Table of Contents:
Relevant Devices
Description | Qty | Source | Part Number | |
|---|---|---|---|---|
Barometer/Humidity Sensor | 1 | Vaisala | PTU300 | |
Serial Interface Cable | 1 | Vaisala | 19446ZZ | |
RS-232 to Ethernet Adapter | 1 | Lantronix | UDS2100 | This is the version with two serial ports (but standard 9-pin RS-232 connectors) |
Relevant Functional Block Diagram
Software Actions
Action | Notes | |
|---|---|---|
| 1 | Read pressure value | Value reported as telemetry (see below) |
| 2 | Read temperature value | Value reported as telemetry (see below) |
| 3 | Read relative humidity value | Value reported as telemetry (see below) |
Required Adjustable Settings
Setting | When Needed | Notes | ||
|---|---|---|---|---|
Build | Observing | Maintenance | ||
Pressure measurement frequency | Yes | No | Maybe | |
Temperature measurement frequency | Yes | No | Maybe | |
Relative humidity measurement frequency | Yes | No | Maybe | |
Required Telemetry
Parameter | Report Frequency | Purpose | Notes | |
|---|---|---|---|---|
| 1 | Pressure measurement | Once per minute [TBC] | Environmental monitoring | |
| 2 | Temperature measurement | Once per minute [TBC] | Environmental monitoring | |
| 3 | Relative humidity measurement | Once per minute [TBC] | Environmental monitoring |
Required Alarms
Parameter | Threshold | Notes | |
|---|---|---|---|
| 1 | |||
| 2 |
Relevant Datasheets & Manuals
Description | File | Source | |
|---|---|---|---|
| 1 | Vaisala PTU300 User’s Guide (2019 version; device purchased in 2014) | ||
| 2 | Lantronix UDS 2100 Quick Start Guide | https://www.lantronix.com/products/uds2100/#tab-docs-downloads | |
| 3 | Lantronix UDS 2100 User Guide |
Relevant Software
Description | Files | |
|---|---|---|
| 1 | Python 2 software written by a student some years back. These lines of code were used to read values from the Vaisala while it was installed at Keck. That installation was using a USB interface on a Windows machine. Not sure if the current serial interface will change anything here. |
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