• Xian Henry Automation Co Limited

Absolute Pressure Dead Weight Testers

Xian Henry Automation offers Absolute Pressure Dead Weight Testers, DTP-HA. It is a high accuracy pressure calibration standard, which may measure gauge pressure, vacuum, or absolute pressure by clean air or nitrogen gas as medium, with accuracy 0.02% or 0.005%. Its design is small sized and light weighted. The material of the piston rod is stainless steel and the material for the piston cylinder is tungsten carbide hardened, so as to ensure the piston features rust resistance, wear-resistance and long working life. It offers a lower descending speed, and consequently much better repeatability, perdurability, sensitivity, etc. when compared with oil driven piston testers. It is versatile and superior while equipped with pistons of different ranges to obtain wider measuring range and higher accuracy, the gauge pressure and absolute pressure. Standard models like DTP0010-HA, DTP0011-HA, DTP0012-HA, DTPD010-HA, DTPD011-HA, DTPD012-HA, DTPN020-HA, DTPN021-HA, DTPN022-HA, DTPA040-HA, DTPA041-HA, DTPA042-HA are available. Specifications: measuring range - 2 to 160 kPa, 4 to 250 kPa, 4 to 400 kPa; dual ranges optional; built-in precision pressure controller; working medium is nitrogen or clean air; accuracy is +/-0.02%, +/-0.005%; storage temperature is 20 +/- 5 degree C; working temperature is 20 +/-1 degree C (for 0.005%), 20 +/- 2 degree C (for 0.02%); detecting temperature is 20 +/- 0.5 degree C (0.005%), 20 +/- 2 deg. C (0.002%); humidity - RH less than 70%; piston effective area - effective area range of piston assembly S1 (3.990 to 4.010)cm2 (range 2 to 160kPa), effective area range of piston assembly S2 (1.990 to 2.010)cm2 (range 4 to 250kPa, 4 to 400kPa); materials - piston made up of stainless steel, cylinder made up of tungsten carbide, weight sets made up of stainless steel or aluminum; vacuity of the vacuum covering; supply voltage is 220V; dead weights accuracy is +/-0.005%, allowableerror+/-0.001% +/-0.002%, allowable error +/-0.001%; start Pressure is standard 4 kPa (40 mBar), optional 2kPa (20 mBar); minimum weight increment is standard 1 kPa (10 mBar), optional 0.5kPa (5 mBar).