NNR110A Crouzet

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 S reaches the high or max. probe. It remains energized until the level is Max below the low or min probe. The relay will remain de-energized until the min LEVEL high level is again reached. This control may also be used with only two probes by connecting the maximum and common terminals together. R The output is energized when the low probe is in contact with the liquid. S 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 LEVEL 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 R connecting the maximum and common terminals together. The output is 0 t de-energized when the level reaches the low probe. In both functions, If the container is conductive, It may be used as the SPECIFICATIONS: common probe in some applications Input 24, 48, 110, 220 VAC 15% (50/60 Hz) Maximum power consumption 24 VAC: 1.5 VA 48 VAC: 1.7 VA WIRING DIAGRAM: 110 VAC: 2 VA AC 220 VAC: 2 VA s Output . SPDT relay Contact material . AgCdO (90/10) Maximum loading 10 A AC resistive 1A DC inductive Pump Down (2) Maximum switching voltage 250 VAC 30 VDC Pump Up (1) Relay maximum power rating . 2500 VA 30 VDC 7 Mechanical life of relay 3 x 10 operations 5 Electrical life of relay . 2 x 10 at 2200 VA resistive load Max Min Common Probe isolation . Switching contact: 2000 VA AC Electrodes: 2000 VAC Probe sensitivity . 4.7 K ohm to 47 K ohm Probe voltage . 24 VAC, 60 Hz Probe current . 2 mA max. DIMENSIONS: Operating temperature +14F to 140F -10C to +60C 3.62 Weight . 4.6 oz. (130g) (92) Note: For best results use shielded cable with the probes and do not run probe cables with other wires. 1.5 2.16 (38.1) (55) 3 (76.2) ORDERING INFORMATION: N NR 220A MOUNTING SERIES INPUT POWER SERIES MOUNTING INPUT POWER NR N = Open PC Board 24A = 24 VAC 48A = 48 VAC 110A = 110 VAC 220A = 220 VAC Products and specifications subject to change without notice. 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