Table of Contents
Related Manuals for Hygrodynamics AIRIC 1072
Summary of Contents for Hygrodynamics AIRIC 1072
- Page 1 Sampling Dew Point Hygrometer Model 1072 Newport Scientific, Inc newport-scientific.com P 301-498-6700 8246 Sandy Court Suite E F 301-490-2313 Jessup, MD 20794 email sales@newport-scientific.com hygrotechnical@newport-scientific.com...
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Page 2: Table Of Contents
Manual Revisions Date Changes 12/2019 Initial release 6/2020 Product revision update. Dew point ranges updated. Product Revisions When device is powered on, a product revision code will be displayed on the LED display for 2 seconds. Revision Date Description R2.01 12/2019 Initial release for 1072A only. -
Page 3: Product Overview
Product Overview The 1072 dew point hygrometer is used to measure moisture content of process air which is at atmospheric pressure. The hygrometer has a built-in vacuum pump which continuously draws in a small volume of process air and provides real-time indication of dew point on an LED display. Visual and audible alarm indicators warn when high moisture levels are detected. - Page 4 Application Suggested Model Desiccant dryers for plastics molding 1072A Limited dew point desiccant dryers 1072B Hot air dryers for plastics molding 1072C or 1072D Bulk material testing, ambient air testing 1072D or 1072E The hygrometer and its accessories are housed in a portable carrying case. Before using the hygrometer, familiarize yourself with the items shown below: 1072_B June 2020...
- Page 5 POWER SWITCH Turns hygrometer ON and OFF. ALARM SWITCH Enables local audible alarm when dew point exceeds the alarm set point. LINE CORD Provides connection to power. BEEPER Provides audible signal when the measured dew point is above the alarm set point. HIGH DEW POINT Red light is on when measured dew point is INDICATOR...
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Page 6: Using The Airic
Using the Airic The 1072 is designed to sample process air that is near atmospheric pressure, NOT compressed air. If you are attempting to monitor compressed air, consult the factory for other model options. CAUTION: The carrying case is not heat resistant. It may melt or distort if left on hot equipment. - Page 7 Bulk Material Testing The dryness of bulk material such as plastic resin, raw materials, or food products can be inferred from the dew point of air within the storage container. Depending on the shape of material and size of storage container, it may be helpful to use a short length of metal tubing or Hygrodynamic’s sampling wand to probe into the material.
- Page 8 Material testing sample location Hopper Air flow Dryer Dryer testing sample location Dryer Performance Testing The performance of a resin dryer can be checked by measuring the dew point of its output air. Connect the 1072A sample tubing to a point on the dryer’s output line, before the material hopper.
- Page 9 sure not to exceed the sample tubing temperature rating. Turn on the 1072A. When a hopper is initially loaded with material, high dew points at the hopper’s air return are normal while moisture is removed. The initial reading will be high until the material begins to dry. It can take many hours to dry some materials.
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Page 10: Maintenance And Adjustments
Maintenance and Adjustments The factory offers a maintenance and calibration service for the 1072. This service should be performed annually. Alternatively, most wearable parts can be replaced by the user. To access the serviceable parts inside the hygrometer, the 1072 panel must be removed from the carrying case. - Page 11 Sensor Replacement The internal sensor should be replaced on a yearly basis. It is difficult to verify the accuracy of the sensor in the field. For most users, an annual sensor replacement can assure good operation of the hygrometer. It is recommended to replace the sample tubing and air filter whenever the sensor is replaced.
- Page 12 Display Units & Alarm Set Point Adjust Configuration options are available through a push button interface on the PC board. Locate the buttons labelled UP and DOWN near the sensor housing. These two buttons are used to navigate through the menu. Scroll through options using the UP and DOWN buttons, and press both buttons together to select (this is the ENTER command).
- Page 13 Menu Navigation Menu enters at SEt1 option. Use UP or DOWN to navigate from there. When finished making selections, scroll back to oPEr and press ENTER, or wait for unit to automatically revert to oPEr mode after several seconds. Configuration Menu Options Mode Operational...
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Page 14: Troubleshooting
Troubleshooting Dry-Down Test The desiccant tube is used to provide a reliable source of dry air for field testing the hygrometer’s response. Follow this procedure if the hygrometer indicates a constant high dew point but you suspect that your process air is dry. NOTE: Make sure the desiccant is blue in color. - Page 15 Troubleshooting Hints Hygrometer always indicates over range. Possible Cause Corrective Action Humid air getting into Make sure the fitting at your sample point hygrometer is air tight. Also, check for a cracked air filter and replace if needed. Inadequate sampling suction With hygrometer on, use finger to block sample tubing.
- Page 16 Hygrometer always indicates under range. Possible Cause Corrective Action Sensor cable disconnected Disassemble the hygrometer and make sure sensor cable is plugged into the 3 pin sensor insert. Sensor missing or damaged Unplug the sensor cable and short the 2 outer cable terminals together with a jumper wire.
- Page 17 Hygrometer is slow to respond Possible Cause Corrective Action Inadequate sampling suction With hygrometer on, use finger to block sample tubing. If you don’t feel suction, the vacuum pump may be worn or damaged, or the 3 pin sensor insert holding the sensor may be cracked and leaking.
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Page 18: Specifications
Specifications DEW POINT RANGE DEFAULT MODEL ALARM SET CODE SENSOR (at nominal 80F air temp.) 1072A 1405DM -40F to +30F (-40C to -1.1C) 10F (-23C) 1072B 1407 -6F to +48F (-14.4C to 8.9C) +20F (-7C) 1072C 1409 +2F to +53F (-16.7C to 11.7C) +35F (2C) 1072D 1411... -
Page 19: Warranty
SIX MONTHS from date of shipment of Hygrodynamics Wide-Range Sensors and THREE MONTHS from date of shipment of Hygrodynamics Narrow-Range Sensors and repaired equipment. THIS WARRANTY IS EXPRESSLY IN LIEU OF OTHER WARRANTIES. Seller shall not be held liable for any... - Page 20 Newport Scientific, Inc newport-scientific.com P 301-498-6700 8246 Sandy Court Suite E F 301-490-2313 Jessup, MD 20794 email sales@newport- scientific.com hygrotechnical@newport-scientific.com...
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