The KD Series are pressure sensors  for use in high temperature applications where the process temperatures may reach 538°C (1000°F) such as high temperature engineered polymers. The K Series utilizes standard melt pressure principles and construction; strain sensing technology is bonded foil strain gage. The uses a near incompressible NAK (Sodium Potassium) for pressure transmission. NaK is FDA recognized safe (GRAS) substance.

AUTOZERO FUNCTION
All signal variations in the absence of pressure can be
eliminated by using the Autozero function. This function is activated by closing a magnetic contact located on the transmitter housing. he procedure is permitted only with pressure at zero. AUTO-COMPENSATED INFLUENCE OF MELT TEMPERATURE Thanks to internal self-compensation, the KSP series transmitter cancels the effect of pressure signal variation caused by variation of Melt temperature. This reduces at the minimum the read error caused by heating of the filling fluid (typical of all sensors built with “filled” technology ).
The drift values declared in the version with Autocompensation are valid for media temperatures up to 500°C
.

Pressure ranges from: 0-35 ato 0-1000 bar / 0-500 to 0-150000 psi	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: 3 3 ) [0.00183 in ], KN1, KN2, KN3 KN0 series (30mm 3 3 ) [0.00244 in ] (40mm
1/2-20UNF, M18x1.5 standard threads; other types available on request	Autozero function on board / external option
Stem drift Autocompensation function (SP version	Inconel 718 diaphragm with GTP coating for temperatures up to 538°C (1000°F)
15-5 PH diaphragm with GTP coating for temperatures up to 400°C (750°F)	HastelloyC276 diaphragm for temperatures up to 300°C (570°F)
17-7 PH corrugated diaphragm with GTP coating for ranges below 100 bar-1500 psi	Material of stem 17-4PH

 

 

Gefran KD Series Data Sheet

Gefran KD Series Broschure

Gefran KD Series Installation Manual

Gefran KD Series Instruction and Maintenance Manual

Gefran KD Series Operation Manual