OMRON ​ZN-DPS11-S ZN-DPS15-S ZN-DPX21-SA Differential Pressure Station

Differential 
pressure

Measurement range

-500 to 500 Pa

Measurement precision

3%±0.2 Pa of the measured value (at 23°C, 966 mbar) *

Resolution

0.1 Pa

Temperature 
effect

Zero point

No effects (lower than measurement resolution)

Span

Less than 0.5% of the specified value/10°C

Operating temperature range

0 to 50°C

Applicable gas type

Air, nitrogen

Cable length

1.5 m

10 m

Weight (packaged)

Approx. 500 g

Accessories

Instruction Sheet, air tube 1 m x 2, mounting screw (M3 x 6) x 2

Sensor that can be connected

Fine differential pressure sensor head (ZN-DPS1[][]-S)

Display

LCD 7-segment 5-digit 2-step display, auxiliary information indicator display

Measurement interval

10 s, 20 s, 30 s, 1 min, 2 min, 5 min, 10 min, 20 min, 30 min, 1 h

Calculation function

Instantaneous value, maximum value, minimum value, average value

Operating mode

Network connection mode, sleep mode *1 
air particle sensor (ZN-PD[][]-S[]) connection mode *2

Recording mode

Continue *3, ring *4

Alarm signal output

Output to photocoupler (External power supply: 12 to 24 VDC, Load current: Max. 
45 mA) Alarm hold setting is possible. *5

Communications interface

Ethernet (10BASE-T, 100BASE-TX)

Communications protocol

Socket (TCP), original protocol

Internal storage device

Internal memory: Approx. 8,500 data items *6

External storage device

SD card (measured value saving/set value saving and reading), Recommended 
SD card: HMC-SD292 (2GB) and HMC-SD492 (4GB) (manufactured by OMRON) ∗7

Power supply voltage

DC input: 24 VDC±10% 
Battery: 2 AAA batteries *8

Battery life *9

Approx. 1 year *9 (sleep mode) 
Approx. 2 hours*9 (Network connection mode, air particle sensor (ZN-PD[][]-SA) 
connection mode) 
Measurement interval of 10 minutes with 2 AAA nickel metal hydride batteries, with 
SD card not inserted)

Operating temperature range

0 to 60°C

Operating humidity range

20% to 85% (no condensation)

Weight (packaged)

Approx. 500 g

Accessories

Instruction Sheet, Startup Guide, DC cable (straight type), Ferrite core, 
Alarm output connector ∗10