Mounting instructions Installation of strain gages and telemetry system on customer diaphragm coupling TJ1-S8 (MPZ1501008) HBM: Business Document
Directory 1 Safety Instructions ........................................................................................................................................ 3 2 Markings used ............................................................................................................................................... 1 2.1 Symbols on the transducer.................................................................................................................. 1 2.
1 Safety Instructions FCC Compliance & Advisory Statement Important Any changes or modification not expressly approved in writing by by the party responsible for compliance could void the user’s authority to operate the device. Where specified additional components or accessories elsewhere defined to be used with the installation of the product, they must be used in order to ensure compliance with FCC regulations. This device complies with Part 15 of the FCC Rules.
Model: TJ1-S8 FCC ID: 2ADAT-TJ1S8 This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Fig. 1.2 Example of the label Appropriate use The torque transducer is used exclusively for torque, angle of rotation and power measurement tasks within the load limits stipulated in the specifications.
Use as a machine element The torque flange can be used as a machine element. When used in this manner, it must be noted that, to favor greater sensitivity, the transducer is not designed with the safety factors usual in mechanical engineering. Please refer here to the section “Loading capacity limits", and to the specifications.
applicable safety regulations (safety and accident prevention regulations), when using the transducers. Transducers can break, particularly in the case of overloading. The breakage of a transducer can also cause damage to property or injury to persons in the vicinity of the transducer.
1 2 Markings used 2.1 Symbols on the transducer Label example Label example with FCC ID number, Location of label on the stator unit.
2 2.2 The markings used in this document Important instructions for your safety are specifically identified. It is essential to follow these instructions in order to prevent accidents and damage the property. Symbol Meaning This marking warns of a potentially dangerous situation in which failure to comply with safety requirements can result in death or serious physical injury.
3 4 Structure and mode of operation The torque flange consists of two separate parts: the rotor and the stator. The rotor comprises the measuring body and the signal transmission elements. Strain gauges (SGs) are installed on the measuring body. The rotor electronics for transmitting the bridge excitation voltage and the measurement signal are located centrally in the flange.
4 Fig 4.2: Mechanical construction of stator with mounted shielding Important The use of the shielding plates is important to ensure compliance with FCC regulations. If the shielding plates has to be removed for any purpose (e.g. installation or maintenance), they must be replaced in the original position before the product is used.
5 5 Mechanical installation 5.1 Important precautions during installation NOTE A torque flange is a precision measurement element and therefore needs careful handling. Dropping or knocking the transducer may cause permanent damage. Make sure that the transducer cannot be overloaded, even while it is being mounted. • Handle the transducer with care.
6 Important Even if the unit is installed correctly, the zero point adjustment made at the factory can shift by up to approx. 0.5% of the sensitivity. If this value is exceeded, we advise you to check the mounting conditions. If the residual zero offset when the unit is removed is greater than 1% of the sensitivity, please send the transducer back to the Darmstadt factory for testing. 5.
7 5.4 Installation Please mount the rotor & stator simultaneous to its final position, so that you don’t need to separate the stator winding. The stator antenna should only be separated in case of an emergency. For dismounting instructions please contact the responsible HBM sales engineer. 5.5 Preparing for the rotor mounting (exemplary) CAUTION The rotor is very heavy (approx. 170kg)! Use a crane or other suitable lifting equipment to lift it out of its packaging and install it.
8 1. Lift the rotor out of the packaging, rotate horizontally by 180°, so that the bigger flange is pointing upwards (see exemplary Fig 5.1). Flange B Fig 5.2: Rotating the rotor 2. Place the rotor carefully onto a clean and stable table. 3. If the rotor is to be installed horizontally as shown in Fig 5.3, remove one mounting eye bolt. Both mounting eye bolts can initially remain in the flange for vertical installation. Fig 5.
9 4. Clean the plane surfaces of the transducer flange and the counter flange. For safe torque transfer, the faces must be clean and free from grease. Use a piece of cloth or paper soaked in solvent. Make sure that no solvent drips into the inside of the transducer and that the transmitter coils are not damaged during cleaning. 5. Fasten the lifting equipment to the mounting eye bolt(s). 6. Carefully lift up the rotor and move it to the mounting position (see Fig 5.1). 5.6 Mounting the rotor 1.
10 5.7 Installing the telemetry system The telemetry system consists of the following component parts: • • • • • Rotor antenna Stator antenna Stator Evaluation unit Connection cable Fig 5.
11 CAUTION • At all mounting- dismounting or repair operations, switch of the power supply of the system. • Connectors must not be under electric tension while it will be connected or disconnected 5.7.1 Measuring setup Fig 5.
12 5.7.2 Instruction for installation Fig 5.6: Stator antenna supports Fig 5.
13 5.7.3 Calibration signal The torque transducer delivers an electrical shunt signal that can be activated by using switch (6) on the evaluation unit. See also 5.7.5 The transducer should not be under load when the shunt signal is being measured, as the shunt signal is mixed additively. 5.7.4 Stator antenna The cable connection between stator antenna and evaluation unit is realized with a coaxial cable.
14 Fig 5.8: 5.7.5 Axial Alignment Evaluation unit Fig 5.
15 Technical details Supply voltage 9…36 VDC Max. power consumption 30 VA Signal bandwidth Switchable 1000 Hz / 100Hz Voltage output ±10 V Frequency output 5 … 15 kHz Signal-to-noise ratio 63dB (1000Hz) / 83dB (100Hz) Signal transit time 450µs Wireless shunt calibration Key button at control unit Protection class IP40 Weight 700 gramm Temperature range -10 … +70 °C Fig 5.
16 Fig 5.11: Functions of the control unit front side 1 Display Information of Voltage or Current output. The display is only for monitoring purposes, but doesn’t provide the accuracy of an measuring device. 2 Power on The LED signalizes the ON / OFF status of the device 3 RF Level The LED shows a sufficient signal level for data transmission from rotor to stator. 4 Gain switch (see also (8) Switch for activating the adjustment functions of (8). Therefore the switch must be set to “variable”.
17 Fig 5.
18 6 Electrical connection The product offered is a special assembly for stationary systems that is not available on the general market or a transducer for installation by system integrators or plant manufacturers. According to EMVG1 §12 paragraph 2 and Directive 2004/1008/EC article 13 paragraph 1 this product does not require an EC declaration of conformity nor the CE marking.
19 6.1 Use of EMI suppressor To suppress high frequencies a EMI suppressor on the cable between rotor and stator has to be used. Use at least 3 loops of the cable. Fastening must be done in an area not subject to mechanical loads (i.e. no unwanted vibrations, etc.) using cable ties fit for the specific application. Fig 6.1: Installation example EMI suppressor Information Consider longer cable of approximately 40cm due to the installation of the EMI suppressor. The max.
20 6.2 Connector pin assignment BNC Connectors for voltage and frequency output NOTE This torque flange is only intended for operation with a DC supply voltage. They must not be connected to older HBM amplifiers with square‐wave excitation. This could destroy the connection board resistances or cause other faults in the amplifiers.
21 6.3 Supply voltage The transducer must be operated with a separated extra‐low voltage (supply voltage 9…36 VDC). 7 Functional testing You can check the functionality of the rotor and the stator from the LEDs on the evaluation unit. • It is not allowed to extend or reduce the length of the connection cable between rotor and evaluation unit!!! • Don’t lay cable parallel to high voltage and control cable. If this is not avoidable, please let a minimum gap of 50cm and lay the cable inside a steel tube.
22 8 Maintenance The torque transducer is maintenance‐free.
23 9 Dimensions of the stator antenna HBM: Business Document
24 10 Dimensions of the rotor antenna HBM: Business Document
25 11 Declaration of conformity HBM: Business Document
26 Hottinger Baldwin Messtechnik GmbH. Subject to modifications. All product descriptions are for general information only. They are not to be understood as a guarantee of quality or durability. Hottinger Baldwin Messtechnik GmbH. Änderungen vorbehalten. Alle Angaben beschreiben unsere Produkte in allgemeiner Form. Sie stellen keine Beschaffenheits- oder Haltbarkeitsgarantie im Sinne des §443 BGB dar. Hottinger Baldwin Messtechnik GmbH Im Tiefen See 45 • 64293 Darmstadt • Germany Tel.
