MSR ELECTRONIC PolyGard 2 MC2 - Page 30

User Manual PolyGard
®
2 Sensors 2023-11 Page 30 | 40
Gas type
Ordering No.
Measuring range
1
Accuracy
Display resolution
Repeatability
Plastic housing
Stain- less steel housing (SC2)
Zero-point variation
Drift in air
t
90
time
Reaction time
t
90
time
Reaction time
SC2- /
MC2-X-
% vol
± % sig.
ppm
< ± % sig.
≤ sec.
≤ sec.
≤ sec.
≤ sec.
± ppm
< % /
month
O
2
E1195-A2
0–25
2
0.01
n.d.
15
5
39
10
n.d.
0.4
O
2
E1195-A3
0–25
2
0.01
n.d.
15
5
39
10
n.d.
0.6
O
2
E1195-A5
0–25
2
0.01
n.d.
15
5
39
10
n.d.
0.4
O
2
E1195-A7
0–25
2
0.01
n.d.
15
5
39
10
n.d.
0.4
Gas type
Ordering No.
Measuring range
1
Temperature range
Humidity range non-condensing
Pressure range
Storage tempera- ture range
2
Life time
3
in air
Relative gas den- sity
4
Calibration inter- val
5
SC2- /
MC2-X-
% vol
°C
% RH
kPa
°C
> years
Air = 1
Months
O
2
E1195-A2
0–25
-40 / +50
5–95
80-120
0-20
2
1.11
6
O
2
E1195-A3
0–25
-40 / +50
5–95
80-120
0-20
3
1.11
6
O
2
E1195-A5
0–25
-40 / +50
15–90
80-120
0-20
5
1.11
12
O
2
E1195-A7
0–25
-40 / +50
15–90
80-120
0-20
7
1.11
12
1
Exceeding the measuring range limit will include a risk of damaging the sensor element.
2
A deviating storage temperature can have a negative effect on sensitivity and service life.
3
Expected service life for normal ambient conditions
4
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
5
Manufacturer-recommended calibration intervals for normal environmental conditions.