DIGITEN HMC-5H-LCD 5-Digit LCD Digital Counter User Manual

1. Product Overview

The DIGITEN HMC-5H-LCD is a reliable 5-digit LCD digital counter designed for various industrial and DIY applications. It features a large, clear display and operates on common AA 1.5V batteries, eliminating the need for an external power supply. The counter comes with a proximity switch sensor and a magnet for accurate and reliable counting. Its robust design includes seismic protection to prevent data loss and ensures a long service life without mechanical abrasion.

Front view of the DIGITEN HMC-5H-LCD digital counter with its proximity sensor and magnet. — Figure 1: DIGITEN HMC-5H-LCD Digital Counter with Proximity Sensor

2. Package Contents

Please check the package carefully to ensure all items are present:

1 x Digital 5-Digit LCD Punch Counter (HMC-5H-LCD)
1 x Counter mounting bracket
1 x Proximity switch sensor (2-wire, 110mm length)
1 x Switch mounting bracket
1 x Strong magnet

3. Specifications

Feature	Specification
Model Number	HMC-5H-LCD
Type	5-digit Digital Counter
Display	5-digit LCD
Count Range	0 - 99999
Power Supply	1.5V AA cell (battery included)
Count Frequency (Max)	20Hz (20 times/second)
Minimum Count Pulse Width	10ms
Reset Method	Manual (panel button) / External
Minimum Reset Pulse Width	0.1s
Proximity Switch Sensor	2 wires, 110mm length, with magnet
Detecting Distance	3-10mm
Operating Temperature	-5°C to 40°C
Counter Dimensions (L x W x H)	63 x 38 x 30 mm
Mounting Hole Size	61 x 36 mm
Max Resistance (Connect Point On)	≤ 10KΩ
Min Resistance (Connect Point Off)	≥ 500KΩ
Net Weight	0.05kg
Certification	CE

Dimensional drawing showing the counter, proximity sensor, and magnet with measurements in millimeters. — Figure 2: Product Dimensions

4. Setup and Installation

4.1. Battery Installation

Locate the battery compartment on the back of the counter.
Carefully remove the battery compartment cover.
Insert one AA 1.5V battery, ensuring correct polarity (+/-).
Replace the battery compartment cover.

View of the counter with the battery compartment open, showing where to insert the AA battery. — Figure 3: Battery Compartment

Close-up of an AA battery correctly installed in the counter's battery compartment. — Figure 4: Battery Installed

4.2. Counter Mounting

The counter can be mounted using the provided bracket. The mounting hole size is 61 x 36 mm.

Rear view of the counter showing the terminal block and the metal mounting bracket attached with screws. — Figure 5: Counter Rear View with Mounting Bracket

4.3. Proximity Sensor and Magnet Installation

Mount the proximity switch sensor and the magnet in a way that the magnet passes within the detecting distance (3-10mm) of the sensor for each count event. Ensure the sensor and magnet are securely fastened using their respective brackets.

Diagram showing the proximity sensor and a magnet mounted on a metal strip, illustrating their relative positions for detection. — Figure 6: Proximity Sensor and Magnet Setup

Close-up of the cylindrical proximity sensor and a small round magnet. — Figure 7: Proximity Sensor and Magnet

4.4. Wiring Diagram

Connect the proximity switch sensor to the "COUNT" terminals (+ and -) on the back of the counter. An optional external reset switch can be connected to the "RESET" terminals.

Wiring diagram showing connections for the proximity sensor to the COUNT terminals and an optional reset switch to the RESET terminals. — Figure 8: Wiring Diagram

Terminal Connections:

COUNT (+/-): Connect the two wires from the proximity switch sensor here.
RESET (optional): Connect an external momentary switch here for remote reset functionality.

5. Operating Instructions

5.1. Power On/Off

The counter powers on automatically when the battery is installed. There is no dedicated power button. The LCD display will show the current count.

5.2. Counting

The counter increments by one each time the proximity sensor detects the magnet. Ensure the magnet passes within the 3-10mm detection range of the sensor.

5.3. Pause Function

To pause counting, press the PAUSE button on the front panel. The display will hold its current value.
To resume counting, press the PAUSE button again.

5.4. Reset Function

The counter can be reset to zero using two methods:

Panel Reset: Press the RESET button on the front panel.
External Reset: If an external reset switch is connected (as per Section 4.4), activate that switch.

Note: The minimum pulse width for a reset signal is 0.1 seconds.

6. Maintenance

6.1. Battery Replacement

When the display becomes dim or the counter stops responding, it's time to replace the AA 1.5V battery. Follow the steps in Section 4.1 for battery installation.

6.2. Cleaning

Wipe the counter and sensor with a soft, dry cloth. Do not use abrasive cleaners or solvents, as they may damage the device.

6.3. Storage

If storing the counter for an extended period, remove the battery to prevent leakage and potential damage to the device.

7. Troubleshooting

Problem	Possible Cause	Solution
Counter not displaying or dim display	Low or dead battery	Replace the AA 1.5V battery (see Section 6.1).
Counter not incrementing	Proximity sensor not detecting magnet. Sensor or magnet improperly positioned. Sensor wires loose or incorrectly connected. Magnet too far from the sensor.	Ensure the magnet passes within 3-10mm of the sensor. Check sensor and magnet alignment. Verify wiring connections to the "COUNT" terminals (see Section 4.4).
Reset function not working	RESET button malfunction. External reset switch wires loose or incorrectly connected. External reset switch faulty.	Try using the other reset method (panel or external). Check wiring for the external reset switch (see Section 4.4). Test the external reset switch for functionality.

8. User Tips

For optimal performance, ensure the proximity sensor and magnet are securely mounted and aligned.
Regularly check the battery level, especially in critical applications, to avoid unexpected power loss.
When using the external reset function, ensure the switch provides a clean pulse of at least 0.1 seconds.
The counter's seismic design helps protect data, but avoid excessive vibrations or impacts to prolong its lifespan.

9. Warranty and Support

For any issues or questions regarding your DIGITEN HMC-5H-LCD digital counter, please contact the seller or manufacturer's support channel. Keep your purchase records for warranty claims.