Absolute Pressure Gauges MODEL : APG Why Absolute Pressure Gauge? The atmospheric pressure varies from place to place depending up on the altitude of the location and prevailing weather conditions. In such variable conditions, precise pressure measurement can be arrived only if a fixed (un-changing) reference point is established. For this purpose we have developed element of Twin Bellows, one of the same is totally evacuated and sealed, which shall be the reference point for calibration i.e. Absolute Zero. These twin bellows are connected through a special type of movement, by which any change in the atmospheric pressure is compensated, and thereby the gauge gives the absolute pressure irrespective of the location. Features n Compliance to latest EN-837 standard n : 760-0 mmHg Range n Capsule/Bellow in SS316 as standard providing better mechanical properties guaranteeing repeatability and accuracy n Accuracy ± 1% FSD n measurement - mmHg, mmWC Unit of Specifications Ref. Standard Dial EN-837 150 mm in Aluminium, white background, black markings Case Diecast aluminium / Ss304 / SS316 with screwed bezel Protection IP-67 (IS :13947 Part I) Sensor Capsule / Bellow in SS316 Socket 22mm Square in SS316 Movement Brass, SS304, SS316 Connection 1/2" NPT (M) as standard (other optional) Accuracy ± 1% FSD Overrange 130% FSD (other on request) Suitability (-) 20°C to 80°C (service temperature) Zero adjustment External Optional NACE compliance Under Technical Collaboration with Gauges Bourdon www.prisma-instruments.co

Ordering Information Bottom Entry, Local Mounting Back Entry, Local Mounting Bottom Entry, Surface Mounting Back Entry, Flush Panel Mounting Back Entry, Surface Mounting X Accessory - Refer Catalogue ACC CASE AL Die-cast Aluminium S4 Ss304 S6 SS316 kg/cm2 (a) Bar (a) Psia KPa mmHg(a) Pl. specify RANGE Refer Table 1 MALE / FEMALE METRIC THREADS 18 M - M 18 x 1.5 M Male 20 M - M 20 x 1.5 Female F 24 M - M 24 x 1.5 27 M - M 27 x 2 PF PF 33 M - M 33 x 2 25 1” GS Gas X X - Any other 1.1/4” NS NPSM 32 40 1.1/2” NT NPT BP BSP BT BSPT F - FLANGED PROCESS CONNECTION ** Size Code Rating Code Facing Code...