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TWL-1S 

Heat Stress Meter 

User Guide

SCARLET  TECH

Содержание TWL-1S

Страница 1: ... TWL 1S Heat Stress Meter User Guide SCARLET TECH ...

Страница 2: ... Data Logger 9 Step1 Configuration 9 Step2 Data logging 9 Step3 Download data 9 Calibration 10 Accessory 11 Polypropylene filter 11 USB cable 11 Pager optional 11 Technical Specification 12 Instrument 12 Wireless paging optional 13 Standard 13 Thermal Work Limit TWL 13 Safety Handling Maintenance 14 Important safety information 14 Important handling information 14 Standard packing 14 Warranty Serv...

Страница 3: ...c rate It is designed primarily for self paced workers who are well hydrated and acclimatized in the working condition Instrument TWL 1S Heat Stress Meter offers a compact designed hardware with deliberate software and user friendly interface 3 color backlight based onTWL index informs users the risk level Work break timer reminds users the work rest schedule and actively notifies the remote pager...

Страница 4: ... sphere to measure the radiative heat comes from heat source like sunlight or oven AnemometerWind cups and high quality bearing make the anemometer very effective Starting wind speed is as low as 0 5 m s Wind cups detect wind strength at all times regardless of the orientation and position of the instrument Buttons The functionality of theTWL 1S is controlled by the buttons in the front panel 4 Ic...

Страница 5: ...e Wet bulb temperature Calculated from dry bulb temperature and rh Globe temperature Wind speed Relative humidity Wet Bulb Globe Temperature WBGT 0 7 x WET 0 2 x GLB 0 1 x DRY Thermal Work Limit TWL is calculated according to evidence based medicine High risk indication Displayed when TWL 115 Medium risk indication Displayed when 115 TWL 140 Low risk indication Displayed when TWL 140 Very low risk...

Страница 6: ...the ground for proper placement Press MODE key to toggle among 7 modes Press TWL key to calculate aTWL value Pager setup optional 2 Insert 1 AA battery into the battery holder with proper orientation The pager beeps once when it is ready Please contact sales representative for wireless paging function 2 6 NOTE Expose the meter to the environment at least 10 min to reach equilibrium for any signifi...

Страница 7: ...ion is only triggered by pressing TWL button TWL Before any measurement theTWL mode shows W m2 Trigger a measurement Press TWL button to calculate aTWL value It takes 2 min to compute aTWL value because 2 min average is more representative than a snapshot Check out the screenWhen calculating aTWL value the screen shows average wind speed from the 1st second to current moment When calculating TWL i...

Страница 8: ...age varies with topology PagerWhen triggered byTWL 1S the pager beeps and vibrates Press the side button to stop Both red zone and the expiration of work timer trigger the pager 3 times with 1min interval Battery Alkaline batteries can sustain more than 120 hours when operated continuously Dry batteries and rechargeable batteries are also applicable but with shorter lifetime Download data when the...

Страница 9: ...TWL 1s is ready for data logging Step2 Data logging Long press MODE key to turn on data logging mode and the meter displays SUrE Press MODE key if you agree to enter the data logging mode Press TIMER key if you do NOT agree to enter the data logging mode When the screen shows rEC the device is collecting and recording data Idle means no data are recorded Long press TIMER key to quit data logging m...

Страница 10: ...ct the sales representatives for RH calibration kit instruction and services Temperature sensors dry air and globe bulb typically do not require recalibration because the calibration drift is negligible during the product lifetime Wind speed is calibrated against an intermediary standard calibrated under MEASNET cup anemometer calibration procedure before it leaves the factory However we recommend...

Страница 11: ...PP filter every 2 6 months depending on the usage condition Please contact the sales representatives if you wish to change the filter USB cable A mini B to standard A USB cable is in the standard package to connect the device and PC or laptop for configuring instrument and downloading data More details are in the section Data Logger Pager optional Please contact sales representative for wireless p...

Страница 12: ...tion Dynamic calculation based on Tw Tg Ta and ws Safe max Tcore 38 2 C Display 32 W x 50 H mm LCD screen Backlight Yes Color depends on TWL measurement Power supply 4x AAA batteries supply 6V Power consumption 6 mA with backlight off Battery indicator Yes Battery life 120 hr with alkaline batteries Dimension 59 W x 37 D x 316 H mm Globe bulb 75 mm diameter Wind cup 91 mm rotation radius Weight 33...

Страница 13: ...nt is certified by CE mark following the EN 61326 1 2006 Electrical Equipment for Measurement Control and Laboratory Use SGS test report A third party certification for its temperature and humidity sensors from SGS a globally renowned company for inspection verification testing and certification Thermal Work Limit TWL 13 Pager frequency 433 MHz Pager dimension 51 L x 74 W x 28 H mm Pager weight 76...

Страница 14: ...handling information Do not twist black ball The neck part of the instrument will be damaged if one twist the black ball Battery replacement Low battery icon showed on LCD indicates users to replace batteries Turn off the instrument Remove the battery cap Insert new batteries and then put the cap back Process the waste batteries accordingly Standard packing Heat Stress Meter x1 User guide x1 Tripo...

Страница 15: ... improper use including adaptation to particular applications not foreseen in the instructions manual or improper combination with incompatible accessories or equipment Repairs made necessary by improper shipping material causing damages in transit Repairs made necessary by previous attempts for repair carried out by non skilled or unauthorized personnel Instruments for whatever reason modified by...

Страница 16: ...Scarlet Tech Co Ltd 2015 Scarlet Tech Co Ltd All rights reserved 4F 3 No 347 HePing E Rd 2nd Sec DaAn District Taipei City 106 Taiwan E mail info scarlet com tw http www scarlet com tw ...

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