Extech Instruments 407355 User Manual Download

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407355 Version 2.4 9/07

DIN to DB-9 Cable

PC Interface Cable and Adaptor Wiring Reference

The wiring diagrams and pin-outs for the supplied PC Interface cable is provided below:

Battery Replacement and Status Display

The 407355 is powered by four (4) ‘AAA’ 1.5V batteries and the LCD display employs a 5-
segment battery status indicator.

5-segment battery LCD status indicator

When the batteries are fully charged, all five segments of the indicator will be visible. As
the batteries discharge, the segments switch off one by one. Do not use the instrument if
all five segments have switched off.

To replace the batteries:

1. Remove the large flat-head screw from the back of the instrument. This will free the

belt clip; remove the clip.

2. The discharged 1.5V ‘AAA’ batteries will be visible behind the clip.

3. Replace the batteries observing polarity.

4. Re-assemble the clip

www.burntec.com

Summary of Contents for 407355

Page 1: ...de has a datalogging feature that can record up to 8800 readings which can be downloaded to a PC for analysis Note In DOSIMETER mode the individual measurements are NOT datalogged and cannot be recalled The built in RS 232 PC interface offers the following capabilities In SOUND LEVEL METER SLM MODE The meter can be connected to PC while taking measurements so that readings can be stored in a file ...

Page 2: ...liable for any direct indirect incidental or consequential damages Extech s total liability is limited to repair or replacement of the product The warranty set forth above is inclusive and no other warranty whether written or oral is expressed or implied CE Certification The CE mark indicates compliance to the EMC directive Safety EN 61010 1 1993 and IEC 1010 1 1990 Safety requirements for electri...

Page 3: ...se 31 5Hz to 8 kHz Response time F FAST and S SLOW selectable Datalogging capacity 8800 sets Operating Temperature 32 to 122 o F 0 to 50 o C Operating Humidity 10 to 90 RH Storage Temperature 14 to 140 o F 10 to 60 o C Storage Humidity 10 to 75 RH Battery power Four 4 1 5V AAA batteries Battery life 40 hours approx Dimensions 4 2 L x 2 4 W x 1 3 H 106 L x 60 W x 34 H mm Weight Approx 12 3 oz 350g ...

Page 4: ... in SLM mode Also used as the Left Arrow in the Programming mode CLOCK Press to view the Date and Time Also used as the Right Arrow in Programming mode MODE Press to select ELAPSED TIMER SLM dBA mode or noise survey DOSE mode Also used as the Down Arrow in the Programming mode EVENT Press to select a memory bank E1 through E5 Also used as the Up Arrow in the Programming mode 6 RS 232 PC Interface ...

Page 5: ... to start recording the measured readings The MEM icon will appear in the display To stop datalogging press the RUN key again The MEM icon will no longer be displayed on the screen To download the data to a PC refer to the PC Interface section in this manual Note If the low battery mark is flashing or Dosimeter surveys E1 through E5 have been saved in memory the datalogging function will not opera...

Page 6: ...set The 100 DOSE parameter discussed above is determined by the following equation 100 DOSE Criterion Level for 8 hours Each country has a unique Criterion Level most countries including the U S use 90dB The Criterion level is selectable 80 84 85 or 90dB Select the appropriate level per the Programming section of this manual EXCHANGE RATE ER Exchange rate is best illustrated by example refer to th...

Page 7: ...gram the meter follow these steps 1 To access the programming mode start with the 407355 power off 2 Press and hold the RESET button while turning the instrument on 3 Release the RESET button when SEP Setting Parameters appears 4 Use the left and right arrow buttons to select the desired parameter 5 Use the up and down arrow buttons to change a parameter s setting 6 Refer to the parameter display ...

Page 8: ... CAL screw on the 407355 so that the LCD display matches the calibrator output signal 94dB typically 5 Calibration should be performed before each use PC Interface Connecting the meter to the PC via the supplied interface cable Connect the 5 pin end of the supplied interface cable to the DOSE Meter Connect the 9 pin connector end of the cable to the PC COM Port Cable and adaptor wiring are detaile...

Page 9: ...scribed previously 4 Use the MAIN SOFTWARE and CONTROL PANEL windows to operate the meter view the readings and save the data file The MAIN and the CONTROL PANEL windows are described in the Software Reference section Sound Level Meter SLM Datalogging mode 1 Perform a Datalogging operation as described previously 2 After the test connect the meter to the PC 3 Run the DOSE software program 4 Click ...

Page 10: ...ram is opened two windows appear The CONTROL PANEL window is used to remotely control the meter and to remotely view the meter s readings Simply click on the meter s push buttons in the CONTROL PANEL window The MAIN SOFTWARE window has numerous functions and displays as detailed below CONTROL PANEL WINDOW www burntec com ...

Page 11: ...T and STOP RECORDING Start or Stop data recording in the currently opened file VIEW FILE Open a previously stored data file on the PC and view the contents EXIT Close the DOSE program DISPLAY This selection allows the user to view data in DATA ACQUISITION SLM MODE in LIST GRAPH ANALOG or DIGITAL formats see diagrams The CONTROL PANEL can also be opened from this menu Analog Digital Graph and List ...

Page 12: ...k The word RECORDING will appear if the meter is currently performing a noise survey Criterion Threshold Exchange and Time weighting are the settings configured by the user for a noise survey as described previously 115VdB RMS Alerts the user that the sound level reached 115dB EXCEED 140dB Alerts the user that the sound level reached 140dB START DATE and TIME Date and time when noise survey began ...

Page 13: ...erion level and Exchange rate If these fields do not automatically fill in go to the EVENTS menu item and download the EVENT register information The MEASUREMENT SUMMARY window automatically fills in when the test is stopped The RUN TIME is total test time The SPL MAX field is highest average reading taken during the course of the test The DOSE field automatically fills in the DOSE value for the t...

Page 14: ...rvey parameters for a given country Simply click on the desired country and then click the SET button It may take a minute or so for the operation to complete SET MODE The Set Mode is used to change the noise survey parameters and the Time Date see diagram Select the desired settings and press the OK button when finished It may take several minutes for the operation to complete www burntec com ...

Page 15: ...segment battery LCD status indicator When the batteries are fully charged all five segments of the indicator will be visible As the batteries discharge the segments switch off one by one Do not use the instrument if all five segments have switched off To replace the batteries 1 Remove the large flat head screw from the back of the instrument This will free the belt clip remove the clip 2 The disch...

Page 16: ...5 110 0 25 or less 115 Source 29 CFR 1910 Table G 16 Conversion from Percent Noise Exposure or Dose to 8 Hour Time Weighted Average Sound Level TWA Dose or percent TWA dBA 50 85 0 55 85 7 60 86 3 65 86 9 70 87 4 75 87 9 80 88 4 85 88 8 90 89 2 95 89 6 100 90 0 105 90 4 110 90 7 115 91 1 120 91 3 125 91 6 Note Assumes 5 dB exchange rate and 90 dBA Criterion www burntec com ...

Page 17: ...ur website www extech com Calibration and Repair Services Extech offers repair and calibration services for the products we sell Extech also provides NIST certification for most products Call the Customer Service Department for information on calibration services available for this product Extech recommends that annual calibrations be performed to verify meter performance and accuracy Copyright 20...

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