This document provides configuration and maintenance instructions for Vaisala Forward Scatter Sensor FD70.
| Document code | Date | Description |
|---|---|---|
| M212222EN-J | November 2024 | For SW release 3.7: Added the following parameter mor.limit.max. For SW release 3.6: Added or modified the following
parameters
Added option FS11 to com1.message1.status. Adjusted LM21 alerts. For SW release 3.5:Added a note instructing to disconnect power before performing any maintenance operations on the transmitter when the TX optical power alarm is on. Updated the information about the ELOG command. Added the alarm Transmitter light source age to Status message. Other changes: Updated the information about MES 7 and MES 8. Added FSCABLE5 to spare parts. Added a note about adjusting settings if FD70 is installed in a high-humidity environment. Updated the figure about type label location. Added instructions for replacing fuses F1, F2, F3, and F4. Modified the section about updating a 1P + 1 circuit breaker to a 2P circuit breaker. The term fuse changed to circuit breaker. Added a note instructing to perform calibration outdoors. Added the lower window contamination value -1.5 % to table Window contamination values. Modified descriptions of Operating voltage and Heating voltage alerts and added Algorithm alert to Status message. |
| M212222EN-H | June 2023 | Updated droplet fall speed distribution information. Updated the information about MES 7 and MES 8. Updated hard reset instructions. |
| M212222EN-G | May 2022 |
The 1P+1 fuse and switch replaced with a 2P fuse. The 2P fuse functions as the AC (mains) power switch. Updated factory reset instructions. Updated METAR Message 7 and Message 8. Added recommended message settings. Updated eye safety information. Updated board wiring figure. |