They are complemented by a comprehensive range of comparators for pneumatic (model 550C), oil (model 580C) or water (model 580CW) operation which provide a cost effective and straight forward solution to most calibration applications.

Those comparators can easily be upgraded into a dead-weight tester by replacing the d.u.t. mounting stand by a piston cylinder / weight set arrangement.

• Pressure ranges to 140 MPa (20,300 psi)
• Accuracy to 0.2%
• 150, 200 & 250 mm dial sizes
• Comparator stands available with precision pressure generation