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Form creation date: 01.04.2008 

Document creation date: 13.01.2020 

11 / 18

 

3.9 Battery status visualization 

The battery  status is  always  displayed at  the  bottom  left of  the  screen. The  instrument 

automatically  monitors  the battery  voltage and  when the  battery  is nearly  empty, the  battery 

icon appears  “empty”. The status  of  "low  battery"  guarantee the  operation  ofthe  device for  10 
minutes after  its  appearance. After this  period the metrex2 stops  and  in  the  display 

appear   STOP (fig.  22) on  the  screen,  the  instrument must be  recharged via the  supplied 

charger. 

The battery charging must be done in a safe area.

 

fig. 22 

During charging on the display appears Load (Fig. 23). Time to recharge the battery after full 

discharge is 10-12 hours. 

fig. 23

 

NOTICE: Don't leave the instrument connected to the power supply longer than the time necessary 

for recharging. If the METREX2 is not or rarely in use, recharge at least every 4 weeks. For the reason 

of  environmental  protection,  the  METREX2  is  equipped  with  rechargeable  nickel  metal  hydride 

batteries, which do not contain heavy metals harmful for the environment. 

Summary of Contents for METREX2

Page 1: ...METREX2 USER MANUAL VERSION 2 5 ...

Page 2: ...ing the calibration and the flow rate Instrument for the personal safety for HC CH4 e C3H8 and toxic gases O2 CO H2S Portable instrument for the detection and localization of micro gas leaks CH4 e C3H8 and for personal safety O2 CO H2S Portable instrument for the detection of methane and propane The portable gas chromatograph for the measurement and analysis of odorants in gas distribution network...

Page 3: ...G RANGES 8 3 3 LEL MEASURING RANGE 8 3 4 ALARM 9 3 5 DATA REGISTRATION OPTIONAL 10 3 6 AUTO ZEROING 11 3 7 DISPLAY ILLUMINATION 11 3 8 RECHARGING OF BATTERIES 11 3 9 BATTERY STATUS VISUALIZATION 12 4 0 GAS TYPE SELECTION OPTIONAL 13 5 0 PUMP BLOCK 13 6 0 MAINTENANCE AND PERIODICAL CALIBRATION 14 7 0 WARRANTY 14 APPENDIX A SAFE USE OF THE INSTRUMENT 21 Appendix B Important information for correct d...

Page 4: ...nces control of the sensor for the detection of gas concentrations the functions of the instrument which can be commanded by keyboard management of alarms registration of data and serial communication for download on PC of memorized data This unit is designed to comply the actual ATEX directive METREX2 works with a group of ecological harmless rechargeable nickel metal hydride batteries which allo...

Page 5: ...on 3 Switch ON OFF acoustic signal button 4 Switch button PPM VOL LEL button 5 Auto zeroing button 6 220 V connection LED 7 Battery recharge LED 8 ON OFF acoustic signal LED 9 Alarm threshold LED 10 VOL scale LED 11 Display Figure 2 1 Air outlet 2 Quick coupling for probes 3 Buzzer 4 Socket for battery charger serial port for data download 5 Cover ...

Page 6: ... When switched on a serial number of the instrument will be shown on the display fig 3 followed by an acoustic signal Subsequently the display will show Px x software version and CAL calibration in progress fig 4 and fig 5 fig 3 fig 4 fig 5 The phase of warming up and auto calibration takes about 1 minutes after switching on the instrument When finished the device automatically changes to the PPM ...

Page 7: ...angeover from the volumetric to the PPM scale is only possible by pushing the PPM VOL button and is not executed automatically Furthermore a changeover from VOL to PPM is only possible if the gas concentration is below 10000 ppm 1 When the volumetric range is chosen the corresponding LED 10 fig 1 and fig 8 is lit fig 7 fig 8 3 3 LEL measuring range The METREX2 has the LEL scale fig 10 which is act...

Page 8: ... exceeds the preset alarm limit in any case the optical alarm LED 9 fig 1 and fig 13 blinks The alarm thresholds are adjustable both in the PPM and in the VOL range Press button 3 fig 1 e fig 12 for more than 2 seconds to see the alarm limit actually set It can be altered by holding this button 3 pressed and additionally pressing the PPM VOL button 4 fig 1 and fig 14 for increasing or the zero but...

Page 9: ...d and last time the new reading will be recorded consecutively in the internal memory and with that the instrument returns to the normal function The following procedure makes it possible to show all recorded readings on the display of the instrument e g before transferring the data to a computer Press the record button 2 two times and the number of the last reading will be displayed By pressing t...

Page 10: ...d with the METREX2 Make sure that the instrument is switched off if it is not do that Connect the battery charger to 220V power supply and insert the plug into the socket of the METREX2 4 see fig 2 The instrument recognizes the connection and changes to recharging mode automatically even if the device is switched off During the recharging procedure the charging voltage is shown on the display fig ...

Page 11: ...n the display appear STOP fig 22 on the screen the instrument must be recharged via the supplied charger The battery charging must be done in a safe area fig 22 During charging on the display appears Load Fig 23 Time to recharge the battery after full discharge is 10 12 hours fig 23 NOTICE Don t leave the instrument connected to the power supply longer than the time necessary for recharging If the...

Page 12: ... 5 fig 1 fig 26 e fig 27 display will show the new gas type for a while Metrex 2 is now ready to carry out measures of the new gas When Metrex 2 is turned on display shows current gas setting with CH4 C3H8 or Nothing CIT WARNING gas type selection must be done in a gas free area 5 0 PUMP BLOCK METREX2 may be provided with an optional pump blocking features in event of a continuous flux obstruction...

Page 13: ...ronmental Systems Limited provides all repairs of malfunctions due to manufacturing defectives The guarantee is not valid for damages caused by improper use or handling of the device The warranty will be terminated if persons not authorized by QED Environmental Systems Limited perform repairs This guarantee is valid in all countries where QED Environmental Systems Limited and or an authorized agen...

Page 14: ...Form creation date 01 04 2008 Document creation date 13 01 2020 14 18 ...

Page 15: ...on network and also for personal safety INSTALLATION Suitability of equipment into installation site In the case of use in areas with danger of explosion must verify that the type of detector is suitable at the classification of the area and at the flammable substances in the system The essential requirements of security against the risk of explosion in dangerous areas are established by the Europ...

Page 16: ...em Notes a The devices for Group IIC are suitable also for group IIA and IIB b Equipment with temperature class T4 are also suitable for all the substances with higher class temperature T3 T2 T1 Other precautions for the usage The charging of the batteries must be in a safe place with the appropriate external adapter Do not open the instrument by unauthorized personnel the opening of which invalid...

Page 17: ...ately avoids possible negative consequences for the environment health deriving from inappropriate disposal and enables the constituent materials to be recovered to obtain significant savings in energy and resources As a reminder of the need to dispose of household appliances separately product is marked with a crossed out wheeled dustbin For European users In case of electrical or electronic devi...

Page 18: ...Form creation date 01 04 2008 Document creation date 13 01 2020 18 18 www huberg com ...

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