SICK DUSTHUNTER T User Manual

Operating Instructions GM35
Probe Model
Maintenance
8009389/07-2006 © SICK MAIHAK GmbH • Germany · All rights reserved 75
8.6 Filter box measurement for checking the gas ducts of CO and
CO
2
(up to 15 vol.% x m)
The gas filter box is used for checking the CO and CO
2
measurement channel of the GM35
with test gases; with CO
2
up to 15 vol.% x m).
Prerequisites
Required components
• Reflector housing with gold-plated hollow triple reflector
(order no. 2 030 206)
• Filter box adapter plate with cut-out Chapter for the humidity sensor (front of the SR unit)
Note The CO measured values are displayed on the evaluation unit in mg/m
3
x m (operation),
The CO
2
measured values are displayed in g/m
3
x m (operation)
8.6.1 Determining the required test gas concentration
1. General calculation:
2. Calculating the setpoint values for all 6 chamber lengths
8.6.2 Carrying out the measurement
‡ Open the SR unit and swing it to the side.
‡ Attach the filter box with the adapter plate to the SR unit and secure using quick-release
locks. Take care not to damage the humidity sensor of the SR unit.
‡ Install the reflector for the GM35.
Comp. Test gas concentration
Filter chamber lengths
25 mm
(0.98 in)
50 mm
(1.97 in)
75 mm
(2.95 in)
100 mm
(3.94 in)
125 mm
(4.92 in)
150 mm
(5.90 in)
CO
CO
2
Test gas conc. [ppm or vol.%]
Meas. range [ppm or vol.%] actual meas. path [m]•
0.15 m max. filter box length
-------------------------------------------------------------------------------------------------------------------------------------
=
CO
Set
Test gas conc. [ppm] 1
œœ
25•
act. air pressure[hPa]
1013
-----------------------------------------------------
• L [mm]
Cell
• 0.001•=
CO
2Set
""Test gas conc. [vol.%] 1.963
273
353
----------
••
act. air pressure[hPa]
1013
-----------------------------------------------------
• L [mm]
Cell
• 0.001•=

SICK DUSTHUNTER T Specifications

General

Brand	SICK
Model	DUSTHUNTER T
Category	Measuring Instruments
Language	English