For low and negative pressure measurements on clean and non corrosive gases. Convenient for measuring gas circuits or pharmaceutical equipments.
| DIMENSION | 63mm、75mm、100mm | 
| ACCURACY | 63mm class ± 2.5 % | 
| 75mm class ± 1.5 % | |
| 100 mm class ± 1.5 % | |
| PRESSURE RANGE | -200mm Aq Vac to 5000 mm Aq | 
| OPERATING TEMPERATURE | Working temperature 60℃ | 
| Ambient: -20℃ ~60℃ | |
| CONNECTION | Brass Alloy | 
| Mounting: LBM/CBM | |
| 63mm thread: 13mm | |
| 75, 100mm thread: 17mm | |
| 1/4’’, 3/8’’, 1/2’’, NPT, BSPT, BSP | |
| SENSING ELEMENT | Brass alloy diaphragms | 
| When pressure is supplied to one side of the diaphragm, the degree of flexing | |
| becomes a measure for the pressure | |
| MOVEMENT | Brass alloy | 
| DIAL | Aluminium in white & lettering in black | 
| POINTER | Aluminium in black | 
| CASE | Stamped sheet steel | 
| -Black phosphated and painted | |
| -or anodized by customise finish | |
| UPPER RING | Steel | 
| -Black phosphated and painted | |
| -or anodized by cusomised finish | |
| WINDOW | Glass or Acrylic | 
| ORDER OPTIONS | 1. Front or rear flange | 
| 2. Adjustable red mark pointer | 

