CONTROLS CONTROLS NNR SERIES LIQUID LEVEL CONTROL PUMP UP OR DOWN SWITCH SELECTABLE UL listed * * * * CSA recognized 10 Amp SPDT Rated Sensitivity Adjustment 4.7 k to 47 k One, Two or Three Probe Operation 24 VAC to 220 VAC Voltages A - Pump down function: the output relay energizes when the liquid level reaches the high or max. probe. It remains energized until the level is below the low or min probe. The relay will remain de-energized until the high level is again reached. This control may also be used with only two probes by connecting the maximum and common terminals together. The output is energized when the low probe is in contact with the liquid. S Max min LEVEL R S LEVEL R 0 t B - Pump up function: when power is supplied to the unit, the output relay is energized. When the level reaches the high probe the relay is de-energized. The relay is energized again when the level falls below the lob probe. The control may also be used with only two probes by connecting the maximum and common terminals together. The output is de-energized when the level reaches the low probe. In both functions, If the container is conductive, It may be used as the common probe in some applications SPECIFICATIONS: Input . . . . . . . . . . . . . . . . . . . . . . 24, 48, 110, 220 VAC 15% (50/60 Hz) Maximum power consumption . . 24 VAC: 1.5 VA 48 VAC: 1.7 VA 110 VAC: 2 VA 220 VAC: 2 VA Output . . . . . . . . . . . . . . . . . . . . . SPDT relay Contact material . . . . . . . . . . . . . AgCdO (90/10) Maximum loading . . . . . . . . . . . . 10 A AC resistive 1A DC inductive Maximum switching voltage . . . . 250 VAC 30 VDC Relay maximum power rating . . . 2500 VA 30 VDC Mechanical life of relay . . . . . . . . 3 x 107 operations Electrical life of relay . . . . . . . . . 2 x 105 at 2200 VA resistive load Probe isolation . . . . . . . . . . . . . . . Switching contact: 2000 VA Electrodes: 2000 VAC Probe sensitivity . . . . . . . . . . . . . 4.7 K ohm to 47 K ohm Probe voltage . . . . . . . . . . . . . . . 24 VAC, 60 Hz Probe current . . . . . . . . . . . . . . . 2 mA max. Operating temperature . . . . . . . . +14F to 140F -10C to +60C Weight . . . . . . . . . . . . . . . . . . . . . 4.6 oz. (130g) WIRING DIAGRAM: AC s Pump Down (2) Pump Up (1) AC DIMENSIONS: 3.62 (92) Note: For best results use shielded cable with the probes and do not run probe cables with other wires. 1.5 (38.1) 2.16 (55) 3 (76.2) ORDERING INFORMATION: MOUNTING N = Open PC Board Common Max Min N NR 220A MOUNTING SERIES INPUT POWER SERIES NR Products and specifications subject to change without notice. INPUT POWER 24A = 24 VAC 48A = 48 VAC 110A = 110 VAC 220A = 220 VAC Consult factory for application assistance. 204 Airline Drive, Suite 300, Coppell, Texas 75019 / Tel: (800) 677-5311 / FAX: (800) 677-3865 / www.crouzet-usa.com 5-6 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Crouzet: NNR110A