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Seca 644 - Service Manual

Seca 644
37 pages
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for seca 644/645
Service Manual
6441321004
6441321104
6441321134
6457021008
6457021098
6457021198
6457021228
6457021243
6457021288
Electronic scale with standing aid, easily manoeuvrable. Pre-tara function with
three adjustable values. Turnable display and operating housing.
Valid as of: 06.07.2011
Variants:
Content:
Short description display module 30-34-00-618 a
Short description DMS module 30-34-00-645 b
Description of faults 30-34-00-588 d
Function diagram 25-02-02-209 a
Description of calibration 30-34-00-603
PC configuration program 30-34-00-672 b
Cableplan 08-02-06-022 c
Replacement 30-34-00-678 a
Spare parts 30-34-00-679 f
Description:
Service Manual Number
17-05-01-305-g
Manual number: 17-05-01-305-g

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Questions and Answers

  • B
    bcollinsSep 8, 2025
    What to do if the display "tEMP" appears on Seca 644 Scales?
    • N
      Nicholas HatfieldSep 8, 2025
      If the display "tEMP" appears on the Seca Scales, it means that the ambient temperature of the scale is either too high or too low. To fix this, set up the scale in an ambient temperature between +10 °C and +40 °C. Alternatively, wait for around 15 minutes until the device has adapted to the ambient temperature.
  • R
    Rebecca JohnsonSep 10, 2025
    How to fix Seca Scales when no weight is displayed with a load?
    • T
      tammy06Sep 10, 2025
      If no weight is displayed on your Seca Scales when there is a load on it, check whether the scale is switched on.
  • A
    Alexander ThompsonSep 12, 2025
    Why does '0.00' not appear on Seca 644 before weighing?
    • H
      Heidi RiceSep 12, 2025
      If 0.00 does not appear on your Seca Scales before weighing, it could be because a load was already on the scale before it was switched on. Remove the load from the scale. Another reason could be an unspecified error, so try switching the scale off and back on again.
  • J
    Jennifer WrightSep 14, 2025
    What to do if Seca Scales display 'StOP'?
    • J
      Jack MendozaSep 14, 2025
      If the display on your Seca Scales shows "StOP", it means the maximum load has been exceeded. Remove some of the load from the scale.
  • D
    donna46Sep 15, 2025
    What does 'tEMP' mean on Seca 644 Scales display?
    • P
      Pamela EdwardsSep 16, 2025
      If the display on your Seca Scales shows "tEMP", the ambient temperature is too high or too low. Set up the scale in a location where the ambient temperature is between +10 °C and +40 °C, and wait approximately 15 minutes for the device to adapt to the ambient temperature.
  • D
    Debra RhodesSep 18, 2025
    Why are measurement results transmitted with two beeps after switching on Seca 644 Scales?
    • S
      smithmichaelSep 18, 2025
      After switching on your Seca Scales, if measurement results are transmitted and two beeps are heard, it could be due to a failure to send measurement results to the wireless receiver or interference from HF equipment. Make sure the scale is integrated into the wireless network and the receiver is switched on. Also, keep HF equipment at least 1 meter away from the transmitters and receivers.

Summary

Description of Faults

Scale Fails to Start

Identifies issues when the scale fails to power on or initiate operation.

Weight Reading Errors

Addresses problems with inaccurate, missing, or fluctuating weight readings.

Weighing Operation Errors

Lists specific error codes encountered during the weighing process.

Calibration Procedures

Recalibrating the Scales

Details the steps to switch to and perform recalibration mode.

PC Configuration Program

PC Configuration Instructions

Outlines the requirements and steps for PC-based diagnosis or recalibration.

Replacement Instructions

Seca 644 Specifications

General IconGeneral
Graduation100 g
DisplayLCD
FunctionsTARE, HOLD, BMI
Power SupplyBatteries
TypeDigital medical scale
Capacity300 kg

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