PGA-ADC 3.4

for H2-CNI 0-10V-I and H2-meTCD 0-10V sensors

The controller PGA-ADC 3.4 serves as evaluation kit for calorimetric, non-isothermally operated H2-CNI 0-10V and and thermal conductivity H2-meTCD 0-10V. It contains a precision, zero-drift programmable gain instrumentation amplifier (G : 0.125, 0.172, 0.25, 0.344, 0.5, 0.688, 1, 1.375, 2, 2.75, 4, 5.5, 8, 11, 16, 22, 32, 44, 64, 88, 128, 176 V/V) and a 16-bit DS analog-to-digital converter with input current cancellation and a bandgap reference with very high accuracy and low thermal drift of 10 ppm/°C (max). A 1K bit EEPROM for storing adjustments and three switchable LEDs (blue, orange, red) as optical signals for different H2 levels are implemented.

For operation of PGA-ADC 3.4, an additional "Switchable Bipolar Power Source" SBPS-LDO 3.12 (together with an included 12V plug-in power supply) and a package of 1-wire-bus stick, two 6p6c-RJ12 cables, USB memory stick with all librariers and the software) is required. The evaluation kit is operated through a 1-wire bus connector with a personal computer, an installed LabVIEW® runtime and the SensorControl software.

DCC-PGA-ADC 3.4

for H2-CNI 4-20mA-I and H2-meTCD 4-20mA sensors

The controller DCC-PGA-ADC 3.4 serves as evaluation kit for calorimetric, non-isothermally operated H2-CNI 4-20mA and thermal conductivity H2-meTCD 4-20mA sensors. It contains a dc-dc converter to galvanically separate the current loop from the 12 V supply voltage. It contains a precision, zero-drift programmable gain instrumentation amplifier (G : 0.125, 0.172, 0.25, 0.344, 0.5, 0.688, 1, 1.375, 2, 2.75, 4, 5.5, 8, 11, 16, 22, 32, 44, 64, 88, 128, 176 V/V) and a 16-bit DS analog-to-digital converter with input current cancellation and a bandgap reference with very high accuracy and low thermal drift of 10 ppm/°C (max). A 1K bit EEPROM for storing adjustments and three switchable LEDs (blue, orange, red) as optical signals for different H2 levels are implemented.

For operation of PGA-ADC 3.4, an additional "Switchable Bipolar Power Source" SBPS-LDO 3.12 (together with an included 12V plug-in power supply) and a package of 1-wire-bus stick, two 6p6c-RJ12 cables, USB memory stick with all librariers and the software) is required. The evaluation kit is operated through a 1-wire bus connector with a personal computer, an installed LabVIEW® runtime and the SensorControl software.

TempSens 3.1

for H2-CNI I2C-I FWB-A sensors

The controller  TempSens 3.1 serves as evaluation kit for our sensors H2-CN I2C-I FWB-A. TempSens 3.1 provides the SDA and SCL lines for the internal I2C bus of the sensor. The controller has a ±1.0°C accurate digital temperature sensor with 12 bit resolution to measure the ambient temperatur and a 1K bit EEPROM.

For operation of PGA-ADC 3.4, an additional "Switchable Bipolar Power Source" SBPS-LDO 3.12 (together with an included 9V plug-in power supply) and a package of 1-wire-bus stick, two 6p6c-RJ12 cables, USB memory stick with all librariers and the software) is required. The evaluation kit is operated through a 1-wire bus connector with a personal computer, an installed LabVIEW® runtime and the SensorControl software. A second kit can be connected to SBPS-LDO 3.12.

PrecVS-PGA-ADC 3.6

for H2-CNI I2C-E ULTD sensors

The controller PrecVS-PGA-ADC 3.6 serves as evaluation kit for our sensors H2-CN I2C-E ULTD. The controller contains an adjustable (256 steps) 300-mA LDO voltage regulator and the second branch of a Wheatstone bridge to power up the sensor. It delivers an excitation voltage up to 12 V. The bridge is zeroed with a 64-position digital rheostat which is a component of the second branch of the Wheatstone bridge. The balance voltage of the bridge is measured with a precision, zero-drift programmable gain instrumentation amplifier (G : 0.125, 0.172, 0.25, 0.344, 0.5, 0.688, 1, 1.375, 2, 2.75, 4, 5.5, 8, 11, 16, 22, 32, 44, 64, 88, 128, 176 V/V) and a 16-bit analog-to-digital converter with input current cancellation and a bandgap reference with very high accuracy and low thermal drift of 10 ppm/°C (max). The controller contains a ±1.0°C accurate digital temperature sensor with 12-bit resolution for ambient temperature measurement and a 1K bit electrically erasable PROM. PrecVS-PGA-ADC 3.6 also provides SDA and SCL junctions to the internal I2C bus of the H2-CNI I2C-E ULTD sensor to access the sensor´s EEPROM and housing temperature sensor.

For operation of PrecVS-PGA-ADC 3.6, an additional "Switchable Bipolar Power Source" SBPS-LDO 3.12 (together with an included 9V plug-in power supply) and a package of 1-wire-bus stick, two 6p6c-RJ12 cables, USB memory stick with all librariers and the software) is required. The evaluation kit is operated through a 1-wire bus connector with a personal computer, an installed LabVIEW® runtime and the SensorControl software.

I2C-USB 2.1

for H2-CNI I2C-I FWB-A sensors

The controller I2C-USB 2.1 serves as evaluation kit for our sensors H2-CNI I2C-I FWB-A for direct connection to an USB interface of a PC without additional components. It provides the SDA and SCL lines for the internal I2C bus of the sensor. The operation voltage of 9V for the sensor is generated in the kit from the 5V USB voltage by means of a step-up converter. The controller contains a ±1.0°C accurate digital temperature sensor with 12-bit resolution to determine the ambient temperature as well as a 1K bit EEPROM.

For operation, the evaluation kit is connected with the USB port of a Windows®-PC, on which a LabVIEW® runtime and our SensorControl software run.  Only one sensor can be connected to I2C-USB 2.1.