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Tachometers
Subminiature Tachometer Requires No External Power Supply
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H7ER
Subminiature 48 x 24 mm (1.89 x .94 in) Improved noise immunity Screw terminal and wire-wrap types available DC, and no-voltage input Printed circuit board version (H7Eu -P) Panel adapters for existing cutouts (order separately from accessories) Self-powered, 3 V lithium battery
Ordering Information
s TACHOMETER
Operating mode Display Reset system Number of digits* Count input Max. counting speed Max. revolutions displayed** Applicable encoder resolution Terminals Wire-wrap Screw UP type LCD digital, 5.1 mm (0.2 in) high Automatic (No external or manual reset) 4 5 No-voltage DC voltage input input 1 kcps 10 kcps 1,000 rps 1,000.0 rps 1 pulse/rev. H7ER H7ER-B H7ER-V H7ER-BV 10 pulses/rev. H7ER-V1 H7ER-BV1
10,000 rpm 60 pulses/rev. H7ER-V2 H7ER-BV2
1,000.0 rpm 600 pulses/rev. H7ER-V3 H7ER-BV3
Selectable*** Selectable*** — H7ER-SBV
* When there is no input, 0.0 or 0 is displayed. ** The maximum number of revolutions which may be displayed depends on the output specification of the encoder to be used. *** Many kinds of encoders can be used with H7ER-SBV. Confirm pulse compatibility by referring to specific values listed in "Setting the RPM Display of the H7ER-SBV", in Connections.
s ACCESSORIES
Description Panel adapters Fits 26 x 45 mm (1.02 x 1.77 in.) rectangular cutout Fits 27.5 x 52.5 mm (1.1 x 2.07 in.) rectangular cutout Fits 24.8 x 48.8 mm (0.98 x 1.92 in.) rectangular cutout Part number Y92F-75 Y92F-76 Y92F-77
Datasheet pdf - http://www.DataSheet4U.net/
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H7ER
H7ER
Specifications
s RATINGS
Supply voltage Input H7ER-SBV: 5 to 24 VDC ± 10%, Ripple (p-p): 5% max. DC voltage and No-voltage input types: Not required (powered by built-in battery) DC voltage input: 4.5 to 30 VDC at "High" (logic) level 0 to 2 VDC at "Low" (logic) level No-voltage input: Maximum short-circuit impedance: 10 kΩ max. Short-circuit residual voltage: 0.5 V max. Minimum open impedance: 500 kΩ min. 1 kcps (gate time: 1 second) 10 kcps (gate time: 1 second) Automatic (no external or manual reset)
Maximum counting speed Reset time
Approved by the following standards
UL CSA CE (EMC)
s CHARACTERISTICS
Insulation resistance Dielectric strength Vibration Shock Ambient temperature Humidity Battery life Weight 100 MΩ min. at 500 VDC 1,000 VAC 50/60 Hz for 1 minute between current-carrying terminals and exposed non-current-carrying metal parts Mechanical durability: 10 to 55 Hz; 0.75 mm (0.03 in) double amplitude Malfunction durability: 10 to 55 Hz; 0.3 mm (0.02 in) double amplitude Mechanical durability: Approx. 30 G Malfunction durability: Approx. 10 G Operating: -10° to 55°C (14° to 131°F) Storage: -25° to 65°C (-13° to 149°F) Operating: 35 to 85% RH 7 years min. of continuous operation H7ER-SBV: approx. 80 g (2.82 oz) DC voltage & No-voltage input types: approx. 60 g (2.12 oz) (including mounting bracket)
Timing Chart
Count input Multi.