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Qel QIRF, Installation, Operation And Maintenance Manual

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Qel QIRF Installation, Operation And Maintenance Manual Download Page 28

QIRF Operation And Maintenance Manual 

QIRF Operation Manual 

 

May. 01, 2012 

85050-301-000 Rev C 

27

3.14  Menu “7_A-Out Database” 

The Analog Database setup is almost identical to that of the relays. 

QIRF  will  compare  the  concentration  at  4mA  and  the  concentration  at  20mA,  you  may 
assign a larger concentration for 4.0 milliamps than for 20 milliamps; the QIRF will still 
stretch  a  straight  line  signal  between  the  two  points  and  then  convert  the  current  gas 
reading to analog output.  

Note: The Analog Output can not be disabled. 

Note: When the sensor has fault, it will output 2.5mA to indicate fault status. 

 

Conc@4mA: 

Input the gas concentration at which the 4mA is output.  

Default is 0 ppm.

 

Conc@20mA: 

Input the gas concentration at which the 20mA is output.  

Default is 1000 ppm.

 

 

RETURN

TO UP LEVEL

CONC @ 4mA

>    NNNN

MODIFY

A-OUT?

CONC @ 20mA

>    NNNN

FINISHED!

ESC

YES

YES

YES

ESC

ESC

 

Summary of Contents for QIRF

Page 1: ...QIRF REFRIGERANT GAS TRANSMITTER SENSOR INSTALLATION OPERATION AND MAINTENANCE MANUAL ...

Page 2: ...ION AND CONFIGURATION 13 3 1 QIRF WORKING MODE 13 3 2 SYSTEM INITIALIZATION 13 3 3 KEYPAD 13 3 4 STATUS LED 15 3 4 1 RS485 TX RX 15 3 4 2 Relay1 3 LED 15 3 5 LATCHED RELAY RESET 15 3 6 HUSH BUZZER AND HORN 15 3 7 QIRF MAIN MENU TREE 15 3 8 MENU 1_SYSTEM SETTING 17 3 8 1 System Settings 18 3 9 MENU 2_ZEROING CALIBRATION 20 3 9 1 Equipment Required 20 3 9 2 Zeroing Calibration Procedure 20 3 10 MENU...

Page 3: ...QIRF Operation And Maintenance Manual QIRF Operation Manual May 01 2012 85050 301 000 Rev C 2 5 1 DVM CONNECTION FOR 4 20MA MEASUREMENT 29 5 2 4MA AND 20MA OUTPUT CALIBRATION 29 6 TROUBLESHOOTING 30 ...

Page 4: ...cular gases have the same IR spectrum IR spectra are the fingerprints of gases and thus allow gases to be uniquely identified By transmitting a beam of IR radiation through the air or through any particular gas volume and recording how much is transmitted at selected spectral lines one may decide which gases are present and how much of each This is a standard and well proven principle routinely us...

Page 5: ...lacement 1 2 Key Features Infrared Sensing Technology Constant Temperature QT Gas Sampling Cell Standard RS 485 Output with OptoMux protocol and ModBus protocol Standard 4 20mA or 2 10VDC Analog Output Diffusion Sampling module or Pump thru module No moving parts in diffusion or pump thru model Water and corrosion resistant PVC enclosure NEMA 4 4X Addressable from 0 to 31 4 magnetic sensors as key...

Page 6: ...A R410A R422A R438A R507A Available on special order R13 R14 R21 R23 R31 R32 R41 R113 R115 R116 R125 R143a R152 R161 Range 0 to 100ppm for R123 0 to 1000ppm for others Accuracy 3 of reading Repeatability 1 of full scale Sampling Diffusion or Pump through Panel Indicators 5 Status LED s RS 485 TX Status Green RS 485 RX Status Green Relay1 Status Red Relay2 Status Red Relay2 Status Red Display 2 x 8...

Page 7: ...roller M Controller Q4 Controller RS 485 with ModBus protocol 4 20mA or 2 10VDC Analog Signal Enclosure Rating IP 66 NEMA 4 4X 12 13 Cover Screws should be torqued to 2 5lbs in 30cN m Operating Temperature 45 C to 65 C Ambient Humidity 5 to 95 RH non condensing Storage Temperature 45 C to 70 C Size 200mm X 120mm X 90mm Weight Less than 1 5lbs 0 680 kg ...

Page 8: ...location In outdoor situations considerations such as prevailing winds should be accounted for Air convection can often be more important in determining gas concentrated areas than factors of Vapor Density 2 Vapor Density R11 R22 R123 and R134A are heavier than air Detecting location should be 9 18 inch 0 23m to 0 46m above the floor 3 Gas Emission Sources As a rule at least one sensor should be l...

Page 9: ...tom of the QIRF enclosure See above picture In Pump thru version QIRF the sampling gas is pumped through the fitting on the bottom of the QIRF enclosure and passed through the gas chamber then exhausted out though the fitting on the right side of the enclosure Pump thru version QIRF doesn t have pump inside For gas sampling and conditioning unit QEL provides SCS 1 One channel sampling and conditio...

Page 10: ...is equipment in a manner not specified by the manufacturer could cause electric shock bodily injury or risk of fire Power Supply Voltage 15 24VAC 50 60Hz 1 0A AC Total max 18 30VDC 1 0A DC Total max Note AC Power Supply must be non grounded floating Note No external over current protection is required Over current protection is provided by means of fuses F1 Fuse F1 PolySwitch 1 6A ...

Page 11: ...rminator on each end of the RS485 loop is designed to match the electrical impedance characteristic of the twisted pair loop and will prevent signal echoes from corrupting the data on the line The terminator should be enabled on BOTH ends of the RS485 loop Short and medium length modbus 485 loops can operate without the terminating resistor Longer runs may require the terminating resistors But add...

Page 12: ...utput impedance is 600 ohms for 4 20mA output The maximum output current is 10 mA for 2 10VDC output Test point SIG and SIG are used to measure the current online when the QIRF is working in the field The module can also be used to output 2 10VDC if the Jump J5 2 3 is connected The default setting J5 1 2 is connected that mean the output is 4 20mA analog output The analog output may be defined in ...

Page 13: ... Relays on board which is able to make it work alone to control other equipment such as fans lights horns or visual alarm indicators in different applications Three terminal blocks TB2 TB3 and TB4 are located on the Display Board Each relay can be programmed individually Switching capability of each relay is 1 0 A maximum resistive load at 30 VDC 0 3A maximum resistive load at 125VAC ...

Page 14: ...r the ambient temperature and input voltage are the longer it takes Normally at 25 C and 24V input voltage it takes 15 minutes The default warming up timer is 24 hours the warming up procedure can be aborted by pressing key ESC for 3 seconds The warming up timer can be set again in MENU System Setting Zero Cal Timer If the warming up procedure is not aborted when timeouts the transmitter automatic...

Page 15: ...l and Hold Display Character indicates the screen is in HOLD Mode The screen will be held for 120 seconds Display Detail about the output NO YES NO YES NO YES Press the DOWN key will browse the detail of the current output which is able to be selected by UP key Hold 3 seconds Reset all Relays in Latched Satus Hush all Buzzers in Alarm Status YES NO Hold 3 seconds YES NO PASSWORD NNNN Passoword is ...

Page 16: ...lay LED will turn ON at non alarm state and turn OFF at alarm state because the LED reflects the relay coil status 3 5 Latched Relay Reset To acknowledge a latched condition press Key ESC for 3 seconds All latched relays for which the alarm condition has been removed will reset If the alarm condition e g high gas concentration is still present the relay s will not reset 3 6 Hush Buzzer and Horn Pr...

Page 17: ...3 R134a CAL ACCEPTED YES ESC YES YES ESC YES YES A OUT DATABASE SUBDIVISION BUZZER DATABASE SUBDIVISION YES YES ESC ESC RELAY DATABASE SUBDIVISION YES ESC OUTPUT TESTING SUBDIVISION ESC SYSTEM SETTING SUBDIVISION ESC MENU MODE MENU MODE MENU MODE MENU MODE SEE RelayDataBase Page SEE AOUTDataBase Page SEE BuzzerDataBase Page SEE TESTING Page SEE SYSTEM SETTING Page 9_ OUTPUT DISABLE ESC ALL OUTPUTS...

Page 18: ...NNNN ACCEPTED New Mode MODBUS Up YES Down ESC Up Up Down Down Down Up Up Up Up Down Down Down YES YES YES YES YES YES YES ESC ESC ESC ESC ESC ESC ESC ESC YES ESC YES YES YES YES YES YES YES YES ESC ESC ESC ESC ESC ESC ESC RETURN TO UP LEVEL S S1 Up S S1 Down PRESS KEY UP AND KEY DOWN TO MODIFY The two function are used to calibrate Analog Output 4 20mA Is ModBus ACCEPTED NO PARITY ODD EVEN NONE YE...

Page 19: ...will turn on for 10 seconds after any Key has been pressed Default setting is Always ON mode 4mA Cal 20mA Cal These values are established during factory calibration for 4 20mA analog output and should not require recalibration in the field Do not attempt to modify these settings in the field Changing these values will change the analog output signal scale Warning This procedure is part of factory...

Page 20: ...ero in background NOTE AutoZero works best in situations where the facility is exposed to non refrigerant existing air at least four times in 7 days In facilities that are continuously occupied for 24 hours per day or where there could be significant sources of non occupant related refrigerant gas the Auto Zero should be turned OFF Restore Default To load defaults to all items Perform a full facto...

Page 21: ...000ppm Others 1000ppm 1000ppm The QIRF smart sensor is calibrated using a two point calibration process First use a Zero Gas then use a CAL Gas containing a known concentration of a standard reference gas to set the second point of reference 3 9 1 Equipment Required A cylinder of Zero Gas it can be clean room air or Zero Air 20 9 Oxygen in Nitrogen DO NOT USE PURE NITROGEN A cylinder of Cal Gas ba...

Page 22: ...nt to perform Zeroing Calibration 3 Waiting for about 3 minutes or till the reading is stable 4 Press Key YES to perform Zeroing Calibration 5 During Zeroing Calibration the LCD will display the digital pot positions and calibration statuses It will take 3 to 10 minutes to perform Zeroing Calibration then the zero calibration data is saved and LCD displays Accepted 6 If the LCD displays Cal Error ...

Page 23: ...rrent reading SPAN CAL NN PPM This screen is displaying the current reading and asking if you want to perform Span Calibration 3 Waiting for about 3 minutes or till the reading is stable 4 Press Key YES to perform Span Calibration 5 During Span Calibration the LCD will display the digital pot positions and calibration statuses It will take about 1 minute to perform Span Calibration then the span c...

Page 24: ...n not an energized vs non energized action Therefore the user must be aware of those relays which have been defined as normally energized or not normally energized RELAY TEST BUZZER TEST A OUT TEST RELAY 1 RELAY ON RELAY 2 RELAY 3 BUZZER ON BUZZER OFF OUTPUT 4mA OUTPUT 20mA Up Down ESC Up Up Down F F1 F F1 RELAY ON RELAY ON YES ESC YES YES ESC ESC YES ESC Down Down Up Up ESC YES YES ESC ESC YES YE...

Page 25: ...ch in Actuate status until acknowledged by a front panel action Hold the button ESC for 3 seconds to release latched relays Default is Non Latching Action On Action Off If Action On is greater than or equal to Action Off Window OFF Action On Set the concentration at or above which the relay will actuate Action Off Set the concentration at or below which the relay will de actuate If Action On is le...

Page 26: ...lay to actuate Default is 30 seconds OFF Delay Delay on De Actuation or Delay on Break For each relay a separate time delay may be set from 0 to 990 seconds before a return to a non alarming signal condition will cause the relay to de actuate Default is 30 seconds Fault Set to ON for actuating the relay if the unit reports any Faults Default is ON Window When it s set to ON if the concentration is...

Page 27: ...N ON DLY NNNN OFF DLY NNNN FINISHED Up Down YES ESC YES ESC Down Up YES ESC YES ESC YES YES ESC ESC RETURN TO UP LEVEL CHOOSE A RELAY TO MODIFY YES RELAY1 ENABLED FAULT ON WINDOW ON YES ESC ESC ANY FAULT WILL ACTUATE THE RELAY READING OUT OF WINDOWS WILL ACTUATE THE RELAY DELAY IS VALID BETWEEN 0 TO 990 SECONDS RELAY1 DISABLED Down YES Up ESC MODIFY RELAY2 Down Up MODIFY RELAY3 Down Up FINISHED YE...

Page 28: ...r 20 milliamps the QIRF will still stretch a straight line signal between the two points and then convert the current gas reading to analog output Note The Analog Output can not be disabled Note When the sensor has fault it will output 2 5mA to indicate fault status Conc 4mA Input the gas concentration at which the 4mA is output Default is 0 ppm Conc 20mA Input the gas concentration at which the 2...

Page 29: ...s disabled the relay buzzer and analog output etc statuses will freeze in whatever state they are already in Default is Output Enabled when the unit is powered up 3 17 Menu 10_Simu Disable Simulation Mode is to assist in testing the installation before commissioning When the simulation is enabled the unit will not detect gas concentration it will display the simulating value and use it to calculat...

Page 30: ...uring factory 4 20mA output calibrations and should not require recalibration in the field Do not attempt to modify these settings in the field Changing these values will change the analog output signal scale Entry Menu System Setting Choose 4mA CAL 1 Press Key YES to output 4mA signal 2 Connect DVM to the unit as described above 3 Press Key Up and Key Down to adjust the current to 4 00mA to 4 05m...

Page 31: ...ken Wait for the block to warm up Check IR Block Assembly Check IR Block Assembly Error Report PH DIRTY LP SHORT LP OPEN CAL ERR IR Source or Lamp Dirty Gas Sample Cell Dirty Signal Fault Drift too much Lamp Short Open Calibrating Error Other Error Return to Factory Return to Factory Return to Factory Re zeroing calibration Check IR Block Assembly Recalibration or Adjust POTs or Check Gas Flow or ...

Page 32: ... and travel time are chargeable for any field site visits required for warranty work LIMITED LIABILITY All QEL systems shall be installed by a qualified technician electrician and maintained in strict accordance with data provided for individual systems in the form of installation maintenance manuals QEL assumes no responsibility for improper installation maintenance etc and stresses the importanc...

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