Ohaus PR Precision Balances

Ohaus PR Series Precision balances offer accuracy and repeatability in essential weighing applications in industrial, laboratory and education settings at an economical price. Featuring RS232 connectivity for easy communication, and a backlit display and a simple interface for uncomplicated operation, the PR is perfectly designed for your workplace.

Ohaus PR Precision Balances

Ohaus PR Precision balances offer accuracy and repeatability in essential weighing applications in industrial, laboratory and education settings at an economical price. Featuring RS232 connectivity for easy communication, a backlit display and a simple interface for uncomplicated operation, the PR is perfectly designed for your workplace.

Key Features

  • User-selectable environmental filters
  • Brightness settings, auto-tare, auto-dim
  • User-selectable span calibration points
  • Software lockout and reset menu
  • User-definable project and user IDs
  • Software overload/underload indicator
  • Stability indicator
  • Integrated weigh-below-hook
  • Calibration lock
  • Removable glass draft shield with sliding top door (PR223/423/523 Models only)
  • Security bracket

PR Precious balances are is equipped with 3 essential weighing modes, RS-232 connectivity for data transfer and storage, and internal calibration (in select models), making it ideal for routine weighing applications. With their small footprint, PR balances save desktop space while providing a large weighing surface. They are durably constructed and features a stainless steel pan to withstand day-to-day use in the workplace.

Optional Accessories

InCal™ Model PR124 PR224 PR223 PR423 PR523
ExCal Model PR124/E PR224/E PR223/E PR423/E PR523/E
Approved Model* PR124M PR224M PR223M PR423M PR523M
Capacity (g) 120 220 420 520
Readability (g) 0.0001 0.001
Verification Interval (e) (g) (Approved Models) 0.001 0.01
Class (Approved Models) I II
Repeatability (STDEV) (g) 0.0001 0.001
Linearity (g) 0.0002 0.002
Stabilization Time (s) 3 2
Sensitivity Temperature Drift (PPM/K) ±3 ±8 ±3
Typical Minimum Weight USP (USP, K=2, U=0.10%) 200 mg 2 g
Optimized Minimum Weight (USP, U=0.10%, K=2) SRP≤0.41d** 82 mg 0.82 g
Units Milligram, Gram, Ounce, Carat, Pennyweight, Ounce Troy, Newton, grain
Units (Approved Models) Milligram, Gram, Carat
Applications Basic Weighing, Parts Counting, Percent Weighing
Pan Size (Ø) 90 mm 120 mm
Tare Range To full range by subtraction
Power Supply Power Input: 100 – 240V ~ 200mA 50 – 60Hz 12 – 18VA
Power Output:12 VDC 0.5A
Assembled Dimensions (W × D × H) 201 × 317 × 303 mm
Communication RS232
Operating Temperature Range Operating conditions for ordinary lab application: +10 to 30°C (operability guaranteed between +5 and 40°C)
Storage Temperature Range Humidity: maximum relative humidity 80% for temperatures up to 30 °C, decreasing linearly to 50% relative humidity at 40 °C
Net Weight 4.5 kg
Shipping Weight 7 kg
Shipping Dimensions (W × D × H) 507 × 387 × 531 mm
InCal™ Model PR1602 PR2202 PR4202 PR4201 PR6201
ExCal Model PR1602/E PR2202/E PR4202/E PR4201/E PR6201/E
Approved Model* PR1602M PR2202M PR4202M PR4201M PR6201M
Capacity (g) 1600 2200 4200 6200
Readability (g) 0.01 0.1
Verification Interval (e) (g) (Approved Models) 1
Class (Approved Models) II
Repeatability (STDEV) (g) 0.01 0.1
Linearity (g) 0.02 0.2
Stabilization Time (s) 1
Sensitivity Temperature Drift (PPM/K) ±6 ±3 ±10
Typical Minimum Weight USP (USP, K=2, U=0.10%) 20 g 200 g
Optimized Minimum Weight (USP, U=0.10%, K=2) SRP≤0.41d** 8.2 g 82 g
Units Gram, Kilogram, Ounce, Pound, Carat, Pennyweight, Ounce Troy, Newton, grain
Units (Approved Models) Gram, Kilogram, Carat
Applications Basic Weighing, Parts Counting, Percent Weighing
Pan Size (Ø) 180 mm
Tare Range To full range by subtraction
Power Supply Power Input: 100 – 240V ~ 200mA 50 – 60Hz 12 – 18VA
Power Output:12 VDC 0.5A
Assembled Dimensions (W × D × H) 201 × 317 × 93 mm
Communication RS232
Operating Temperature Range Operating conditions for ordinary lab application: +10 to 30°C (operability guaranteed between +5 and 40°C)
Storage Temperature Range Humidity: maximum relative humidity 80% for temperatures up to 30 °C, decreasing linearly to 50% relative humidity at 40 °C
Net Weight 3.5 kg
Shipping Weight 5 kg
Shipping Dimensions (W × D × H) 550 × 385 × 291 mm

*Approved models are all internal calibration models.
**The value for SRP is the standard deviation for n replicate weighings (n≥10)

Additional information

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Internal Calibration

InCal™ – Semi Automatic, Not Applicable

Downloads

Ohaus PR Balance Datasheet