Solid State Pressure Sensors
D8M
Solid State Pressure Sensors with
Analog, Pulse or Frequency Outputs
• Compact housing measures 30L x 30W x 12.4H mm.
• Accept 4 mm OD tubing (D8M-A1, -R1); 3 mm OD tubing
for (D8M-D1, -D2), 6 mm OD tubing for D8M-D82.
• Chemical-resistant plastic (PBT) body.
• Metal shield mounted version (D8M-D82) available.
• IP40 enclosure rating for embedded applications.
• Pre-wired and PCB mounting models available.
Ordering Information
Operating pressure
range
0 to 4.9 kPa
(0 to 0.71 psi)
0 to 5.88 kPa
(0 to 0.85 psi)
0 to 5.88 kPa
(0 to 0.85 psi)
0 to 4.9 kPa
(0 to 0.71 psi)
0 to 196.13 Pa
(0 to 0.028 psi)
Output signal
Analog,
15 to 1247 mV
Pulse count,
1 pulse/9.81 Pa
(1/0.0014 psi)
Pulse count,
1 pulse/9.81 Pa
(1/0.0014 psi)
Pulse count,
1 pulse/9.81 Pa
(1/0.0014 psi)
Frequency,
1 kHz/9.81 Pa
(1 kHz/0.0014 psi)
--
--
Output frequency
Power supply
voltage
2.2
±0.1
VDC
2.2 to 3.4 VDC with
regulator
2.2 to 3.4 VDC with
regulator
2.2 to 3.4 VDC with
regulator
4.2 to 5.5 VDC with
regulator
Withstand pressure
Model
58.8 kPa (8.53 psi) for 3
D8M-A1
minutes
58.8 kPa
(8.53 psi) for 3 minutes
58.8 kPa
(8.53 psi) for 3 minutes
19.6 kPa (2.84 psi) for 5
minutes
3 kPa (0.435 psi) for 10
seconds
D8M-D1
--
D8M-D2
--
D8M-D82
80 to 300 kHz
D8M-R1
Solid State Pressure Sensors
D8M
1
Specifications
■
Electrical Ratings
Item
Power supply voltage
Current consumption
Load resistance
Output resistance
Leakage current
Output voltage
Output pulses
Output resolution
Output voltage rate of
change with resistance
load change
Output voltage by input
pressure
D8M-A1
2.2
±0.1
VDC
2.5 mA max.
1 MΩ min.
500
Ω
max.
1 mA or less
15 to 1247 mV
--
(Note 1)
D8M-D1
2.2 to 3.4 VDC with
regulator
25 mA max.
--
--
1 mA or less
--
--
1 pulse/9.81 Pa
D8M-D2
2.2 to 3.4 VDC with
regulator
25 µA
--
--
1 mA or less
--
--
1 pulse/9.81 Pa
--
D8M-D82
2.2 to 3.4 VDC with
regulator
--
--
1 mA or less
--
--
1 pulse/9.81 Pa
--
D8M-R1
4.2 to 5.5 VDC with
regulator
--
--
1 mA or less
--
80 to 300 kHz
1 kHz/9.81 Pa
--
100 mA
±5%
at 3 VDC 10 mA max.
1 MΩ or more into 30 --
kΩ is made within
2.5%
0.98 kPa = 261 mV
1.96 kPa = 508 mV
3.73 kPa = 951 mV
4.9 kPa = 1247 mV
(Note 1)
±37
mV during test
and after
--
--
--
--
Operating characteristics
±62
mV initial
--
0 kPa = 30 pulses
0.59 kPa = 60
±32
pulses
1.96 kPa = 200
±24
pulses
3.73 kPa = 380
±24
pulses
5.39 kPa = 530
±82
pulses
(Note 2)
--
0 kPa = 30 pulses
0.59 kPa = 60
±32
pulses
1.96 kPa = 200
±24
pulses
3.73 kPa = 380
±24
pulses
5.39 kPa = 550
±82
pulses
(Note 2)
--
0 kPa = 30 pulses
0.15 kPa = 45
±30
pulses
2 kPa = 204
±15
pulses
4 kPa = 438
±46
pulses
--
0 Pa =
180
±100
kHz;
Incremental change
from 0 value:
49.03 Pa =
5
±0.9
kHz
73.55 Pa =
7.5
±1.0
kHz
147.10 Pa =
15
±0.8
kHz
196.13 Pa =
20
±1.4
kHz
(Note 2)
--
±62
mV temperature
influence
--
--
--
Note: 1.
Output voltage (mV) = Supply voltage V (2.2) x (2.464 x Pressure (kPa)/9.8 x 1000 + 15)
2.
Values measured during and after testing.
■
Operating Characteristics
Item
Pressure type
Pressure range
Withstand pressure
Repeatability/hystersis
Non-linearity
characteristics
Response time
Gauge
0 to 4.9 kPa
(0 to 0.71 psi)
5.88 kPa for 3
minutes
±0.5%
FS
--
3.0 ms
0 to 5.88 kPa
(0 to 0.85 psi)
58.8 kPa for 3
minutes
±0.5%
FS
--
2.5 ms (pressure)
18 ms max. (switch)
100 ms (discharge)
-30° to 70°C
-40° to 80°C
25 to 95%
0 to 5.88 kPa
(0 to 0.85 psi)
58.8 kPa for 3
minutes
NA
--
3 ms (pressure)
32 ms max. (switch)
250 ms (discharge)
-30° to 70°C
-40° to 80°C
25 to 95%
0 to 4.9 kPa
(0 to 0.71 psi)
19.6 kPa for 5
minutes
±0.5%
FS
±2%
FS max.
1.5 ms (pressure)
30 ms max. (switch)
45 ms (discharge)
-10° to 60°C
-20° to 70°C
25 to 95%
0 to 196.13 Pa
(0 to 0.028 psi)
3 kPa for 10
seconds
±0.5%
FS
±2%
FS max.
3 seconds max.
D8M-A1
D8M-D1
D8M-D2
D8M-D82
D8M-R1
Operating temperature
(Note)
Storage temperature
(Note)
Operating humidity
-30° to 70°C
-40° to 80°C
25 to 95%
-20° to 70°C
-30° to 80°C
25 to 95%
Note:
With no icing or condensation
2
Solid State Pressure Sensors
D8M
■
Environmental Characteristics
Item
Insulation resistance
Dielectric strength
D8M-A1
D8M-D1
D8M-D2
D8M-D82
D8M-R1
500 VAC, 50/60 Hz for
1 minute between ter-
minals and the base
IP40
6 mm OD
IP40
4 mm OD
100 mΩ min., 250 VDC between lead terminals and the base
250 VAC, 50/60 Hz for 1 minute between lead terminals and the base
Degree of protection
Pressure port
Connection method
Weight
Material
NA
4 mm OD
IP40
3 mm OD
IP40
3 mm OD
Wiring connector on
top
NA
Solder on PC boards Wiring connector on
top
NA
NA
PBT (polybutylene terephthalate)
Three AWG26 wires, Wiring connector on
115 mm long
bottom
NA
NA
Operation
■
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
Dimensions
Unit: mm (inch)
■
D8M-A1
17.7 (0.70)
30 (1.18)
23 (0.92)
±0.2
10.1 (0.40)
2 (0.08)
5 (0.20)
1.6 (0.06)
Two 3.2 (0.13) dia.
mounting holes
23 (0.92)
±0.2
4 (0.16) OD
18.8 (0.74)
18.6 (0.73)
11.6 (0.46)
2 (0.08)
4.4 (0.17)
30 (1.18)
7 (0.28)
TYPE NAME
LOT NUMBER
Two, 1.5 (0.06) dia.
standoff pins
Three, 0.635 (0.025)
square terminal leads
4 (0.16) OD
Two, 3 (0.12) dia.
Mounting Holes
(Top View)
Terminal Arrangement
(Top View)
GND
V
OUT
V
CC
10.7 (0.42)
15.6 (0.61)
±0.01
23 (0.91)
±0.1
5.08 (0.20)
Two, M3 holes
5.08 (0.20)
23 (0.91)
±0.1
■
D8M-D1
4
Solid State Pressure Sensors
D8M
■
D8M-D2
■
D8M-D82
Solid State Pressure Sensors
D8M
5
京公网安备 11010802033920号
EEWORLD
