Description
The K3 Series are 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, but uses a near incompressible NAK (Sodium Potassium) for pressure transmission.
The K Series strain sensing technology is bonded foil strain gage.
TECHNICAL DATA OF K3 NAK
| Accuracy (1) | H <±0.25%FSO (100…1000 bar) M <±0.5%FSO (35…1000 bar) |
| Resolution | Infinite |
| Measurement range | 0..35 a 0..1000bar 0..500 a 0..15000psi |
| Maximum overpressure | 2 x FSO 1.5 x FSO over 700bar/10000psi |
| Measurement principle | Strain gauge |
| Power supply | 6..12Vdc (10Vdc typical) |
| Bridge resistance | 350 Ohm (550 Ohm below 100bar – 1500psi) |
| Insulation resistance (at 50Vdc) | >1000 MOhm |
| Output signal Full Scale FSO (tolerance ± 0;5% FSO) | 2.5 mV/V (option 2) 3.33 mV/V (option 3) |
| Zero balance | ±5% |
| Calibration signal | 80% FSO |
| Compensated temperature range | 0…+100°C 32…212°F |
| Maximum temperature range | -30…+120°C -22…250°F |
| Thermal drift in compesated range: Zero / Calibration / Sensibility | < 0.02% FSO/°C < 0.01% FSO/°F |
| Diaphragm maximum temperature | 538°C 1000°F |
| Zero drift due to change in process temperature) | < 3,5 bar/100°C < 28 psi/100°F |
| Thermocouple (model K32) | STD : type “J” (isolated junction) |
| Protection degree (with 6-pole female connector) | IP65 |
| Electrical connections | Conn. 6-pin VPT07RA10-6PT (PT02A-10-6P) Conn.8-pin PC02E-12-8P |
FSO = Full Scale Output
(1) BFSL method (Best Fit Straight Line): includes combined effects of Non- Linearity, Hysteresis and Repeatability.
