Inst ToolsInst ToolsInst Tools
  • Courses
  • Automation
    • PLC
    • Control System
    • Safety System
    • Communication
    • Fire & Gas System
  • Instrumentation
    • Design
    • Pressure
    • Temperature
    • Flow
    • Level
    • Vibration
    • Analyzer
    • Control Valve
    • Switch
    • Calibration
    • Erection & Commissioning
  • Interview
    • Instrumentation
    • Electrical
    • Electronics
    • Practical
  • Q&A
    • Instrumentation
    • Control System
    • Electrical
    • Electronics
    • Analog Electronics
    • Digital Electronics
    • Power Electronics
    • Microprocessor
  • Request
Search
  • Books
  • Software
  • Projects
  • Process
  • Tools
  • Basics
  • Formula
  • Power Plant
  • Root Cause Analysis
  • Electrical Basics
  • Animation
  • Standards
  • 4-20 mA Course
  • Siemens PLC Course
Reading: Information on the Pressure Gauge Dial
Share
Font ResizerAa
Inst ToolsInst Tools
Font ResizerAa
  • Courses
  • Design
  • PLC
  • Interview
  • Control System
Search
  • Courses
  • Automation
    • PLC
    • Control System
    • Safety System
    • Communication
    • Fire & Gas System
  • Instrumentation
    • Design
    • Pressure
    • Temperature
    • Flow
    • Level
    • Vibration
    • Analyzer
    • Control Valve
    • Switch
    • Calibration
    • Erection & Commissioning
  • Interview
    • Instrumentation
    • Electrical
    • Electronics
    • Practical
  • Q&A
    • Instrumentation
    • Control System
    • Electrical
    • Electronics
    • Analog Electronics
    • Digital Electronics
    • Power Electronics
    • Microprocessor
  • Request
Follow US
All rights reserved. Reproduction in whole or in part without written permission is prohibited.
Inst Tools > Blog > Pressure Measurement > Information on the Pressure Gauge Dial

Information on the Pressure Gauge Dial

Last updated: June 21, 2020 11:20 am
Editorial Staff
Pressure Measurement
3 Comments
Share
3 Min Read
SHARE

European standard EN 837 and American standard ASME B40.100 talk about pressure gauges. Here we are going to review the information written on dial pressure gauges according to EN 837.

Pressure Gauge Dial

In the picture below more than 11 pieces of information have been shown. Let’s look at them.

Pressure Gauge Dial

Number 1:

S circled sign shows that this gauge is “Safely designed” in order to protect it in case of overpressure.

Blow-out device, Blow-out back, baffle wall and laminated safety glass are some designs that in some cases must be provided.

Number 2:

En 837 standard has 3 parts:

  • Part one deals with Bourdon tube pressure gauges,
  • Part two talks about Selection and installation,
  • Part three is about Diaphragm and capsule pressure gauges.

In this picture, it has been written EN 837-1. That means the measurement element of the gauge here is a Bourdon tube. Something that is accordant with the number 3.

Number 3:

symbols of the pressure sensing element based on the table below:

Symbols of Pressure Sensing Element

Number 4:

If the gauge meets the accuracy requirements on only gas or liquid, then this shall be marked. This applies to 0.1, 0.25, and 0.6 accuracy class gauges.

This is why in our example there is a G mark.

Number 5:

if the wetted parts are different from the brass, tin, or hard solder, then

the material of the wetted parts may be marked. In this case, the wetted part is made of SS 316L.

Number 6:

the unit of the measurement

Number 7:

manufacturers name of the trademark

Number 8:

The serial number of the pressure gauge. if the accuracy is 0.1 or 0.25 it is obligatory, but it may be marked in accuracy from 0.6 to 4. It helps correct calibration and traceability.

Number 9:

Accuracy class.

Pressure Gauge Accuracy Class

The accuracy class in the example is 0.6

Number 10:

An identifying mark at the maximum scale value that illustrates the maximum steady working pressure.

Number 11:

scale interval. In fact, it is not obligatory to be shown in the middle of the dial but the scale interval has to follow the EN 837 base on the accuracy, dial size, scale, and the number of the minor scale division.

Author: Hanif Yazdanipoor

Read Next:

  • Dead Weight Tester
  • Strain Gauge Principle
  • Bourdon Tube Animation
  • DP Gauge across Filter
  • Remote Seal DP Transmitter
Don't Miss Our Updates
Be the first to get exclusive content straight to your email.
We promise not to spam you. You can unsubscribe at any time.
Invalid email address
You've successfully subscribed !

Continue Reading

Pressure Gauge Calibration Procedure
DP Transmitter Block and Bleed Valves
What is Static Pressure Limit in DP Transmitter ?
Why are Impulse Lines often Installed in a Sloping Manner?
C-Bourdon Tube Pressure Gauge Theory
How Capacitive Pressure Sensor Works ?
Share This Article
Facebook Whatsapp Whatsapp LinkedIn Copy Link
Share
3 Comments
  • Fazal Karim says:
    February 28, 2021 at 1:23 pm

    Excellent information i have ever seen in precisely

    Reply
  • rae kidney says:
    March 5, 2022 at 12:00 pm

    what is the frequency of calibration of pressure gauges

    Reply
  • farzad says:
    January 21, 2024 at 1:09 pm

    perfect

    Reply

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Stay Connected

128.3kFollowersLike
69.1kFollowersFollow
210kSubscribersSubscribe
38kFollowersFollow

Categories

Explore More

Scaling Sensor Output to Engineering Units
Pressure Gauge Accessories
Remote Diaphragm Seal Transmitter for Vacuum Application
Interview Questions on Differential Pressure Flow Transmitter
How to Read Gauge Analog Scales
Fine Wire Strain Gauge Principle
Bourdon Tube Pressure Gauge Working Principle Animation
Piston Type Differential Pressure Gauge Principle

Keep Learning

Strain Gauge Pressure Sensor Principle

Strain Gauge Pressure Sensor Principle

Strain Gauge Pressure Transducer

Resistance Type Pressure Transducers Principle

Submersible Pressure Transmitter

What is a Submersible Pressure Transmitter? Principle, Advantages

Barometer Principle

What is a Barometer?

Differential Pressure Switch Calibration Procedure - Copy

Differential Pressure Switch Calibration Procedure

Pressure gauges with capsule elements

Pressure Gauges with Capsule Sensor Principle

Vacuum Gauges Working Principle

Vacuum Gauges Working Principle

Capacitance Pressure Sensor Principle

Electronic Pressure Sensors Principle

Learn More

Induced Draft Cooling Tower

Cooling Tower

Use Dumps to Ace Certbolt Microsoft AZ-204 Exam

Use Dumps to Ace Certbolt Microsoft AZ-204 Exam

Top 100 PLC Objective Questions and Answers

Top 100 PLC Objective Questions and Answers

How to Measure Specific Gravity of Battery

How to Measure Specific Gravity of Battery

What is a transformer tap changer?

Methods of Transistor Biasing

Methods of Transistor Biasing

Electrical & Electronics Measurements Objective Questions

Electrical & Electronics Measurements Objective Questions – Set 1

Closed Tank Level Measurement Formula

Siemens Differential Pressure Transmitter Calculations (Flange Type)

Menu

  • About
  • Privacy Policy
  • Copyright

Quick Links

  • Learn PLC
  • Helping Hand
  • Part Time Job

YouTube Subscribe

Follow US
All rights reserved. Reproduction in whole or in part without written permission is prohibited.
Welcome Back!

Sign in to your account

Username or Email Address
Password

Lost your password?