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Triplett GSM450, User Manual

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Triplett GSM450 User Manual Download Page 14

 
 

2.

 

Short press the MXMN/AV/

 button to advance to set the 

sampling rate for datalogging. The hour digit will blink in the 
secondary display. 

3.

 

Short press the H/

 button to increase the time or short 

press the MEM/

 button to decrease the time. 

4.

 

Short press the MXMN/AV/

 button to save the setting 

and advance to the minute setup. 

5.

 

Short press the H/

 button to increase the time or short 

press the MEM/

 button to decrease the time. 

6.

 

Short press the 

 button to save the setting and 

advance to the second setup. 

7.

 

Short press the M

 button to save the settings and 

return to P40. 
8.

 

Short press the 

 button to exit without saving. 

9.

 

Short press the 

 button to advance to the next step. 

 

Note: The datalogging sampling range is from 1 second to 4 hours 59 
minutes 59 seconds. 
 

P50 Changing the Barometric Pressure Compensation 

1.

 

When in pressure setup mode, P50 and “PrES” display on the 
LCD. Short press the H/

 button to advance to P50 if 

necessary. 

 

2.

 

Short press the MXMN/AV/

 button to set the pressure 

compensation value for the CO

2

 measurement. The current 

pressure compensation value in hPa will flash on the LCD. 

3.

 

Short press the H/

 or MEM/

 button to adjust the 

barometric pressure value. The pressure compensation 
range is from 70 to 199 hPA. 

 

4.

 

Short press the MXMN/AV/

 button to save the setting and 

return to P50. 

 

5.

 

Short press the 

/ESC button to exit without saving. 

6.

 

Short press the H/

 button to advance to the next step. 

 

Summary of Contents for GSM450

Page 1: ... The GSM450 measures CO2 Carbon Dioxide levels CO Carbon Monoxide levels air temperature and relative humidity The GSM450 also displays dew point and wet bulb temperatures generated from calculations performed on temperature and humidity measurements The GSM450 is an ideal instrument for indoor air quality IAQ analysi ...

Page 2: ...ements 2 The GSM450 Carbon Monoxide Monitor has not been tested by an independent lab to comply with the UL 2034 or IAS 6 96 standard 3 It is the responsibility of the customer to obtain and apply current local state and national regulations with regard to CO alarms monitoring and testing 4 Electromagnetic EMI interference my cause erratic meter readings do not place meter near areas of high EMI w...

Page 3: ...evel in any 8 hour period according to OSHA 200 PPM Mild headache fatigue nausea and dizziness after 2 3 hours 400 PPM Frontal headache with 1 2 hours life threatening after 3 hours 800 PPM Dizziness nausea convulsions within 45 minutes Unconsciousness within 2 hours DEATH WITHIN 2 TO 3 HOURS 1600 PPM Headache dizziness nausea within 20 minutes DEATH WITHIN 1 HOUR 3200 PPM Headache dizziness nause...

Page 4: ...5000ppm EPA Taiwan Type 1 Indoor areas such as department stores theaters restaurants libraries have acceptable CO2 concentration of 1000ppm over an 8 hour average period EPA Taiwan Type 2 Indoor areas with special requirements for good air quality such as schools hospitals and day care centers have suggested CO2 level of 600ppm Description METER 1 Temperature and Humidity sensor 2 Primary display...

Page 5: ...nutes weighted average HOLD Freezes current reading on display MIN MAX Minimum Maximum readings Low battery indicator DP Dew point temperature TA Air temperature WBT Wet bulb temperature RH Relative humidity C or F Celsius Fahrenheit CAL Calibration Mode REC Manual automatic data logging RECALL View manually logged data ...

Page 6: ...teries into the rear battery compartment observing correct polarity 3 When the adaptor is used the batteries are disconnected from the meter circuitry The adaptor cannot be used to charge rechargeable batteries 4 When battery voltage is low the battery symbol appears Replace the batteries promptly Never dispose of used batteries or rechargeable batteries in household waste As consumers users are l...

Page 7: ...ensor responds every 1 second If the operating environment changes example from high to low temperature it requires 30 seconds for the CO2 sensor to respond and up to 30 minutes for the relative humidity sensor to respond Measuring Carbon Dioxide CO2 4 Short press the M REL button to change the mode to CO2 if necessary 5 To take a measurement trace the GSM450 around the area of the suspected leak ...

Page 8: ... Calculating Dew point and Wet bulb 1 Short press the M REL button to change the mode to air dew point or wet bulb temperature 2 To take a measurement trace the GSM450 in the testing area 3 The primary display indicates the air temperature dew point or wet bulb temperature depending on the selected mode The secondary display indicates the current date and time alternately 4 Note that Dew Point and...

Page 9: ...n to view the minimum maximum weighted average and current readings With each short press of the MXMN AV button the meter displays the MIN MAX STEL TWA or current value along with elapsed timer in sequence Short press the ESC button to return to normal operating mode In MIN and MAX modes the meter shows the lowest minimum or highest maximum reading in the primary display In STEL and TWA modes the ...

Page 10: ...L will function only in CO2 mode 6 The unit of measure can be changed while in Min Max mode Manual Data Recording The GSM450 has 99 memory locations for which to store readings one at a time 1 While in normal operating mode or hold mode short press the MEM button to store a reading The REC icon flashes on the display for approximately 3 seconds The primary display briefly shows the memory location...

Page 11: ...button Automatic Datalogging The GSM450 automatically records CO2 CO Temperature or RH readings and can store up to 32 000 records The sample rate can be set from 1 second to 4 hours 59 minutes and 59 seconds See Setup Mode for information on setting the sample rate 1 After the sample rate is selected long press the ESC button to begin logging The rec icon flashes and the primary display shows the...

Page 12: ...onal while in calibration mode Setup Mode While the meter is OFF long press the SET button to enter the setup mode To exit the setup mode short press the ESC button at any time during setup P10 Clearing the Manual Recording Memory Clearing the memory will erase ALL the manually stored records 1 Upon entering setup mode P10 and CLr display on the LCD 2 Short press the MXMN AV button to advance to P...

Page 13: ...aving 6 Short press the H button to advance to the next step P30 Changing the Temperature Units 1 When in temperature setup mode P30 and unit display on the LCD Short press the H button to advance to P30 if necessary 2 Short press the MXMN AV button to advance to P31 and change the temperature units The current temperature unit displays on the LCD 3 Short press the H or MEM button to toggle betwee...

Page 14: ...t without saving 9 Short press the button to advance to the next step Note The datalogging sampling range is from 1 second to 4 hours 59 minutes 59 seconds P50 Changing the Barometric Pressure Compensation 1 When in pressure setup mode P50 and PrES display on the LCD Short press the H button to advance to P50 if necessary 2 Short press the MXMN AV button to set the pressure compensation value for ...

Page 15: ...ess the MXMN AV button to save the setting and advance to the month setup 7 Short press the H or MEM button to change the value 8 Short press the MXMN AV button to save the setting and advance to the next step 9 Repeat the above steps to complete the setup for the month day hour minute second settings 10 Short press the MXMN AV button to save the selection and return to P60 11 Short press the ESC ...

Page 16: ...e 2 Long press the MXMN AV button to enter 75 calibration 3 CAL and current value 75 3 if at 25 C will blink on the LCD 4 The meter is now calibrating The calibration is complete in about 60 minutes The values will stop flashing and the meter powers OFF automatically when calibration is complete 5 To abort the calibration power OFF the meter at any time PC Interface This meter has the capability t...

Page 17: ... display Check to see if data hold function is activated Press hold to deactivate Display Slow Response Check for air flow blockage to sensors E01 E33 CO2 sensor is not working Replace the battery E02 Measurement is below the range of the meter Check readings in a different area E03 Measurement is above the range of the meter Check readings in a different area E04 Data error Contact Extech for ser...

Page 18: ...h for service E33 Measurement circuit failure Contact Extech for service Maintenance CLEANING AND STORAGE 1 Clean the meter with a damp cloth and mild detergent when necessary Do not use solvents or abrasives 2 Store the meter in an area with moderate temperature and humidity refer to the operating and storage temperature ranges in the specifications section ...

Page 19: ...1 0 6 C 5 to 140 F 0 1 0 9 F Humidity 0 1 to 99 9 0 1 RH 3 10 to 90 25 C 5 all other ranges 25 C Wet Bulb 5 to 59 9 C 0 1 23 to 140 F Calculated from RH and Dew Point 20 to 59 9 C 0 1 Temperature 4 to 140 F Display LCD with backlight Display size 26 x 44 mm 1 0 x 1 7 Warm up period 30 seconds Response Time CO2 30 seconds 90 step change CO 60 seconds 90 step change Tair 2 minutes 90 step change RH ...

Page 20: ...ods for use Triplett warrants to the original purchaser for use that the products sold by it will be free from defects in workmanship and material for a period of 1 one year from the date of purchase This warranty does not apply to any of our products which have been repaired or altered by unauthorized persons in any way or purchased from unauthorized distributors so as in our sole judgment to inj...

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