Quest Technologies M-27 Скачать руководство пользователя страница 13

Parallel Printers 

 

Check printer manual to set up printer. If switches are changed it may be necessary to reset the 

printer. 

 

Check interconnecting cable to assure it is the proper cable. 

 

Set the internal switches in the M-27 to agree with the printer. It is not necessary to reset the M-27 

if switches are changed. 

 

Connections to Printer 

 

 

1.  Make sure printer is set up to agree with M-27. 

 

 

2.  Connect printer cable to printer. 

 

 

3.  Turn on printer. 

 

5.  Connect printer cable to M-27. Cable goes toward top of M-27 with red strip in middle of 

unit. 

 

After data is accumulated, a printer is connected to the M-27 and the stored data is printed (see 

Figure 9). The printer may be used while the M-27 is still gathering data to obtain intermediate results. No 
data is lost in either unit until the unit is reset. 

 

All the data may be printed, or only selected data if desired. It is possible to change the printout in 

the middle to obtain, for instance, a 10-minute histogram for part of the time and a 1-minute histogram for 
another. 

 

The M-27 remembers previous PRINT keystrokes and will print only that data unless the 

keystroke has been cleared. 

 

Sample Printouts 

 

Heading

 

 

A heading is printed when PRINT is pressed. It allows the user to write in identification data (see 

Figure 10).

 

 

Summary 

 

The summary data includes parameter data of how the M-27 is set up and a summary of all the M-

27 functions (see Figure 11). 

 

 

 
Events 

 

The event data is printed for events with data. It includes start time, run time, peak and max levels 

as well as accumulated data for all three dosimeters (see Figure 12).

  

 

 

 
Histograms 

 

Three separate histograms are computed as the data is accumulated with the appropriate exchange 

rate and excluding data less than the threshold. Each minute an integrated average level is computed and 
stored (see Figure 13). 

 

For example, in the following histogram

 

 

 

Содержание M-27

Страница 1: ...Microphone Replacement 18 Calibration and Maintenance 18 Daily Calibration 18 Altitude Corrections 19 OPERATING PROCEDURE 19 As a Personal Noise Dosimeter 19 As an Area Monitor 20 As a Survey or Event...

Страница 2: ...r is encouraged to try to correct the interference by one or more of the following measures Reorient or relocate the receiving antenna Increase the separation between the equipment and receiver Connec...

Страница 3: ...75 80 85 or 90 dB 2 ranges of 35 126 or 50 146 dB A or C frequency weighting Fast or slow time constant Upper limits of 90 115 or 140 dB 12 or 24 hour clocks 8 different unit numbers Text graph or bot...

Страница 4: ...IME data If the total time is less than 30 minutes the co lon will blink if the key is held down and the time shown is in minutes and seconds If the colon stays on the time shown is in hours and minut...

Страница 5: ...n it should be rechecked PAUSE Resets the calibration level Hold key down until the RESET display shows CAL Using a Printer The printout Figure 2 can include a heading a summary of the data event data...

Страница 6: ...hing printers or computers without destroying data See Printer Setup page 32 NOTE Internal switches 1 and 2 are read only when the unit is RESET SPECIFICATIONS Standards ANSI S1 4 1983 type 2 ANSI S1...

Страница 7: ...ing the unit off will not destroy the internal memory A water and dust resistant cover protects the unit from the elements and against tampering The unit is small enough to be placed in a shirt pocket...

Страница 8: ...e The same as the pause mode except the data necessary to compute Lavg Leq Dose TWA SEL Peak Max Run Time Upper Limit as well as Event data is accumulated Compute Mode If a key has been pressed in the...

Страница 9: ...y Test Press any key If the battery is low LOB AT will be displayed in the upper left corner of the display If the battery has at least 8 hours life LOBAT will be off If LOBAT is displayed after a day...

Страница 10: ...the microphone Carefully insert the microphone in the microphone adaptor and place the adaptor in the calibrator Make sure the microphone is inserted all the way in the adaptor and the adaptor rests...

Страница 11: ...ck of unit and clip microphone to the microphone bracket The microphone clip may be removed and the microphone screwed to the bracket before the bracket is mounted to the case see Figure 7 3 Mount the...

Страница 12: ...nstrument the microphone should be mounted on the MB 1 microphone bracket see Figure 7 It may either be clipped to the bracket or the clip removed and the microphone screwed to the bracket The bracket...

Страница 13: ...d or only selected data if desired It is possible to change the printout in the middle to obtain for instance a 10 minute histogram for part of the time and a 1 minute histogram for another The M 27 r...

Страница 14: ...hange the time base on the histogram in the middle of a printout see Figure 14 for example and page 31 for details If only TEXT was selected on the internal switches the graph portion would be omitted...

Страница 15: ...ributions two with a Time constant and two without If the M 27 is used for community or 3 dB industrial monitoring the printout will contain much more information than would a data logger with a singl...

Страница 16: ...han 25 feet long and may be more than is needed If only the data for hearing conservation is required press CODE HL3 until the LTL annunciator is displayed Pressing PRINT will reduce the data by one h...

Страница 17: ...ally ON graph and text Positions 5 and 6 control the last 2 characters line Most printers work with both ON Positions 7 and 8 are undefined for parallel Computer Connections The M 27 can send its data...

Страница 18: ...dB a low threshold level of 80 dB 115 dB upper limit level A frequency weighting the 50 dB to 146 dB range a SLOW time constant and a 12 hour clock If the display is a 3 digit code then the first num...

Страница 19: ...Off On 4 dB On Off 5 dB On On 6 dB SWITCH 2 Positions 1 2 3 4 HTL LTL Off Off Off Off 70 dB none Off Off Off On 70 dB none Off Off On Off 75 dB none Off Off On On 80 dB none Off On Off Off 85 dB none...

Страница 20: ...code in the first digit column in Table 2 The clock is 12 hours The 0 means the time constant of weighting is A the range is 50 146 the upper limit is 115 dB and the time constant is Slow The first E...

Страница 21: ...e changed when the unit is operating the change will be ignored Switch 3 is read at the start of a printout It may be changed to allow printouts to different printers or computers without destroying t...

Страница 22: ...TL Dose and TWA If Run Time is less than eight hours TWA is less than Lavg if Run Time is more than eight hours TWA is greater than Lavg The SEL is greater than Leq The 3 dB Dose is greater than the L...

Страница 23: ...ple Estimating TWA from Lavg A short term sample can be used to estimate worker exposure even if the workday is other than eight hours by adding or subtracting a correction factor from the Lavg readin...

Страница 24: ...rion level Peak noise levels greater than the range of the instrument are clipped and act as if they were at the maximum level of either 146 dB on the 50 dB range or 126 dB on the 30 dB range Minimum...

Страница 25: ...ll for a new RA number Send it prepaid and properly packed in the original shipping carton directly to Quest Technologies 1060 Corporate Center Drive Oconomowoc WI 53066 U S A Repair or replacement wo...

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