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Ohaus®  -  Ranger® 3000  -  R31P15  
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Ohaus® - R31P15 - Compact Bench Scale

The multipurpose Ranger 3000 has all of the capabilities to produce precise results rapidly for a variety of applications. With seven application modes, Ranger 3000 is the ideal scale to meet many industrial weighing needs. Portable and equipped with a rechargeable battery, this scale is beneficial in every corner of the factory and is equipped with functions and features that elevate the Ranger Count 3000 to a class of its own.

Largest Display in its Class Makes Ranger 3000 Ideal for Use in All Environments — Ranger 3000 has the largest display in its class and is equipped with checkweighing LED’s and backlit LCD displays which makes it functional in almost any working condition.

The Most User Friendly Scale on the Market — Easy setup leads into even easier use, ensuring that your valuable time is not wasted and you’re working as proficiently as possible.

Rapid Stabilization Provides Unmatched Throughput — View your results in just one second, and then see your efficiency, throughput and productivity soar!

Are you a scale reseller? Call us for resale pricing or send your inquiry to

Special Features:
Product Literature:
Ohaus - R31P15
Capacity 30 lb / 15 kg
Readability 0.001 lb / 0.5 g (0.01 lb / 5 g NTEP)
Pan Size 11.8 x 8.9 in.
Max. Displayed Resolution 1:30000
Construction ABS housing, stainless steel platform
Weighing Units kg, g, lb, oz, lb:oz
Application Modes Weighing, Percent Weighing, Parts Counting, Checkweighing, Checkcounting, Checkpercent, Accumulation, Dynamic Weighing/Display Hold
Display 1.5 inch / 40mm high LCD display with white backlight, 6-digit, 7-segment
Checkweighing Indicators 3 LED (yellow, green, red) with configurable operation and alert beeper
Keypad 5 mechanical keys
Zero Range 4% or 20% of full scale capacity
Tare Range Full capacity by subtraction
Stabilization Time 1 second
Auto-Zero Tracking Off, 0.5, 1 or 3 divisions
Safe Overload Capacity 150% of capacity
Power 100-240 VAC / 50-60 Hz internal universal power supply, internal rechargeable lead acid battery
Battery Life 210 hours continuous use with 12 hour recharge time
Calibration External, with user-selectable calibration weight
Interface Built-in RS232. optional 2nd RS232, USB, Ethernet
Operating Temperature Range 14°F to 104°F / -10°C to 40°C
Pan Size (W × L) 11.8 x 8.9 in / 300 × 225 mm
Scale Dimensions (W × L × H) 12.2 x 12.9 x 4.6 in / 311 × 327 × 117 mm
Shipping Dimensions (W × L × H) 15.6 x 17.6 x 7.7 in / 397 × 447 × 195 mm
Net Weight 9.2 lb / 4.2 kg
Shipping Weight 12 lb / 5.45 kg
Accessories for R31P15: To order Accessories please call
Item No Accessory Your Price
30037447 Ethernet Kit $179.10
30037448 Second RS232 Kit $179.10
30037449 USB Kit $179.10
30037451 In Use Cover $39.60
12120799 Paper for SF40A printer (2 rolls) $21.60
30064203 SF40A Impact Printer with cable $1,145.70
12120798 Ink Ribbon for SF40A Printer $75.00

Extended description:

Largest Display in its Class

Ohaus Ranger 3000 large display

The inviting display makes Ranger 3000 extremely simple to use. The LCD backlit display is 1.5", 57% larger than displays on other comparable products. Checkweighing LED’s provide additional confirmation and clarification of results. The bright display makes Ranger 3000 ideal for use in dim settings.

The Most User-Friendly Counting Scale on the Market

Simple menu navigation and dedicated keys make Ranger 3000 the most user-friendly industrial scale on the market. Complete with dedicated TARE key and Yes, No, Back, Exit keys, Ranger 3000 eliminates the need to master complex input commands and allows you to focus on the job at hand.

Rapid Stabilization

Ranger 3000 produces accurate results within one second. Rapid stabilization virtually eliminates your wait time and allows you to move at a pace determined by you and not your weighing equipment. Work efficiently and with confidence that your results are accurate. Maximize your throughput without sacrificing accuracy with the Ranger 3000.

Weigh Below Capability

Ohaus Ranger 3000 weigh below hook

The easy-to-use and install weigh below hook offers the functionality to perform specific gravity tests. It can also be used to weigh items that cannot be easily lifted on to the weighing pan.

Standard Connectivity with Flexible Options

Ohaus Ranger Count 3000 Connectivity Options

Standard RS232 with optional Ethernet, second RS232 and USB offers additional data transfer capabilities and allows connection to multiple peripherals.

Portability and Versatile Power Options

Ohaus Ranger 3000 Portable

Say goodbye to being restricted to working only near power outlets! With its convenient carrying handle and rechargeable lead acid battery that can provide power for more than 210 hours, Ranger 3000 can provide many hours of uninterrupted operation in the area of your workspace that most conveniently fits your needs. It can also be powered through the easy connect power cord that takes up minimal space and automatically adapts to different power line voltages and frequencies, eliminating disruptions in workflow due to power outages and shortages.


Ohaus Ranger 3000 approvals

The Ranger 3000 series of scales meets or exceeds the Class III accuracy requirements in accordance with NIST Handbook 44 and Canada’s Weights and Measures Regulations.

Application Modes

Outline Dimensions

Ohaus Ranger 3000 dimensions

Other Standard Features and Equipment

ABS housing, stainless steel platform, 210 hours of battery life, 3 LED (yellow, green, red) checkweighing lights with selectable operation and audible signal settings, integral weigh-below hook, transportation handle, sealed front panel, menu lockswitch, up front level indicator, adjustable leveling feet, selectable environmental and auto-print settings, stability indicator, overload and underload indicators, low battery indicator, auto shut-off, auto tare


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