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Capsule Pressure Gauges
Wika Capsule Pressure Gauge Model 612.20.100, 0...100 mbar / 0...1000 mmWC, Dual Scale, 4" Dial, 1/2" NPT Lower Mount, 84272198
WIKA

Wika Capsule Pressure Gauge Model 612.20.100, 0...100 mbar / 0...1000 mmWC, Dual Scale, 4" Dial, 1/2" NPT Lower Mount, 84272198

Mfr. part no.
84272198
SKU
PW40-MBAR-100

Specifications

Measuring Range 0...100 mbar
Dial Size 100 mm / 4"
Process Connection 1/2" Male NPT
Accuracy Class Class 1.6 to EN 837-3
Case Material Stainless steel case with cam-ring (bayonet) bezel
Wetted Parts Copper alloy
Window Flat instrument glass
Ambient Temperature Range -20...+60 °C
Ingress Protection IP54
Media Compatibility Dry, non-aggressive gases that do not corrode copper alloy
Mounting Position Lower mount

Key Features

  • Capsule pressure gauge, industrial series model 612.20.100 for ultra-low pressures
  • Dual scale 0…100 mbar primary & secondary scale mmWC (red).
  • 1/2" NPT lower Mount process connection
  • Copper alloy capsule measuring system for dry, non-aggressive gases
  • Stainless steel case with cam-ring (bayonet) bezel and flat glass window
  • Accuracy class 1.6 to EN 837-3
  • Typical ambient temperature -20…+60 °C, medium temperature up to +100 °C
  • High resolution at low pressures for accurate draft and level indication
  • Made in Switzerland.

Description

This version of the WIKA 612.20.100 capsule pressure gauge is for very low pressure measurement from 0…100 mbar / 0...1000 mmWC scale on a large 100 mm dial. The copper alloy capsule measuring system is ideally suited for small over-pressures of dry, non-aggressive gases, converting the applied pressure into a proportional movement transmitted to the pointer. A stainless steel case with bayonet (cam-ring) bezel and flat instrument glass provides a durable housing for industrial and HVAC environments. The instrument follows EN 837-3 design requirements for capsule gauges and offers class 1.6 accuracy, with typical ambient temperatures from -20…+60 °C and medium temperatures up to +100 °C. With a 1/2" NPT lower Mount connection, this gauge is ideal for draft measurement, filter and blower monitoring and level indication applications where fine low-pressure resolution in mbar/mmWC is needed.

Typical Applications

  • Draft and chimney pressure monitoring in boilers, heaters and flues
  • Filter and blower differential pressure indication at very low pressures
  • Sensitive low-pressure pneumatic control and monitoring
  • Level measurement in open tanks using mmWC indication at low ranges
  • Laboratory and environmental monitoring of ultra-low gas pressures

Documents

  • Wika Datasheet-84272198

    PDF, 46 KB

  • Wika-612.20 Model — Datasheet

    PDF, 575 KB

  • Wika-612.20 Model Technical Data

    PDF, 604 KB

  • Wika Pressure Gauge Operating — Instructions

    PDF, 383 KB