Related Manuals for Crowcon T4
Summary of Contents for Crowcon T4
- Page 1 T4 User & Operator Manual Personal Gas Detection Equipment Click here Portable Multigas Detector for navigation instructions Click here fo contents list M070044/Eng Issue 4 Nov 2016...
- Page 2 NAVIGATION INSTRUCTIONS Contents The symbols in the left-hand margin of each page of the manual will enable you to carry out the following functions: Contents Click on this button to display the Contents page. Click on this button to display the previous page. Click on this button to display the next page.
-
Page 3: Table Of Contents
1.2 T4 orientation ........ - Page 4 2.7 T4 menu icons ..........31 2.8 Accessing T4 menu functions ....... . .32 2.8.1 Home screen .
- Page 5 7.2 Crowcon contacts ........
-
Page 6: Prologue
T4 is a portable monitor capable of detecting up to 4 gases in a compact and wearable design. Focused on users and fleet managers alike, T4 offers application focused solutions giving greater operating time and reduced set up time. -
Page 7: Safety Information
Cradle use only Crowcon supplied AC Adaptor. Otherwise this may impair intrinsic safety and invalidate safety certification. • T4 has been certified and marked Um = 9.1V therefore, if charging T4 via the T4 10 way charger use only Crowcon supplied AC Adaptor. Otherwise this may impair intrinsic safety and invalidate safety certification. - Page 8 +55 °C; pressure 80 kPa (0,8 bar) to 110 kPa (1,1 bar); and air with normal oxygen content, typically 21 % v/v (volume/volume). T4 ‘Type 2’ (as indicated on the certification label) may be used in Zones 1 and 2, for Group •...
- Page 9 Explosive atmospheres – Part 0: Equipment - General requirements EN 60079-11:2012 Explosive atmospheres - Part 11: Equipment protection by intrinsic safety “i” II 2 G Ex d ia IIC T4 Gb Tamb -20°C to +55°C (T4 Type 2) Prologue DEMKO 15 ATEX 1411...
-
Page 10: Unpacking
Unpacking Contents Your T4 will have been inspected and quality checked before it left our manufacturing facility. It will be configured as a standard unit with standard settings as shown in the table below and any changes to suit your specific site requirements can be made utilising Portables Pro 2.0 PC Application and the Communications Cable, part number CH0103. -
Page 11: Box Contents
Box contents • T4 checked and calibrated Set-up • Quick start guide • Calibration/Bump test plate for gas testing T4 – tubing can be bought separately in 1 m (3 feet Operation lengths) • Calibration report • Declaration of Conformity... -
Page 12: Set-Up
Before use, T4 should always be checked for any signs of physical damage. T4 uses a Lithium Ion (Li-ion) battery pack and should arrive with sufficient charge to be used straight out the box. However, if this is the first time of use, the battery will require charging to attain the full operating time (see Charging &... -
Page 13: Charging & Battery Indications
1.3 Charging & battery indications Contents Charging should only take place in non-hazardous (safe) areas. To charge T4, simply plug it into either below). Ensure T4 fits firmly on the desktop charging unit À or the ten-way charging unit Á... - Page 14 Appendices * Note: A T4 with no flammable sensor fitted typically has a maximum run time of 50hrs. The run time between segment changes will be longer than described above but when the battery icon is flashing with no segments...
-
Page 15: Fitting The Calibration/Bump Test Plate
Place the cap into the groove on the left hand side of the T4 first À , ensuring the flat part of the cap faces the bottom of the T4 and the text is the correct way up, then click the right hand side in place Á... -
Page 16: Fitting The External Filter Plate
Specification The filter plate has been designed to operate with the charging accessories and does not need to be removed when inserting T4 in to the desktop charger, the ten-way charger or the T4 vehicle charger. Accessories The filter plate should be replaced if the filters are damaged by substances that could affect the flow of gas to the sensors, like paints, grease or oils. -
Page 17: Ve Safety
1.6 +ve Safety™ Contents +ve Safety™ is a quick and easy indication of the operating status of T4, this status is indicated by a front mounted LED. When the +ve Safety™ LED is illuminated green, this indicates that the unit is functioning as required and no further action is necessary, such as bump testing or calibration. -
Page 18: Quick View
1.7 Quick view Contents The configuration details of T4 can be reviewed even if T4 is not powered by momentarily pressing the operator button. The device will emit an audible blip and the LED’s to the right of the display will flash red once, the serial number of T4 will then be displayed for 10 seconds, T4 will then turn off. - Page 19 The screen displays the Quick View screen. Contents The screen then displays the T4 serial number. Prologue Set-up The screen then displays the T4 firmware version. Operation Maintenance This screen displays the T4’s configured user name. Specification Accessories This screen displays the sensors configured lower alarm levels.
- Page 20 This screen displays the date the T4’s next calibration is due. Operation Maintenance This screen displays the date the T4’s next bump test is due. Specification This screen will only be displayed if bump test is configured via Portables Pro 2.0.
-
Page 21: Operation
T4 will not respond to gas until the startup sequence is complete. Prologue In ‘clean air’, turn on T4 by holding down the operator button for 3 audible short blips followed by one longer tone. T4 will warm up and go through a series of automatic processes as follows:... - Page 22 This screen then displays the T4 serial number. Contents This screen then displays the T4 firmware version. Prologue Set-up This screen then displays the T4’s configured user name. Operation Maintenance This screen then displays the sensors’ configured lower alarm levels. Specification Accessories This screen then displays the sensors’...
- Page 23 This screen then displays the date the T4’s next calibration is due. Prologue Set-up This screen then displays the date the T4’s next bump test is due. Operation This screen will only be displayed if bump test is configured via Portables Pro 2.0.
-
Page 24: Home Screen
(if À configured) the +ve Safety™ LED will be illuminated green indicating T4 is operating correctly. The image shown is the home screen of a T4 fitted with 4 sensors. The same screen is also shown in ‘home screen flipped’ mode’... -
Page 25: Alarms
A minimum and maximum level is set for oxygen, whilst the remaining gases will Troubleshooting cause an alarm for rising gas levels. T4 will indicate an alarm state ‘1’ or alarm state ‘2’ according to which configured gas level has been Appendices exceeded. -
Page 26: Short Term Exposure Limit Alarm (Stel)
STEL values will be cleared. If T4 is switched off for more than 8hrs the TWA Resume function will not be available in the start up sequence and T4 will clear the TWA, STEL and peak gas values when powered back on. -
Page 27: Alarm And Status Icons
Simply click the operator button. If T4 is now being used by a new operator and the TWA Resume function is not required do not click the operator button and allow countdown to expire. This will reset the STEL, TWA and peak values Prologue back to zero. -
Page 28: Accepting And Clearing Alarms
Specification once the gas level has dropped below dropped below the alarm level the alarm level Accessories While in alarm, T4 will continue to record levels of all the gases being monitored. Troubleshooting Appendices Warranty Exit... -
Page 29: Sensors
T4 flammable sensor must only be calibrated with methane. Set-up However T4 can be configured to detect other flammable gases. The flammable gas to be detected and the correction factor can be changed in T4 via the PC Application, Portables Pro 2.0. -
Page 30: Pellistor Sensors
While in saver mode and the subsequent stabilise time, the gas level displayed on the LCD screen will indicate over range. As the sensor has been exposed to a gas level sufficient to cause a sensor over-range T4 should be gas tested to ensure no lasting damage has occurred. Exit... -
Page 31: T4 Menu Icons
2.7 T4 menu icons Contents The following menu functions on the T4 display can be selected: Icon Title Action Home Return to Home page Information Displays unit status/configuration Prologue Zero Performs a sensor zero Set-up Peak Mode Displays peak gas readings... -
Page 32: Accessing T4 Menu Functions
À Á X As a safety feature if gas is detected whilst in a menu, T4 will revert back to the home screen Set-up to ensure the gas readings are displayed. This will not occur if T4 was in bump test mode, calibration mode or peak mode. -
Page 33: Manual Zero
X To perform a manual zero, press the operator button before the countdown finishes. Operation If the operator button is not pressed before the countdown is complete, T4 will not perform a manual zero and will automatically return to the home screen. -
Page 34: Peak Mode
Contents The peak mode function allows peak gas readings to be viewed at any time. The peak mode function can also be utilised for pre-entry checks, where T4 is to be lowered into a confined space. X With the home screen displayed, double click the operator button to access the menu functions screen. -
Page 35: Bump Test
2.8.5 Bump Test Contents T4 bump test via menu must be performed utilizing quad gas containing CO, H S, O for a fully populated T4. The applied test gas must contain gas concentrations capable of exceeding the configured alarm level 1 for each gas. - Page 36 When T4 detects the applied test gas the countdown screen will Contents be replaced with the bump test gas reading screen, this will continue to show the gas readings until the bump test result is displayed. If the test gas is not supplied before the end of the countdown the bump test will fail, the bump test will be set to due and, if configured, the +ve Safety™...
-
Page 37: Calibration
2.8.6 Calibration Contents T4 calibration via the menu must be performed utilizing Crowcon quad gas of the following values H S = 15ppm, CO = 100ppm, O = 18%VOL and CH = 50%LEL (2.2% VOL) ‘Allow calibration’ must be enabled for the calibration to operate via the menu function, this can be configured utilizing Portables Pro 2.0. - Page 38 X If the calibration was successful the updated calibration due date will be displayed. Appendices X If the calibration failed, T4 will display the calibration due screen and, if configured, the +ve Safety™ LED will be illuminated red. Warranty X During the calibration as gas is applied the instantaneous alarms will be activated as the gas level exceeds the configured alarm level.
-
Page 39: Stel (Short Term Exposure Limit)
2.8.9 Shutdown Warranty To turn T4 off, press and hold the operator button. A 5 second countdown will start. Hold the button down until the countdown has finished and T4 will shut down. If you release the button before the countdown has finished, T4 will resume operation. -
Page 40: Data Logging
Contents The data log records gas levels for all sensors and has capacity of 45,000 logs (125hrs @10 sec intervals). All data logs can be downloaded from T4 via Portables Pro 2.0. 2.10 Event logging Event logging records significant events occurring during T4 operation. -
Page 41: Bump Test
Organisational specific Health and Safety regulations should be adhered to, and a number of flexible and simple solutions are available. T4 implements a speedy bump test in which gas is applied to trigger alarm level 1. T4 bump strategy can be configured via Portables Pro 2.0. -
Page 42: Calibration
2.12 Calibration Contents Calibration should be carried out if any channel fails a bump test or if T4 has exceeded its calibration due date. A calibration can be performed on T4 in one of the following ways: • Via T4 menu and utilizing the calibration/bump test plate (see Section 2.8.6) -
Page 43: T4 Aspirator Plate
T4 first , ensuring the flat part À Á of the cap faces the bottom of the T4 and the text is the correct way up, then click the right hand side in place  Figure 9: Attaching the Aspirator Plate Prologue À... - Page 44 The fitment of the plate should then be checked to ensure a gas tight seal has been achieved. The Contents bulb should be depressed whilst blocking the adjacent port with a finger; the T4 may at this point indicate an alarm on the O sensor this is due to the pressure effect on the oxygen sensor.
-
Page 45: Service And Maintenance
3. Service and maintenance Contents T4 is designed to require minimal service and maintenance. As with all electrochemical sensors however, these will require periodic replacement. Ensure maintenance, service and calibration are carried out in accordance with the procedures in the manual and only by trained personnel. -
Page 46: Specification
IECEx : Ex d ia IIC T4 Gb Tamb -20°C to +55°C Troubleshooting ATEX: II 2 G Ex d ia IIC T4 Gb Tamb -20°C to +55°C UL: Gas detector use in hazardous locations Class 1 Division 1 Groups A, B, C and D only as to intrinsic safety... -
Page 47: Accessories
5. Accessories Contents Part Number Description T4-CRD T4 Cradle Charger with multi-region power supply T4-TWC T4 10 Way Charger with multi-region power supply T4 10 Way Charger multi-region power supply E011166 T4-VHL T4 Vehicle Charger with auxiliary input adaptor Prologue T4-VHL-BR... -
Page 48: Troubleshooting
No user intervention is possible. Set-up 6.1.2 Fault/Warning/Information Messages T4 may indicate a fault or warning that requires user to intervention to resolve, or T4 may provide additional information on instrument status. Operation The table below provides further details on these faults, warnings and information messages including the fault message/symptom, the cause and the user action required. - Page 49 Operator Warning Action Charger Shutdown If T4 requires “CHARGER SHUTDOWN” charging no action T4 has been placed required, T4 will on charge whilst T4 “ID 73” auto switch off and is powered on for a continue charging. prolonged period. If T4 is removed...
- Page 50 Warning/Fault Display Image Status/Cause Operator Warning Action ‘X’ Zero Failure Ensure T4 is in ‘clean air’ and Whilst in ‘zero menu’. Displayed if the result repeat the zero of a sensor zero was operation. (The warning ID code a fail.
- Page 51 Action ‘X’ Bump Failure Repeat the bump test operation. Displayed if the result of a bump test was T4 must be Whilst in ‘bump menu’. a fail. returned to a service centre The ‘X’ indicates for further which sensor has...
- Page 52 Display Image Status/Cause Operator Warning Action ”BUMP DUE” Bump Test due Undertake a bump test on T4. “NOW” T4 bump test is overdue. This will clear the bump due warning. (Displayed during start up) Prologue “CAL DUE” Calibration Due Undertake a calibration on T4.
- Page 53 Contents Fault / Warning/Fault Display Image Status/Cause Operator Warning Action “WARNING” Sensor under range Ensure T4 is in ‘clean air’ and “ID 58” Indicates the sensor undertake a zero is reading under operation. range. T4 must be returned to a...
- Page 54 22, 23 “WARNING” Logging Fault Click operator button to clear Troubleshooting “ID 22” T4 has detected it is warning. unable to store data (the warning ID shown in the data or event T4 has recovered could be one of the log.
-
Page 55: Appendices
Prologue may also be cross-sensitive to gases other than their specific target gas, and hence the presence of other gases may cause the sensor to respond. If unsure, contact Crowcon or your local agent. Set-up Use of high power radio transmitters in close proximity to the detector may exceed RFI immunity levels and cause erroneous indications. -
Page 56: Crowcon Contacts
7.2 Crowcon contacts Contents Crowcon Detection Instruments Ltd 172 Brook Drive, Milton Park, Abingdon, Oxfordshire, OX14 4SD +44 (0) 1235 557700 sales@crowcon.com Crowcon Detection Instruments Ltd 1455 Jamike Avenue, Suite 100, Erlanger, KY 41018 +1 800 527 6926 salesusa@crowcon.com Crowcon Detection Instruments Ltd... -
Page 57: Warranty
Reason for return. Warranty T4 will not be accepted for warranty without a Crowcon Returns Number (CRN). It is essential that the address label is securely attached to the outer packaging of the returned goods. The guarantee will be rendered invalid if the detector is found to have been altered, modified, dismantled, tampered with, or has not used Crowcon spares for replacement parts (including sensors) or has been serviced or repaired by any party not authorised and certified by Crowcon to do so. - Page 58 Prologue Crowcon reserves the right to determine a reduced warranty period, or decline a warranty period for any sensor supplied for use in an environment or for an application known to carry risk of Set-up degradation or damage to the sensor.
Need help?
Do you have a question about the T4 and is the answer not in the manual?
Questions and answers