100mm Vacuum Manometer Brass Connection Electric Contact Pressure
Gauge
Description
When the atmospheric pressure within an enclosure is below ~14.7
PSI, that enclosure is said to be a vacuum. It is impossible to
artificially achieve a pressure of zero, and there are no examples
of absolute vacuums in nature or in space. An enclosure can,
however, be partially evacuated of its contents. Vacuum gauges are
used to measure the extent to which enclosures have been evacuated;
they measure low pressure, not negative pressure. Vacuum gauges are
made from metal such as stainless steel or aluminum.
Applications
Control and regulation of industrial processes
Monitoring of plants and switching of circuits
For gaseous and liquid media that are not highly viscous or
crystallising and will not attack copper alloy parts
Special features
High reliability and long service life
Up to 4 switch contacts per instrument
Instruments with electronic contacts for PLC applications
Contact gauges comply with DIN 16085
Specifications
Design | EN 837-1 |
Nominal size | 100mm |
Accuracy | 1.6 |
| Pressure range | Vacuum (customized) |
Pressure limitation | Steady: full scale value Fluctuating: 0.9 x full scale value Short time: 1.3 x full scale value |
| Process connection | G ½ B ½ NPT M20 x 1.5 others on request |
| Permissible temperature | Ambient: -20 ... +60 °C Mediium: +80 °C maximum |
Ingress protection | IP54 |
Temperature effect | When the temperature of the measuring system deviates from the
reference temperature (+20 °C): max. ±0.4 %/10 K of the span |
Process connection | Stainless steel, SUS 304, SUS 316 |
Pressure element | Copper alloy |
| Movement | Copper alloy |
| Dial | Aluminium, without pointer stop pin
Black lettering |
| Pointer | Aluminium |
| Case | Stainless steel |
| Ring | None |
| Window | Plastic |
| Unit | bar, psi, kg/cm2, kPa, MPa |
| Thread | G, BSP, PT, BSPT, NPT |
| Options | Other process connection thread
Surface mounting flange
Mounting bracket |
Dimensions
Specifications for instruments with magnetic snap-action contact
model M12
| Measuring span | Nominal size | Max number of contacts | Switching current range |
| ≤ 1.0 bar | 100, 160 | 1 | 0.02 ... 0.3 A |
| > 1.0 bar | 100, 160 | 1 | 0.02 ... 0.6 A |
| ≤ 1.6 bar | 100, 160 | 2 | 0.02 ... 0.3 A |
| > 1.6 bar | 100, 160 | 2 | 0.02 ... 0.6 A |
| ≤ 4.0 bar | 100 | 3 or 4 | 0.02 ... 0.3 A |
| > 4.0 bar | 100 | 3 or 4 | 0.02 ... 0.6 A |
| ≤ 2.5 bar | 160 | 3 or 4 | 0.02 ... 0.3 A |
| > 2.5 bar | 160 | 3 or 4 | 0.02 ... 0.6 A |
The recommended setting range of the contacts is 25 ... 75 % of the
scale (0 ... 100 % on request).
Contact material (standard): Silver-nickel, gold-plated
Recommended contact load with resistive and inductive loads
Ordering information
Model / Dial size / Pressure Range / Process connection / Options
