OPERATION MANUAL Precision torque sensor model 8625 Valid from: burster praezisionsmesstechnik gmbh & co kg All rights reserved Manufacturer: burster praezisionsmesstechnik gmbh & co kg Talstr. 1 - 5 P.O. Box 1432 76593 Gernsbach 76593 Gernsbach Germany Germany Tel.: +49-7224-645-0 Fax.: +49-7224-645-88 Email: [email protected] www.burster.com 3017-BA8625EN-5170-041524

Exclusion of warranty liability for operating manuals All information in the present documentation was prepared and compiled with great care and reproduced subject to effective control measures. No warranty is provided for freedom from errors. We reserve the right to make technical changes. The present information as well as the corresponding technical data can change without notice. Reproduction of any part of this documentation or its processing or revision using electronic systems is prohibited without the manufacturer‘s prior written approval. Components, devices and measured value sensors...

Safety instructions In this manual the following symbols warn about risks. Symbols in this manual Signal words The following signal words are used in the operation manual according to the specified hazard classification. DANGER DANGER indicates a hazard with a high level of risk which, if not avoided, will result in death or serious injury. WARNING WARNING indicates a hazard with a medium level of risk which, if not avoided, could result in death or serious injury. CAUTION CAUTION indicates a hazard with a low level or risk which, if not avoided, could result in minor or moderate injury. NOTICE...

General safety instructions The torque sensor model 8625 uses state-of-the-art engineering and is safe to operate. However, if the torque sensor model 8625 is not used or operated as intended, it may present a hazard. DANGER Danger of electric shock! The following instructions must be followed to prevent electric shock and injuries: • In order to achieve high measuring characteristic value, the torque sensor model 8625 is not designed with the usual safety factors (2 … 20) for machine designs. For applicable overload factors, see the technical data (data sheet). • Observe accident prevention...

IMPORTANT: Read the operation manual carefully before using the equipment, and keep for future reference. The torque sensor model 8625 measures static and dynamic torques. This measured quantity is suitable for open-loop and closed-loop control functions. The respective upper range value is shown on the type plate. Both the low mass of the torque sensor model 8625 and its high torsional rigidity are an advantage when measuring dynamic torques. However, you need to pay attention to the torsion spring constant and the sensor’s cut-off frequency with such measurements. You can find both of these...

Download the test certificates You have the option to download the test certificate for your torque sensor model 8625 online. To do this, you can either use your direct download link or download it directly from our website (www.burster.com) by entering the serial number. Environmental conditions • Avoid radiant heat or cooling from one side. • Protect the torque sensor model 8625 from moisture. • The torque sensor model 8625 is not resistant to the effects of chemicals. Do not use the torque sensor model 8625 in a corrosive environment. • Keep the bearings and connectors free of dust, dirt and...

Scope of delivery • Torque sensor model 8625 • Mating connector • Operation manual • Data sheet • Optional: USB cable • Optional: mounted flange or bracket CAUTION Never connect up the torque sensor model 8625 if it shows signs of damage incurred in transit. Only ever use the torque sensor model 8625 under the conditions specified in this operation manual. Inspect the torque sensor model 8625 carefully for damage. If you suspect that the torque sensor model 8625 has been damaged during shipping, notify the delivery company within 72 hours. The packaging should be retained for examination by a...

Conversions and modifications If you open or dismantle the torque sensor model 8625 during the warranty period, this will void the warranty immediately. The torque sensor model 8625 does not contain any parts that are intended to be serviced by the user. Only the manufacturer's own qualified personnel are permitted to open the torque sensor model 8625. It is forbidden to make any modification to the torque sensor model 8625 without our written permission. We cannot accept liability in the event of such action. Our recommendations • Check cables and connectors annually. • It is up to you as the...

Device concept and general information The figures given for the full dimensions, mass and power depend on the version of the torque sensor model 8625. Please refer to the data sheet for specific figures. Test side The test side is that end of the shaft at which you apply the torque being measured to the torque sensor model 8625. This end normally has the smallest moment of inertia. You will see these markings “TEST SIDE” on the measurement end of the torque sensor model 8625: Diagram 1: Test side of torque sensor model 8625 Drive side The drive end is the opposite end to the measurement end....

Mechanical design The torque sensor model 8625 does not contain any rotating parts. The shaft is joined directly to the housing at the attachment end. Strain gauges are mounted on the shaft, which acts as the torsion bar in the torque sensor model 8625. The torque is applied to the shaft end labelled "TEST SIDE". The housing provides protection for the sensitive electronic instrumentation and contains the cable/plug connection. The housing is also used as the means of attaching the torque sensor model 8625. Diagram 2: Basic design of the torque sensor model 8625 Electrical design DANGER Electric...

Torque sensor model 8625 with brigde output The torque sensor model 8625 with bridge output has a 7-pin circular connector. This connector is used to supply the sensor with its required rated excitation voltage and to output the measurement signal in mV/V. The supply voltage must be kept absolutely constant. Conventional power supplies cannot guarantee this consistency to an adequate degree. Use an instrumentation amplifier, indicator or process controller that can provide a stabilized supply voltage and processes the mV/V signal. Torque sensor model 8625-XXXX-VXX3X0 The 8625-XXXX-VXX3X0 torque...