There are two different analog input lines on LabPro. They are Vin low (0 to 5 V) and Vin (-10 to +10 V). Most of the time we use the 0 to 5 volt line. The only exceptions are:<\/p>\n
– The voltage probe which comes with LabPro or CBL or CBL 2
\n– some microphones<\/p>\n
The microphone situation is complex. Most microphones are actually wired so that both lines come into the LabPro. These include: MCA-CBL and MCA-BTA. The ULI microphones are only wired to use the 0 to 5 V line. MPLI microphones are only wired to use the -10 to +10 V line. <\/p>\n
Most experiment files used in Logger Pro<\/i> 2.1 are set up to use the 0 to 5 volt line. Therefore, they should work with all microphones except the MPLI Microphones. To use a MPLI microphone, you need to open the file, select sensor setup and change the probe from Microphone to Voltage Probe (-10 to +10 V). Also, you need to change the triggering level, if trigger level is used. Note that the triggering needs to be set at about 0.1 volts for using the MPLI microphone. <\/p>\n
In Logger Pro<\/i> 3.x, the situation is pretty much the same as with LP2. To use an MPLI microphone via a CBL-8MC adapter, you need to set the sensor up as a +\/- 10 volt Voltage probe, and not as a microphone.<\/p>","protected":false},"excerpt":{"rendered":"
There are two different analog input lines on LabPro. They are Vin low (0 to 5 V) and Vin (-10 to +10 V). Most of…<\/p>\n","protected":false},"author":31,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[],"tags":[643,166,226,533,127],"class_list":["post-726","post","type-post","status-publish","format-standard","hentry","tag-cbl-8mc","tag-labpro","tag-mca-m","tag-microphone","tag-mpli"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/posts\/726","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/users\/31"}],"replies":[{"embeddable":true,"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/comments?post=726"}],"version-history":[{"count":0,"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/posts\/726\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/media?parent=726"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/categories?post=726"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/tags?post=726"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}