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EN-6 

 

Courier 3000 

3. OPERATION 

3.1  Turning On/Off the Scale 

To turn on the scale, you can short press the

 On/Zero

 button. The scale displays the software version and 

enters the weighing mode. 

 
To turn the scale off, you can long press the

 Off

 button until 

OFF

 is displayed. 

3.2  Setting the Display to Zero 

The value of the display can be set to zero in the following cases: 

1.  When the scale is turned on, it will perform an initial zero. 

2.  When the weight on the platform is less than or equal to 2% of the Capacity value, short press the 

ON/ZERO Off

 button to zero the instrument display. 

3.  When the weight on the platform is greater than 2% of the Capacity value, short press the 

ON/ZERO Off

 

button to set the tare weight, then the instrument display will show a reading of 0. 

If you want to set the value of the display by pressing the 

ON/ZERO Off

 button, please make sure that the 

scale is stable. 

3.3  Changing the Units of Measure 

To change the weighing unit, you can long press the 

Units/Hold

 button until the desired weighing unit appears 

on the display. 

3.4  Calibration 

3.4.1  Linear calibration 

The scale performs linearity calibration with 3 calibration points. The zero calibration point is established with 

no load on the platform. The mid calibration point and the full calibration point are established with loads on the 

platform. 

 

Calibration Procedures: 

1.  After powering on, long press the 

UNITS/Hold 

button and 

On/Zero

 button simultaneously until

 CAL

 

appears on the instrument display. 

2.  Release the 

UNITS/Hold

 button and 

On/Zero

 button at the same time. 

3.  Short press the 

On/Zero

 button and 

-C- 

will appear on the instrument display. The scale will perform a 

zero calibration at this time (Do not place any weight on the platform). 

 

When the zero calibration is completed, the display will show “C XXX kg" or "C XXX lb”, depending on the 

current unit. For different models, the readings displayed are as follows: 

C31M35R: 10 kg (20 lb) 

C31M75R: 25 kg (50 lb) 

C31M75L: 25 kg (50 lb) 

C31M200R: 100 kg (200 lb) 

C31M200L: 100 kg (200 lb) 

4.  Place the load on the platform. 

5.  Short press the 

On/Zero

 button and 

-C- 

will appear on the instrument display. The scale will perform a 

midpoint calibration at this time. 

 

When the midpoint calibration is completed, the display will show “C XXX kg” or “C XXX lb”, depending on 

the current unit. For different models, the readings displayed are as follows: 

C31M35R: 30 kg (60 lb) 

C31M75R: 75 kg (150 lb) 

C31M75L: 75 kg (150 lb) 

C31M200R: 200 kg (400 lb) 

C31M200L: 200 kg (400 lb) 

6.  Place the load on the platform. 

7.  Short press the 

On/Zero

 button and 

-C- 

will appear on the instrument display. The scale will perform a top 

range calibration at this time. 

NOTE:  

  When the calibration is completed, the display will return to weighing. 

  If the display shows CAL E and then exits the calibration mode, this indicates that calibration has 

failed. 

Summary of Contents for Courier 3000

Page 1: ...Courier 3000 Instruction Manual...

Page 2: ......

Page 3: ...REVISION HISTORY Date Version Description February 13 2023 A Initial release...

Page 4: ......

Page 5: ...3 2 Direct Wall Mounting 5 2 4 Leveling the Equipment 5 3 OPERATION 6 3 1 Turning On Off the Scale 6 3 2 Setting the Display to Zero 6 3 3 Changing the Units of Measure 6 3 4 Calibration 6 3 4 1 Line...

Page 6: ...at it is difficult to reach the power connection Make sure that the power cord does not pose a potential obstacle or tripping hazard Operate the equipment only under ambient conditions specified in th...

Page 7: ...strument display When the weight on the platform is greater than 2 of the Capacity value a short press will set the tare weight During the calibration short press this button to capture the zero and t...

Page 8: ...Figure 1 3 Display Item Description Item Description 1 Net weight symbol 5 Battery symbol 2 Negative symbol 6 Center of Zero symbol 3 Stable weight symbol 7 Kilogram symbol 4 Display Hold symbol 8 Pou...

Page 9: ...can supply power to the scale 1 Remove the terminal 2 Install the batteries in the battery compartment 2 3 2 Direct Wall Mounting The terminal may be mounted directly to a wall or table using two scr...

Page 10: ...loads on the platform Calibration Procedures 1 After powering on long press the UNITS Hold button and On Zero button simultaneously until CAL appears on the instrument display 2 Release the UNITS Hol...

Page 11: ...the display 3 Fill the container as required The net weight of the contents of the container will be shown on the display Once the platform is stable the stable weight symbol will appear on the displ...

Page 12: ...allowable limits 2 Weight is not stable 3 Load cell is damaged 1 Remove weights from the platform 2 Wait for platform to become stable check area around the scale and weight on scale for excessive vi...

Page 13: ...00 kg x 0 1 kg 400 lb x 0 2 lb Maximum Displayed Resolution 1 1 750 1 1 500 1 2 000 1 1 500 1 2 000 Weighing Units kg lb Application Mode Weighing Display Hold Operating Temperature Range 14 F to 104...

Page 14: ...EN 10 Courier 3000 5 2 Drawings and Dimensions Terminal Dimensions All Models Model Base Dimensions i C31MXXR i C31MXXL...

Page 15: ...ertified FCC Supplier Declaration of Conformity Unintentional Radiator per 47CFR Part B Trade Name OHAUS CORPORATION Model or Family identification i C31 Party issuing Supplier s Declaration of Confor...

Page 16: ...en damaged by accident or misuse exposed to radioactive or corrosive materials has foreign material penetrating to the inside of the product or as a result of service or modification by other than OHA...

Page 17: ...ffices worldwide Con oficinas en todo el mundo Avec des bureaux partoutdans le monde MitB rosweltweit Con uffici in tuttoilmondo www ohaus com 30809950 P N 30809950 A 2022 Ohaus Corporation all rights...

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