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TC-32 User's Guide 

Specifications 

19 

Note 2:  

When thermocouple sensors are connected to different common mode voltages, the channels with 
floating thermocouples sensors will be biased to approximately the average value of the applied 
common mode voltages. Each of the applied common mode voltages must then be less than or equal to 
the average common mode voltage ±1.40 V or [CMV

applied

 

≤ (CMV

average

 ±1.4 V)]. 

Note 3:  

Measurement sensitivity is the smallest change in temperature that can be detected. 

Channel configuration 

Table 2. Channel configuration specification 

Sensor Category 

Condition 

Specification 

Thermocouple 

J, K, S, R, B, E, T, N 

32 differential channels 

Note 4:  

Channel configuration is stored on EEPROM external to the isolated microcontroller by the firmware 
whenever any item is modified. Modification is performed by commands issued from an external 
application, and the configuration is made non-volatile through the use of the EEPROM. 

Compatible thermocouple sensors 

Table 3. Compatible sensor type specifications 

Parameter 

Specification 

Thermocouple 

J: –210 °C to 1200 °C 

K: –270 °C to 1372 °C 

R: –50 °C to 1768 °C 

S: –50 °C to 1768 °C 

T: –270 °C to 400 °C 

N: –270 °C to 1300 °C 

E: –270 °C to 1000 °C 

B: 0 °C to 1820 °C 

Accuracy 

Thermocouple measurement accuracy 

Table 4. Thermocouple accuracy specifications, including CJC measurement error. All specifications are (±). 

Sensor 
Type 

Sensor 
Temperature 
(°C) 

Accuracy Error 
Maximum (°C),  
15°C to 35°C 

Accuracy Error 
Typical (°C),  
15°C to 35°C 

Accuracy Error 
Maximum (°C),  
0°C to 45°C 

Accuracy Error 
Typical (°C),  
0°C to 45°C 

J 

–210 

1.965 

0.910 

2.167 

0.989 

0  

0.787 

0.361 

0.816 

0.375 

1200 

0.752 

0.371 

1.148 

0.508 

K 

–210 

2.295 

1.061 

2.520 

1.152 

0 

0.821 

0.376 

0.852 

0.392 

1372  

1.029 

0.504 

1.560 

0.688 

S 

–50 

2.467 

1.111 

2.655 

1.223 

250 

1.835 

0.825 

1.961 

0.904 

1768 

0.893 

0.361 

1.519 

0.590 

R 

–50 

2.609 

1.174 

2.810 

1.293 

250  

1.862 

0.837 

1.992 

0.918 

1768 

0.754 

0.305 

1.346 

0.520 

B 

250 

2.450 

1.090 

2.707 

1.254 

700 

0.937 

0.424 

1.136 

0.520 

1820 

0.610 

0.300 

1.056 

0.467 

E 

–200 

1.754 

0.811 

1.933 

0.880 

0 

0.775 

0.355 

0.806 

0.369 

1000 

0.657 

0.323 

0.989 

0.437 

Distributed by MicroDAQ.com, Ltd.               www.MicroDAQ.com               (603) 746-5524

Содержание TC-32

Страница 1: ...TC 32 32 Channel Thermocouple Input USB Ethernet DAQ Device User s Guide Document Revision 2 November 2015 Copyright 2015 Distributed by MicroDAQ com Ltd www MicroDAQ com 603 746 5524 ...

Страница 2: ...u of all other warranties expressed or implied including any implied warranty of merchantability or fitness for a particular application The remedies provided herein are the buyer s sole and exclusive remedies Neither Measurement Computing Corporation nor its employees shall be liable for any direct or indirect special incidental or consequential damage arising from the use of its products even if...

Страница 3: ... networks 9 Calibrating the hardware 10 Factory calibration 10 Field calibration 10 Updating firmware 10 Restoring factory default network settings 10 Chapter 3 Functional Details 11 External components 11 USB connector 11 Ethernet connector 11 External power connector 11 TC input connectors measurements and LED 11 Digital I O 13 LED indicators 14 EXPANSION connector 15 Chassis ground connector 15...

Страница 4: ...onnection 22 Network interface 22 Network factory default settings 23 Network security 23 LED displays and the factory reset button 23 Environment 23 Mechanical 23 Signal I O connectors 24 Declaration of Conformity 26 Distributed by MicroDAQ com Ltd www MicroDAQ com 603 746 5524 ...

Страница 5: ...buttons text boxes and check boxes italic text Italic text is used for the names of manuals and help topic titles and to emphasize a word or phrase Where to find more information Additional information about TC 32 hardware is available on our website at www mccdaq com You can also contact Measurement Computing Corporation with specific questions Knowledgebase kb mccdaq com Tech support form www mc...

Страница 6: ...0 100 Ethernet interface Powered by the included 5 V external power adapter PS 5V2AEPS Ethernet interface The TC 32 has a built in 10 100 BASE T auto negotiation high speed communication port With the Ethernet interface you can remotely access and configure your TC 32 from anywhere on the network Only one computer can control the TC 32 at a time A unique media access control MAC address is assigne...

Страница 7: ...de Introducing the TC 32 7 Functional block diagram Device functions are illustrated in the block diagram shown here Figure 1 TC 32 functional block diagram Distributed by MicroDAQ com Ltd www MicroDAQ com 603 746 5524 ...

Страница 8: ...LED Installing the hardware Installing on USB Connect the TC 32 using the cable provided to a to a USB port on a computer running Windows Windows finds and installs the device driver automatically and notifies you that the device is ready to use Installing on Ethernet The TC 32 requires a TCP IP and UDP connection to a network or computer Use the standard Ethernet cable provided to connect the TC ...

Страница 9: ...figured on the TC 32 IP address settings The default settings of the following IP address are assigned to the TC 32 when automatic addressing is disabled or not available DHCP or Link Local for example IPv4 address The IP address that is stored on the device The default IPv4 address is 192 168 0 101 Subnet mask The Subnet mask that is stored on the TC 32 The subnet mask determines the number of bi...

Страница 10: ... a precision voltage source a voltmeter Each ADC two ADCs per device is measured at three points and a linear correction is calculated When prompted enter the voltmeter reading to a precision of three decimal places MCC strongly recommends that you warm up the TC 32 for at least 20 minutes prior to performing field calibration Updating firmware Your DAQ device contains firmware that can be updated...

Страница 11: ...r panel components USB connector The USB connector provides USB communication Ethernet connector The E 1608 has one 10 100 BASE T auto negotiation high speed communication port The port connector is an RJ 45 eight position connector The Ethernet port accepts CAT 5 shielded or unshielded twisted pair cable The maximum communication distance without using a repeater is 100 meters External power conn...

Страница 12: ...ted as follows 11 4 V 10 V 8 6 V 3 10 V Each TC channel becomes biased to the average common mode voltage of 10 V Each common mode voltage must then be within the 10 V 1 4 V limits or 8 6 V to 11 4 V Figure 4 TC 32 common mode voltage connections example Cold junction compensation CJC Each TC input on the TC 32 has a high resolution CJC sensor When you connect the thermocouple sensor leads to the ...

Страница 13: ...kage current is injected into the TC Digital I O The TC 32 provides up to eight digital inputs and 32 digital outputs that are electrically isolated from the host computer and from the TC 32 analog circuits All DIO bits have internal pull up resistors to 5 V that can be disconnected with the rear panel slide switches The recommended maximum length of the 50 pin cable used to connect the DIGITAL I ...

Страница 14: ...al outputs associated with each channel Because the digital alarm outputs are user configurable they can be used to supply additional information visually if the digital outputs are used to drive LEDs such as the channel associated with the alarm condition or differentiating between threshold and CMV alarms Pull up configuration By default pull up is enabled for all eight digital inputs and all 32...

Страница 15: ...nnector Provides a connection point 6 32 screw for chassis ground Connect this to an external grounding source If the TC 32 is connected by USB or by a shielded Ethernet cable to grounded equipment connecting to an external grounding source is not needed since the USB shielded Ethernet connection already grounds the TC 32 and a connected TC 32 EXP RESET button Press and hold this button to restore...

Страница 16: ...TC 32 User s Guide Functional Details 16 Mechanical drawings Figure 5 Enclosure dimensions front Figure 6 Enclosure dimensions rear Distributed by MicroDAQ com Ltd www MicroDAQ com 603 746 5524 ...

Страница 17: ...TC 32 User s Guide Functional Details 17 Figure 7 Enclosure dimensions side Figure 8 Circuit board dimensions Distributed by MicroDAQ com Ltd www MicroDAQ com 603 746 5524 ...

Страница 18: ...ed 75 nA Common mode rejection 50 Hz filtering at DC and fin 50 Hz 110 dB 60 Hz filtering at DC and fin 60 Hz 110 dB Noise rejection 50 Hz filtering at fin 50 Hz 80 dB typ 60 Hz filtering at fin 60 Hz 80 dB typ Input bandwidth 50 Hz filtering 22 Hz 60 Hz filtering 26 Hz Crosstalk Between any two TCx inputs 90 dB Sample rate Note 1 3 Hz max per channel Common mode voltage range Note 2 TCx channel t...

Страница 19: ...thermocouple sensors Table 3 Compatible sensor type specifications Parameter Specification Thermocouple J 210 C to 1200 C K 270 C to 1372 C R 50 C to 1768 C S 50 C to 1768 C T 270 C to 400 C N 270 C to 1300 C E 270 C to 1000 C B 0 C to 1820 C Accuracy Thermocouple measurement accuracy Table 4 Thermocouple accuracy specifications including CJC measurement error All specifications are Sensor Type Se...

Страница 20: ... 15 V Input type CMOS Schmitt trigger Input characteristics 100 kΩ pull up resistor 28 7 kΩ series resistor Maximum input voltage range 0 V to 20 V max power on off relative to IGND pins Pull up configuration All pins pulled up to 5 V via individual 100 kΩ resistors using slide switch SW5 SW5 default positions are on pulled up Transfer rate software paced 500 port reads per second typ Input high v...

Страница 21: ...t output line goes high when alarm condition is met Enabled active low output output line goes low when alarm condition is met Alarm output may be latched and will not clear unless explicitly cleared by the user Alarm latency Note 6 1 second max Note 6 Alarm settings are applied when changed and at power on Temperatures are constantly converted on enabled channels and processed for alarm condition...

Страница 22: ... max Power Self powered no USB current consumed Network Ethernet connection Table 12 Ethernet connection specifications Parameter Specification Ethernet type 100 Base TX 10 Base T Communication rates 10 100 Mbps auto negotiated Connector RJ 45 8 position Cable length 100 meters max Additional parameters HP Auto MDIX support Network interface Table 13 Factory default specifications Parameter Specif...

Страница 23: ...es power on Blinks when blink command is sent Both the POWER and ACTIVITY LEDs blink in firmware upgrade mode ACTIVITY LED On when there is a valid connection and blinks when a command is sent to the TC 32 Both the POWER and ACTIVITY LEDs blink in firmware upgrade mode ALARM LED Indicates that an alarm condition is met OPEN TC LED bottom Indicates that there is an open thermocouple condition Facto...

Страница 24: ...TC3 CH3 sensor input TC19 CH19 sensor input J5 TC4 CH4 sensor input J21 TC20 CH20 sensor input TC4 CH4 sensor input TC20 CH20 sensor input J6 TC5 CH5 sensor input J22 TC21 CH21 sensor input TC5 CH5 sensor input TC21 CH21 sensor input J7 TC6 CH6 sensor input J23 TC22 CH22 sensor input TC6 CH6 sensor input TC22 CH22 sensor input J8 TC7 CH7 sensor input J24 TC23 CH23 sensor input TC7 CH7 sensor input...

Страница 25: ...30 Alarm Output 30 36 DOUT31 Digital Output 31 Alarm Output 31 37 IGND Isolated Digital GND 38 IGND Isolated Digital GND 39 IGND Isolated Digital GND 40 IGND Isolated Digital GND 41 DIN0 Digital Input 0 42 DIN1 Digital Input 1 43 DIN2 Digital Input 2 44 DIN3 Digital Input 3 45 DIN4 Digital Input 4 46 DIN5 Digital Input 5 47 DIN6 Digital Input 6 48 DIN7 Digital Input 7 49 IGND Isolated Digital GND ...

Страница 26: ... EU Conformity is assessed in accordance to the following standards EMC Emissions EN 61326 1 2013 IEC 61326 1 2012 Class A EN 55011 2009 A1 2010 IEC CISPR 11 2009 A1 2010 Group 1 Class A Immunity EN 61326 1 2013 IEC 61326 1 2012 Controlled EM Environments EN 61000 4 2 2008 IEC 61000 4 2 2008 EN 61000 4 3 2010 IEC61000 4 3 2010 EN 61000 4 4 2012 IEC61000 4 4 2012 EN 61000 4 5 2005 IEC61000 4 5 2005...

Страница 27: ...achusetts 02766 508 946 5100 Fax 508 946 9500 E mail info mccdaq com www mccdaq com NI Hungary Kft H 4031 Debrecen Hátar út 1 A Hungary Phone 36 52 515400 Fax 36 52 515414 http hungary ni com debrecen Distributed by MicroDAQ com Ltd www MicroDAQ com 603 746 5524 ...

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