产品描术 Z-Tron Ⅳ Z4 系列 AMETEK DE射频导纳料位计 Z4系列料位计常用型号：Z4-3002-753、Z4-3002-101、Z4-3002-762、Z4-3502-766、Z4-3002-701 Z4-1002-753、Z4-1002-101、Z4-1002-762、Z4-1502-766、Z4-1002-701 700-1202-001、700-1202-014、700-0001-018、700-0206-101、700-0029-001、 700-0029-022、700-0029-023、700-0029-102、700-0029-103、700-0029-104 Power Requirements: AC Units - Field Adjustable: 95-145 VAC 50/60 Hz 2 Watt 215-265 VAC 50/60 Hz 2 Watt DC Units: 24 VDC Unit: 19-29 VDC input 2 Watt Sensitivity: 0.3pF&nbs******bsp;less Operating Point Range: 0 - 80 pF (20 Turn Pot / 4 pF per Turn) Extended range with external pad capacitor Pad ratio 1:1 Load Resistance: Center to Ground 1500 Ohms Center to Shield 750 Ohms Shield to Ground 750 Ohms Failsafe: Field adjustable to either High-Level Fail-Safe (HLFS) or Low-Level Fail-Safe (LLFS) Output: DPDT relay closure Contact Rating: 5A @ 120 Vac non-inductive 2A @ 230 Vac non-inductive Ambient Temperature: -40°F to 145°F (-40°C to 63°C) Temperature Effect: 0.5pF/50°F Line Voltage Effect: 0.2pF/20V @ 120 Vac Stability: 0.15pF/6 mo. maximum shift Spark Protection: 100 Amp Mounting: (Probe Dependant) ?-inch NPT (Typical) Housing: The standard housing meets the following classifications: Nema 1 General-Purpose Nema 2 Drip-Tight Nema 3 Weather-Resistant Nema 4 Waterproof Nema 5 Dust-Tight Nema 12 Industrial Use FM approval on housing only. If agency approval is required use the Drexelbrook PXL The Point? instrument for point level control. Time Delay: 0-60 seconds (3/4 Turn Pot) 270° Potentiometer Approvals FM / FMC 3810 General Purpose (Pending)