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MODEL 110-WS-16TH

EQUIPMENT CONFIGURATION AND IDENTIFICATION

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Содержание 110-WS-16TH

Страница 1: ...NOVALYNX CORPORATION MODEL 110 WS 16TH TEMPERATURE AND RELATIVE HUMIDITY SENSOR INSTRUCTION MANUAL REVISION DATE NOV 2005 ...

Страница 2: ...es are not available take the equipment to the nearest Post Office UPS or other freight service and obtain assistance with the packaging Please write the RA on the outside of the box Warranty NovaLynx Corporation warrants that its products are free from defects in material and workmanship under normal use and service for a period of one year from the date of shipment from the factory NovaLynx Corp...

Страница 3: ...3 1 Relative Humidity Sensor 3 3 2 Temperature Sensor 3 4 0 CALIBRATION 4 4 1 Sensor Calibration 4 4 2 Field Checking Relative Humidity 5 4 3 Field Checking Temperature 6 5 0 MAINTENANCE 6 5 1 Cleaning the RH Sensor 7 5 2 Cautions 7 6 0 TROUBLESHOOTING 8 6 1 Power Problems 8 6 2 Determining the Source of a Failure 8 7 0 SPECIFICATIONS 9 ...

Страница 4: ...iii MODEL 110 WS 16TH EQUIPMENT CONFIGURATION AND IDENTIFICATION ...

Страница 5: ...nsing elements The humidity element is plugged onto mounting pins through the use of a plastic holder The mounting pins are also the electrical contacts The temperature sensor is plugged onto two pins adjacent to the humidity pins A protective membrane inside a plastic shield encloses the sensing elements in the end of the probe The membrane allows moisture to pass through its walls to reach the h...

Страница 6: ...r from its shipping carton and install the sensor into the solar radiation shield The sensing element is located at the end of the probe with the smaller diameter and it is covered by a protective membrane Place the sensing end of the probe into the shield first and slide it into the shield as far as possible but one inch away from the top edge A cable clamp is used to secure the sensor and its ca...

Страница 7: ...t acts as a capacitor that changes with respect to the vapor pressure of the air The sensor s capacitance electrically changes the frequency of an electronic circuit The sensor signal conditioning circuitry converts the frequency change into an analog voltage The output signal is a linear DC voltage with a range of 0 to 1 Vdc corresponding to 0 to 100 RH The excitation to the RH sensor circuitry i...

Страница 8: ...670 5 25 410 10 19 900 15 15 720 20 12 490 25 10 000 30 8 057 35 6 531 40 5 327 45 4 370 50 3 640 55 2 986 60 2 486 4 0 CALIBRATION 4 1 Sensor Calibration The 110 WS 16 Combination Temperature Humidity Sensor does not require calibration and has no calibration adjustments available to the user The calibration can be checked and compared to standard sensors to ensure that the sensor is working prop...

Страница 9: ...g driven fan and has precision thermometers An easier method is to check the sensor operation using a second electronic sensor such as Model 225 HM34 C The 225 HM34 C uses the same sensing elements and allows quick and easy checking of the humidity and temperature Reading of the 225 HM34 C is direct using the built in LCD display Should the RH probe appear to be out of calibration even after chang...

Страница 10: ...ing it is important to remember to place the test instrument sensing element into close proximity with the end of the 110 WS 16TH sensor If this task is difficult to accomplish due to site configuration remove the 110 WS 16TH from its shield and place it into an insulated box or bag alongside the test instrument Return the sensor and mounting hardware to its original configuration upon completion ...

Страница 11: ...he probe Replace the membrane filter if it appears to be frayed or cut The filter may be cleaned with a soft bristle brush to remove any loose dust or dirt Warning Never attempt to clean the sensor assembly by mechanical means such as brushing or wiping The sensing element will be permanently damaged If you suspect the humidity element is defective replace it immediately with a new element The hum...

Страница 12: ...sufficient charge and an adequate voltage level to power the instrument and that all connections are secure Inspect the battery terminals to ensure that they are clean and solidly connected to the battery 6 2 Determining the Source of a Failure To determine whether the trouble is in the sensor or the electronics try to manually operate the sensor by increasing the relative humidity or temperature ...

Страница 13: ...s Operating Parameters Operating temp range 40 to 140 F 40 to 60 C External output load Greater than 100 000 ohms Relative Humidity RH sensor type INTERCAP Range 10 to 90 RH at specified accuracy Output signal range 0 0 to 1 000 Vdc linear Accuracy at 20ºC 3 RH Operating range 0 to 100 RH Temperature coefficient 1 5 RH from 10 to 60 C Stability 2 RH over 2 years Output signal 0 1 Vdc 0 100 RH 10 m...

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