ALTAIR
®
4XR
42
Maintenance
US
4.2
Live Maintenance Procedure - Replacing and Adding a Sensor
WARNING!
Remove and reinstall sensors carefully, ensuring that the components are not damaged; otherwise
device intrinsic safety may be adversely affected, wrong readings could occur, and persons relying on
this product for their safety could sustain serious personal injury or death.
WARNING!
Before handling the PC board, ensure you are properly grounded; otherwise, static charges from your
body could damage the electronics. Such damage is not covered by the warranty. Grounding straps
and kits are available from electronics suppliers.
To add a sensor to an device that is not already equipped with a full array of sensors, remove the
sensor plug from in front of the formerly unused sensor housing.
(1)
Verify that the device is turned off.
(2)
Remove the four case screws, and remove the case front while carefully noting the orientation
of the sensor gasket.
(3)
Gently lift out and properly discard the sensor to be replaced.
a) Using fingers only, gently remove the toxic, combustible, or oxygen sensor by gently rocking
it while pulling it straight from its socket.
(4)
Carefully align the new sensor contact pins with the sockets on the printed circuit board and
pressing it firmly in place.
a) Ensure tab on sensor aligns with groove at top of holder.
b) Insert the toxic sensor by placing it in the left-hand position of the sensor holder.
c) Insert the O
2
sensor by placing it in the right-hand position of the sensor holder.
d) Insert the combustible sensor by placing it in the middle position of the sensor holder.
e) If any sensor is not to be installed, ensure that a sensor plug is installed properly in its place.
(5)
Reinstall the case front.
(6)
Reinstall the screws.
a) Tighten each screw with a torque value of 6.00
in-lbs (+/- 0.25 in-lbs) or 0
.
678
Nm
(+/- 0.028 Nm) to maintain the device's IP 68 rating.
(7)
Turn on the device.
While device case is open, do not touch any internal components with metallic/conduc-
tive objects or tools.
Damage to the device can occur.
If the sensor replaced is the same as the previous
sensor:
If the sensor replaced is not the same as the
previous sensor or this sensor channel was deac-
tivated:
•
The device starts up normally.
•
The device automatically senses that a new
sensor is installed and displays the "
SENSOR
DSCVRY
" screen.
•
The device automatically senses the differ-
ence and displays "
SENSOR CHANGE
".
•
"
ACCEPT
?" appears on the display.
–
Accept the change with
button or
reject with
button.
–
Go into the sensor setup and turn on
the appropriate sensor (
chapter 3.4
"Sensor Setup").
Summary of Contents for ALTAIR 4XR
Page 1: ...MSAsafety com Operating Manual ALTAIR 4XR Multigas Detector Order No 10175896 00 ...
Page 52: ...ALTAIR 4XR 52 Appendix US 7 Appendix 7 1 Start Up Sequence Power on ...
Page 53: ...ALTAIR 4XR 53 Appendix US 7 2 Fresh Air Setup FAS ...
Page 55: ...ALTAIR 4XR 55 Appendix US ...
Page 56: ...ALTAIR 4XR 56 Appendix US 7 4 Bump Test ...
Page 57: ...ALTAIR 4XR 57 Appendix US 7 5 Options Setup ...
Page 58: ...ALTAIR 4XR 58 Appendix US 7 6 Sensor Setup ...
Page 59: ...ALTAIR 4XR 59 Appendix US 7 7 Calibrations ...
Page 60: ...ALTAIR 4XR 60 Appendix US ...
Page 61: ...ALTAIR 4XR 61 Appendix US 7 8 Alarm Setup ...
Page 62: ...ALTAIR 4XR 62 Appendix US 7 9 Time and Date Setup ...
Page 63: ...sales norrscope com ALTAIR 4XR 63 Appendix US 7 10 Bluetooth Setup ...
