■ Environmental Characteristics
Item
D8M-A1
D8M-D1
D8M-D2
D8M-D82
D8M-R1
Insulation resistance
100 m ? min., 250 VDC between lead terminals and the base
Dielectric strength
250 VAC, 50/60 Hz for 1 minute between lead terminals and the base
500 VAC, 50/60 Hz for
1 minute between ter-
minals and the base
Degree of protection
Pressure port
NA
4 mm OD
IP40
3 mm OD
IP40
3 mm OD
IP40
6 mm OD
IP40
4 mm OD
Connection method
Solder on PC boards Wiring connector on
Wiring connector on
Three AWG26 wires, Wiring connector on
top
top
115 mm long
bottom
Weight
NA
NA
NA
NA
NA
Material
Operation
PBT (polybutylene terephthalate)
■ Response Timing Charts
D8M-D1, D2, D82
■ Interface Circuit Diagram
D8M-R1
Model
D8M-D1
D8M-D2
D8M-D82
T1
2.5 ms min.
3.0 ms min.
1.5 ms min.
T2
18 ms max.
32 ms max.
30 ms max.
T3
100 ms min.
250 ms min.
45 ms max.
Legend: T1, Pressure measurement time
T2, Response time
T3, Electrical discharge time
D8M-R1
Response time to 90% of 0.2kPa
Max. 3 seconds (excluding time for pressure change)
Application Examples
Compact D8M solid state pressure sensors provide reliable detection
for gas and air inflow for burner controls in water heaters, furnaces
and other gas-fired devices. They can also be used in
gas usage meters.
Solid State Pressure Sensors D8M
3
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