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Table of Contents
Summary of Contents for Qel QAS-51000
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Page 1: Operation And Maintenance
MODEL QAS-51000 MONITOR INSTALLATION OPERATION AND MAINTENANCE MANUAL QUATROSENSE ENVIRONMENTAL LTD. 5935 OTTAWA STREET, PO BOX 749 RICHMOND, ONTARIO CANADA K0A 2Z0 PHONE: (613) 838-4005 FAX: (613) 838-4018 Web: www.QELsafety.com Email: QEL@QELsafety.com 23050-010-000 Rev A. - Page 2 QAS-51000 SERIES __________________________ Gas Label __________________________ Span Set __________________________ High Alarm Set __________________________ Lo Alarm Set __________________________ SWITCHES Latching Alarms 1. Fail Latching Alarm _____ _____ 2. Buzzer _____ _____ 3. Lo Latching Alarm _____ _____ 4. Hi Latching Alarm...
- Page 3 QAS-51000 SERIES GAS DETECTION SYSTEMS TABLE OF CONTENTS DESCRIPTION PAGE FRONT PANEL FEATURES AND ADJUSTMENTS Power On/Off………………………………………………………………………2 Display………………………………………………………………………………2 Changeable Legend Window…………………………………………………….2 Membrane Switch Functions……………………………………………………..2 Adjustments……………………………………………………………….……….2 Set Span……………………………………………………………………………2 Set Alarms………………………………………………………………………….2 INTERNAL FEATURES Relays……………………………………………………………………………….3 Audio………………………………………………………………………………..3 Power Supply………………………………………………………………………3 Transmitter Power Supply………………………………………………………..3 4 - 20 mA Signals………………………………………………………………….3 Fuse…………………………………………………………………………………3...
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Page 4: Table Of Contents
LIST OF FIGURES FIGURE DESCRIPTION PAGE Front Panel Features………………………………………………… 1 Internal Features and Adjustments………………………………… 5 19" Rack Front View………………………………………………….7 Rack Mount Hook-Up…………………………………………………7 Wall Mount Configuration - Up to Eight Channels…………………………………………………8 Wall Mount Box……………………………………………………….9 Wall Mount Configuration - Up to Four Channels…………………………………………………10 23050—010-000 Rev A. -
Page 5: Front Panel Features
2-wire and 3-wire remote transmitters at 25 to 30 VDC. The QAS-51000 is an extremely compact unit, based on a 100 mm by 160mm eurocard with a two inch wide front panel. Eight controllers will fit in one standard 19" x 5.25" rack. -
Page 6: Power On/Off
Three digit high visibility LED display. CHANGEABLE LEGEND WINDOW The QAS-51000 will display any 4 to 20 mA signal into a 3-digit display. A legend window is provided for labeling the controller: write or type the legend, e.g CH4 % LEL, on a strip of paper roughly 0.25 inch by 1.8 inch and slide it into the slot on the right of... -
Page 7: Relays
24 VDC to 32 VDC depending on the load. 4 – 20 mA SIGNALS QEL two and three wire transmitters all supply 4 to 20 mA linear signals.Those users who wish to monitor signals from other equipment may do so using only signal and ground connections. -
Page 8: Extracting Module From Rack
Arcing when breaking contact can damage the connectors at the back of the board. The QAS-51000 controller module is held in the rack on card guides and secured by captive screws through the top and bottom of the front panel. These screws must be loosened before removing the module. -
Page 9: Internal Features And Adjustments
FIGURE 2 INTERNAL FEATURES AND ADJUSTMENTS MEMBRANE SWITCH CONNECTOR 1. Span 2. High 3. Low 4. Test 5. Reset 6. Common/Ground SWITCHES SB1. Latching Alarms and Audio SB2. Decimal Choice Switch 1. Fail Latching Alarms 1. 0.00 2. Buzzer 2. 00.0 3. -
Page 10: Decimal Place
DECIMAL PLACE The meter is not auto-ranging and so the range of interest and the accuracy is set by the operator depending upon the span used and the accuracy of the signal or transducer. As a rule of thumb choosing additional decimal places makes it easier to set the alarm levels accurately. -
Page 11: 19" Rack Front View
FIGURE 3 FIGURE 4 19” RACK FRONT VIEW RACK MOUNT HOOK UP 23050—010-000 Rev A. -
Page 12: Wall Mount Configuration - Up To Eight Channels
13.2 13.2 13.2 13.2 13.2 13.2 13.2 13.2 FIGURE 5 WALL MOUNT CONFIGURATION – UP TO EIGHT CHANNELS 23050—010-000 Rev A. -
Page 13: Wall Mount Box
REMOVAL OF ACCESS PLATE FOR WIRING FIGURE 6 WALL MOUNT BOX 23050—010-000 Rev A. -
Page 14: Wall Mount Configuration - Up To Four Channels
13.2 13.2 13.2 13.2 FIGURE 7 WALL MOUNT CONFIGURATION – UP TO FOUR CHANNELS 23050—010-000 Rev A. -
Page 15: Warranty Statement
This warranty is in lieu of all other warranties, expressed or implied, and no representative or person is authorized to represent or assume for QEL any liability in connection with the sales of our products other than that set forth herein.