JAS767906AA

SGX Europe Sp. z o.o. Building 11 Ligocka St. 103, 40-568 Katowice, Poland T: +48 (0) 32 438 4778 E: sales.is@sgxsensortech.com www.sgxsensortech.com ECVQ-EK3 Datasheet Electrochemical and Pellistor Gas Sensor Evaluation Kit Get started quickly in gas sensor instrument design using pellistor and electrochemical gas sensors from SGX. Simply attach the universal power supply, connect to a PC USB port and plug in an SGX pellistor or electrochemical gas sensor. The SGX data logging and control software allows the performance of electrochemical and pellistor gas sensors to be assessed and makes it easy to capture performance data. Users can experiment with different settings before designing their own instrument. Circuit diagram and parts list supplied. INTRODUCTION The SGX ECVQ-EK3 Gas Sensor Evaluation Kit will drive the SGX range of electrochemical and pellistor (including thermal conductivity) gas sensors, automatically measure the sensor outputs and calculate gas concentration levels. Sensors can be monitored automatically via the USB interface with an easy-to-use control and data logging PC application provided on CD. Alternatively a terminal program such as HyperTerminal can be used to send simple commands to the on-board microcontroller. The user manual provides a comprehensive set of commands. The PCB provides sockets for use with SGX electrochemical and pellistor gas sensors. Electrochemical devices and VQ500 series pellistor heads can be plugged directly onto the PCB. Terminal blocks are also provided for individual pellistor devices or for connecting to VQ600 series pellistor head cables. A temperature sensing IC is provided on the PCB close to the sensor socket positions. For electrochemical sensors the bias voltage can be adjusted or set to zero and the output is given in nA or mA. For pellistor devices the bridge voltage can be adjusted and the bridge output is given in mV. In both cases, where the sensor has a linear response to concentration, a basic calibration can be performed using the supplied software to give a concentration reading in ppm, %volume or %LEL (Lower Explosive Limit). An expansion connector provides access to four configurable alarms (open collector), two analog outputs and four digital inputs. LEDs on the board mimic the status of each alarm. A JTAG header allows advanced users to upload their own software to the microcontroller (MSP430F2616) and make full use of the available interfaces. A universal mains adapter is also supplied or the user may connect a 9 V power supply to the terminal block connector. Gas sensors to be ordered separately FEATURES  For use with SGX electrochemical gas sensors  For use with SGX pellistor/thermal conductivity gas sensors:  Individual bead pairs  VQ500 series heads  VQ600 series heads  Simple control and set-up of sensors  USB interface to a Personal Computer (PC)  Free PC application software for easy control and data logging  Adjustable pellistor bridge voltage (1.6 V to 4.6 V)  Adjustable electrochemical bias voltage (-700mV to +350mV)  16-bit Analog to Digital Conversion (ADC) for sensor outputs  Calibrate sensors with linear response and monitor gas concentration levels  PCB mounted temperature sensor IC  Four configurable alarm outputs  Two configurable analog outputs (12-bit DAC)  Four digital inputs  Expansion header for additional applications  JTAG header for user software upload  Supplied with universal mains adapter  Supplied with user manual on CD  Gas flow hoods available separately Note: The ECVQ-EK3 cannot be used with SGX-4OX, SGX-7OX & SGX-4DT sensors. Whilst SGX has taken care to ensure the accuracy of the information contained herein it accepts no responsibility for the consequences of any use thereof and also reserves the right to change the specification of goods without notice. SGX accepts no liability beyond the set out in its standard conditions of sale in respect of infringement of third party patents arising from the use of SGX products in accordance with information contained herein. In case of modification of the product, SGX disclaims all liability. SGX Europe sp .z o.o. Poland REGON: 362332227 DS-0238, Issue 1, 10-May-2016, Page 1 ELECTRICAL DATA MECHANICAL DATA Universal Mains Adapter Dimensions Input Voltage Input Frequency Adapters supplied Output Mains Adapter Evaluation Kit PCB 90 - 264 V ac 50 – 60 Hz UK, Europe, USA, Australia. 9 V dc 72 x 45 x 29 mm 130 x 55 mm ENVIRONMENTAL DATA PCB Interfaces DC Supply Input SK4 TB1 Input Voltage Input Protection Gas Sensor Sockets S1 S2 TB2 TB3 Operating Temperature Range 2.1 x 5.5 mm Socket, centre positive Terminal Block 9 V  10% Over voltage & current, Reverse voltage VQ500 Series Pellistor Electrochemical Sensor VQ600 or individual compensator VQ600 or individual pellistor Expansion Connector PL2 2 x 10-pin 0.1” PCB Header 3V3 Regulated 0V Input 1 (3V3 logic) Input 2 (3V3 logic) Input 3 (3V3 logic) Input 4 (3V3 logic) 0V 0V Spare RXD (3V3) 0V JTAG Connector PL1 TDO TDI TMS TCK 0V TRST Unused 1 3 5 7 9 11 13 15 17 19 2 4 6 8 10 12 14 16 18 20 9 V Unregulated 0V Output 1 (Open collector) Output 2 (Open collector) Output 3 (Open collector) Output 4 (Open collector) Analog Out 1 (0 - 2.048 V) Analog Out 2 (0 - 2.048 V) Spare TXD (3V3) Spare 2 x 7-pin 0.1” Box Header 1 3 5 7 9 11 13 2 4 6 8 10 12 14 VCCO VCCI Unused Unused Unused Unused Unused Operating temp: 0 C to +40 C Storage temp: -25 C to +85 C Operating humidity: 10 to 90% PCBs Operation and storage from -30 C to +75 C Sensors See individual sensor data sheets PERFORMANCE DATA ADC Resolution DAC Resolution Pellistor bridge voltage Electrochemical bias ADC Resolution (Pel) ADC Resolution (Elect.) Temperature sensor IC accuracy 16-Bit 12-Bit 1.6 to 4.6V (adjustable) -700mV to +350mV (adjustable)