WatchGas QGM Calibration

This document describes the preferred calibration procedure of the WatchGas QGM. If you require any assistance, feel free
to contact us at info@watchgas.nl
Equipment
To calibrate the WatchGas QGM the follow equipment is needed:
• WatchGas QGM
• WatchGas QGM Calibration adapter
• 0.5 L/min regulator
• Last-O-More hose
• WatchGas IR link (optional)
• Calibration gas
The use of the WatchGas IR link and IR link software is not required, but it's certainly recommended. Span values can
only be changed using the IR link software.
The WatchGas QGM can only measure O
Note that these gases are available in a multi-gas mixture. Calibrating using a multi-gas mixture is most cost and
time efficient.
Adequate safety measures should be taken when working with these type of gases. Avoid personal exposure at all
times by working under a fume hood and/or wearing personal protective equipment.
List with commonly used calibration gases
Description
18%O / 2.2%CH / 50CO / 10H
2 4
18%O / 2.2%CH / 50CO / 10H
2 4
18%O / 2.5%CH / 2%CO
2 4
100ppm I-C H in Air
4 8
100ppm I-C H in Air
4 8
18%O / 2.2%CH / 50CO / 10H
2 4
18%O / 2.2%CH / 0.5%CO
2 4
18%O / 2.5%CH / 100CO / 25H
2 4
100% N (UHP)
2
18%O / 2.2%CH / 0.5%CO
2 4
100ppm I-C H in Air
4 8
50ppm NH in N
3 2
20.9% / 1.1%CH / 200ppm CO in N
4
15%O / 1.45%CH /2.5%CO
2 4
18%O / 2.2%CH / 100CO / 25H
2 4
15%O / 1.45%CH / 60CO / 20H
2 4
18%O / 2.2%CH / 100CO / 25H
2 4
18%O / 2.2CH / 50CO in N
2 4
10ppm H S in N
2 2
25ppm H S in N
2 2
WatchGas is dedicated to continuously improving its products. Therefore, the specifications and features mentioned in this datasheet are subject to change without prior notice.
WatchGas B.V. | Klaverbaan 121 | 2908 KD Capelle aan den IJssel | The Netherlands | +31 (0)85 01 87 709 | www.watchgas.eu | info@watchgas.eu
, LEL, CO and H
2
S in N
2 2
S in N
2 2
/ 50CO / 15H S in N
2 2 2
S in N
2 2
/ 100CO / 25H S in N
2 2 2
S in N
2 2
/ 100CO / 25H S in N
2 2 2
2
/ 60CO / 20H S in N
2 2 2
S in N
2 2
S in N
2 2
S in N
2 2
2
WatchGas Application Note 6 Part 2: WatchGas QGM Calibration v1.1 19-01-21
WatchGas QGM Calibration
S. Please refer to our well-priced list of calibration gases.
2
Size Article Number
116L CAL-C017064
34L CAL-C009147
58L CAL-C015013
34L CAL-C008920
116L CAL-C006392
58L CAL-C011916
58L CAL-C012017
34L CAL-A1069841
116L CAL-A0961956
34L CAL-C009266
58L CAL-C015004
58L CAL-C011793
116L CAL-C019604
58L CAL-C012032
58L CAL-C011921
34L CAL-C009154
34L CAL-A0915728
116L CAL-A0975762
116L CAL-C017065
58L CAL-C011126
© 2021 WatchGas B.V.
Application Note 6 Part 2