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Dear user,. We have made every effort to ensure the accuracy of the contents of this manual. Should any errors be detected, we would greatly appreciate to receive suggestions to improve the quality of the contents of this manual. The above not withstanding, we can assume no responsibility for any errors in this manual or their eventual consequences.
We reserve rights to make modifications to this manual without any further notice. E-mail: sales beamex. General Thermocouple measurement. Configuration for thermocouple measurement Wiring for thermocouple measurement. Millivolt measurement RTD- and resistance measurement. Milliampere measurement Volt measurement. It is specially designed for field operation.
In addition, it is ideally suited for use in laboratories and maintenance shops. Further, it can simulate temperature sensors. These features together with the good accuracy make it an excellent tool for calibration of temperature sensors and temperature measurement devices.
It contains two operating sections with galvanic isolation. One section may generate the input of the instrument under test. Simultaneously, the other section measures the output signal of the instrument. The optional TCAL utility enables connection to calibration databases. It can download instrument data to the calibrator and upload calibration results to the database. You can use the database for scheduling, record keeping and documenting of calibrations.
The optional SWITCH utility uses a unique method for quick and accurate calibration of temperature switches thermostats and electrical limit switches. The Sensor Modification option enables modification of standard temperature sensor definitions. Additional sensor definitions are also available as option. Unpacking and inspection. It should be free of scrapes and scratches and in proper operation order upon receipt.
The receiver should, however, inspect the unit for any damage that may have occurred during transit. If there are signs of obvious mechanical damage, package contents are incomplete, or the instrument does not operate according to specifications, contact the purchasing sales office as soon as possible. The standard accessories are as follows:. If you have to return the instrument to the factory for any reason, use the original packing whenever possible.
Include a detailed description of the reason for the return. To remove the carrying case, open the carrying case flaps and the strap around the instrument. Pull out the instrument by lifting the rear of the instrument about an inch and the front of the instrument as much as possible. Turn the carrying handle downwards in front to support the instrument for better viewing.
Install the instrument back to the carrying case in the reverse operations. When using the instrument for operation in the field, keep it in the carrying case to protect the instrument. Further, during field operations the ambient temperature may vary suddenly. Sudden temperature changes may have a slight effect on the accuracy of the instrument.
You can reduce this effect to a minimum by keeping the flaps of the carrying case closed whenever possible. Section A. Section B. Do not connect the calibrator or the leads to hazardous voltages.
The galvanic isolation between the sections A and B of the calibrator is for functional purposes only. Do not connect higher voltage than 50V between the sections. The measurement terminals are in connection to the calibrator chassis. Therefore, while measuring circuits that are in connection to ground, do not connect the chassis to ground by any other means. This could happen for instance by using the non-isolated computer interface RS1 during the measurement.
However, long exposure to this kind of stress may affect the accuracy. They should be tight and safe within the specified temperature range. If you, however, detect any leak of the electrolyte, instantly replace the batteries.
Do not touch the leaked electrolyte. It is very toxic and corrosive. In case of contact with skin, immediately flush with water. Consult a physician if burning or redness persist. If eye exposure occurs, flush with water for 15 minutes and consult physician.
Clean carefully any electrolyte leak to avoid corrosion. Discharge the used battery entirely before disposing it. The batteries contain lead compounds and they are classified as hazardous waste. Dispose the used batteries properly according to the local regulations. Connect the new battery pack properly according to the label on the battery pack cover. Avoid short circuiting a charged battery, the short circuit current may cause burns to you, damage to the device or even fire.
Notice, that also new replacement batteries are shipped in charged state. The vented gas mixture may be highly explosive, but normally it diffuses rapidly into the atmosphere.
To avoid danger, use only the original charger and never recharge in a gas-tight container. Sometimes it is necessary to use a portable radio transceiver while working with the calibrator. To prevent calibration errors caused by the radio frequency interference, keep the radio far at least 1 meter from the calibrator and the circuit under calibration while sending. Hold the key pressed until the calibrator shows the message.
During the test sequence it sets the default configurations as explained in part C of this manual. The automatic off switching of light is, however, disabled if the calibrator with fully charged batteries is connected to the charger.
The batteries become fully charged in 10 hours, but it is recommended to keep the charger connected whenever possible. A good average is about 24 hours. When the batteries are almost empty, the text ' BATT. LO ' is periodically shown on the lower display. If the battery voltage sinks further, the control system switches the instrument off. This prevents erroneous readings caused by too low voltage and protects the batteries and the data in the memory. The self discharge of the batteries also decreases the remaining battery capacity.
The self discharge rate increases at high ambient temperature. If you do not recharge the batteries in time, the voltage may go too low permanently damaging the batteries. With fully charged batteries this takes several months, but empty batteries may only last weeks.
To avoid battery damage and loss of calibrator memory, recharge empty batteries within a few days. Connections are easy to make and do not obstruct the displays or keypad. The following figure briefly describes the terminals for electrical connections. The connections are described in details in part B of this manual. The thermocouple connector block is specially designed to be easy to use.
Further, it keeps the errors in the reference junction compensation as small as possible. Accurate reference junction compensation is specially important in portable field calibrators. A spring loaded clip pushes the wires or the thermocouple plug against the. You can open the clip entirely by pushing. With separate wires it is more convenient to open only one end of the clip by pushing either end of the bar. If the thermocouple has a standard or miniature plug, connect the plug to.
Push the middle of the bar and. Pay attention to place the plug in right polarity, the thick pin - into the larger hole. When releasing the plug, push the bar again. Connect stripped wires or wires with banana-plug to the outermost holes of the thermocouple connector block as shown in the following drawing. Push the respective end of the bar. Put the wire in the hole and release the bar.
Make sure to connect the wires in right polarity as marked on the connector block. When disconnecting the wires from the connector block, push the bar to open the holes before removing the wires.
The contact surface of the thermocouple connector block is gold-plated. To maximize the lifetime of the connector block, properly open the clip whenever placing or removing wires or plugs.
BEAMEX TC303 PDF
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Beamex TC305 TC303 Omega CL523 Op Manual
The Beamex Integrated Calibration Solution ICS is the combination of software, hardware and calibration expertise that delivers an automated and paperless flow of calibration data. Find out more about how it works. We offer various calibrators , calibration software and related services. For calibrators we make pressure calibrators , temperature calibrators and electrical calibrators. Our calibrators come as portable calibrators or calibration benches for workshops.
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