Sartorius Entris 224-1S Manual, Explained: Setup, Calibration and Error Codes

By MNM Scales · Last updated November 2, 2026

The Sartorius Entris 224-1S (model ENTRIS224-1S) is a 220 g x 0.0001 g analytical balance from the first-generation Sartorius Entris line, with a sliding-panel glass draft shield, a 90 mm pan, a backlit display, a 25-pin RS-232 port and external calibration. Sartorius wrote one manual for the whole Entris family, from the 60 g Entris 64 to the 8,200 g Entris 8201, so owners have to pick the 224-1S numbers out of shared tables. Below are the Entris 224-1S figures from that manual, with display messages written as the balance shows them. If you run the newer Entris II, see our Entris II manual guide instead.

Sartorius Entris 224-1S manual at a glance: specifications

Item	Entris 224-1S
Capacity x readability	220 g x 0.0001 g (0.1 mg)
Tare range (subtractive)	220 g
Repeatability (standard deviation)	Less than ±0.1 mg
Linearity deviation	Less than ±0.2 mg
Typical stabilization time	2.5 seconds
Sensitivity drift	Less than ±3 ppm per K (+10 to +30 °C)
Filter	4 levels for ambient conditions; display update 0.1 to 0.4 seconds
Calibration	External; 200 g weight of accuracy class E2 or better
Pan and chamber	90 mm round pan; 230 mm from pan to the top draft shield panel
Dimensions and weight	230 x 303 x 330 mm (W x D x H); about 4.4 kg
Power	Sartorius AC adapter YEPS01-15VO, 100 to 240 V AC; 16 VA maximum, 8 VA typical
Operating temperature	+10 to +40 °C
Data port	25-pin RS-232 (female) on the back

What comes in the box

• Balance, weighing pan and pan support.
• AC adapter with country-specific plug adapters (the US plug is YEPS01-PS1).
• Draft shield parts for the 0.1 mg models: sliding-panel draft shield, shield disk, shield plate and dust cover.
• Not included: the 200 g E2 calibration weight, data cables, a printer, the YRB11Z external battery pack and the YDK03 density kit. Keep the original packaging for shipping and mail-in service.

Setting up the Entris 224-1S

1. Unpack and inspect: check the balance for shipping damage right away and save all packaging. Do not ship it with cables plugged in.
2. Pick the spot: a firm bench away from heaters, direct sun, drafts from windows and doors, vibration and high humidity. At 0.1 mg, an air vent or a busy walkway shows up in the last digit.
3. Let it acclimatize: after moving the balance from a cold place to a warmer room, leave it unplugged at room temperature for about 2 hours so no moisture condenses inside.
4. Assemble the weighing chamber in this order: shield plate, shield disk, pan support, weighing pan.
5. Level it: turn the two front leveling feet until the air bubble sits in the center of the level indicator. Level again every time the balance is moved.
6. Power it: push the US plug adapter into the AC adapter until it clicks, connect the angle plug to the socket on the back, then plug into the wall. Press the On/Off key; the balance runs a self-test and tares itself.
7. Warm up for 30 minutes, then calibrate; the steps are in the Entris 224-1S calibration section below.

The lug on the back takes an anti-theft cable or lock. Connect or disconnect a printer or PC only with the balance unplugged.

Keys and display

Key	What it does
On/Off	Switches the balance on or off; inside the menu it exits without saving
Tare	Sets the display to zero with a container on the pan
Calibration (CAL)	Starts the calibration and adjustment routine
Print	Sends the reading to the RS-232 port (printer or PC)
Select (menu)	Picks an application; hold it to open the operating menu; scrolls through menu items
Enter (start)	Starts the application program; in the menu it goes one level down or confirms a setting
CF (clear function)	Quits an application, cancels calibration, goes one menu level up; hold it to save and exit the menu

Basic weighing and taring

1. Press On/Off. After the self-test the display reads 0.0000 g.
2. Place an empty container on the pan and press Tare.
3. Add the sample and close the draft shield panel, then wait for the stability symbol before you read or print.
4. Press Print to send the weight to a printer or PC.

Entris 224-1S calibration with a 200 g E2 weight

The 224-1S has no internal weight, so it calibrates with an external 200 g weight of accuracy class E2 or better (Sartorius part YCW522-AC-02). Models with an i in the name, such as the Entris 224i-1S, carry a motorized internal weight; for the trade-offs see internal vs external calibration balances. Check that the calibration key is set to external calibration: Setup, Bal.Scal., Cal./adj., Cal.Ext. (menu code 1.1.9.1). The calibration weight unit is grams by default (code 1.1.11).

1. Warm up for 30 minutes, clear the pan and close the draft shield.
2. Press Tare so the display shows zero.
3. Press the calibration key. The display shows Cal.Ext., stores the zero point and then flashes the weight it wants (200 g).
4. Place the 200 g weight in the center of the pan and close the panel. A minus sign means the weight is too low, a plus sign means it is too high; the display stops flashing once the weight is within the limit.
5. When Cal.end appears, the balance shows the calibration weight. Remove it; the display returns to zero.

The routine only runs with an empty, tared, stable pan, and the weight on the pan must be within 2 percent of the nominal 200 g. Otherwise the balance shows err 02. After calibration any running application is cleared, so restart counting or percent weighing. Our calibration weight classes guide explains E2 and F1, our calibration weights guide covers handling, and we stock calibration weights. Then check a light load and one near 200 g; our how often should a scale be calibrated guide helps set a schedule.

The operating menu and the codes that matter

Hold the Select key in weighing mode until Applic. appears. Select scrolls, Enter goes down a level and confirms (a small o marks the active setting), CF goes back up, and holding CF saves and exits. Press On/Off to leave without saving. Under Languag. you can switch the menu to codes instead of text (code 5.8).

Menu code	Setting	Factory setting and choices
1.1.1	Ambient conditions (filter)	Stable; also Very stable, Unstable, Very unstable
1.1.2	Application filter	Final readout; Filling for dosing powder or liquid
1.1.3	Stability range	2 digits; 1/4 to 8 digits
1.1.6	Auto zero	On
1.1.7	Basic weight unit	Grams; see the unit list
1.1.9	Function of the calibration key	Cal.Ext. for the 224-1S
1.5.1 to 1.5.6	RS-232 interface	1200 baud, odd parity, 1 stop bit, hardware handshake, 7 data bits, printer mode; SBI (ASCII) for a PC
1.6.1	Print mode	Manual after stability; automatic modes available
1.8.3	Keypad	Free; can be locked
1.8.6	Display backlight	On
1.9.1	Reset menu	Restores factory settings
4.1 to 4.3	Information	Software version, serial number, model

Applications: counting, percent, units and density

• Counting (Z): pick a reference quantity from 1 to 100 pieces with the Select key (tap for steps of 1, hold for steps of 10), add that many parts and press Enter. Automatic reference updating (code 2.3.2) refines the piece weight as you add more.
• Percent weighing: shows the load as a percentage of a reference, with 0 to 3 decimal places (code 2.4.1).
• Unit toggling: up to 4 application units besides the basic unit, from a list of 23 that includes milligrams, carats, ounces, troy ounces, pennyweights and grains. Some units depend on the country version.
• Animal weighing for moving samples, and calculation with a factor.
• Density determination of solids, using the YDK03 density kit (not included) made for the Entris 224, 124 and 64.
• Input: an ID of up to 7 characters, such as an inventory number, for printouts.

Connecting the Entris 224-1S to a printer or PC

The 224-1S has a 25-pin RS-232 port. Sartorius lists a 25-pin to USB-A cable (YCC01-USBM2) and 25-pin to 9-pin cables (7357314, 6965619), all not included. For a PC, set the data output to SBI (ASCII) at code 1.5.6 and match the baud rate, parity and handshake to your software. Sartorius publishes the interface commands in its “Data Interface Descriptions for Entris Models” file. Our scale to computer guide covers USB and RS-232 adapters.

Entris 224-1S error codes

Display	Cause	Fix
No segments	No AC power	Check the outlet and the adapter plug
high	Load over 220 g	Unload the balance
low or Err 54	Something touches the pan	Free the pan; check the shield disk
App.err.	Load too light to store a reference	Add more sample
dis.err.	Data output does not match the output format	Change the interface settings
prt.err.	Printer port blocked	Reset the menu to factory settings, or call us
err 02	Calibration conditions not met	Calibrate only from zero with an empty pan
err 10	Tare key blocked while an application holds a tare	Clear the tare memory with CF
err 11	Tare memory not allowed	Press Tare
Reading keeps changing	Draft, vibration or debris under the pan	Close the panels, raise the filter level, clean around the pan
Reading clearly wrong	Not calibrated or not tared	Tare, then calibrate with the 200 g weight

For codes on other brands see scale error codes explained.

Cleaning and care

• Unplug the AC adapter and any interface cable first, and keep liquid out of the housing.
• Wipe the balance with a cloth lightly moistened with soap solution, then dry it with a soft cloth.
• The coated plastic top and bottom of the housing take acetone; keep acetone and strong cleaners off the keypad foil, the power and data ports and other plastic parts.
• To clean the pan, reach under the shield disk and lift it out together with the pan so the weighing system is not stressed.
• Clean the stainless pan separately with a stainless-safe household cleaner, rinse it and let it dry.

Replacing or adding an Entris 224-1S: the Entris II models

Sartorius’s current Essential line is Entris II, and its BCE224 models keep the same 220 g x 0.1 mg range. If you are adding a second balance or planning a replacement, here is how the figures from the two Sartorius manuals compare. Sartorius’s own Entris II page and our listings show current details.

Item	Entris 224-1S	BCE224-1S	BCE224I-1S	BCE224-1NUS
Capacity x readability	220 g x 0.1 mg	220 g x 0.1 mg	220 g x 0.1 mg	220 g x 0.1 mg
Repeatability	<±0.1 mg	0.1 mg near max.	0.1 mg near max.	0.1 mg near max.
Linearity limit	<±0.2 mg	±0.2 mg	±0.2 mg	±0.2 mg
Stabilization	2.5 s	≤1.5 s	≤1.5 s	≤1.5 s
Sensitivity drift	3 ppm/K	1.5 ppm/K	1.5 ppm/K	1.5 ppm/K
Calibration	External, 200 g E2	External, 200 g E2	Internal (isoCAL) plus external	External, 200 g E2
Data ports	25-pin RS-232	USB-C and 9-pin RS-232	USB-C and 9-pin RS-232	USB-C and 9-pin RS-232
NTEP	–	–	–	Class I, CC 22-017A1

Pick the Entris 224-1S for 0.1 mg lab weighing with the classic Entris keypad your team already knows. The BCE224-1S adds faster settling and USB-C, the BCE224I-1S adds automatic isoCAL adjustment, and the BCE224-1NUS is the NTEP model. Our Entris II Essential vs Advanced guide explains the BCE and BCA lines, the Entris II manual guide covers their setup, and the Sartorius balance price guide compares cost. Not sure you need 0.1 mg? See analytical vs precision balances.

Selling by weight: NTEP and the Entris 224-1S

The 224-1S is a laboratory model. For weighing that sets a price, such as selling a product by weight, use an NTEP-approved balance: the Sartorius BCE224-1NUS is NTEP accuracy Class I on Certificate of Conformance 22-017A1 (BCE Series), listed as Active on NCWM’s certificate search on November 2, 2026, with d = 0.1 mg and e = 1 mg. Our what is NTEP guide explains the classes.

Texas note: TDA does not require an NTEP certificate for every device, but the scale must meet NIST Handbook 44 and suit its use; some scales do need one, so we recommend NTEP models and can check yours. See TDA’s scales used in trade guidance (PDF) and our TDA scale certification guide, or call us or TDA to confirm your use.

Who uses the Entris 224-1S

• Research and QC labs: weighing standards, reagents and samples to 0.1 mg.
• Pharmacies and compounding rooms: weighing small amounts of active ingredients for records.
• Schools and teaching labs: analytical weighing with simple keys and a draft shield.
• Plastics, chemicals and coatings: sample prep, filler and additive checks, and density of solids with the YDK03 kit.

Setup tips from our technicians

• Our TDA-registered technicians recalibrate after every move, right after re-leveling, to hold 0.1 mg accuracy.
• Give a balance that came in from a cold delivery van the full 2 hours unplugged, then the 30-minute warm-up.
• Set the ambient filter to Unstable near a fume hood or vent before you blame the weigh cell.
• Use the same side door every time and let the reading settle with the panels closed.
• Handle the 200 g E2 weight with tweezers or gloves and keep it in its case.

Common mistakes we see

• Calibrating with a 100 g or F1 weight; the 224-1S calls for 200 g, class E2 or better.
• Starting calibration with a container still tared on the pan, which brings up err 02.
• Weighing before the 30-minute warm-up is over.
• Lifting the pan by itself instead of together with the shield disk.
• Cleaning the keypad with acetone.

Browse all Sartorius precision balances.

Calibration, repair and rentals from MNM Scales

• Book calibration: the Entris 224-1S is in our up-to-2.2 kg tier: in-house calibration with a certificate is $95 and NIST calibration with a NIST-traceable certificate is $395. See our balance calibration service in Houston, all tiers on the scale calibration service page, and NIST vs in-house certificates.
• Mail-in calibration: pack the balance in its original box and foam, with the draft shield panels secured, and ship it with the mail-in calibration service.
• Cypress pickup by appointment: drop off or pick up at our Cypress, TX shop (21249 FM 529 Rd, Cypress, TX 77433).
• On-site service: on-site calibration is $295 plus $2 per mile, round trip, once per visit, plus the calibration fee for each balance. Our TDA-registered technicians calibrate analytical balances in labs, QC rooms and pharmacies across the Houston area.
• Repair: display, keypad, adapter and weigh cell problems go to our scale repair bench.
• Rentals: we rent all types of scales; ask about a scale rental while yours is in for service.

Frequently asked questions

Where can I download the Sartorius Entris 224-1S manual?

Sartorius hosts the Entris operating instructions, WEN6001, which cover the Entris 224-1S, as a PDF on its document hub. This guide collects the 224-1S numbers from it.

How do I calibrate the Entris 224-1S?

Warm it up for 30 minutes, empty the pan and press Tare. Press the calibration key; at Cal.Ext. the balance stores zero and flashes 200 g. Place the 200 g weight, wait for Cal.end, then remove the weight.

What calibration weight does the Entris 224-1S need?

A 200 g weight of accuracy class E2 or better. Sartorius lists it as YCW522-AC-02. It is not included with the balance.

What does err 02 mean on a Sartorius Entris balance?

The calibration conditions were not met: the pan was not empty or tared, the reading was not stable, or the weight was more than 2 percent off the nominal value. Clear the pan, tare and start again.

How do I open the menu on the Entris 224-1S?

Hold the Select key in weighing mode until Applic. appears. Select scrolls, Enter confirms, CF goes back, and holding CF saves and exits.

How long does the Entris 224-1S need to warm up?

30 minutes after power-on. If it was moved from a cold place, leave it unplugged at room temperature for about 2 hours first.

Can the Entris 224-1S connect to a computer?

Yes, through its 25-pin RS-232 port with a Sartorius 25-pin to USB-A or 25-pin to 9-pin cable (not included). Set the data output to SBI (ASCII) for a PC.

What is the Entris II version of the 224-1S?

Sartorius’s current Essential line is Entris II. Its BCE224-1S has the same 220 g x 0.1 mg range with USB-C, the BCE224I-1S adds isoCAL, and the BCE224-1NUS is NTEP Class I.