Summary of Contents for Etymotic Research ER-200
- Page 1 E T Y M O T I C R E S E A R C H I N C . Personal Noise Dosimeter ER-200 User Guide Firmware Version 6.1...
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Page 2: Table Of Contents
TABLE OF CONTENTS Introduction ....................4 General Description..................4 Getting Started Package Contents ..................5 Identification of Parts ................5 Battery Insertion ..................5 Windscreen ....................5 Operating Instructions ................6-7 Normal Mode ....................6 Interpreting Results—Normal Mode ............6 Quick Check ....................7 Interpreting Results—Quick Check ............7 Reading the Display ..................8 What the LEDs Mean ..................8 Rate ......................8 What Dose % Means ................8... -
Page 3: Introduction
General Description The ER-200 Personal Noise Dosimeter complies with most but not all of the requirements of a Type-2 Noise Dosimeter [ANSI S1.25-1991(R2002) ]. It is an inexpensive, easy-to-use screening device that provides a good estima te of noise dose and alerts the user to the risk of over exposure. -
Page 4: Getting Started
Back Battery compartment Windscreen For accurate measurements, the 35 mm (1.4") windscreen included with the ER-200 should be used when noise is measured outdoors or near any turbulence, e.g., from a fan. The foam windscreen allows accurate measurement in winds up to 15 to 20 mph. Note: Blowing across the microphone opening on the dosimeter can cause the same turbulence as a 50 mph wind. -
Page 5: Operating Instructions
Operating Instructions Note: Use the foam windscreen when measurements are made outdoors. Do not blow into the microphone opening because incorrect noise dose readings will result. Normal Mode (Daily Dose) Test Time: Up to 16 hours Power ON: • Press and release the power button. The red 3200% LED is stead y, followed by one LED sweep. -
Page 6: Quick Check
Operating Instructions (continued) Quick Check (Estimated Hourly Dose) Test Time: 2 minutes Note: Use the foam windscreen when measurements are made outdoors. Do not blow into the microphone opening because incorrect noise dose readings will result. Power ON: • Press and hold the power button for 5 seconds . The red 3200% LED is steady, followed by several LED sweeps. -
Page 7: Reading The Display
Reading the Display What the LEDs Mean The dosimeter uses color-coded LEDs to display noise dose in percent. Green (Safe): Noise dose is below 100% Yellow (Borderline): Noise dose is greater than 100% and less than 200% Red (High Risk): Noise dose is greater than 200% Rate A slow flashing LED at 25% means that the noise dose is a t or below 25% (i.e., between 0% and 25%). -
Page 8: Auto Shut Off
Low Battery Indicator The ER-200 measures battery strength each time the dosimeter is po wered ON. If batteries are weak, a pair of lights flashes for 3 seconds. At the first low-battery alert, there is typically enough ba ttery power remaining to measure a 16-hour day’s dose. -
Page 9: Calibration
PC interface software and other specialized equipment. Specifications The default settings used by the ER-200 for calcula tion of noise dose are consistent with ANSI S1.25–1991 (R2002) Specification for Personal Noise Dosimeters. Calibration Accuracy: + – 2 dB... -
Page 10: Care And Maintenance
• Clean with a soft dr y cloth. Warranty Etymotic Research, Inc. warrants this product against defects in material or workmanship for a period of one year from the da te of original purchase. Etymotic will repair or replace the defective product a t its option if returned within the warranty period to our ser vice facility. - Page 11 E E T T Y Y M M O O T T I I C C R R E E S S E E A A R R C C H H I I N N C C . . 6 6 1 1 M M a a r r t t i i n n L L a a n n e e , , E E l l k k G G r r o o v v e e V V i i l l l l a a g g e e , , I I l l l l i i n n o o i i s s 6 6 0 0 0 0 0 0 7 7 w w w w w w .
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