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™ ModelPR124PR224PR223PR423PR523
ExCal ModelPR124/EPR224/EPR223/EPR423/EPR523/E
Approved Model*PR124MPR224MPR223MPR423MPR523M
Capacity (g)120220420520
Readability (g)0.00010.001
Verification Interval (e) (g) (Approved Models)0.0010.01
Class (Approved Models)III
Repeatability (STDEV) (g)0.00010.001
Linearity (g)0.00020.002
Stabilization Time (s)32
Sensitivity Temperature Drift (PPM/K)±3±8±3
Typical Minimum Weight USP (USP, K=2, U=0.10%)200 mg2 g
Optimized Minimum Weight (USP, U=0.10%, K=2) SRP≤0.41d**82 mg0.82 g
UnitsMilligram, Gram, Ounce, Carat, Pennyweight, Ounce Troy, Newton, grain
Units (Approved Models)Milligram, Gram, Carat
ApplicationsBasic Weighing, Parts Counting, Percent Weighing
Pan Size (Ø)90 mm120 mm
Tare RangeTo full range by subtraction
Power SupplyPower Input: 100 – 240V ~ 200mA 50 – 60Hz 12 – 18VA
Power Output:12 VDC 0.5A
Assembled Dimensions (W × D × H)201 × 317 × 303 mm
CommunicationRS232
Operating Temperature RangeOperating conditions for ordinary lab application: +10 to 30°C (operability guaranteed between +5 and 40°C)
Storage Temperature RangeHumidity: maximum relative humidity 80% for temperatures up to 30 °C, decreasing linearly to 50% relative humidity at 40 °C
Net Weight4.5 kg
Shipping Weight7 kg
Shipping Dimensions (W × D × H)507 × 387 × 531 mm
InCal™ ModelPR1602PR2202PR4202PR4201PR6201
ExCal ModelPR1602/EPR2202/EPR4202/EPR4201/EPR6201/E
Approved Model*PR1602MPR2202MPR4202MPR4201MPR6201M
Capacity (g)1600220042006200
Readability (g)0.010.1
Verification Interval (e) (g) (Approved Models)1
Class (Approved Models)II
Repeatability (STDEV) (g)0.010.1
Linearity (g)0.020.2
Stabilization Time (s)1
Sensitivity Temperature Drift (PPM/K)±6±3±10
Typical Minimum Weight USP (USP, K=2, U=0.10%)20 g200 g
Optimized Minimum Weight (USP, U=0.10%, K=2) SRP≤0.41d**8.2 g82 g
UnitsGram, Kilogram, Ounce, Pound, Carat, Pennyweight, Ounce Troy, Newton, grain
Units (Approved Models)Gram, Kilogram, Carat
ApplicationsBasic Weighing, Parts Counting, Percent Weighing
Pan Size (Ø)180 mm
Tare RangeTo full range by subtraction
Power SupplyPower Input: 100 – 240V ~ 200mA 50 – 60Hz 12 – 18VA
Power Output:12 VDC 0.5A
Assembled Dimensions (W × D × H)201 × 317 × 93 mm
CommunicationRS232
Operating Temperature RangeOperating conditions for ordinary lab application: +10 to 30°C (operability guaranteed between +5 and 40°C)
Storage Temperature RangeHumidity: maximum relative humidity 80% for temperatures up to 30 °C, decreasing linearly to 50% relative humidity at 40 °C
Net Weight3.5 kg
Shipping Weight5 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

Capacity

, , , , , ,

Pan/Platform Size (mm)

,

Readability

, ,

Readability (Certified)

, , ,

Internal Calibration

InCal™ – Semi Automatic, Not Applicable

Downloads

Ohaus PR Balance Datasheet