DERELL DGG 776 Series Multifunctional Counters and Tachometers

(A hardware update is currently in progress)

General Features

DERELL DGG 44, DGG 776 and DGG 99 series tachometers stand out with their compact designs and multifunctional features. These devices are specially designed for precise speed and position measurements (counter) and are essential components of modern automation systems.

Main Technical Features

Compact Size: Panel depth is only 59 mm.
Display Visibility and Readability:
   DGG 44: 12 mm digit height, 4-digit display (48×48 mm)
   DGG 446: 12 mm digit height, 6-digit display (48×48 mm)
   DGG 77: 10 mm digit height, 4-digit display (72×72 mm)
   DGG 776: 10 mm digit height, 6-digit display (72×72 mm)
   DGG 99: 16 mm digit height, 6-digit display (96×96 mm)

Selectable Display Colors: Choose between red, green, or orange for easy status monitoring.

Note: DERELL DGG-776-R-A model operates on 220 VAC supply voltage. For DC voltage or vehicle applications, please refer to DERELL DGG-776-R-B model.

Safety and Reliability

Isolated Power Supply and Input Circuits: Ensures protection against incorrect connections with internal isolation.
Adjustable Limit Value: Set max limits to prevent damage caused by misconfiguration.
Output Counter Function: Tracks output activations and provides maintenance alerts in advance.

Additional Features

IP66 Water and Dust Protection: Ensures durability in harsh environments.
Dual Independent Tachometer Inputs: Allows differential measurement, absolute ratio, and error rate calculations.
Peak and Bottom Hold: Stores max and min speed values for precise analysis.
Output Delay and Hysteresis Adjustment: Enables stable and controlled output signals.
Averaging and Auto Reset: Used for high accuracy in measurements.

Technical Data

Power Supply: 12–24 VDC or 100–240 VAC options available.
Output Types: Relay output (3 A @ 250 VAC) or transistor output (100 mA @ 30 VDC).
Measurement Frequency Range: 0.001 Hz – 100 kHz, NPN or PNP compatible.
Prescale Adjustment: Adjustable between 0.001 and 99.999

Applications

DERELL DGG 446, DGG 77 and DGG 99 series are suitable for industrial machines, packaging lines, conveyor systems, and textile machinery.

Installation and Commissioning Recommendations

Installation Tips:
   Strictly follow wiring instructions and set device parameters precisely.
   Use recommended gaskets and mounting accessories for IP66 sealing.
   Ensure correct limit values are configured during initial setup.

Editor's Recommendations and Experiences

Input Isolation: Crucial for device protection and signal reliability.
Thermal Management: Consider cooling and ventilation solutions for high ambient temperatures.
Periodic Checks: Regularly check the output counter and perform preventive maintenance when needed.

DERELL DGG series tachometers increase both the efficiency and safety of your production line with their solid build and advanced functionality.

** THIS PRODUCT IS DESIGNED FOR INDUSTRIAL MACHINE ENVIRONMENTS AND HAS GALVANIC ISOLATION TO WORK SAFELY IN THE SAME PANEL WITH DEVICES THAT PRODUCE ELECTRICAL NOISE SUCH AS FREQUENCY INVERTERS AND POWER SUPPLIES.

> DERELL DGG 776 Series User Manual (PDF)

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