H7ER Totalisers Self-powered tachometer The H7E series is available with large display with 8.6 mm character height. It includes models with backlight for improved visibility in dimly lit places. The H7E family includes total counters, time counters, tachometersand PCB mounted counters. • Size in mm (H×W×D)24×48×53.5, 1/32 DIN sizehousing • 5 digits, 8.6 mm character height • Black or light-greyhousing • Dual revolutiondisplay Ordering information Count inputDisplayOrder code Max. revolutions displayed (applicable encoder resolution) 1,000 s-1 (1 pulse/rev.) 1,000 min-1 (60 pulse/rev.) 1,000.0 s-1 (10 pulse/rev) 1,000.0 min-1 (600 pulse/rev) <-> 10,000 min-1 (60 pulse/rev) (switchable) Light grey body Black body Light grey body Black body No-voltage input 7-segment LCDH7ER-N H7ER-N-B PNP/NPN universal DC voltage input 7-segment LCD H7ER-NV H7ER-NV-B H7ER-NV1 H7ER-NV1-B 7-segment LCD with backlight H7ER-NV-HH7ER-NV-BH H7ER-NV1-HH7ER-NV1-BH Specifications Item H7ER-NV1-_/H7ER-NV1-_H H7ER-NV-_/H7ER-NV-_H H7ER-N-_ Operating mode Up type Mounting methodFlush mounting External connections Screw terminals, wire-wrap terminals Display7-segment LCD with or without backlight, zero suppression (character height: 8.6 mm) Number of digits54 Max. revolutions displayed1,000.0 s-1 (when encoder resolution of 10 pulse/rev is used) 1,000.0 min-1 (when encoder resolu- tion of 600 pulse/rev is used) <-> 10,000 min-1 (when encoder reso- lution of 60 pulse/rev is used) (switchable with switch) 1,000 s-1 (when encoder resolution of 1 pulse/rev is used) 1,000 min-1 (when encoder resolution of 60 pulse/rev is used) AttachmentWaterproof packing, flush mounting bracket, revolution unit labels Supply voltage Backlight model: 24 VDC (0.3 W max.) (for backlight lit) No-backlight model: Not required (powered by built-in battery) Count inputHigh (logic) level: 4.5 to 30 VDC Low (logic) level: 0 to 2 VDC (Input impedance: Approx. 4.7 k) Max. counting speed10 kHz1 kHz Minimum signal width 10 kHz: 0.05 ms, 1 kHz: 0.5 ms Not required (powered by built-in battery) No voltage input Maximum short-circuit impedance: 10 k max. Short-circuit residual voltage: 0.5 V max. Minimum open impedance: 750 k min. Ambient temperature Operating: –10 to 55°C (with no condensation or icing), storage: –25 to 65°C (with no condensation or icing) Degree of protectionFront-panel: IP66, NEMA4 with waterproof packing, terminal block: IP20 Battery life (reference) 7 years min. with continuous input at 25°C (lithium battery) Size in mm (H×W×D)24×48×53.5 570
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