Description
HAWK type 31L and 31B are designed for the industrial applications where a higher degree of accuracy is required and operator errors must be minimized. Improved dial and pointer results in excellent viewing. Polished mirror band and knife-edge pointer with red painted tip let users read scale without parallax error. White dial background with large numbers and graduations results in excellent readability. External adjustable pointer facilitates compensation for calibration adjustment.
Typical Applications
- Industrial test laboratories
- Monitoring of the testing device
- Measuring workshop systems
- Control workshop systems
- All equipment require high accuracy performance
Specifications
Operating
Steady: 100%*full scale value
Pulsation: 90%*full scale value
Sudden: 130%*full scale value
The appropriate operating range falls in the middle half of the gauge (25% to 75% of full scale). If you choose the unsuitable range, the fatigue of bourdon tube may be resulted. HAWK Supplies a wide selection of range from vacuum to 20000 PSI including compound range.
Temperature limit
Ambient: -40 to 70°C
Media: max 70°C – Brass Wetted Parts
100°C – SS316 Wetted Parts
Temperature effect
Accuracy of measurement will be effected by the temperature change. This inaccuracy may as high as ±0.2% for 10°C temperature change.
Size
4 1/2″ (115mm) or 6″ (150mm).
Case&Ring
Aluminum case and ring with black enamel.
Socket
Brass, 316 Stainless Steel or Monel K400.
Movement
Stainless steel movement.
Bourdon Tube
Brass, 316L-Stainless Steel or Monel K500.
Window
Tempered safety glass-standard
Polycarbonate or Laminated safety glass-optional.
Several Kinds of Window
Pointer
Zero adjustable pointer.
Accuracy
±0.25% of span (Grade 2A to ASME B40.1)
Scale
PSI, kPa, Mpa, bar, kg/cm2, inHg, cmHg, torr, mmHg (single or dual scale), others on request.
Connection
1/2″, 1/4″ NPT standard, JIS, DIN, M20*1.5 available.
Mounting
Local or Panel mounting.
Weatherproof
NEMA 3/3X (IP54) enclosure.
