Measurement of greater distances with measuring magnifiers is possible only to a limited extent due to the length of the scales. PEAK glass measuring rods are the optimum supplement for quick and simple determination of lengths and distances. The four lengths of 300 mm, 500 mm, 700 mm and 1.000 mm are supplied with two achromatic, focusable, 10 x reading magnifiers (see measuring magnifier 1983). The magnifiers on these measuring rods have a field of view of 20 mm. The acrylic mounts for the magnifiers have leaf springs integrated into the sides to prevent them from slipping. Separate silk lined boxes are included for the glass measuring rod and the two magnifiers. The graduations are 01 mm The graduations with a width of 0.02 mm are marked in five heights (in Y) on the measuring rod. Graduation 0.1 mm = 1.0 mm, Graduation 0.5 mm = 1.4 mm, Graduation 1.0 mm = 1.8 mm, Graduation 5 mm = 2.4 mm and Graduation 10 mm = 3.0 mm.

When measuring lengths and distances it is necessary to ensure that the scale is parallel to the object to be measured, to prevent measuring errors. A calibration certificate is not included with 1972-S glass measuring rods, produced in compliance with international standards.

If desired the rods with measuring lengths of 300 and 500 mm can be supplied with a calibration certificate for the measuring magnifier in compliance with VDI/VDE/DGQ 2618 Sheet 27 Ü at additional cost. This increases the delivery time by approx. 5-6 days. To make on offer for the calibration certificate we require information on the number of measuring points/distances required in the calibration certificate. Our subsupplier, who makes up these reports, is certified in compliance with EN ISO 17025 and EN ISO 9001:2000.

Specifications for 1972-S series glass measuring rods
•	Measuring scale Increments = 0.1 mm labelling 0 .10 .20 ... (mm)
•	The graduations and numbers on the glass rods are high resolution and scratch resistant. The graduations have a thickness of 0.020 mm
•	Accuracy of graduation ± (0.003 mm + 3L / 1,000,000) (dimensions based on 20°C)
•	Thermal coefficient of expansion: 9 x 10-6 / 1K
•	Refraction index = 1.5195
•	Material = float glass (selected)
•	Scaling not centred / centred on glass element! (multiple use)
•	Length of glass element = see below
•	Width of glass element = 49 mm
•	Thickness of glass element = 9.8 mm
•	Available in lengths of (measuring range on double scale):
	300 mm /  12” = overall length	360 mm (± 1mm)
	500 mm /  20” = overall length	560 mm (± 1mm)
	700 mm /  32” = overall length	780 mm (± 1mm)
	1,000 mm /  40” = overall length	1,060 mm (± 1mm)