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GasWatch 3 for CO and O

2

Appendix A: Maintenance Mode • 83

Performing a Gas Test

1. While in Maintenance Mode, press AIR to scroll to

GAS.TEST

.

2. Press and release POWER/MODE. The current gas reading displays. The bottom of the

LCD alternates between “GAS.TEST” and “BUZZ.OFF”.

3. Turn the regulator knob counterclockwise to open the regulator.
4. The instrument initiates alarm indications except for the buzzer. There is no buzzer

indication in the

GAS.TEST

menu even though the buzzer sounds in the event of a real

gas alarm condition.

5. Turn the regulator knob clockwise to close the regulator.
6. Unscrew the regulator from the calibration cylinder.
7. Remove the calibration cup from the GasWatch 3.
8. Store the calibration kit in a safe and convenient place.
9. Press and release POWER/MODE to return to the

GAS.TEST

item in Maintenance

Mode.

10. See “Entering Measuring Mode (START)” on page 90 to enter Measuring Mode.

Sensor/Battery Replacement Date (SEN.DATE)

The

SEN.DATE

item allows you to keep track of when the sensor and the battery were

replaced.
1. While in Maintenance Mode, press AIR to scroll to

SEN.DATE

.

2. Press and release POWER/MODE. The sensor replacement date displays.

GAS .TEST

GAS .TEST

20.9

%

0

ppm

BUZZ .OFF

20.9

%

0

ppm

SEN .DATE

«
...
81
82
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85
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»

Содержание GasWatch 3

Страница 1: ...www rkiinstruments com GasWatch 3 for Carbon Monoxide and Oxygen Operator s Manual Part Number 71 0513 Revision P1 Released 2 13 20 ...

Страница 2: ...rrect readings Bump test the instrument before each day s use with a known concentration of each target gas A bump test can be done in User Mode s BUMP item or by applying gas in Measuring Mode The instrument does not need to be calibrated unless it does not pass the User Mode bump test or does not respond appropriately as defined by the user in Measuring Mode For more information about bump test ...

Страница 3: ...s Port 11 Battery 11 Standard Accessories 12 Alligator Clip 12 Optional Accessories 12 Watch Band 12 Calibration Cup 13 IrDA USB Cable 13 Chapter 3 Measuring Mode 14 Overview 14 Start Up 14 Turning On the GasWatch 3 14 Performing a Demand Zero 18 Turning Off the GasWatch 3 18 Measuring Mode Operation 19 Monitoring an Area 19 Alarms 20 Alarm Indications 20 Responding to Alarms 22 Data Logging 24 Ch...

Страница 4: ...e Confirmation Beep and Non Compliance Indicator BEEP 66 Updating the Backlight Time BL TIME 67 Turning the Key Tone On Off KEY TONE 68 Display Mode Items DISP SET 68 Zero Suppression ZERO SUP 69 Zero Follower ZERO FLW 69 Turning Easy Calibration On Off E CAL 69 Setting the Date Time DATE 70 Turning the Password On Off PASS W 70 Viewing the ROM SUM ROM SUM 71 Entering Measuring Mode START 72 Chapt...

Страница 5: ... Mode 91 Tips for Using Gas Select Mode 92 Saving the Alarm Points SAVE AP 92 Turning the Calibration Max Span On Off MAX SPAN 93 Stealth and Vibrator Settings STEALTH 94 Exiting Gas Select Mode START 94 WARNING Understand manual before operating This is an intrinsically safe product Substitution of components may impair intrinsic safety To prevent ignition of a hazardous atmosphere batteries must...

Страница 6: ...s for unit malfunction Microprocessor control for reliability ease of use and advanced capabilities Data logging functions Alarm trend data STEL for CO only TWA for CO only and over range alarms Peak reading Built in time function Lunch break feature CSA C US classification for Class I Division I Groups A B C and D hazardous atmospheres WARNING The Model GasWatch 3 detects elevated levels of carbo...

Страница 7: ...ampling Method Diffusion Response Time T90 Within 10 Seconds Display Graphics LCD Display Operating Temperature Humidity Continuous environment 20 C to 50 C 10 to 90 RH Temporary environment up to 15 minutes 20 C to 60 C 0 to 95 RH Indication Accuracy for Detection Range CO 5 of reading or 5 ppm CO whichever is greater O2 0 5 volume O2 Indication Accuracy for Service Range CO 20 of reading O2 3 0 ...

Страница 8: ...ours 25 C 2 000 hours in Measuring Mode Non Alarm Operation Fully Charged Case High impact Plastic RF Shielded Dust and Weather Proof IP66 68 Standard Accessories Alligator clip Optional Accessories Watch band Calibration cup Datalogging and Setup Programs Windows 7 8 and 10 available at www rkiinstruments com gw3 IrDA USB Cable for connecting to a computer when using the Datalogging and Setup Pro...

Страница 9: ...t proof and water resistant A clear plastic window is located on the front of the case for viewing the LCD The sensor retainer is located on the right side of the case and allows access to the filters and sensor LCD A digital LCD liquid crystal display is visible through a clear plastic window in the top case The LCD shows the gas reading The LCD also shows information for each of the GasWatch 3 s...

Страница 10: ...ll that consists of two precious metal electrodes in a dilute acid electrolyte A gas permeable membrane covers the sensor face and allows gas to diffuse into the electrolyte The gas reacts in the sensor and produces a current proportional to the concentration of the target gases The GasWatch 3 s circuitry amplifies the current converts the current to a gas concentration and displays the concentrat...

Страница 11: ...n be used to download data to the GasWatch 3 Datalogging Program See the GasWatch 3 Datalogging Program operator s manual for data logging and downloading instructions Battery A user replaceable CR2450 button cell battery powers the GasWatch 3 At 25 C the battery lasts at least 2 000 hours 83 days The battery icon in the upper right of the LCD shows remaining battery life A low battery warning act...

Страница 12: ...o attach the GasWatch 3 to clothing or a belt Teeth in the alligator clip s jaws prevent slipping The alligator clip can be rotated to change the instrument s orientation Optional Accessories Watch Band The adjustable watch band allows the GasWatch 3 to be worn on the wrist The watch band attaches to spring bars that are protected by hollow tubes Alligator Clip Base Clip Figure 2 Alligator Clip Fi...

Страница 13: ...ensor You must use the calibration cup when performing a bump test calibration or gas test IrDA USB Cable Unless your computer has a built in IrDA port a IrDA USB cable is needed to establish communication between the GasWatch 3 and the Datalogging Program or the Setup Program FLOW Figure 4 Calibration Cup ...

Страница 14: ...intenance Mode If any of these items are turned off then the corresponding screens do not appear 1 Press and briefly hold down POWER MODE Release the button when you hear a beep 2 If LUNCH is set to ON factory setting if OFF see pg 65 the Lunch Break Screen appears The unit counts down from 5 seconds a Continue Accumulating To continue accumulating peak and time weighted average TWA readings from ...

Страница 15: ...ll again appear in the startup sequence Option B Bypass message To continue without performing a calibration press and release AIR The GasWatch 3 cannot be used until a successful calibration is performed Press and release POWER MODE to enter User Mode and perform a calibration The instrument takes you straight to the calibration start screen in User Mode s GAS CAL A CAL E CAL item If you don t pr...

Страница 16: ...uccessful the screen above will again appear in the startup sequence Option B Bypass message To continue without performing a bump test press and release AIR The GasWatch 3 cannot be used until a successful bump test is performed Press and release POWER MODE to enter User Mode and perform a bump test The instrument takes you straight to the bump test start screen in User Mode s BUMP item If you do...

Страница 17: ... STEL Setpoint CO only and TWA Setpoint CO only 8 If ID DISP is set to ON factory setting is OFF see pg 86 the User ID Screen appears for a few seconds followed by the Station ID Screen 9 If the GasWatch 3 experiences a sensor failure during start up a screen indicating that the sensor failed appears and the buzzer sounds a double pulsing tone once per second You cannot acknowledge the failure and...

Страница 18: ...lays the current gas readings The CO reading displays on the top line and the O2 reading displays on the middle line Performing a Demand Zero Perform a demand zero before using the GasWatch 3 This sets the CO reading to 0 ppm and the O2 reading to 20 9 1 Find a fresh air environment This is an environment free of toxic or combustible gases and of normal oxygen content 20 9 2 Turn on the unit as de...

Страница 19: ...CD indicates the operation status and flashes when normal A microprocessor error causes the heart symbol to stop flashing or to disappear Check Mark If BP RMDR is set to ON and if a bump test is not due a check mark appears in the lower left corner of the LCD S If the instrument is operating in Stealth Mode an S appears at the bottom of the LCD Backlight In a low light environment press and releas...

Страница 20: ...arm condition occurs while you are in Display Mode the GasWatch 3 automatically returns to the Measuring Mode screen The table below summarizes the types of alarms produced by the GasWatch 3 and their indications Table 4 Alarm Types and Indications Alarm Type Visual Indications Other Indications Warning Concentration of gas rises above the Warning setting for CO or falls below the Warning setting ...

Страница 21: ...t the bottom of the LCD Alarm LEDs flash twice per second Backlight turns on High low tone sounds twice per second Vibrator pulses twice per second Low Battery Warning The last bar in the battery icon disappears and the battery icon starts flashing None Dead Battery Alarm Gas reading disappears FAIL BATTERY appears on the LCD Alarm LEDs flash once per second Double pulsing tone sounds once per sec...

Страница 22: ...ARNING An over range condition may indicate an extreme carbon monoxide or oxygen concentration or an explosive concentration Confirm the gas concentration with a different GasWatch 3 or with another gas detecting device AVERTISSEMENT Un dépassement de la plage peut indiquer une concentration extrême de monoxyde de carbone ou d oxygène ou une concentration d explosif Confirmez la concentration de g...

Страница 23: ...ding to Sensor Failure Alarms 1 Calibrate the sensor as described on pg 43 2 If the sensor failure continues replace the sensor as described on pg 77 3 If the sensor failure condition continues after replacing the sensor contact RKI Instruments Inc for further instructions Responding to Clock Failure Alarms A clock failure alarm occurs if the unit s internal clock malfunctions 1 Press and release ...

Страница 24: ... be download it to a computer via the infrared communications port on the front of the unit The data logging capacity depends on how often the GasWatch 3 stores data and how often the GasWatch 3 is turned on and off The table below illustrates how much data logging time is available for the various interval times It assumes that the unit is only turned on once and there are no alarms The data logg...

Страница 25: ...s 7 Windows 8 or Windows 10 IrDA port or IrDA USB cable cable available from RKI Instruments Inc GasWatch 3 Datalogging Program available at www rkiinstruments com gw3 For a complete description of the Datalogging Program and procedures for downloading data to a computer see the GasWatch 3 Datalogging Program Operator s Manual ...

Страница 26: ... Mode Menu Items Display Mode Menu Item Description PEAK pg 27 Displays the Peak reading STEL pg 27 Displays the STEL reading TWA pg 28 Displays the TWA reading USER ID pg 28 A View and or change the User ID STN ID pg 29 A View and or change the Station ID CAL DATA pg 30 B Displays the last calibration date BP DATA pg 30 C Displays the last bump test date DATE pg 31 Displays the current date and t...

Страница 27: ... 3 is turned off The lunch break feature enables the GasWatch 3 to save the peak reading when it is turned off so it can continue with the same peak when it is turned on again see pg 14 To clear the peak reading do the following 1 After entering Display Mode press and release POWER MODE until PEAK appears 2 Press and hold AIR until the screen prompts you to release it 3 The peak reading is reset a...

Страница 28: ...ISP SET in User Mode is set to ON factory setting and if ID DISP in Maintenance Mode is set to ON factory setting is OFF Use this screen to select a user ID from the 128 user IDs that are stored in the GasWatch 3 s memory Before a user ID is selected on a brand new instrument the user ID is The factory installed user IDs have a U_ID_XXX format The user ID provides a way to identify the GasWatch 3 ...

Страница 29: ...on ID is The factory installed station IDs have a S_ID_XXX format The station ID provides a way to identify the GasWatch 3 location during a data logging session User IDs can only be selected in this menu item In order to edit the 128 user IDs you must use the GasWatch 3 Datalogging Program or GasWatch 3 Setup Program 1 After entering Display Mode press and release POWER MODE until the STN ID scre...

Страница 30: ...ress AIR to enter the CAL DATA screen and switch between the channels 3 Press and release POWER MODE to return to the CAL DATA screen in Display Mode Last Successful Bump Test Date BP DATA The BP DATA screen shows the date of the last successful bump test This screen only appears if BP RMDR is set to ON factory setting is OFF 1 After entering Display Mode press and release POWER MODE until the BP ...

Страница 31: ...isplay Mode Date Time Screen DATE The DATE screen shows the instrument s date and time Temperature Screen TEMP The TEMP screen shows the surrounding area s temperature Alarm Points Screen ALARM P The Alarm Points Screen shows the gas alarm settings 1 After entering Display Mode press and release POWER MODE until the ALARM P screen sequence appears CO 1 1 2019 O2 1 15 2019 AIR 10 42 2 13 2019 TEMP ...

Страница 32: ...nly appears if DISP SET in User Mode is set to ON factory setting HI factory setting Buzzer volume is high LO Buzzer volume is low 1 While in Display Mode press and release POWER MODE until BUZZ VOL appears The current setting displays on the top line 2 Press and release AIR The current setting flashes 3 Use AIR to display the desired setting 4 Press and release POWER MODE to save the setting and ...

Страница 33: ...stment A CAL pg 44 or E CAL pg 49 depending on E CAL User Mode setting A CAL or E CAL CYL X Perform a span adjustment on the gases selected for Cylinder X A E cylinders available START Begin the warmup sequence and enter Measuring Mode CAL P Set the calibration gas concentration CYL SEL Assign a cylinder A E to each gas CO and O2 are assigned to Cylinder A by default ESCAPE Return to the A CAL ite...

Страница 34: ... matically start ESCAPE Return to the SETTING item in the BUMP SET menu BP RMDR pg 61 ON The instrument notifies the user upon startup when a bump test is due Notification type depends on BP EXPD setting below BP DATA screen appears in Display Mode OFF factory setting No notification upon startup when a bump test is due BP DATA screen does not appear in Display Mode BP INT pg 62 How often the inst...

Страница 35: ... TONE pg 68 ON factory setting Buzzer sounds when button is pressed OFF Buzzer does not sound when button is pressed DISP SET pg 68 OFF USER ID STN ID and BUZZ VOL items do not appear in Display Mode ON factory setting BUZZ VOL item appears in Display Mode USER ID and STN ID items appear if ID DISP in Maintenance Mode is also set to ON ZERO SUP pg 69 ON factory setting Not intended for field adjus...

Страница 36: ...ep 6 If PASS W is set to ON continue with Step 4 4 If PASS W is set to ON in User Mode a password screen appears and the first digit flashes The factory set password is 0405 but it can be changed 5 Use AIR to select each password number then press POWER MODE to save it and move on to the next number To go back a number press and hold AIR and POWER MODE for a few seconds To reverse the direction of...

Страница 37: ...out saving a change press and hold AIR and POWER MODE for a few seconds Performing a Bump Test BUMP Bump test the instrument before each day s use with a known concentration of each target gas The instrument does not need to be calibrated unless it does not pass the bump test To bump test the GasWatch 3 you need Calibration gas cylinder RKI Instruments recommends using 50 ppm CO in N2 0 25 LPM fix...

Страница 38: ...to scroll to the Bump screen for the gas es you want to bump test As shipped from the factory CO and O2 are both assigned to Cylinder A 8 Make sure the GasWatch 3 has been turned on for at least 45 seconds before continuing 9 Turn the regulator knob counterclockwise to open the regulator 10 Press and release POWER MODE 11 The gas reading flashes the bottom of the screen alternates between APLY and...

Страница 39: ...gure 5 Bump Test Flow Chart Bump test passed Y N A CAL On Multiple Cylinders Calibration passed Y N Y N Assigned default is on Multiple Cylinders Assigned Y N Y N set to on default is on A D F B C E G H Y N Y N Auto start after successful bump set to on default is on NOTE Auto start after successful bump cal parameters set using Datalogging or Setup Programs Auto start after successful cal ...

Страница 40: ...ugh Step 12 6 After the last cylinder is bump tested press and release POWER MODE to go to the START item in the BUMP menu 7 Remove the calibration cup 8 Press and release POWER MODE to enter Measuring Mode 1 The instrument indicates that all channels passed the bump test Use AIR to scroll between the bump test results and the bump test gas readings 2 Close the regulator 3 Unscrew the regulator 4 ...

Страница 41: ...libration The LEDs flash and the buzzer sounds Use AIR to scroll between the results and the readings 4 Close the regulator 5 Unscrew the regulator 6 Remove the calibration cup 7 Press and release POWER MODE to return to the BUMP CYLA item in the BUMP menu 8 Use AIR to scroll to START and press and release POWER MODE to enter Measuring Mode 1 A calibration immediately and automatically starts Cont...

Страница 42: ...alibration Use AIR to scroll between the results and the readings 4 Close the regulator 5 Unscrew the regulator 6 Remove the calibration cup 7 Press and release POWER MODE to enter Measuring Mode 1 A calibration immediately and automatically starts Continue to apply the calibration gas 2 The calibration time is the difference between the GAS TIME and the CAL TIME values defined in the BUMP SET SET...

Страница 43: ... item A CAL appears if E CAL User Mode item is set to OFF Apply gas for a period of time then press and release POWER MODE to perform the adjustment E CAL appears if E CAL User Mode item is set to something besides OFF As soon as gas is applied and the reading reaches 10 of the auto calibration value the instrument counts down from the number of seconds specified in the E CAL User Mode item and au...

Страница 44: ...ust the span on the GasWatch 3 you need Calibration gas cylinder RKI Instruments recommends using 50 ppm CO in N2 0 25 LPM fixed flow regulator Non absorbent tubing Calibration cup 1 Confirm that the GasWatch 3 s calibration gas values match the concentrations listed on the calibration gas cylinder as described on pg 54 2 Confirm that the regulator knob is turned all the way clockwise Screw the 0 ...

Страница 45: ...CYL A and A CAL 5 If necessary use AIR to scroll to the Auto Cal screen for the gas es you want to calibrate As shipped from the factory CO and O2 are assigned to Cylinder A 6 Make sure the GasWatch 3 has been turned on for at least 45 seconds before continuing 7 Press and release POWER MODE 8 The gas reading flashes and the bottom of the screen alternates between APPLY and A CAL NOTE To back out ...

Страница 46: ...Follow the flow chart to determine the calibration outcome Figure 6 Calibration Flow Chart Y N Multiple Cylinders Y N Assigned A B C Y N Auto start after successful cal set to on default is on D NOTE Auto start after successful cal parameter set using Datalogging or Setup Programs Calibration passed ...

Страница 47: ...w it into the next cylinder 7 Press and release POWER MODE to start the next cylinder s calibration 8 Repeat Step 9 through Step 12 9 After the last cylinder is calibrated the instrument continues to the START item in the A CAL menu 10 Remove the calibration cup 11 Press and release POWER MODE to enter Measuring Mode 1 The instrument indicates that all channels passed the calibration 2 The instrum...

Страница 48: ...m If the maximum span value is close to the calibration gas value the sensor should be replaced soon The maximum CO adjustment is either twice the calibration value or full scale whichever is lower The maximum oxygen adjustment is 25 0 volume 4 Close the regulator 5 Unscrew the regulator 6 Remove the calibration cup 7 The instrument continues to the START item in the A CAL menu 8 Press and release...

Страница 49: ...tion gas values match the concentrations listed on the calibration gas cylinder as described on pg 54 2 Confirm that the regulator knob is turned all the way clockwise Screw the 0 25 LPM fixed flow regulator onto the calibration cylinder 3 Install the calibration cup onto the GasWatch 3 The calibration cup has an indicated flow direction Be sure the calibration cup is installed in the correct dire...

Страница 50: ...ore continuing 7 Press and release POWER MODE 8 The gas readings flash and the bottom of the screen says GAS IN 9 Turn the regulator knob counterclockwise to open the regulator 10 Once the gas reading reaches 10 of the auto calibration value the screen starts counting down from the time specified in the E CAL User Mode item In the example below E CAL is set to 60 seconds To back out of the gas app...

Страница 51: ...chart to determine the calibration outcome Figure 7 Calibration Flow Chart Y N Multiple Cylinders Y N Assigned A B C Y N Auto start after successful cal set to on default is on D NOTE Auto start after successful cal parameter set using Datalogging or Setup Programs Calibration passed ...

Страница 52: ...w it into the next cylinder 7 Press and release POWER MODE to start the next cylinder s calibration 8 Repeat Step 9 through Step 12 9 After the last cylinder is calibrated the instrument continues to the START item in the E CAL menu 10 Remove the calibration cup 11 Press and release POWER MODE to enter Measuring Mode 1 The instrument indicates that all channels passed the calibration 2 The instrum...

Страница 53: ...m If the maximum span value is close to the calibration gas value the sensor should be replaced soon The maximum CO adjustment is either twice the calibration value or full scale whichever is lower The maximum oxygen adjustment is 25 0 volume 4 Close the regulator 5 Unscrew the regulator 6 Remove the calibration cup 7 The instrument continues to the START item in the E CAL menu 8 Press and release...

Страница 54: ...d release POWER MODE The AIR item appears 3 Use AIR to scroll to the A CAL item E CAL if E CAL in User Mode is set to ON 4 Press and release POWER MODE The Auto Cal screen for the gases assigned to Cylinder A displays 5 Use AIR to scroll to CAL P 6 Press and release POWER MODE The CO channel displays GAS CAL A CAL CYL A 0 0 50 ppm A CAL 0 0 50 ppm CAL P CAL P CO ppm ...

Страница 55: ... ESCAPE 12 Press and release POWER MODE to return to the CAL P item in the A CAL menu 13 Press AIR to scroll to ESCAPE 14 Press and release POWER MODE to return to the A CAL item in the GAS CAL menu 15 See Exiting the GAS CAL Menu on page 57 to return to User Mode Making Cylinder Selections in CYL SEL The CYL SEL menu item allows you to assign cylinders for calibration As shipped from the factory ...

Страница 56: ...ress and release POWER MODE The Auto Cal screen for gases assigned to Cylinder A displays 5 Use AIR to scroll to CYL SEL 6 Press and release POWER MODE CO displays 7 Use AIR to scroll to the gas whose cylinder assignment you want to change A CAL CYL A 0 0 50 ppm A CAL 0 0 50 ppm CYL SEL CYL SEL CO ppm CYL SEL CO ppm CYL SEL O2 ESCAPE AIR AIR AIR ...

Страница 57: ...rns to the CYL SEL menu item in the Auto Cal Menu 14 Press AIR to scroll to ESCAPE 15 Press and release POWER MODE The instrument returns to the A CAL menu item in the GAS CAL menu 16 See Exiting the GAS CAL Menu on page 57 to return to User Mode Exiting the GAS CAL Menu 1 While in the GAS CAL menu press AIR to scroll to ESCAPE 2 Press and release POWER MODE to return to the GAS CAL item in User M...

Страница 58: ...lease POWER MODE The current setting flashes 3 Use AIR to display the desired setting 4 Press and release POWER MODE to save the setting and return to the CAL INT item in the CAL SET menu 5 See Exiting the CAL SET Menu on page 59 to return to User Mode CAL EXPD This item defines what indication is given during start up when calibration is due and CAL RMDR is set to ON factory setting CONFIRM facto...

Страница 59: ...CAL SET Menu 1 While in the CAL SET menu press AIR to scroll to ESCAPE 2 Press and release POWER MODE to return to the CAL SET item in User Mode 3 See Entering Measuring Mode START on page 72 to enter Measuring Mode Setting Bump Test Parameters BUMP SET The BUMP SET menu has 5 items SETTING BP RMDR BP INT BP EXPD and ESCAPE 1 While in User Mode press AIR to scroll to BUMP SET 2 Press and release P...

Страница 60: ...bump test reading can differ from the auto calibration value and still be considered a passed bump test If the bump test reading differs more the bump test fails The available values are 10 20 30 40 and 50 factory setting 1 After entering the SETTING menu press AIR to scroll to CHECK 2 Press and release POWER MODE The current setting flashes 3 Use AIR to display the desired setting 4 Press and rel...

Страница 61: ...POWER MODE The current setting flashes 3 Use AIR to display the desired setting 4 Press and release POWER MODE to save the setting and return to the A CAL item in the SETTING menu 5 See Exiting the SETTING Menu on page 61 to return to BUMP SET menu Exiting the SETTING Menu 1 While in the SETTING menu press AIR to scroll to ESCAPE 2 Press and release POWER MODE to return to the SETTING item in the ...

Страница 62: ... and return to the BP INT item in the BUMP SET menu 5 See Exiting the BUMP SET Menu on page 63 to return to User Mode BP EXPD This item defines what indication is given during start up when a bump test is due and BP RMDR is set to ON factory setting is OFF CONFIRM factory setting The GasWatch 3 gives an indication at start up if a bump test is past due Press and release AIR to continue without bum...

Страница 63: ...SET menu 5 See Exiting the BUMP SET Menu on page 63 to return to User Mode Exiting the BUMP SET Menu 1 While in the BUMP SET menu press AIR to scroll to ESCAPE 2 Press and release POWER MODE to return to the BUMP SET item in User Mode 3 See Entering Measuring Mode START on page 72 to enter Measuring Mode Alarm Settings ALARM P The ALARM P menu has 3 items ALARM P DEF ALMP and ESCAPE 1 While in Use...

Страница 64: ...d release POWER MODE to save the setting 6 Repeat Step 4 and Step 5 for the Alarm Alarm H STEL and TWA settings 7 The instrument returns to the channel selection screen 8 Repeat Step 1 Step 7 to change the alarm points for the other channel 9 See ESCAPE on page 65 to return to User Mode Channel Alarm Point Limitations CO 20 ppm WARNING ALARM ALARM H 2 000 ppm O2 0 0 ALARM WARNING 20 0 21 8 ALARM H...

Страница 65: ...n the ALARM P menu press AIR to scroll to ESCAPE 2 Press and release POWER MODE to return to the ALARM P item in User Mode 3 See Entering Measuring Mode START on page 72 to enter Measuring Mode Updating the Lunch Break Setting LUNCH OFF factory setting The GasWatch 3 automatically starts new TWA and PEAK reading collection and resets the time in operation at startup ON The Lunch Break Screen displ...

Страница 66: ...rify that the instrument is operating BUZZER The GasWatch 3 s buzzer double beeps as often as defined by the BEEP INT parameter to verify that the instrument is operating LED BUZ The GasWatch 3 s LEDs double flash and the buzzer double beeps as often as defined by the BEEP INT parameter to verify that the instrument is operating BMP CAL If a bump test or a calibration is due and if BP EXPD or CAL ...

Страница 67: ...tting 4 Press and release POWER MODE to save the setting and return to the BEEP INT item in the BEEP menu 5 See ESCAPE on page 67 to return to User Mode ESCAPE 1 While in the BEEP menu press AIR to scroll to ESCAPE 2 Press and release POWER MODE to return to the BEEP item in User Mode 3 See Entering Measuring Mode START on page 72 to enter Measuring Mode Updating the Backlight Time BL TIME This se...

Страница 68: ...Entering Measuring Mode START on page 72 to enter Measuring Mode Display Mode Items DISP SET OFF USER ID STN ID and BUZZ VOL screens do not appear in Display Mode ON factory setting BUZZ VOL screen appears in Display Mode USER ID and STN ID screens appear in Display Mode if ID DISP in Maintenance Mode is also set to ON factory setting is OFF 1 While in User Mode press AIR to scroll to DISP SET 2 P...

Страница 69: ... functionality Turning Easy Calibration On Off E CAL OFF factory setting Auto Calibration A CAL item appears in GAS CAL menu instead of Easy Calibration E CAL XX seconds Easy Calibration E CAL item appears in GAS CAL menu instead of Auto Calibration A CAL During a calibration the instrument counts down from the number of seconds you select 1 While in User Mode press AIR to scroll to E CAL 2 Press ...

Страница 70: ...eturns to the DATE item in User Mode 6 See Entering Measuring Mode START on page 72 to enter Measuring Mode Turning the Password On Off PASS W ON The GasWatch 3 prompts you for a password when you enter User Mode The factory set password is 0405 but it can be changed OFF factory setting No password is required to enter User Mode 1 While in User Mode press AIR to scroll to PASS W 2 Press and releas...

Страница 71: ...er the last number the password is saved and the instrument returns to the PASS W item in User Mode 9 See Entering Measuring Mode START on page 72 to enter Measuring Mode Viewing the ROM SUM ROM SUM The ROM SUM screen shows the instrument s firmware version and firmware checksum 1 While in User Mode press AIR to scroll to ROM SUM 2 Press and release POWER MODE The screen cycles through the main bo...

Страница 72: ... 5 User Mode and Calibration GasWatch 3 for CO and O2 Entering Measuring Mode START 1 While in User Mode press AIR to scroll to START 2 Press and release POWER MODE The instrument begins its warmup sequence START ...

Страница 73: ...table describes error messages symptoms probable causes and recommended action for problems you may encounter with the GasWatch 3 Table 9 Troubleshooting the GasWatch 3 Symptoms Probable Causes Recommended Action The LCD is blank The unit got turned off The battery is inserted backwards The battery needs to be replaced The battery cover may not be completely closed 1 To turn on the unit press and ...

Страница 74: ...entration The sample gas is not reaching the sensor because of a bad connection The calibration cylinder is out of gas or is outdated The sensor needs replacement 1 Make sure the GasWatch 3 has been properly set up for calibration 2 Check all calibration tubing for leaks or for any bad connections 3 Verify that the calibration cylinder contains an adequate supply of fresh test sample 4 If the fail...

Страница 75: ...n Set the date and time as described on pg 70 Once the date and time are set the instrument begins its warmup sequence If you do not set the date and time within 30 seconds the instrument automatically begins its warmup sequence Replacing the Charcoal Filter 1 Verify that the GasWatch 3 is off 2 Use a small Phillips screwdriver to unscrew the sensor retainer s screw 3 Remove the sensor retainer 4 ...

Страница 76: ...h 3 is off 2 Use a small Phillips screwdriver to unscrew the sensor retainer s screw 3 Remove the sensor retainer 4 The hydrophobic filter and the sensor gasket should stay on the sensor 5 Remove the old hydrophobic filter 6 Install the new hydrophobic filter It should be seated and recessed in the sensor gasket and should not overlap the edge of the sensor gasket Hydrophobic Filter White Sensor R...

Страница 77: ...at the new sensor s orientation slots are aligned correctly Do not force the sensor into its slot 7 Reinstall the sensor gasket Be sure to orient it as shown in Figure 13 above 8 Reinstall the charcoal filter It should be seated and recessed in the center of the sensor gasket 9 Reinstall the hydrophobic filter It should be seated and recessed in the sensor gasket and should not overlap the edge of...

Страница 78: ...for 47 5084RK USB IrDA adapter module 71 0513 Operator s Manual GasWatch 3 for CO this document 71 0514 Operator s Manual GasWatch 3 Datalogging Program 71 0515 Operator s Manual GasWatch 3 Setup Program 81 0062RK 01 Calibration cylinder 50 ppm CO in N2 34 liter steel 81 0062RK 03 Calibration cylinder 50 ppm CO in N2 103 liter 81 0076RK 01 Calibration cylinder zero air 34 liter steel 81 0076RK 03 ...

Страница 79: ...ign a cylinder A E to each gas CO and O2 are assigned to Cylinder A by default ESCAPE Return to the A CAL item in the GAS CAL menu ESCAPE Return to the GAS CAL item in Maintenance Mode GAS TEST pg 82 Apply gas to test sensor response and observe alarm indications without an alarm event being recorded SEN DATE pg 83 View and or set the replacement date for the sensor and the battery BUMP pg 84 Perf...

Страница 80: ...SUP DSP pg 86 ON Zero suppression item appears in User Mode OFF factory setting Zero suppression item does not appear in User Mode Zero suppression item is always available in Maintenance Mode ZFLW DSP pg 87 ON Zero follower item appears in User Mode OFF factory setting Zero follower item does not appear in User Mode Zero follower item is always available in Maintenance Mode CYL DISP pg 87 ON fact...

Страница 81: ...seconds To reverse the direction of change ie from increasing to decreasing or vice versa a Press and hold AIR b Immediately press POWER MODE and then release both buttons 7 Continue to Step 6 8 The GAS CAL item displays 9 Use AIR to move through the Maintenance Mode items Tips for Using Maintenance Mode To scroll from one item to the next press and release AIR To reverse the scrolling direction a...

Страница 82: ... TEST menu even though the buzzer sounds in the event of a real gas alarm condition while in Measuring Mode A gas test is not saved in logged data Preparing for a Gas Test To perform a gas test on the GasWatch 3 you need A calibration gas cylinder The concentrations should be above the alarm condition you want to check Standard alarm points are listed on pg 7 A 0 25 LPM fixed flow regulator Non ab...

Страница 83: ...larm condition 5 Turn the regulator knob clockwise to close the regulator 6 Unscrew the regulator from the calibration cylinder 7 Remove the calibration cup from the GasWatch 3 8 Store the calibration kit in a safe and convenient place 9 Press and release POWER MODE to return to the GAS TEST item in Maintenance Mode 10 See Entering Measuring Mode START on page 90 to enter Measuring Mode Sensor Bat...

Страница 84: ...mp Test BUMP See Performing a Bump Test BUMP on page 37 for a description of the BUMP item Setting Alarms to Latching or Self Resetting LATCH ON factory setting The GasWatch 3 remains in alarm until the alarm condition passes and POWER MODE is pressed OFF The GasWatch 3 automatically resets an alarm when the alarm condition passes 1 While in Maintenance Mode press AIR to scroll to LATCH 2 Press an...

Страница 85: ...n Maintenance Mode 5 See Entering Measuring Mode START on page 90 to enter Measuring Mode Turning the Auto Zero Function On Off A ZERO ON The GasWatch 3 asks if you want to perform a fresh air adjustment at the end of the startup sequence OFF factory setting The GasWatch 3 does not ask if you want to perform a fresh air adjustment at the end of the startup sequence 1 While in Maintenance Mode pres...

Страница 86: ...P item in Maintenance Mode 5 See Entering Measuring Mode START on page 90 to enter Measuring Mode Turning the Zero Suppression On Off ZERO SUP The ZERO SUP setting is not intended for field adjustment The default setting is ON Turning the Zero Follower On Off ZERO FLW The ZERO FLW setting is not intended for field adjustment The default setting is ON The oxygen channel does not support zero follow...

Страница 87: ...L item Setting the Date Time DATE 1 From the main menu place the cursor next to DATE 2 Press and release POWER MODE The date and time display with the year flashing 3 Use AIR to display the desired year 4 Press and release POWER MODE to save the setting The month setting flashes 5 Repeat Step 3 and Step 4 to enter the month day hours and minutes settings The date and time are saved and the instrum...

Страница 88: ...ashes 6 Use AIR to display a number from 0 to 9 7 Press and release POWER MODE to enter the selection and advance to the next number To go back a number press and hold AIR and POWER MODE for a few seconds 8 Repeat Step 6 and Step 7 to select the remaining numbers When you press and release POWER MODE to enter the last number the password is saved and the instrument returns to the PASSWORD item in ...

Страница 89: ...e Mode 4 See Entering Measuring Mode START on page 90 to enter Measuring Mode Performing a Default M DEF Performing a default operation in Maintenance Mode returns all parameters to their RKI factory settings 1 While in Maintenance Mode press AIR to scroll to M DEF 2 Press and release POWER MODE 3 Press and release POWER MODE to perform a default operation The instrument asks if you are sure you w...

Страница 90: ...on The instrument beeps twice and returns to the M DEF item in Maintenance Mode 5 See Entering Measuring Mode START on page 90 to enter Measuring Mode Entering Measuring Mode START 1 While in Maintenance Mode press AIR to scroll to START 2 Press and release POWER MODE The instrument begins its warmup sequence START ...

Страница 91: ...ue to hold the buttons down 3 You will hear a second beep Continue to hold the buttons down 4 When you hear a third beep release the buttons 5 A password screen appears and the first digit flashes The password is 2014 Table 12 Gas Select Mode Menu Items Menu Item Page of Description Description SAVE AP pg 92 Set the current alarm points as the default alarm points MAX SPAN pg 93 ON Maximum span sc...

Страница 92: ...item and to save any changes press and release POWER MODE To change a flashing parameter press and release AIR To reverse the direction of change ie from increasing to decreasing or vice versa a Press and hold AIR b Immediately press POWER MODE and then release both buttons To exit an entered item without saving a change press and hold AIR and POWER MODE for a few seconds Saving the Alarm Points S...

Страница 93: ...uld have been adjusted up to 100 ppm If the maximum span value is close to the calibration value the sensor should be replaced soon The upper limit on the maximum CO adjustment is either twice the calibration value or full scale whichever is lower The upper limit on the maximum oxygen adjustment is 25 0 volume OFF factory setting There is no maximum span indication at the end of a calibration 1 Wh...

Страница 94: ...tions It can be useful to have this feature turned on if you have also turned STEALTH on OFF factory setting The vibrator does not activate for any reason 1 While in Gas Select Mode press AIR to scroll to STEALTH 2 Press and release POWER MODE The current STEALTH setting flashes 3 Use AIR to display the desired setting 4 Press and release POWER MODE The current VIB setting flashes 5 Use AIR to dis...

Страница 95: ...e instruction manual This warranty indicates the full extent of our liability and we are not responsible for removal or replacement costs local repair costs transportation costs or contingent expenses incurred without our prior approval THIS WARRANTY IS EXPRESSLY IN LIEU OF ANY AND ALL OTHER WARRANTIES AND REPRESENTATIONS EXPRESSED OR IMPLIED AND ALL OTHER OBLIGATIONS OR LIABILITIES ON THE PART OF...

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