Manometers

Manometers are instruments used to measure the pressure of liquids and gases, and are vital for maintaining and troubleshooting equipment that uses gas or liquid to operate. Most modern manometers are compact and portable digital instruments that offer greater levels of accuracy, safety and ease of use than older types featuring a U-shaped glass tube filled with liquid mercury.

What are the features of manometers?

Modern manometers are handheld, battery operated and have clear digital screens so that results can be easily read even in awkward places or in bright or dim light. Hi-tech sensors and sophisticated microprocessors give highly accurate readings, while many come with software that allows data to be transferred to laptops, smartphones or tablets for storage or analysis.

Most digital manometers have memory capacity for data logging. A range of maximum pressure measurements are available, and some models are designed to be intrinsically safe for use in hazardous environments.

How do manometers work?

Digital and analogue manometers work on the same principle of fluid displacement. In traditional U-tubed manometers, water fills the tube before a gas line introduces pressure to displace the water. The height to which the water rises is then measured on an analogue scale.

The modern digital manometer can accurately reproduce this process electronically, with pressures typically displayed in pounds per square inch (PSI). They can measure absolute pressure, differential pressure, and gauge pressure. In conjunction with a pitot tube, a manometer can convert pressure readings into air velocity (FPM).

Where are manometers used?

Manometers are used to measure air, gas or fluid pressure in commercial, domestic and industrial environments to ensure that levels remain optimal and safe. They can also be used to troubleshoot system failures and seek out leaks, and are commonly used for food processing, research and education.

In refrigeration systems, digital pressure meters can gauge pressure, vacuum and temperature. They can also help to establish flow and static pressure in gas systems, or be used for pressure-drop testing in gas pipes.


...
Read more Read less

Filters

Viewing 1 - 20 of 65 products
Results per page
Description Price Best Accuracy Calibrated Number of Pressure Ports Maximum Pressure Measurement Minimum Pressure Measurement Pressure Port Type Leak Testing Communication Protocol Minimum/Maximum Recordings Data Logging Intrinsically Safe IP Rating Battery Type Display Type
RS Stock No. 312-0539
Mfr. Part No.I705-07A-2388
BrandDruck
TWD18,759.00
Each
units
±0.1 % - 1 2bar 0bar Absolute Yes - Yes - - IP54 AA LCD
RS Stock No. 460-9780
Mfr. Part No.PM-80
BrandDigitron
TWD8,495.00
Each
units
±0.2 % - 2 130mbar 0mbar Differential - - - - - IP65, IP67 AA LCD
RS Stock No. 312-0517
Mfr. Part No.I705-07G-2388
BrandDruck
TWD19,321.00
Each
units
±0.1 % - 1 2bar 0bar Gauge Yes - Yes - - IP54 AA LCD
RS Stock No. 920-5188
Mfr. Part No.0563 0510
BrandTesto
TWD5,170.00
Each
units
+1.5 (0.40 → 40 inH2O) %, +1.5 (1.01 → 100 hPa) % - 2 40.15 inH2O, 100 hPa 0 hPa, 0 inH2O Differential - - - - - IP40 AAA Backlit LCD
RS Stock No. 339-4140
Mfr. Part No.2026P7
BrandDigitron
TWD12,769.00
Each
units
±0.15% + 0.015 bar + 1 Digit - 2 10bar 0bar Differential - - Yes - - IP67 AA LCD
RS Stock No. 721-3975
Mfr. Part No.PPA100-04
BrandSMC
TWD6,749.00
Each
units
- - - - - - - - - - - - - -
New
RS Stock No. 205-0963
BrandRS PRO
TWD7,792.00
Each
units
±0.2 % - 2 2bar -2bar Differential No - Yes No No IP67 AA Backlit LCD
RS Stock No. 201-2866
Mfr. Part No.DPI705E-1-07A-P1-H0-U0-OP0
BrandDruck
TWD20,649.00
Each
units
±0.1 % - 1 2bar 0.35bar Gauge - - - - - - - Backlit LCD
RS Stock No. 721-3979
Mfr. Part No.PPA101
BrandSMC
TWD6,077.00
Each
units
- - - - - - - - - - - - - -
RS Stock No. 146-7722
BrandRS PRO
TWD24,702.00
Each
units
±0.1 % - - 20bar 0bar Gauge Yes - Yes - No IP54 Alkaline LCD
RS Stock No. 315-7272
Mfr. Part No.2022P7
BrandDigitron
TWD19,900.00
Each
units
±0.15% + 0.003 bar + 1 Digit RSCAL 2 2bar 0bar Differential - - Yes - - IP67 AA LCD
New
RS Stock No. 205-0967
BrandRS PRO
TWD16,562.00
Each
units
±0.4% - 1 0.35bar -0.199bar Differential Yes USB Yes No - IP65, IP67 AAA Backlit LCD
RS Stock No. 144-5336
BrandRS PRO
TWD4,902.00
Each
units
±0.3 % - 2 0.137 bar, 0.14 kgcm², 2 psi, 4.072 inHg, 4.612 ftH2O, 13.79 kPa, 32 ozin², 55.4 inH2O, 103.4 mmHg, 137.8 psi, 140.6 cmH2O -2psi Differential, Gauge - - Yes - - - 9V LCD
New
RS Stock No. 205-0964
BrandRS PRO
TWD7,792.00
Each
units
±0.2 % - 2 0.02bar -0.2bar Differential No - Yes No No IP67 AA Backlit LCD
RS Stock No. 201-2879
Mfr. Part No.DPI705E-2-07G-P1-H0-U0-OP0
BrandDruck
TWD22,624.00
Each
units
±0.05 % - 1 2bar 0bar Gauge - - - - - - - Backlit LCD
RS Stock No. 201-2867
Mfr. Part No.DPI705E-1-11G-P1-H0-U0-OP0
BrandDruck
TWD20,649.00
Each
units
±0.1 % - 1 10bar 0bar Gauge - - - - - - - LCD
New
RS Stock No. 205-1446
BrandRS PRO
TWD25,160.00
Each
units
±0.3 % FS - 2 500mbar -500mbar Differential No - Yes No Yes IP65 9 V LCD
RS Stock No. 913-2623
Mfr. Part No.0560 0550
BrandTesto
TWD8,817.00
Each
units
±0.5 % - 1 870psi -14psi Absolute - - - - - IP42 - Backlit LCD
RS Stock No. 906-9424
Mfr. Part No.475-3-FM
TWD5,893.00
Each
units
±0.5 % - 2 7.22psi 0psi Differential - - - - Yes - Alkaline LCD
RS Stock No. 850-7672
Mfr. Part No.FLUKE 922
BrandFluke
TWD25,234.00
Each
units
±1 % - - 6psi -6psi Differential - - Yes Yes - IP40 AA LCD