1. About This Document
1.1 Version Information
Table 1 Document Versions
Document Code Date Description
M211897EN-D March 2018 • Added information about using the probe with Vaisala Insight
PC software.
• PuTTy terminal settings instructions updated.
• Calibration uncertainty specification updated.
• DTR250A radiation shield pole mounting kit added.
• Added recommendation to disable MI70 indicator's automatic
power o feature when used with GMP252.
• Updated instructions on using MI70 to configure
environmental compensations.
• Default device address in serial line communication corrected
(240).
• Corrected the unit information of sdelay command.
• Added a note about maximum voltage output to analog error
state output configuration.
• Information on Modbus register numbers updated.
M211897EN-C
June 2017 • Added information about using the probe with Vaisala Indigo
transmitters.
• Added flow-through apdater accessory ASM212011SP, spray
shield accessory ASM212017SP, and radiation shield accessory
DTR250.
• Modbus status register information updated.
• Calibration adapter order code corrected.
M211897EN-B August 2016 Modbus status register values and descriptions updated.
1.2 Related Manuals
Table 2 Related Manuals
Document Code Description
M211893EN Vaisala CARBOCAPâ Carbon Dioxide Probe GMP252
Quick Guide
M211799EN Vaisala CARBOCAPâ Carbon Dioxide Probe GMP251
User Guide
M211798EN Vaisala CARBOCAPâ Carbon Dioxide Probe GMP251
Quick Guide
M211877EN
Vaisala Indigo
™
201 Analog Output Transmitter User
Guide
Chapter 1 – About This Document
7