OHAUS i-D33P75SD Bench Scale User Guide

: June 11, 2024
: Ohaus

Table of Contents

INTRODUCTION
INSTALLATION
OPERATION
CALIBRATION MENU
MAINTENANCE
TECHNICAL DATA
Documents / Resources
- Read User Manual Online (PDF format)
- Download This Manual (PDF format)

i-D33P75SD Bench Scale
Quick Start Guide

INTRODUCTION

This quick start guide contains the installation, operation and maintenance instructions for the i-D33P75SD bench scale. Please read it completely before installation and operation.
1.1. Safety Precautions
Definition of Signal Warnings and Symbols
WARNING
For a hazardous situation with medium risk, possibly resulting in severe injuries or death if not avoided.
CAUTION
For a hazardous situation with low risk, resulting in damage to the device or the property or in loss of data, or minor or medium injuries if not avoided.
ATTENTION
For important information about the product. May lead to equipment damage if not avoided.
NOTE
For useful information about the product.
Warning Symbols

****| |
---|---|---
General hazard| Explosion hazard| Electrical shock hazard

Safety Precautions
CAUTION: Read all safety warnings before installing, making connections, or servicing this equipment. Failure to comply with these warnings could result in personal injury and/or property damage. Retain all instructions for future reference.

Before connecting power, verify that the equipment’s input voltage range and plug type are compatible with the local AC mains power supply.
Do not position the equipment such that it is difficult to reach the power connection.
Only connect the power cord to a compatible grounded electrical outlet.
Only use a power cord with a rating that exceeds the specifications on the equipment label.
Make sure that the power cord does not pose a potential obstacle or tripping hazard.
Operate the equipment only under ambient conditions specified in these instructions.
Do not operate the equipment in hazardous or unstable environments.
Do not allow liquids to enter the equipment.
Use only approved accessories and peripherals.
Disconnect the equipment from the power supply when cleaning.
Service should only be performed by authorized personnel.

WARNING: Never work in an environment subject to explosion hazards!
The housing of the instrument is not gas tight. (Explosion hazard due to spark formation, corrosion caused by the ingress of gases).
WARNING: Electrical shock hazards exist within the housing. The housing should only be opened by authorized and qualified personnel. Remove all power connections to the unit before opening.

INSTALLATION

2.1. External Connections
RS232 Connection
Connect the optional RS232 cable to the RS232 connector on the rear housing of the i-DT33P indicator. Please refer to table 2-1 for the definition of each pin if needed.

RS232 Connector
Figure 2 i-DT33P RS232 Connector

Table 2-1 RS232 Pins

Pin	Connection
1	N/C
2	TXD
3	RXD
4	N/C
5	GND
6	N/C
7	N/C
8	N/C
9	N/C

Rechargeable Battery Power (Option)
Allow the battery to charge for 12 hours before using the scale on battery power.
The instrument can be operated during charging, and the battery is protected against overcharging. For maximum operating time, the battery should be charged only at room temperature.

OPERATION

3.1. Overview of Display and Controls

Figure 3 i-DT33P Control Panel

Button| | | |
---|---|---|---|---
Primary Function
(Short Press)| On/Zero
If the terminal is off, press to power on;If the terminal is on, press to set the zero point.| Print
Sends the current value to the RS232 port.| Function
Initiates an application mode.| Tare
Performs a tare operation.
Secondary Function
(Long Press)| Off
If the terminal is on, press to power off.| Units
Changes the weighing unit.| Mode
Changes the application mode.
The i-D33P75SD scale should be
used in “Weigh” mode for
materials testing.| Menu
Enters the user menu.
Shows a tare value in application modes.
Menu Function (Short Press)| Yes
Accepts the current setting on the display or selects a submenu or menu item.| No
Advances to the next menu or
menu item.
Rejects the current setting on the display and advances to the next available one.| Back
Moves back to the previous menu item.| Exit
Exits the user menu.
Aborts a calibration in progress.
Exits when displaying totalization result or under and
over value in check mode.

Notes:

Short Press: press less than 1 second.
Long Press: press and hold for more than 3 seconds.

Enter the calibration menu C.A.L to perform calibrations.
4.1. Initial Calibration
When the scale is operated for the first time, a zero and span calibration are recommended to ensure accurate weighing results.
Table 4-1 Suggested Span Calibration Mass (Sold Separately)

Max Capacity (kg)	Mass (kg)	Max Capacity (lb)	Mass (lb)
75 kg	75 kg	150 lb	150 lb

Note: Calibration unit used must match the calibration unit selected in menu option Capacity Unit.
4.2. Zero Calibration [ ]
Zero calibration uses one calibration point. The zero calibration point is established with no weight on the scale.
Use this calibration method to adjust for a different static load without affecting the span or linearity calibration.
Calibration procedure (when the calibration unit is kg)

Long press the Menu button until you see
Release the button and wait for the display to show Press the Yes button.
The display shows . Press the Yes button.
kg and the calibration unit are flashing on the display. With no weight on the pan, press the Yes button to establish the zero point.
The display shows , and then when the Zero calibration is finished.
Note: If zero calibration has failed or if after 40 seconds the calibration is still not successful, is displayed for 3 seconds and the previous calibration data will be restored.
Then the display shows . Press the Exit button to exit.

4.3. Span Calibration [ ]
Span calibration uses one calibration point. It is established with a calibration mass placed on the scale.
Note: Span calibration should be performed after zero calibration.
Calibration procedure (when the calibration unit is kg)

Long press the Menu button until you see
Release the button and wait for the display to show . Press the Yes button.
Short press the No button to navigate until you see SPAN. Press the Yes button.
The calibration point and the unit are flashing on the display based on the scale capacity and unit set in the menu. (e.g. kg) If you do not need to change the calibration point, skip to step 6.
To change the calibration point:
a) Short press the No button several times until the desired number appears.
Note: press the Back button can decrease the digit.
b) Short press the Yes button to accept the number and move on to the next digit.
c) Repeat the process until all the digits are correct.
d) Press the Yes button to accept calibration point. It is flashing on the display.
Place a calibration mass of the specified weight on the pan and press the Yes button.
The display shows , and then when the calibration is finished.
Then the display shows . Press the Exit button to exit.

Note:

If calibration has failed, is displayed for 3 seconds and the previous calibration data is restored.
If after waiting for 40 seconds the calibration is still not successful, is displayed for 3 seconds and the previous calibration data is restored.

4.4. Linearity Calibration [ ]
Linearity calibration uses 3 calibration points. The full calibration point is established with a weight on the pan. The mid calibration point is established with a weight equal to half of the full calibration weight on the pan. The zero calibration point is established with no weight on the pan. The full calibration and mid calibration points can be altered by users during the calibration procedure to reflect actual weights available for calibration.
Calibration procedure (when the calibration unit is kg)

Long press the Menu button until you see .
Release the button and wait for the display to show . Press the Yes button.
Short press the No button several times to navigate until you see . Press the Yes button.
kg and the calibration unit are flashing on the display. With no weight on the pan, press the Yes button to establish the zero point. The display shows .
Then the first calibration point and the unit are flashing on the display based on the scale capacity and unit you set in the setup menu. (For example, kg). If you do not need to change the calibration point, skip to step 7.
To change the calibration point:
a) Short press the No button several times until the desired number appears.
Note: press the Back button can decrease the digit.
b) Short press the Yes button to accept the number and move on to the next digit.
c) Repeat the process until all the digits are correct.
d) Press the Yes button to accept calibration point. It is flashing on the display.
Place a calibration mass of the specified weight on the pan and press the Yes button. The display shows .
The second calibration point and the unit are flashing on the display based on the capacity and unit you set in the setup menu. (For example, kg)
Note:
• If calibration has failed, is displayed for 3 seconds and the previous calibration data is restored.
• If after waiting for 40 seconds the calibration is still not successful, is displayed for 3 seconds and the previous calibration data is restored.
Repeat step 6 and 7.
The display shows , and then when the Linearity calibration is finished.
After that the display shows GEO. Press the Exit button to exit.

4.5. Calibration Test [ ]
A calibration test printout can be generated if a printer is attached.
For more information refer to section 4.2.6 in the Defender 3000 Indicators (i-DT33) manual.
End Cal [ ]
When End is displayed, press the Yes button to exit this menu and advance to the next sub-menu, or press the No button to advance to the first menu item in the this sub-menu.

MAINTENANCE

CAUTION: DISCONNECT THE UNIT FROM THE POWER SUPPLY BEFORE CLEANING.
5.1. Cleaning
The housing may be cleaned with a cloth dampened with a mild detergent if necessary.
WARNING: Electric Shock Hazard. Disconnect the equipment from the power supply before cleaning. Make sure that no liquid enters the interior of the instrument.
Attention: Do not use solvents, harsh chemicals, ammonia or abrasive cleaning agents.
5.2. Troubleshooting
For technical issues contact an Authorized Ohaus Service Agent.

TECHNICAL DATA

6.1. Specifications
Equipment Ratings:

Altitude:	2,000m
Operating temperature:	-10°C to 40°C
Humidity:	Maximum relative humidity 80% for temperatures up to 31 °C

decreasing linearly to 50% relative humidity at 40°C.
Electrical supply:| 100 – 240V～, 0.5A, 50/60Hz
Voltage fluctuations:| Mains supply voltage fluctuations up to ±10% of the nominal voltage.
Overvoltage category (Installation category):| II
Pollution degree:| 2
Model| i-D33P75SD
---|---
Capacity x Readability| 75 kg x 0.02 kg
150 lb x 0.05 lb
Weighing units| Kilogram, Gram, Pound, Ounce, Pound: Ounce
Modes| Weighing, Counting, Check, Totalization
Stabilization time| Within 2 seconds
Zero range| To capacity by subtraction
Maximum Overload| 150%
Battery Operating Time| Dry cell battery: up to 150 hours continuous use with backlight off
Rechargeable battery (optional): up to 75 hours continuous use with backlight off
Operating Temperature Range| -10°C to 40°C/14°F to 104°F
Indicator to Base Cable Length| 1.8m / 72″ (uncoiled)
Display| 45 mm / 1.8 in digit height LCD display with 4-color backlight
Power cord length| 1.9m / 75″ (fully extended)
Scale Base Size| 316mm L x 280mm W x 45mm H /12.4″ L x 11″ W x 1.77″ H
Indicator Size| 252 x 176 x 80 mm / 9.9 x 6.9 x 3.1 in
Power| 100-240 VAC / 50-60 Hz internal power supply
Net Weight| 4.5kg / 9.91b
Shipping Weight| 9.2kg / 20.31b

Figure 6 Scale Base Overall Dimension

INSTRUCTION MANUAL
For more detailed information about the indicator, please refer to the product instruction manual. The instruction manual can be obtained either by scanning the QR code or by going to the product page and from there download it.

QR Code:

https://dmx.ohaus.com/WorkArea/DownloadAsset.aspx?id=4295006797

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