DT-501X Panel Meter Tachometer
The DT-501X Panel Meter Tachometer is a versatile, high-performance instrument engineered for precise measurement of speed, process rate, or elapsed time when paired with a compatible process speed sensor. Its compact design, featuring a 0.87” (22 mm) high, easy-to-read display and a shallow 3.6” (92 mm) panel depth, ensures seamless integration even in confined enclosures or tight panel spaces.
Broad Signal Compatibility
The DT-501X supports a wide array of standard input signals, including NPN, contact closures, and square or sine wave pulses. It can interface with devices such as pulse generators, proximity sensors, photoelectric sensors, magnetic sensors, rotary encoders, and NPN OC transistors, providing flexibility across a variety of industrial applications.
Multiple Measurement Modes
This tachometer offers four selectable operating modes to accommodate diverse monitoring needs:
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Tachometer Mode: Measures rotational speed of motors and machinery.
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Flowmeter Mode: Tracks volumetric flow rates.
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Process Time Span Mode: Monitors durations of specific operations.
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Elapsed Time Mode: Displays the inverse of the input signal, ideal for applications like oven conveyor timing.
An intuitive auto-teach scaling function streamlines setup by automatically matching the display to the input signal from the sensor, reducing configuration time and improving accuracy.
Optional Outputs for Automation
For enhanced automation and process control, the DT-501X can be equipped with analog, contact, or SSR outputs, allowing it to trigger alarms, control relays, or integrate with broader control systems.
Ideal Applications
The DT-501X is perfectly suited for industrial speed and timing applications, including:
- Machining operation timing
- Conveyor speed monitoring
- Motor performance measurement
- Volumetric flowrate tracking
- Oven curing or processing elapsed time
For users looking to replace the DOPFVTR module, the DT-501XA-FVT variant provides a direct upgrade path.
Features
- 0.87 in (22 mm) high, 6-digit red LED display provides clear visibility of measurement values, even from longer viewing distances
- Integrated sensor power supply eliminates the need for an external power source
- Scalable programming gives user the flexibility to set up and monitor virtually any process
- Selectable update time allows operator to speed up/slow down display changes
- Built-in test mode allows quick verification of display segments and keypad functionality
- Supports NPN open collector, contact inputs, and both square-wave and sine-wave signals
- Teaching function auto-scales the display by inputting signal from sensor
- NEMA 4X (IP66) front cover protection
- Auto Zero function zeroes the display after the final signal initiates a preprogrammed time countdown
- Max. Min. automatically stored into memory; quickly retrieved via keypad
- 1/8 DIN size with minimal depth of only 3.6" (92 mm)
- FVT Modules provides 0-1, 1-5, 0-10 VDC or 4-20 mA Analog Output (switch-selectable)
Dimensions
Front Panel
- Width: 96 mm
- Height: 48 mm
Overall Housing
- Top width: 91.5 mm
- Mounting adapter width: 101.5 mm
- Depth (from panel front): 80 mm
- Additional rear depth: 12 mm
- Total depth: 92 mm
Panel Cut-Out
- Width: 92 mm (+0.8 / 0)
- Height: 45 mm (+0.6 / 0)
Panel Thickness
- 1.0 - 5 mm
Side Profile
- Total height: 44.5 mm
- Overall length including rear connector: 120 mm
- Body height (rear section): 70 mm
Specifications
| Input Range | 0.0067 Hz to 100 kHz in Tachometer, Flowmeter & Elapsed time modes; 10 ms to 3600 s in Time Span mode |
| Input Signal Characteristics | NPN open collector input: max. frequency 100 kHz / Contact input: max. frequency 20 Hz / Square wave input: max. frequency 30 kHz – Sine wave input (magnetic pickup): max. frequency 10 kHz |
| Display Range | Tachometer/Flowmeter: 0 – 999999; with 10-1 to 10-5 decimal point position selection |
| Elapsed Time | 0:00:00 – 9:59:59 (hr., min., sec., base 60) ; or 0:00 to 999:99 (second: 1/100 sec, base 10 display) |
| Process Time Span | 0:00:00 – 0:59:59 (hr., min., sec., base 60) or 0.00 – 999.99 sec. (second: 1/100 sec, base 10 display) with zero suppression function |
| Display | Red 7 segment 6 digit LED, numeral height of 0.87” (22 mm); negative (-) sign available |
| Accuracy | Tachometer/ Flowmeter & Elapsed Time: ± 0.008 % ± 1 digit; Process Time Span: ± 0.1 % ± 1 digit |
| Display Update Time | 0.2, 0.5, 1, 2, 5, 10, 15, 30, 60 sec. selectabel in Tachometer, Flowmeter & Elapsed Time modes |
| Auto Zero Time | Tachometer & Flowmeter Modes: 0.1 to 150 Seconds; Elapsed Time & Time Span Modes: 0.1 to 3600 Seconds |
| Optional Outputs | NPN; contact relay; analog output: (selectable) 0-1, 1-5, 0-10 VDC & 4-20 mA |
| Power Requirement | 85 – 264 VAC (50/60 Hz) Optional (9–35 VDC also available, DT-501XD) |
| Sensor Power Supply | 12 VDC (100 mA) |
| Temperature Limits | 32 – 113°F (0 – 45°C) |
| Humidity Limits | 35 to 85% RH |
| Protection Class | Front Panel: NEMA 4X (IP66) ; Rear Terminal Block NEMA 1 (IP20) |
| Dimensions | 3.8 x 1.9 x 3.6" (96 x 48 x 92 mm) |
| Weight | Product Weight: 0.44 lb (200 g) Package Weight: 0.73 lb (330 g) |
| Approvals | RoHS |
| Warranty | 1 year |
| Included Accessories | Waterproofing O’ring, engineering unit decal sheet |
| Country of Origin | Japan |
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Availability: Available: 1 - 3 days, Delivery time: 1 - 3 weeks, special order request