Test equipment analytical balances · Entris family

Sartorius Entris: troubleshooting and error codes

The ServiceForge knowledge base holds 10 documented symptoms for the Sartorius Entris, with 12 ranked causes, 43 diagnostic checks with test points and expected values, and 42 error codes. Each symptom below shows its causes and the first check; the rest is one connection away. Connect ServiceForge to your AI

Symptoms

Calibration: Eccentricity (EMC Models)

Verify that weight readings are consistent regardless of load position on the weighing pan for electromagnetic force compensation balances

Ranked causes

1. Eccentricity deviation exceeds tolerance (common)
2. Mechanical damage to weighing system (rare)

First check

Warm up device in measuring location

Test point: Balance in operational environment
Expected: Device at operating temperature

6 more checks with pass and fail actions, 2 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Weights not locked before transport caution

Internal adjustment weights are unsecured during transportation or relocation, risking damage to the weighing system

Ranked causes

1. Device not powered off before transport (common)
2. Balance performing calibration during transport (occasional)

First check

Verify device is powered off

Test point: A key
Expected: Device display off

1 more check with pass and fail actions, 2 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Avoid damage during calibration transport caution

Do not transport or relocate balance while calibration function is active, as internal adjustment weights are unsecured

Ranked causes

1. Balance transported during active calibration (rare)

First check

Verify no calibration function is active

Test point: balance display and status indicator
Expected: calibration complete or not running

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

Calibration: Internal adjustment weights

Internal adjustment weights must be locked in upper position before transportation or relocation to prevent damage to weighing system

Ranked causes

1. Weights unsecured during transport if not locked properly (common)

First check

Device powered off via A key

Test point: Power button A
Expected: Device off

2 more checks with pass and fail actions, 1 corrective action, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Calibration: Internal motor weight unit replacement

Replace internal motor weight unit (200 g or 1.5 kg) and recalibrate balance for accuracy and repeatability.

Ranked causes

1. Internal motor weight unit worn, damaged or requires maintenance (unknown)

First check

Secure internal motor weight unit with both screws at specified torque

Test point: Internal motor weight unit mounting screws
Expected: 200 g unit: 2.5 Nm; 1.5 kg unit: 6.5 Nm, As specified per unit type
Tools: Torque wrench

5 more checks with pass and fail actions, 4 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Calibration: Internal motor weight unit replacement for >1 million digit balances

Replace internal motor weight unit on high-resolution balances and perform scale method linearization and weight checking for reduced measurement uncertainty.

Ranked causes

1. Internal motor weight unit damaged, soiled or requires replacement on high-resolution balance (unknown)

First check

Determine if balance uses scale method for linearization

Test point: Balance configuration records
Expected: Scale method or alternative linearization method documented

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

Calibration: Lock internal adjustment weights caution

Procedure to secure internal adjustment weights before transportation or relocation to prevent damage to weighing system

Ranked causes

1. Internal adjustment weights unsecured during transport or relocation (common)

First check

Switch device off via A key

Test point: Balance power control
Expected: Device powered off

1 more check with pass and fail actions, 1 corrective action, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Electronic level indicator requires replacement

Electronic leveling sensor is malfunctioning, unresponsive, or needs calibration adjustment

Ranked causes

1. Electronic level indicator damaged or requires recalibration (unknown)

First check

Power off the balance

Test point: balance power switch
Expected: balance powered down

7 more checks with pass and fail actions, 1 corrective action, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Optical level indicator requires replacement

Level indicator bubble or lens is damaged, cracked, or no longer functional for leveling verification

Ranked causes

1. Optical level indicator damaged or worn (unknown)

First check

Open the balance

Test point: balance housing
Expected: balance opened

3 more checks with pass and fail actions, 1 corrective action, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Replace electronically-controlled level indicator caution

Electronic level indicator requires replacement

Ranked causes

1. Electronic level indicator failure or malfunction (unknown)

First check

Turn off the balance

Test point: Power switch
Expected: Balance powered down

8 more checks with pass and fail actions, 1 corrective action, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Error codes

Code	Meaning	Trigger	Severity
`01`	Display overflow (Dis.Err.)	Value to be output cannot be shown in the display	warning
`02`	Zero point error when starting calibration (Cal.Err.)	Balance was not tared, not set to zero, not unloaded, or zero point outside tolerance	warning
`03`	Zero point error at calibration end	During calibration/adjustment function end	warning
`06`	Error in internal motor weight unit (Cal.Err.)	Internal motor weight unit defective or not present	error
`07`	External adjustment blocked (Cal.Err.)	Span adjustment with external weights not permitted; access switch closed	warning
`08`	Zeroing error (Press-T)	Zeroing not possible as gross weight exceeds zero setting range (greater than 2% of max balance weight)	warning
`09`	Taring error	Taring attempted with gross weight ≤0 or negative value	warning
`10`	Taring error with memory conflict	Tare1 activation when 2nd tare memory contains data	warning
`17`	Calibration error with preload set	During calibration with preload enabled	error
`18`	Preload setting error (too small)	When setting preload	error
`19`	Preload setting error (too large)	When setting preload	error
`22`	App error in counting/percentage weighing init	During counting or percentage weighing setup	error
`23`	Application initialization error	During application startup	error
`241`	Checksum error in the BAC data set	Error while testing checksums, data set error in fixed data area, default menu, block flags, etc. of balance processor (BAC)	critical
`243`	Checksum error in the BAC menu area	Error when testing checksum, faulty menu area (EEPROM) of balance processor	critical
`245`	Checksum error in the BAC adjustment zero point	Error while testing checksum, faulty adjustment zero point/reference in data memory (EEPROM) of balance processor (BAC)	error
`247`	Checksum error in the BAC adjustment data	Error while testing checksum; adjustment data error in data memory (EEPROM) of balance processor (BAC)	error
`270`	RAM error, overflow (heap)	RAM error, not enough heap in balance processor (BAC)	critical
`271`	RAM error, overflow (command stack)	RAM error, overflow from command stack in balance processor (BAC)	critical
`272`	No values provided by the DMS system	Hardware error in the DMS system	error
`273`	No temperature data provided by the DMS system	Hardware error in the DMS system	error
`274`	Checksum error in the memory of the DMS system	Error while testing the checksum in the data memory of the DMS system	error
`280`	Parameter error at BAC filter configuration	EEPROM parameters for filter configuration are erroneous	error
`281`	Parameter error at BAC TC circuitry	EEPROM parameters for TC circuitry are erroneous	error
`282`	Parameter error at BAC creep compensation	EEPROM parameters for creep compensation are erroneous	error
`290`	Checksum error in the BAC system parameters	Error while testing checksum of system parameters in balance processor data memory	critical
`291`	Checksum error in the BAC analog parameters	Error while testing checksum of analog parameters in balance processor data memory	critical
`292`	Checksum error in the BAC digital parameters	Checksum error while testing digital parameters in balance processor data memory	critical
`30`	Print button blocked	During xBPI interface mode operation	error
`32`	SBI command interpreter buffer overflow	Multiple SBI commands sent without processing	error
`320`	Checksum error of the APC	Error when testing checksum of program memory ROM/FLASH of the APC	critical
`322`	NULLPTR Write access to the zero pointer Data storage area of the APC	Data written to zero pointer range in APC RAM data memory	critical
`333`	EERR. Checksum error program of the APC	Error detected during APC software program testing	critical
`398`	Communication error APC with BAC or MCU	Communication timeout or failure between APC and BAC/MCU; xBPI CM/CS timeout	critical
`50`	TC converter over/underflow	Temperature compensation circuit measurement out of range	error
`53`	TC converter failure	No measurement result received from TC circuit	critical
`54`	Weighing converter modulation too low	During weight measurement	error
`55`	Weighing converter modulation too high	During weight measurement	error
`58`	Fix2 multiplication overflow	During internal number format calculation	error
`79`	Missing adjustment data	At startup or during operation	warning
`83`	Internal clock module access error	At startup or during operation	warning
`92`	Battery error for internal clock module	During clock module operation	warning

Likely causes and actions for each code are in ServiceForge. Connect ServiceForge to your AI

Community

0 fixes logged by technicians through their AI, with outcomes, for this model.

ServiceForge knowledge base record. Field-unverified unless technicians confirmed it. A teaching summary of the record, not a service manual. Export 2026-10-14.