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chriscatford
Newbie
Joined: 16 Aug 2008
Posts: 1
Location: Canterbury
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 Posted: Sat Aug 16, 2008 3:43 pm Post subject: Measuring temperature with ADC-20 & LM35 |
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I'm having trouble working out how to measure temperature using an ADC-20 with the terminal board and an LM35 sensor.
I've got the three LM35 pins connected directly to the 2.5V, channel 7 and AG connectors, but this isn't working.
I'm a novice, so any advice would be very gratefully received.
Thanks, Chris |
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gruntman
Guru
Joined: 28 Sep 2006
Posts: 96
Location: Garden City, KS USA
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| Posted: Mon Sep 08, 2008 4:20 pm Post subject: |
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Chris,
The LM35 reqiures a voltage supply of 4 to 30 volts. As the ADC-20 only operates at 2.5V you will need an external power supply to use it with the ADC-20.
Regards,
Richard Boyd
Crag Technologies, Inc
http://www.pc-oscilloscopes.com |
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olepagh
User
Joined: 01 Jan 2005
Posts: 3
Location: Copenhagen, Denmark
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| Posted: Sun Sep 14, 2008 6:11 am Post subject: |
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| gruntman wrote: | Chris,
The LM35 reqiures a voltage supply of 4 to 30 volts. As the ADC-20 only operates at 2.5V you will need an external power supply to use it with the ADC-20.
Regards,
Richard Boyd
Crag Technologies, Inc
http://www.pc-oscilloscopes.com |
That is a strange answer, as according to the specifications the ADC-20 and ADC-24 supply output at ยจ+ and -5V. The 2.5 V output is a reference output (+/- 2.5 mV)
/regards Ole
Denmark |
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