mechanical surroundings and see that nothing touches

them and that the cables are properly welded.

SAT Damaged load cell cable Replace load cell cable.

9.0 Maintenance

The following section provides instructions for maintaining and cleaning the Rice Lake line of scales.

Maintenance operations other than those described in this section should be performed by qualified service

personnel.

9.1 Basic Maintenance

Before the first use of the scale and after periods of non-use, check the scale for proper operation and function. If

the scale does not operate correctly, contact qualified service personnel.

Go through the following ste

ps for basic maintenance.

1. Check the overall appearance of the entire scale fo

r any obvious signs of damage.

2. Inspect the condition of the AC adaptor

for cord cracking or fraying or for broken or bent prongs.

9.2 Cleaning

Proper care and cleaning is essential to ensure a long life of accurate and effective operation. Before beginning

the cleaning process, disconnect the scale from the AC power source.

1. Clean all external surfaces with a clean, damp cloth or tissue. Mild

soap and water solution may be used.

Dry with a clean soft cloth.

2. Do not immerse the scale in cleaning or other liquid solutions.

3. Do not use isopropyl alcohol or other solutions to cl

ean the display surface.

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Rice Lake 250-10 Series Operations Instructions Page 25

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