HTA 77596 Operation Manual Download Page 11

ALARM

The meter features audible alarm to 
give warnings when CO concentration 
exceeds the limit. (See P20 in setup 
for setting alarm threshold). It emits 
beeps(Abt.80dB)when CO level goes

 

over the set value

 

and stops only when

the readings fall below the set value. It 
beeps again when value goes over the 
limit. 

To escape the memory recall mode, 
press           key to leave and return to 
normal display.

START
   ESC

  

DATA LOGGING

The meter can automatically record 
readings of CO2/CO/TEMP./RH for long 
time environment monitoring. The 
memory capacity is 32000 (#77597) or 
24000 (#77596) points. Users can set 
up sampling rate from 1 second to 4hours 
59 minutes and 59 seconds (See 
SETUP P40). 

After sampling rate is selected, press 
         for 2 seconds under normal 
mode to start logging. The         icon
flashes to indicate the logging status
and LCD main display shows the real 
time CO

2

 value. Lower displays are the 

real time clock.(Fig.19) 

START
   ESC

REC

10

MODE
RECALL

CO

Rec al l

PM

Fig.18

The time displayed in memory recall 
mode is the recording time of this 
memory.

Press        

 

key to switch the display

parameter.(Fig.18)

Summary of Contents for 77596

Page 1: ...OPERATION MANUAL PORTABLE IAQ METER Model 77597 4 in 1 77596 3 in 1...

Page 2: ...classrooms factories hospitals and hotels It is also suggested in regulations of industrial hygiene in some countries Appendix The portable CO meter uses NDIR non 2 dispersive infrared technology to e...

Page 3: ...ions included Mini USB to PC download function for analysis 99 points manually recording 32000 24000 points auto recording Review 99 points manual record Hold function freezes current readings Housing...

Page 4: ...e they are in correct polarity and good contact will appear on the LCD atter When an adaptor is used it will cut off the power supply from batteries The adaptor can t be used as a battery charger When...

Page 5: ...heit of temp CAL In calibration status REC In manual automatic logging RECALL In manual records recall mode CO2 CO Temp reading LowerLCD Real time display CO2 Carbon dioxide reading CO Carbon monoxide...

Page 6: ...rent CO and real time 2 displayed Fig 3 The real time display date and time in turns Suggest to wait for 30 seconds warm up time For quick start you may press for 2 seconds to end the warm up and ente...

Page 7: ...on main display Fig 4 The lower display shows the real time clock CO2 Carbon Dioxide MODE RECALL CO2 AM Fig 4 Press to switch the mode to CO User can get the CO reading in ppm unit on main display Fi...

Page 8: ...Under normal mode press to see the minimum maximum STEL TWA and current value in turns Each press of it displays MIN MAX STEL TWA current value in sequence Fig 10 12 To return to normal mode press key...

Page 9: ...N CO2 CO2 CO2 AM Fig 10 Fig 11 Fig 12 Fig 13 8 TWA TWA In this mode press to switch the displayed parameters Fig 14 The dispalyed sequence in this mode is min max STEL TWA current min max Press key ca...

Page 10: ...or to scroll the memories The memory serial number displays on main LCD fist and reading comes after Fig 16 17 MODE RECALL Recall Rec all CO2 Rec allPM HOLD MEM Fig 16 Fig 17 MANUALLY RECORDING The me...

Page 11: ...lly record readings of CO2 CO TEMP RH for long time environment monitoring The memory capacity is 32000 77597 or 24000 77596 points Users can set up sampling rate from 1 second to 4hours 59 minutes an...

Page 12: ...sabled during logging START ESC REC START ESC MODE RECALL The meter turns off automatically after 20 minutes of inactivity To override the function hold down and for 2 seconds to turn on the meter unt...

Page 13: ...X M AVG Fig 22 Press to escape and return to P10 START ESC When entering setup mode P20 and ALAr Fig 23 are displayed on LCD Press to go into P21 for setting CO alarm threshold The current set value...

Page 14: ...0 START ESC Fig 27 Fig 28 Fig 26 TA O O C C TA Go into P40 for setting sampling rate of data logging Fig 27 The range is from 1 second to 4 hours 59 minutes and 59 seconds Press and it goes into setti...

Page 15: ...return to P50 START ESC Fig 31 Fig 32 Fig 30 Go into P60 for setting the real time clock of this meter Press and it goes into P61to set the time format as 12hour or 24 hour The current set will flash...

Page 16: ...ously for 3 seconds to turn on the meter and enter calibration mode Fig 33 Three calibration menu is available Humidity CO CO2 Press key to select the CO2 calibration 400ppm and icon are blinking on t...

Page 17: ...time The meter defaults to be calibrated the humidity with 33 and 75 salt solution The ambient condition is recommended o to be at 25 C and stable humidity better to be close to the calibrating value...

Page 18: ...hen the accuracy becomes a concern after a long time usage return to dealers for standard calibration It is necessary to have standard CO gas for calibration Place the meter in the calibration site Fi...

Page 19: ...seconds and try again Check whether batteries are in good contact and correct polarity or the adaptor is well plugged You may also take off the batteries for 10 mins and then put back again Open the b...

Page 20: ...into the socket at the right side of the meter and the other port to PC Then install the software in your PC with the following procedure 1 Insert the CD Rom and run installation Select a preferred d...

Page 21: ...Port information at the bottom of the main screen as well as the COMPort setting column Logger Settings To set up logging plan click Setting icon and select Logger The setting page is opened Users can...

Page 22: ...middle In the Graph display the Y axis indicates Temp RH DP WBT CO2 CO level in different line colors And the X axis can be switched to show Time or Recorded No Stamp Data Review Function The followi...

Page 23: ...of the main screen Redraw After any review and zooming on the Graph click Redraw to reset it to original format Clear Click Clear to delete all data and Graph on the window A warning box shows up for...

Page 24: ...0 W x56 H 20 to 50 C CO2 sensor 0 to 50 C CO sensor 20 to 60 C for the rest parameters o 20 60 C 10 90 RH avoid condensation AA x 4pcs or 9V adaptor 200g Meter manual AA bat USB cable CD carry case 77...

Page 25: ...ted 1000 ppm indicates inadequate ventilation complaints such as headaches fatigue and eye throat irritation will be more widespread 1000 ppm should be used as an upper limit for indoor levels Non Enf...

Page 26: ...Maximum concentration for continuous exposure in any 8 hrs average level per OSHA standards 100 Remove employees from enclosed space if the CO concentration exceeds 100ppm per OSHA exposure limit 400...

Page 27: ...OTHER RELATED PRODUCTS Authorization must be obtained from the supplier before returning items for any reason When requiring a RA Return Authorization please include data regarding the defective reas...

Page 28: ...emometer Sound Level Meter Air Flow meter Infrared Thermometer K type Thermometer K J T type Thermometer K J T R S E type Thermometer pH Meter Conductivity Meter T D S Meter D O Meter Saccharimeter Ma...

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