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Related Manuals for NPI MTC-20/2SD
Summary of Contents for NPI MTC-20/2SD
- Page 1 OPERATING INSTRUCTIONS AND SYSTEM DESCRIPTION FOR THE MTC-20/2SD TEMPERATURE CONTROL SYSTEM VERSION 4.1 npi 2017 npi electronic GmbH, Bauhofring 16, D-71732 Tamm, Germany Phone +49 (0)7141-9730230; Fax: +49 (0)7141-9730240 support@npielectronic.com; http://www.npielectronic.com...
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Page 2: Table Of Contents
MTC-20/2SD User Manual _______________________________________________________________________________________________________________ Table of Contents 1. Safety Regulations ......................3 2. MTC-20/2SD Components ....................4 3. MTC-20/2SD System ......................4 3.1. System Description ...................... 4 3.2. Description of the Front Panel ..................5 3.3. Rear Panel Elements ....................8 3.4. -
Page 3: Safety Regulations
(e.g. for diagnosis or treatment of humans), or for any other life-supporting system. npi electronic disclaims any warranties for such purpose. Equipment supplied by npi electronic must be operated only by selected, trained and adequately instructed personnel. -
Page 4: Mtc-20/2Sd Components
3. MTC-20/2SD System 3.1. System Description The MTC-20/2SD temperature control system is designed for heating purposes in electrophysiological experiments. The MTC-20/2SD system is housed in small desktop cabinet that can be placed close to the microscope, with built-in power supply and cooling elements for the power devices. -
Page 5: Description Of The Front Panel
_______________________________________________________________________________________________________________ 3.2. Description of the Front Panel Figure 1: MTC-20/2SD front panel view In the following description of the front panel elements each element has a number that is related to that in Figure 1. The number is followed by the name (in uppercase letters) written on the front panel and the type of the element (in lowercase letters). - Page 6 MTC-20/2SD User Manual _______________________________________________________________________________________________________________ (3) ALARM LED This LED lights if temperature SENSOR A (13) is not connected, broken or short- circuited. The POWER OUTPUT (18 / 19) shuts down if this LED is on and the MODE switch (14) is set to SENSOR A.
- Page 7 (max. 12V DC and 1A) for devices with the ALA DIN connector cable assembly. (e.g., HPC-G, see www.alascience.com). (14) MODE switch Switch to select the operation modes of the MTC-20/2SD. Four modes are available: SENSOR A: the temperature determined by SENSOR A (13) is used for the control system...
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Page 8: Rear Panel Elements
Always disconnect mains power plug when replacing fuse. Caution: The instrument may be damaged if the wrong line fuse is installed, e.g., 0.4 A if the MTC-20/2SD is operated at 115 V! GROUND: Banana jack providing system ground. -
Page 9: Electronic Control And Protection Circuits
0 V to 12 V. The ALARM circuit (see below) is disabled in this mode. The MTC-20/2SD is designed with a unipolar output. If a resistive load is used, the system can be used for heating purposes in all modes (SENSOR and DIRECT). -
Page 10: Setting The Desired Temperature
MTC-20/2SD User Manual _______________________________________________________________________________________________________________ Internal SENSOR mode In this mode the output voltage is controlled by the PI controller (PI [proportional-integral controller system] activated). The temperature signal which is used for the control unit is selected by the MODE switch. -
Page 11: Temperature Sensors / Block Diagram
MTC-20/2SD User Manual _______________________________________________________________________________________________________________ 5. Temperature sensors / Block diagram 5.1. DIN Connector Figure 2: How to connect the temperature sensor ___________________________________________________________________________ version 4.1 page 11... -
Page 12: Available Sensors
MTC-20/2SD User Manual _______________________________________________________________________________________________________________ Figure 3: Connector pinout of the DIN connector (pins 1 and 3 are connected internally) 5.1. Available sensors Figure 4: Temperature sensors and cable. The sensors come with a connection cable (TS-CAB, see Figure 4, left) with a DIN connector on one end and two 1 mm connectors on the other end. -
Page 13: Block Diagram
MTC-20/2SD User Manual _______________________________________________________________________________________________________________ 5.2. Block diagram Figure 5: Block diagram of the MTC-20/2SD ___________________________________________________________________________ version 4.1 page 13... -
Page 14: Operating Guide - Tuning Procedure
set the DESIRED TEMPERATURE to e.g. 37 °C DESIRED TEMP ./°C 35 37 40 turn on the MTC-20/2SD and wait at least 15 minutes to warm up the instrument. The temperature display should show the actual temperature at the sensor turn the LIMITER to 100%... - Page 15 DESIRED TEMPERATURE) is highly dependent on the first settings of GAIN and INTEGRATION. Thus, when beginning to use the MTC-20/2SD we recommend to try out several first settings of GAIN and INTEGRATION to find out which settings are best for your experimental conditions.
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Page 16: Operation With Hpt-2A Heated Perfusion Tube (Discontinued)
MTC-20/2SD User Manual _______________________________________________________________________________________________________________ In Figure 6 the time course of temperature regulation of the MTC-20/2SD is shown. As resistive load a bulb was used. The temperature sensor was fixed directly on the bulb and sensor and bulb were wrapped with foam. Starting temperature was 27,3°C. Starting conditions were: LIMITER set to 0, GAIN set to 0, INTEGRATION off. -
Page 17: Literature
MTC-20/2SD User Manual _______________________________________________________________________________________________________________ 7. Literature Kettenmann, H. and R. Grantyn (eds.) Practical Electrophysiological Methods, Wiley-Liss, New York 1992 Froehr, F. and F. Orttenburger Introduction to Electronic Control Engineering, Siemens AG, Berlin and Munich 1982 8. Technical Data Sensor input: for semiconductor 2252 ...
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