Model 173 • Capacitance Level Transmitter, Loop Powered, Digital Circuitry Features Optional HART® Protocol 10-point linearization for irregularly shaped tanks Digital RF admittance measuring circuitry Insensitive to process coatings and buildup Simple, two point calibration Reverse calibrated capability Built-in self-diagnostics Integral or remote electronics module Optional corrosion resistant NACE MR-01-75 Wide choice of wetted materials including 316 Stainless Steel, PTFE, Alloy 20, PVDF, Monel, and ceramics LCD digital display with 4 key input Epoxy sealed electronics module survives harsh environments and area vibration Built-in voltage spike protection, heavy 12 gauge terminals Model 173 Specifications Level Span: Range: Zero Suppression: Output: Loop Supply Voltage Range: Loop Impedance: Description The Delta Controls Model 173 Capacitance Level transmits a 4-20 mA direct current signal proportional to the level or volume in a vessel. Model 173 can be programmed for up to 10 fluid elevations to linearize the output signal in irregularly shaped tanks. 173 has built-in self-diagnostic. The potted electronics is capable of handling severe environments in most difficult services. The 173 is easily calibrated using two levels in the tank. No need to fill or empty the vessel as the second known elevation is acquired by a simple level change. Ambient Operating Temperature: Accuracy and Stability: Temperature Effect: 10 pF min 2000 pF max ≤ 2000 pF 4-20 mA, 2-wire, loop powered, isolated ≤ 0 pt linearization 13 DCV to 35 DCV 450 Ω at 24 V max 1000 Ω at 35 V max -20 °F to +175 °F (-29 °C to +79 °C) ≤ 0.2% of full scale (limited to 0.2 pF) 0 °F to +150 °F (-18 °C to 67 °C) < 0.2 in (water) Housing: Housing Material: Certifications: Housing Option: 4X hose-proof; 6 submergible; Class 1, Division 1, Groups BCD, EFG explosion-proof optional Aluminum, PVC, stainless steel HART® Protocol Third Party Listed by CSA NRTL/C (USA and Canada) Class I, Groups B, C and D; Class II, Groups E, F and G; Class III; Encl 4X 56 | Capacitance > Model 173 | deltacnt.com