PK3 Series
Price range: $550.00 through $850.00
- 100 LB to 100K LB Capacities
- 0.15% Accuracy Class
- 2 mV/V Full Scale Output
- M5 or M8 Connector with Mate/Cable
- Miniature Compact Size
- IP67 Environmental Sealing
- Stainless Steel Construction
- Enhanced Diaphragm Design
- Compression Only
The PK3 Series is a miniature high performance load cell constructed of heat treated stainless steel. The PK3 is designed to accurately measure compression forces in capacities ranging from 0-100 LB to 0-100,000 LB. The diaphragm sensing design, coupled with an enhanced strain gage arrangement, produces excellent performance in a very low profile, compact package. The inherent low deflection of the PK3 Series yields a high dynamic response and superior output resolution for a wide range of applications. This load cell is Harsh Environment Sealed (IP67-Limited Immersion) by virtue of proprietary multi-redundant barriers uniquely integrated to protect all internal components. A M5 (100 LB to 30K LB) or M8 (50K LB to 100K LB) connector is standard. A mating connector with integral cable is included. The attributes of the PK3 make it ideal for measurements in the laboratory, structural testing, materials testing, and for general force measurements where a miniature low profile precision load cell solution is required.
| Performance | |
|---|---|
| Rated capacities ⁽¹⁾ (LB) | 100, 250, 500, 1K, 2K, 3K, 4K, 5K, 7.5K, 10K, 15K, 20K, 30K, 50K, 75K, 100K |
| Rated Output (FSO) | 2 mV/V |
| Output Tolerance | Nominal |
| Combined Error Band | ≤ 0.15 % FSO |
| Non-Linearity | ≤ 0.15 % FSO |
| Hysteresis | ≤ 0.15 % FSO |
| Non-Repeatability | ≤ 0.05 % of load |
| Zero balance | ≤ 3.0 % FSO |
| Creep (30 Minutes) | ≤ 0.05% of Load |
| ⁽¹⁾ (“K” = thousand) | |
| Electrical | |
|---|---|
| Input Impedance | 375 ohms (Nominal) |
| Output Impedance | 350 ohms (Nominal) |
| Insulation Resistance | >5000 Megohms @ 50VDC |
| Excitation Voltage | 10 V AC/DC (15 V maximum) |
| Cable Color Code | M5 Wiring: + Excitation (Red, Pin1) – Excitation (Black, Pin 2) + Signal (Green, Pin 3) – Signal (White, Pin 4) M8 Wiring: + Excitation (Red, Pin 1) – Excitation (Black, Pin 3) + Signal (Yellow, Pin 2) – Signal (White, Pin 4) |
| Cable Type | 100 LB to 30K LB:4-conductor, 28 AWG, TPU Jacket, M5 Axial Female Connector, Diameter: 0.130” 50K LB to 100K LB:4-conductor, 24 AWG, PVC Jacket, M8 Axial Female Connector, Diameter: 0.217” |
| Cable Length | See Dimensions Tab |
| Cable Termination | Finished Conductors |
| Mechanical | |
|---|---|
| Material | Stainless Steel |
| Finish | Natural |
| Safe Overload | Compression 150% FSO Side Load 10% FSO |
| Ultimate Overload | Compression 300% FSO Side Load: 20% FSO |
| Deflection | See Dimensions Tab |
| Weight | See Dimensions Tab |
| Mounting Bolt Torque | See Dimensions Tab |
| Environmental | |
|---|---|
| Temperature, Operating | -50 to +175 °F (-45 to +79°C) |
| Temperature, Compensated | 14 to +104 °F (-10 to +40°C) |
| Temperature, Storage | -50 to +175 °F (-45 to +79°C) |
| Temperature Effects | Zero < 0.005% FSO/°F < 0.009% FSO/°C |
| Temperature Effects | Output < 0.0010% of Rdg./°F < 0.0018% Rdg./°C |
| Sealing | IP67; Multi-redundant; Limited Immersion Tolerance |
| CAPACITY (LB) | D1 | D2 | H1 | H2 | G (B.C.) | SCREW/BOLT SIZE | RECOMMENDED BOLT TORQUE | DEFLECT | WEIGHT |
|---|---|---|---|---|---|---|---|---|---|
| 100, 250, 500, 1K, 2K | 1.35 | 0.32 | 0.50 | 0.07 | 1.050 | #4 | 8 IN-LBS | 0.001 | 0.5 LB |
| 3K, 4K, 5K, 7.5K, 10K | 1.72 | 0.40 | 0.65 | 0.08 | 1.313 | #6 | 15 IN-LBS | 0.001 | 0.5 LB |
| 15K, 20K, 30K | 2.35 | 0.60 | 1.00 | 0.12 | 1.875 | #8 | 27 IN-LBS | 0.002 | 1.0 LB |
| 50K, 75K, 100K | 3.97 | 1.50 | 1.63 | 0.18 | 3.125 | 5/16 | 17 FT-LBS | 0.003 | 4.5 LB |
