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Gas Sensors
Instruction Manual
WARNING
U
THIS MANAUL MUST BE CAREFULLY READ BY ALL INDIVIDUALS WHO HAVE OR WILL HAVE
THE RESPONSIBILITY FOR INSTALLING, USING OR SERVICING THIS PRODUCT. Like any piece
of complex equipment, this product will perform as designed only if installed, used and serviced in
accordance with the manufacturer's instructions. OTHERWISE, IT COULD FAIL TO PERFORM AS
DESIGNED AND PERSONS WHO RELY ON THIS PRODUCT FOR THEIR SAFETY COULD
SUSTAIN SEVERE PERSONAL INJURY OR DEATH.
The warranties made by Mine Safety Appliances Company with respect to these Products are voided if the
products are not installed, used and serviced in accordance with the instructions in this user guide. Please
protect yourself and others by following them. We encourage our customers to write or call regarding this
equipment prior to use or for any additional information relative to use or repair.
Instrument Division 1-800-MSA-INST or FAX (412) 776-9783
MSA International (412) 967-3228 or FAX (412) 967-3373
In Canada 1-800-267-0672 or FAX (905) 238-4155
© Mine Safety Appliances Company 1996 - All Rights Reserved
MINE SAFETY APPLIANCES COMPANY
PITTSBURGH, PENNSYLVANIA 15230
REV 1.2
April 2005
10063481
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Related Manuals for MSA ZGARD S
Summary of Contents for MSA ZGARD S
- Page 1 Instrument Division 1-800-MSA-INST or FAX (412) 776-9783 MSA International (412) 967-3228 or FAX (412) 967-3373 In Canada 1-800-267-0672 or FAX (905) 238-4155 © Mine Safety Appliances Company 1996 - All Rights Reserved...
- Page 2 Permanent Instrument Warranty 1. Warranty- Seller warrants that this product SPECIFICALLY DISCLAIMS will be free from mechanical defect or faulty WARRANTY OF MERCHANTABILITY OR OF workmanship for a period of eighteen (18) FITNESS FOR A PARTICULAR PURPOSE. months from date of shipment or one (1) year from installation, whichever...
- Page 3 These codes include, but are not limited to, the Do not paint the ZGARD S & DS National Fire Prevention Code and gas sensors. National Electric Code. The only absolute method to assure Do not exceed the relay contact...
- Page 4 ZGARD S Carbon Monoxide Solid-State (SS) Sensor, 4-20mA Output, Sensor Calibration RS485 Output, Solid-State (SS) Sensor Calibration Section 5 ZGARD S & DS Carbon Monoxide Electrochemical (EC) Sensor, 4-20mA Output, Sensor Calibration RS485 Output, Electrochemical (EC) Sensor Calibration Section 6 ZGARD S &...
- Page 5 DS sensor is designed to detect the presence of Carbon Monoxide and Nitrogen Dioxide in air. The ZGARD S & DS sensors are available with two output versions, a 4-20mA analogue output or an addressable RS485 digital signal. The ZGARD S & DS, RS485 version is specifically designed to operate with any MSA ZGARD C 485 Controllers, operating as a system.
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Page 6: Installation Guidelines
Wiring Connections: Before putting a ZGARD S & DS Sensor into operation, determine the elevation and the number of gas sensors according to the required application. Also refer to the ZGARD S & DS sensor(s) Installation Outline drawings located in the back of this manual, which provides important information regarding;... -
Page 7: General Information
4-20mA analogue output or provide a means of driving the output to 0% or 100% full- a RS485 digital signal. The ZGARD S & DS, RS485 scale. When the onboard test jumpers are inserted, the... -
Page 8: Installation And Setup
ZGARD S & DS Sensors Installation and Setup H2 (H1) RS485 ADDRESS 1 – 127 On the main circuit of every ZGARD S & DS (SET BY BINARY) Sensor is a set of RS485 Selection Jumpers setting each sensor binary address code. The H2 jumpers are located on the ZGARD S &... - Page 9 Section 3 ZGARD S & DS Sensors Installation and Setup Solid-State (SS) Sensors, Output Test: Each TEST FULL SCALE (100% OUTPUT) ZGARD Sensor provides a means of driving output 100% full-scale. TEST HALF SCALE (50% OUTPUT) Respectively, when the onboard test jumpers...
- Page 10 Use calibration gases of known and certified concentrations. Check the expiry date on the gas cylinders. The ZGARD S sensor is factory calibrated for 100 or 200ppm Carbon Monoxide, which represents 0 to 100% full scale. The 4-20mA output current between the connection terminals O/P and COM labeled 4-20mA output represents 0 to 100 % full-scale.
- Page 11 Use calibration gases of known and certified concentrations. Check the expiry date on the gas cylinders. The ZGARD S sensor is factory calibrated for 100 or 200ppm Carbon Monoxide, which represents 0 to 100% full scale. The output voltage of 1 to 5Vdc between the test points TPCAL and TPCOM represents 0 to 100 % full-scale.
- Page 12 Use calibration gases of known and certified concentrations. Check the expiry date on the gas cylinders. The ZGARD S & DS sensor is factory calibrated for 100 or 200ppm Carbon Monoxide, which represents 0 to 100% full scale. The 4-20mA output current between the connection terminals O/P and COM represents 0 to 100 % full-scale.
- Page 13 Use calibration gases of known and certified concentrations. Check the expiry date on the gas cylinders. The ZGARD S & DS sensor is factory calibrated for 100 or 200ppm Carbon Monoxide, which represents 0 to 100% full scale. The output voltage of 1 to 5Vdc between the test points TPCAL and TPCOM represents 0 to 100 % full-scale.
- Page 14 Use calibration gases of known and certified concentrations. Check the expiry date on the gas cylinders. The ZGARD S & DS sensor is factory calibrated for 0-10ppm Nitrogen Dioxide, which represents 0 to 100% full scale. The 4-20mA output current between the connection terminals O/P and COM represents 0 to 100 % full-scale.
- Page 15 Use calibration gases of known and certified concentrations. Check the expiry date on the gas cylinders. The ZGARD S & DS sensor is factory calibrated for 0-10ppm Nitrogen Dioxide, which represents 0 to 100% full scale. The output voltage of 1 to 5Vdc between the test points TPCAL and TPCOM represents 0 to 100 % full-scale.
- Page 16 Use calibration gases of known and certified concentrations. Check the expiry date on the gas cylinders. The ZGARD S sensor is factory calibrated for 0-1,000ppm Rx, which represents 0 to 100% full scale. The 4-20mA output current between the connection terminals O/P and COM labeled 4-20mA output represents 0 to 100 % full-scale.
- Page 17 Use calibration gases of known and certified concentrations. Check the expiry date on the gas cylinders. The ZGARD S sensor is factory calibrated for 1000ppm Rx, which represents 0 to 100% full scale. The output voltage of 1 to 5Vdc between the test points TPCAL and TPCOM represents 0 to 100 % full-scale.
- Page 18 Use calibration gases of known and certified concentrations. Check the expiry date on the gas cylinders. The ZGARD S sensor is factory calibrated for 0-500ppm Ammonia, which represents 0 to 100% full scale. The 4-20mA output current between the connection terminals O/P and COM labeled 4-20mA output represents 0 to 100 % full-scale.
- Page 19 Use calibration gases of known and certified concentrations. Check the expiry date on the gas cylinders. The ZGARD S sensor is factory calibrated for 1000ppm Rx, which represents 0 to 100% full scale. The output voltage of 1 to 5Vdc between the test points TPCAL and TPCOM represents 0 to 100 % full-scale.
- Page 20 Note! Check the binary code Jumper H1 on EC version and H2 on the SS version. They must be correctly positioned to reflect the unique address number of each remote sensor connected to MSA ZGARD C Series Controllers. Refer to the RS485 Address Code Chart in Section 3.
- Page 21 Sensors. Failure to do so may seriously impair instrument performance. Repair or alteration of the ZGARD S & DS gas sensors, beyond the scope of these maintenance instructions or by anyone other than authorized MSA service personnel, could cause the product to fail to perform as designed, and persons who rely on this product for their safety could sustain serious personal injury or death.
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