• Durometer for paper rolls

Durometer for paper rolls

  • ParoTester2


The Parotester2 can quickly and precisely diagnose roll imperfections, hardness inconsistencies and uneven winding, preventing problems for printing and converting operations. Portable and lightweight, the Parotester2 is perfect for roll hardness testing in the warehouse or on the production floor, providing an immediate visual assessment of the hardness profile.

Field-proven technology compares impact and rebound speeds, automatically calculating a hardness value (LU).

Taking Leeb readings at 15 cm (6") intervals or closer across the surface of the roll will aid in detecting irregularities in roll winding quality.

Compliant with TAPPI T 834 om-07 testing standards, this device is especially useful in the paper industry where a lower impact energy is required. With this low impact energy, the Parotester2 is also ideal for testing foils, films and other plastic sheet materials.


Benefits to the customer
  • Large LCD display provides an easy-to-read visual assessment of the hardness values.
  • The high sensitivity (1-LU readability) diagnoses minute differences in roll hardness.
  • This unit can store approximately 5,000 single measurements which can then be uploaded to your computer or sent directly to your printer.
  • Individual settings can be stored for specific user requirements.
  • Using the optional accessory barcode reader, roll identification numbers can be quickly captured from rolls and uploaded to the Parotester2.



Technical Information
Parotester2 and probe
Testing method Leeb rebound
Available probe Type U
Contact force 120 N
Spherical test calotte Stainless steel 50 mm (2") tip diameter (tip hardness 60 HRC)
Max. material penetration 4.0 mm (0.15")
Resolution 1 LU; 1 R
Accuracy ± 6 LU (1 % at 600 LU)
Parotester2 display unit
Dimensions 175 x 180 x 80 mm (6.9 x 7.1 x 3.15 in.)
Weight 750 g (1.65 lb) (including batteries)
Material Shock resistant ABS plastic
Display Large LCD
Internal data storage ~ 5,000 values
Communication RS 232C
PC application Parolink 3 software (not included order separately); alternatively use HyperTerminal
Battery type Standard size "AA" cells (LR6) for about 50 h operation at 20 °C (68 °F); alternatively
use optional AC adapter
Operating temperature 0 to + 50 °C (32 to 122 °F)



Ordering Information
Unit Part Number 36004400
Complete Kit to start testing includes:
  • Display unit with carrying case and RS 232C interface
  • Type U Impact Device with1.5 m BNC cable
  • 6 batteries 1.5V, type LR 6
  • Cleaning Brush
  • Carrying Case
  • Instruction manual



Optional Accessories
36004503 Test block for Parotester2
36004550 External bar code reader
36004580 Parolink 3 software with cable



Standards Applied
TAPPI T 834 om-07 (2007)