The K3 Series are pressure sensors for use in high temperature applications where the process temperatures may reach 1000°F (538°C) such as high temperature engineered polymers. The K Series utilizes standard melt pressure principles and construction; strain sensing technology is bonded foil strain gage. A near incompressible sodium-potassium (i.e. NaK) mixture is used for pressure transmission. NaK is FDA recognized safe (GRAS) substance.

Pressure ranges from:  0-500 to 0-15000 psi / 0-35 to 0-1000 bar
Accuracy < ±0.25% FSO (H); < ±0.5% FSO (M)
Hydraulic transmission system for pressure signal guarantees stability at working temperature (NaK).
Liquid conforming to RoHS Directive. NaK is defined as a safe substance (GRAS)
Quantity of NaK contained per model: K30 series (0.00183 in3) (30mm3), K31-K32-K33 series (0.00244 in3) (40mm3)
1/2-20UNF, M18x1.5 standard threads; other types available on request
Inconel 718 diaphragm with GTP coating for temperatures up to 1000°F (538°C)
15-5 PH diaphragm with GTP coating for temperatures up to 750° (F 400°C)
Hastelloy C276 diaphragm for temperatures up to 570°F (300°C)
17-7 PH corrugated diaphragm with GTP coating for ranges below 1500psi - 100bar