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MSA 

Permanent Instrument Warranty 

 

1. Warranty- 

Seller warrants that this product 

will be free from mechanical defect or faulty 
workmanship for a period of eighteen (18) 
months from date of shipment or one (1) year 
from installation, whichever occurs first, 
provided it is maintained and used in 
accordance with Seller’s instructions and/or 
recommendations. This warranty does not 
apply to expendable or consumable parts 
whose normal life expectancy is less than one 
(1) year such as, but not limited to, non-
rechargeable batteries, filament units, filter, 
lamps, fuses etc. The Seller shall be released 
from all obligations under this warranty in the 
event repairs or modifications are made by 
persons other than its own or authorized 
service personnel or if the warranty claim 
results from physical abuse or misuse of the 
product. No agent, employee or representative 
of the Seller has any authority to bind the 
Seller to any affirmation, representation or 
warranty concerning the product. Seller makes 
no warranty concerning components or 
accessories not manufactured by the Seller, 
but will pass on to the Purchaser all warranties 
of manufacturers of such components. 

THIS 

WARRANTY IS IN LIEU OF ALL OTHER 
WARRANTIES, EXPRESSED, IMPLIED OR 
STATUTORY, AND IS STRICTLY LIMITED 
TO THE TERMS HEREOF. SELLER 

SPECIFICALLY DISCLAIMS ANY 
WARRANTY OF MERCHANTABILITY OR OF 
FITNESS FOR A PARTICULAR PURPOSE.

 

 

2. Exclusive Remedy-

 It is expressly agreed 

that Purchaser’s sole and exclusive remedy for 
breach of the above warranty, for any tortious 
conduct of Seller, or for any other cause of 
action, shall be the repair and/or replacement 
at Seller’s option, of any equipment or parts 
thereof, which after examination by Seller is 
proven to be defective. Replacement 
equipment and/or parts will be provided at no 
cost to Purchaser, F.O.B. Seller’s Plant. 
Failure of Seller to successfully repair any 
nonconforming product shall not cause the 
remedy established hereby to fail of its 
essential purpose. 
 

3. Exclusion of Consequential Damage- 

Purchaser specifically understands and agrees 
that under no circumstances will seller be liable 
to purchaser for economic, special, incidental 
or consequential damages or losses of any 
kind whatsoever, including but not limited to, 
loss of anticipated profits and any other loss 
caused by reason of non operation of the 
goods. This exclusion is applicable to claims 
for breach of warranty, tortuous conduct or any 
other cause of action against seller. 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 

Summary of Contents for ZGARD DS

Page 1: ...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 In...

Page 2: ...nufacturers of such components THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES EXPRESSED IMPLIED OR STATUTORY AND IS STRICTLY LIMITED TO THE TERMS HEREOF SELLER SPECIFICALLY DISCLAIMS ANY WARRANTY OF MERCHANTABILITY OR OF FITNESS FOR A PARTICULAR PURPOSE 2 Exclusive Remedy It is expressly agreed that Purchaser s sole and exclusive remedy for breach of the above warranty for any tortious conduct o...

Page 3: ...e included as part of the installation and as a routine inspection of the system 5 Use only genuine MSA replacement parts when performing any maintenance procedures provided in this manual 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 p...

Page 4: ...lid State SS Sensor 4 20mA Output Sensor Calibration 8 0 RS485 Output Solid State SS Sensor Calibration 8 1 Section 9 ZGARD S DS Sensors Start Up Procedure 9 0 Section 10 Parts List 10 0 Drawings 106890B CO SS 4 20mA Output Sensor Circuit Board Layout 106891B CO SS RS485 Output Sensor Circuit Board Layout 106892B CO NO2 EC 4 20mA Output Sensor Circuit Board Layout 106893B CO NO2 EC RS485 Output Se...

Page 5: ...ro and Span Potentiometers Zero and Span Potentiometers Zero and Span Potentiometers Zero and Span Potentiometers Zero and Span Potentiometers Cut Off Feature 17ppm NONE NONE 65ppm 50ppm Periodic inspections and calibration This unit requires calibration The calibration frequency will be a function of the operating conditions including operating under extreme temperatures exposure to contaminants ...

Page 6: ...manual which provides important information regarding Operating power Required conductors and wire size 4 20mA and RS485 Network wiring connection U C CA AU UT TI IO ON N 1 When wiring the sensor disconnect the main power to prevent bodily harm 2 Do not use the sensor power when connecting any external devices 3 Use shielded cable for wiring installation Do not install low voltage signal cable in ...

Page 7: ...ure Standard NEMA 4X Fiberglass Dimensions 7 0 H 178 mm x 10 5 W 267 mm x 4 5 D 114 mm Weight 1 1kg 2 45 lbs Certification ENTELA to CSA Standards Sensor Outputs The ZGARD S DS Sensors provide two sensor output options a 4 20mA analogue output or a RS485 digital signal The ZGARD S DS RS485 sensor includes an identifiable digital signature recognized by any MSA ZGARD C Series Controllers Sensing Te...

Page 8: ...D C Series controller Installation Outline drawing for further details 3 1 H2 H1 RS485 ADDRESS 1 127 1 1 SET BY BINARY 2 2 3 4 4 8 5 16 6 32 7 64 Binary 1 2 4 8 16 32 64 Address H2 1 H1 1 H2 2 H1 2 H2 3 H1 3 H2 4 H1 4 H2 5 H1 5 H2 6 H1 6 H2 7 H1 7 1 IN OUT OUT OUT OUT OUT OUT 2 OUT IN OUT OUT OUT OUT OUT 3 IN IN OUT OUT OUT OUT OUT 4 OUT OUT IN OUT OUT OUT OUT 5 IN OUT IN OUT OUT OUT OUT 6 OUT IN ...

Page 9: ...nerates the selected output signal This feature is useful for testing remote devices which may be connected to the sensor output Refer to the associated sensor Installation Outline Drawing for further details Electrochemical EC RS485 Output Sensors 0 Output Test Each ZGARD Sensor provides a means of driving the output to 0 full scale Respectively when the onboard test jumper is inserted the sensor...

Page 10: ...n this product for their safety could sustain severe personal injury or death ZERO Calibration 4 Join a 0 25 l m flow controller onto a ZERO gas cylinder Insert a calibration adapter into thread port provided on the protective cover located on the front plate 5 Connect the Tygon tubing between the inlet of the gas humidification assembly and the calibration cylinder flow controller outlet port 6 C...

Page 11: ...ct for their safety could sustain severe personal injury or death ZERO Calibration 4 Join a 0 25 l m flow controller onto a ZERO gas cylinder Insert a calibration adapter into thread port provided on the protective cover located on the front plate 5 Connect the Tygon tubing between the inlet of the gas humidification assembly and the calibration cylinder flow controller outlet port 6 Connect the o...

Page 12: ...stain severe personal injury or death ZERO Calibration 3 Attach a 0 25 l m flow controller onto a ZERO gas cylinder On the ZGARDS S Sensor insert a calibration adapter into thread port provided on the protective cover located on the front plate The ZGARD DS Sensor is provided with standard calibration adapters 4 Connect Tygon tubing to the outlet of the flow controller and then slip the open end o...

Page 13: ...ustain severe personal injury or death ZERO Calibration 3 Attach a 0 25 l m flow controller onto a ZERO gas cylinder On the ZGARDS S Sensor insert a calibration adapter into thread port provided on the protective cover located on the front plate The ZGARD DS Sensor is provided with standard calibration adapters 4 Connect Tygon tubing to the outlet of the flow controller and then slip the open end ...

Page 14: ...tain severe personal injury or death ZERO Calibration 3 Attach a 0 25 l m flow controller onto a ZERO gas cylinder On the ZGARDS S Sensor insert a calibration adapter into thread port provided on the protective cover located on the front plate The ZGARD DS Sensor is provided with standard calibration adapters 4 Connect Tygon tubing to the outlet of the flow controller and then slip the open end on...

Page 15: ...stain severe personal injury or death ZERO Calibration 3 Attach a 0 25 l m flow controller onto a ZERO gas cylinder On the ZGARDS S Sensor insert a calibration adapter into thread port provided on the protective cover located on the front plate The ZGARD DS Sensor is provided with standard calibration adapters 4 Connect Tygon tubing to the outlet of the flow controller and then slip the open end o...

Page 16: ...on this product for their safety could sustain severe personal injury or death ZERO Calibration 4 Join a 0 25 l m flow controller onto a ZERO gas cylinder Insert a calibration adapter into thread port provided on the protective cover located on the front plate 5 Connect the Tygon tubing between the inlet of the gas humidification assembly and the calibration cylinder flow controller outlet port 6 ...

Page 17: ...duct for their safety could sustain severe personal injury or death ZERO Calibration 4 Join a 0 25 l m flow controller onto a ZERO gas cylinder Insert a calibration adapter into thread port provided on the protective cover located on the front plate 5 Connect the Tygon tubing between the inlet of the gas humidification assembly and the calibration cylinder flow controller outlet port 6 Connect the...

Page 18: ...is product for their safety could sustain severe personal injury or death ZERO Calibration 4 Join a 0 25 l m flow controller onto a ZERO gas cylinder Insert a calibration adapter into thread port provided on the protective cover located on the front plate 5 Connect Tygon tubing to the outlet of the flow controller and then slip the open end on the calibration adapter 6 Turn ON the flow controller ...

Page 19: ...r their safety could sustain severe personal injury or death ZERO Calibration 4 Join a 0 25 l m flow controller onto a ZERO gas cylinder Insert a calibration adapter into thread port provided on the protective cover located on the front plate 5 Connect Tygon tubing to the outlet of the flow controller and then slip the open end on the calibration adapter 6 Turn ON the flow controller valve and all...

Page 20: ...mote sensor connected to MSA ZGARD C Series Controllers Refer to the RS485 Address Code Chart in Section 3 ZGARD S DS 4 20mA SENSOR 9 Apply the appropriate operating power to the sensor 9 The green Sensor OK LED Indicator on front of the sensor should be ON after a 30 second delay This will also indicate that the device is operating properly 9 Allow a few minutes for the sensor to stabilize 9 Inse...

Page 21: ...ment Electrochemical EC NO2 Cell Assembly Replacement Solid State SS CO Cell Assembly Replacement Solid State SS Rx Cell Assembly Replacement Solid State SS Ammonia Cell Assembly When ordering replacement parts please state the MSA P N and S N of unit U WARNING Use only genuine MSA replacement parts when performing any maintenance on the ZGARD S DS Sensors Failure to do so may seriously impair ins...

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