Differential Pressure Transmitters

What is a Differential Pressure Gauge?

Differential pressure transmitters monitor and communicate the pressure measurements of equipment. Featuring DPharp technology, they deliver accurate, repeatable, and fast-responding measurements. Traditional mount or remote diaphragm seal mount configurations are available.

How Does a Differential Pressure Transmitter Work?

Differential Pressure (DP) transmitters measure the difference between two pressures. They use a reference point called the low-side pressure and compare it to the high-side pressure. Ports in the instrument are marked high-side and low-side. The DP level transmitter reading can be either negative or positive depending on whether the low-side or high-side is the larger value. A DP transmitter can be used as a gauge pressure transmitter if the low-side is left open to the atmosphere.

Digital Differential Pressure Transmitter

As part of a digital transformation, digital differential pressure transmitters can make data-gathering operations more efficient and safe for people.

Common Industrial Applications

Closed Tank Level
DP Flow (Secondary Element)
Filter health
Density

What are the Different Types of Pressure Measurement?

View the differential pressure meter comparison chart.

EJA110E

High-Performance Differential Pressure Transmitter
EJX110A

High-Performance Differential Pressure Transmitter
EJA130E

Differential Pressure Transmitter
EJX130A

High Static Differential Pressure Transmitter
EJA120E

Draft Range Differential Pressure Transmitter
EJX120A

Traditional-Mount Draft Range Pressure Transmitter
EJXC40A (DRS)

Digital Remote Sensor (DRS) Transmitter

Which DP Level Transmitter Series Is Right for You?

	EJA-E Series	EJX-A Series

Accuracy
± 0.025%		•
± 0.040%	•	•
± 0.055%	•
Stability
± 0.1% of URL per 15 years		•
± 0.1% of URL per 10 years	•
Response Time
90 msec	•	•
Safety
FMEDA Report	•	•
IEC 61508 Certified (SIL 2)	•	•
Multi-sensing
Differential Pressure	•	•
Static Pressure	•	•

How Does a Differential Pressure Transmitter Work?

Differential Pressure (DP) transmitters measure the difference between two pressures. They use a reference point called the low-side pressure and compare it to the high-side pressure. Ports in the instrument are marked high-side and low-side. The DP reading can be either negative or positive depending on whether the low-side or high-side is the larger value. A DP transmitter can be used as a gauge pressure transmitter if the low-side is left open to the atmosphere.