atmos:citation:instruments:king_probe
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atmos:citation:instruments:king_probe [2009/01/20 22:05] – delene | atmos:citation:instruments:king_probe [2022/11/14 19:37] (current) – jennifer.r.moore | ||
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+ | ====== King Probe ====== | ||
+ | * Description: | ||
+ | * Manafacturer: | ||
+ | * Model: KLWC-5 | ||
+ | * Serial Number: SN-PMI-1058-0704-86 (Purchased fall 2008) | ||
+ | * Accuracy: +/- 15% LWC (See http:// | ||
+ | * 200 um Drops: - 50% LWC (See Walter Strapp paper, " | ||
+ | ====== Instrument Requirements ====== | ||
+ | * Power: 28 VDC 10 Amps [Heaters] 28 VDC 70-120 Watts [Source: Paul LeHardy] | ||
+ | |||
+ | * Weigth: 1.8 Kg (4 lbs) [Total weight for control Unit, display and sensor] [Source: Paul LeHardy] | ||
+ | |||
+ | * Size: width - 6 inch. Height - 12 inch. Depth - 12 inch. [Control Unit] [Source: Davie Delene] | ||
+ | |||
+ | * Hot Wire Size: 1.92mm | ||
+ | |||
+ | |||
+ | * Hot Wire Diameter Size: 1.92mm, Length - 47.30mm | ||
+ | |||
+ | |||
+ | |||
+ | |||
+ | ====== Calibrations ===== | ||
+ | |||
+ | * Calibration plots from calibration done on December 30, 2010 from 4550 to 4880 seconds from midnight. | ||
+ | |||
+ | {{: | ||
+ | |||
+ | {{: | ||
+ | |||
+ | ===== Problem ===== | ||
+ | During April 8, 2011 flight the signal voltage was negative. | ||
+ | |||
+ | ===== Cause ===== | ||
+ | The wire on the A/D board was connected backwards for this flight. | ||
+ | |||
+ | ===== Solution ===== | ||
+ | The A/D wires were switched. | ||
+ | |||
+ | |||
+ | ===== Problem ===== | ||
+ | During L3COM flight on November 24, 2004 the King Probe wire broke. | ||
+ | |||
+ | ===== Cause ===== | ||
+ | Normal to sometimes break. | ||
+ | |||
+ | ===== Solution ===== | ||
+ | King Probe wire replace after the flight. | ||
+ | |||
+ | ===== Problem ===== | ||
+ | During the TAMDAR Turbulence flight on September 9, 2005 the King Probe wire broke. | ||
+ | |||
+ | ===== Cause ===== | ||
+ | Flight encounted some heavy rain and a little hail. This resulted in breaking the broken wire. | ||
+ | |||
+ | ===== Solution ===== | ||
+ | King Probe wire replace after the September 13 ferry flight to Fairbanks, Alaska. The King probe power was not turn on during the ferry flights. | ||
+ | |||
+ | |||
+ | |||
+ | =====Problem===== | ||
+ | King Probe voltage possibly high. Probe does not match water content measured by other probes. | ||
+ | |||
+ | |||
+ | |||
+ | |||
+ | =====Solution===== | ||
+ | Varied voltage on a fan blowing on the hot wire of the probe. Dave and Aaron measured the following on 10/25/11 on data file 2011_10_25_19_24_46: | ||
+ | |||
+ | |||
+ | |||
+ | =====Problem===== | ||
+ | 11/5/2011 Flight. Anti-ice not working. | ||
+ | |||
+ | |||
+ | =====Solution===== | ||
+ | 11/8/2011. 5 amp fuse blown in the back of the display head in 3rd rack. Heater/ | ||
+ | |||
+ | {{: | ||
+ | |||
+ | |||
+ | |||
+ | =====Problem===== | ||
+ | December 30, 2021 (12/30/2021 - David Delene). Ground Test had approximately 0.08 volts on slave voltage. | ||
+ | |||
+ | |||
+ | =====Solution===== | ||
+ | 12/31/2021. Replace the Sensor Wire with a new one. Across the middle pin (of the 5 pins) on the Sensor Wire should have almost zero resistance (conduction test, not open circuit). | ||
+ | |||
+ | |||
+ | |||
+ | =====Problem===== | ||
+ | High Slave Voltage (01/14/2022 - David Delene). During the January 14, 2022 IMPACTS flight, the King Probe Slave voltage was above 6.0 volts all during the flight, when the voltage should be 5.0 volts. | ||
+ | |||
+ | |||
+ | =====Solution===== | ||
+ | 01/14/2022. The slave negative connected on the analog to digital board was not secure on the screw connections. Put new pin ends on all slave and signal, positive and negative connectors. | ||
+ | |||
+ | |||
+ | =====Problem===== | ||
+ | High Slave Voltages (01/17/2022 - Jennifer Moore). During the January 17, 2022 IMPACTS flight, the King Prove Slave voltage started with 5.21 volts before take off. After take off, and during the rest of flight the Slave voltage was between 6.1V to 6.2V, which is above the usual 5.0 Volts. Additionally, | ||
+ | |||
+ | =====Solution===== | ||
+ | 01/18/2022. The slave negative and signal negative was labeled incorrectly for the analog to digital board wiring. | ||
+ | * Blue and White wire - Slave high | ||
+ | * Orange and White wire - Slave low | ||
+ | * Black and White wire - Ground (Disconnected) | ||
+ | * All White wire - Signal high | ||
+ | * Green and White wire - Signal low | ||
+ | |||
+ | =====Problem===== | ||
+ | Low Slave Voltages (11/11/2022 - Jennifer Moore). After installing King probe on hot-wire boom during NASA IMPACTS integration, |