MSR ELECTRONIC PolyGard 2 MC2 - Page 27

User Manual PolyGard
®
2 Sensors 2023-11 Page 27 | 40
Gas type
Ordering No.
Measuring range
Accuracy
Display resolution
Repeatability
Plastic housing
Stainless steel housing (SC2)
Zero-point
variation
Drift in air
Relative
gas density
1
t
90
time
Reaction time
t
90
time
Reaction time
SC2-/
MC2-X-
% LEL / ppm
± % sig.
% LEL /
ppm
< ± %
sig.
≤ sec.
≤ sec.
≤ sec.
≤ sec.
± % LEL
< % /
month
Air = 1
CH
4
P3400-A
0–100 % LEL
1 (CH
4
)
0.1
2 (CH
4
)
15
5
28
5
0.5 (CH
4
)
2 (CH
4
)
0.56
LPG
P3402-A
0–100 % LEL
1 (CH
4
)
0.1
2 (CH
4
)
n.d.
5
n.d.
10
0.5 (CH
4
)
2 (CH
4
)
n.d.
NH
3
P3408-A
0–100 % LEL
1 (CH
4
)
0.1
2 (CH
4
)
20
5
40
15
0.5 (CH
4
)
2 (CH
4
)
0.60
NH
3
P3408-B
0–20 % LEL
1 (CH
4
)
0.1
2 (CH
4
)
10
5
25
10
0.5 (CH
4
)
2 (CH
4
)
0.60
C
2
H
4
P3410-A
0–100 % LEL
1 (CH
4
)
0.1
2 (CH
4
)
n.d.
5
n.d.
10
0.5 (CH
4
)
2 (CH
4
)
0.97
C
6
H
12
P3415-A
0–100 % LEL
1 (CH
4
)
0.1
2 (CH
4
)
n.d.
5
n.d.
10
0.5 (CH
4
)
2 (CH
4
)
2.90
C
2
H
6
P3420-A
0–100 % LEL
1 (CH
4
)
0.1
2 (CH
4
)
n.d.
5
n.d.
10
0.5 (CH
4
)
2 (CH
4
)
1.05
C
2
H
5
OH
P3425-A
0–100 % LEL
1 (CH
4
)
0.1
2 (CH
4
)
n.d.
5
n.d.
10
0.5 (CH
4
)
2 (CH
4
)
1.59
C
4
H
8
O
2
P3427-A
0–100 % LEL
1 (CH
4
)
0.1
2 (CH
4
)
n.d.
5
n.d.
10
0.5 (CH
4
)
2 (CH
4
)
3.04
C
6
H
6
P3430-A
0–100 % LEL
1 (CH
4
)
0.1
2 (CH
4
)
n.d.
5
n.d.
10
0.5 (CH
4
)
2 (CH
4
)
2.70
C
6
H
14
P3435-A
0–100 % LEL
1 (CH
4
)
0.1
2 (CH
4
)
n.d.
5
n.d.
10
0.5 (CH
4
)
2 (CH
4
)
2.97
H
2
P3440-A
0–100 % LEL
1 (CH
4
)
0.1
1 (CH
4
)
10
5
10
10
0.5 (CH
4
)
2 (CH
4
)
0.07
C
6
H
12
O
2
P3448-A
0–100 % LEL
1 (CH
4
)
0.1
2 (CH
4
)
n.d.
5
n.d.
10
0.5 (CH
4
)
2 (CH
4
)
4.01
CH
3
OH
P3450-A
0–100 % LEL
1 (CH
4
)
0.1
2 (CH
4
)
n.d.
5
n.d.
10
0.5 (CH
4
)
2 (CH
4
)
1.10
C
4
H
8
O
P3458-A
0–100 % LEL
1 (CH
4
)
0.1
2 (CH
4
)
n.d.
5
n.d.
10
0.5 (CH
4
)
2 (CH
4
)
2.48
C
4
H
10
P3460-A
0–100 % LEL
1 (CH
4
)
0.1
2 (CH
4
)
n.d.
5
n.d.
15
0.5 (CH
4
)
2 (CH
4
)
2.08
C
4
H
10
O
P3468-A
0–100 % LEL
1 (CH
4
)
0.1
2 (CH
4
)
n.d.
5
n.d.
10
0.5 (CH
4
)
2 (CH
4
)
2.55
C
8
H
18
P3470-A
0–100 % LEL
1 (CH
4
)
0.1
2 (CH
4
)
n.d.
5
n.d.
10
0.5 (CH
4
)
2 (CH
4
)
3.94
C
5
H
10
P3472-A
0–100 % LEL
1 (CH
4
)
0.1
2 (CH
4
)
n.d.
5
n.d.
10
0.5 (CH
4
)
2 (CH
4
)
2.42
C
3
H
6
O
2
P3473-A
0–100 % LEL
1 (CH
4
)
0.1
2 (CH
4
)
n.d.
5
n.d.
10
0.5 (CH
4
)
2 (CH
4
)
2.56
C
5
H
12
P3475-A
0–100 % LEL
1 (CH
4
)
0.1
2 (CH
4
)
n.d.
5
n.d.
10
0.5 (CH
4
)
2 (CH
4
)
2.49
C
3
H
8
P3480-A
0–100 % LEL
1 (CH
4
)
0.1
2 (CH
4
)
20
5
37
15
0.5 (CH
4
)
2 (C
3
H
8
)
1.55
C
3
H
8
P3480-B
0–30 % LEL
2 (C
3
H
8
)
0.01
2 (C
3
H
8
)
15
5
40
10
0.5 (C
3
H
8
)
2 (C
3
H
8
)
1.55
C
3
H
8
P3480-C
0–5000 ppm
2 (C
3
H
8
)
1 (ppm)
2 (C
3
H
8
)
15
5
40
10
0.5 (C
3
H
8
)
2 (C
3
H
8
)
1.55
C
3
H
6
P3481-B
0–30 % LEL
2 (C
3
H
6
)
0.01
5 (C
3
H
6
)
15
5
30
5
1.0 (C
3
H
6
)
2 (C
3
H
6
)
1.48
C
3
H
8
O
P3482-A
0–100 % LEL
1 (CH
4
)
0.1
2 (CH
4
)
n.d.
5
n.d.
10
0.5 (CH
4
)
2 (CH
4
)
2.07
C
3
H
6
O
P3485-A
0–100 % LEL
1 (CH
4
)
0.1
2 (CH
4
)
n.d.
5
n.d.
10
0.5 (CH
4
)
2 (CH
4
)
2.00
C
7
H
8
P3490-A
0–100 % LEL
1 (CH
4
)
0.1
2 (CH
4
)
n.d.
5
n.d.
10
0.5 (CH
4
)
2 (CH
4
)
3.18
C
7
H
16
P3491-A
0–100 % LEL
1 (CH
4
)
0.1
2 (CH
4
)
n.d.
5
n.d.
10
0.5 (CH
4
)
2 (CH
4
)
3.46
C
4
H
6
P3494-A
0–100 % LEL
1 (CH
4
)
0.1
2 (CH
4
)
n.d.
5
n.d.
10
0.5 (CH
4
)
2 (CH
4
)
1.92
C
9
H
20
P3495-A
0–100 % LEL
1 (CH
4
)
0.1
2 (CH
4
)
n.d.
5
n.d.
10
0.5 (CH
4
)
2 (CH
4
)
4.43
Petrol
Vapours
P3496-A
0–100 % LEL
1 (CH
4
)
0.1
2 (CH
4
)
n.d.
5
n.d.
10
0.5 (CH
4
)
2 (CH
4
)
n.d.
1
The recommended mounting height depends on the relative gas density of the type of gas to be monitored. Depend-
ing on the relative gas density (d), the following recommendation therefore applies:
d ≤ 0.85: Mounting 0.3–0.5 m below the ceiling
0.85 < d < 1.15: Mounting at 1.2–1.8 m height
d ≥ 1.15: Mounting 0.3–0.5 m above the floor