Smart-gauge pressure switch

February 2003 Operator Interfaces, Switches & Relays Residential Estate (Industry)

Meriam Instrument's 2100 Smart Gauges are microprocessor-based pressure sensing devices that can be used to measure pressure, differential pressure (air or gas flow), or hydrostatic level. Available from Protea Automation Solutions, there are three models in the series, the 2110P for pressure measurement, the 2110L for level, and the 2110F for gas flow. All three share the same hardware, but have different software programmes based on the function.

For pressure applications the 2100 has two distinct advantages over mechanical gauges. Firstly, the actual switching point can be precisely set, a user can 'see' the set point without having to make trial and error adjustments. Secondly, it reduces excessive dead band or hystereses - a common complaint about mechanical gauges. The dead band in the 2100 is user selectable for exact control.

The instrument is CSA approved for intrinsically safe applications, and NIST certificates supplied with every model. Readings are displayed on a 15, 24 mm high, backlit digital display.

The Absolute models provide resolution to 0,1 mm Hg. Vacuum units have 0,001" Hg resolution over the entire vacuum range. The combination of resolution, 0,05% full-scale accuracy, built-in RS232 interface, and competitive pricing make this series suitable for laboratories and process applications.

For more information contact Jerry Smits, Protea Automation Solutions, 011 719 5700.

Further reading:

Grayhill achieves CANopen certification
Operator Interfaces, Switches & Relays
Grayhill has achieved official CANopen certification from CAN in Automation for its Touch Encoder T1 series, giving designers a standards-based communication option for integrating touch encoder controls into CAN-based automotive and industrial systems.

Read more...

---

One picture of the estate
Editor's Choice Integrated Solutions Security Services & Risk Management Residential Estate (Industry)
Bringing patrol, incident, and H&S reporting onto a single platform: a security operation should be able to show what happened, when it happened, and how personnel responded.

Read more...

---

What good estate security looks like in 2026
Security Services & Risk Management Residential Estate (Industry) Products & Solutions
Most estates have no shortage of guards, cameras and boom gates. The harder questions are: can you see what is happening across the whole estate right now, and do you hear about a problem before a resident does?

Read more...

---

Designed for what comes next
neaMetrics TRASSIR - neaMetrics Distribution Suprema Access Control & Identity Management Residential Estate (Industry)
What an access control system does in year one is not what you will need it to do in year eight. A system that can evolve protects the value of what you already own; a static one becomes harder and more expensive to sustain.

Read more...

---

The proposed POPIA Code demands greater accountability
Editor's Choice Access Control & Identity Management Security Services & Risk Management Residential Estate (Industry)
The Information Regulator is not trying to end estate security processes, but to ensure everybody’s right to privacy and security, forcing estates to prove these systems improve security and that the personal information they collect is managed responsibly.

Read more...

---

Your “POPIA Certification” does not exist
ATG Digital Security Services & Risk Management Residential Estate (Industry)
There is a dangerous “POPIA Certified” myth that is making the rounds, and if you are duped, it will expose your business to legal and financial risk. ATG Digital separates POPI Act compliance fact from fiction for legitimate peace of mind.

Read more...

---

Integration and management define perimeter security
Stafix Security Centres Editor's Choice Perimeter Security, Alarms & Intruder Detection Security Services & Risk Management Residential Estate (Industry)
Perimeter security is no longer just a fence or wall; effective security starts at the electric fence and extends to the control room. SMART Security Solutions asked Shaun Williamson for insights into the perimeter security challenges estates face.

Read more...

---

Connecting access control, logistics and asset tracking
SA Technologies Access Control & Identity Management Integrated Solutions Residential Estate (Industry) Logistics (Industry)
Physical barriers matter, but a site is not secure just because the gate is strong or the container is locked. True security requires verifying every movement, tracing handovers, making exceptions visible, and allowing intervention before minor issues become major losses.

Read more...

---

Your estate deserves smarter security
LD Africa Products & Solutions Access Control & Identity Management Residential Estate (Industry)
If you manage an estate, you will know the feeling: resident safety, visitor flow, staff and contractor access, and the constant juggling act of keeping it all running smoothly.

Read more...

---

Enabling smarter and safer residential estates
Impro Technologies Access Control & Identity Management Infrastructure Residential Estate (Industry)
Modern estates must manage residents, visitors, contractors, domestic workers, delivery personnel, security staff, and service providers, often across multiple access points and facilities. Traditional systems are increasingly unable to provide the visibility, accountability, and operational efficiency required.

Read more...

---