1. Introduction
The SJE-Rhombus Tank Alert XT is an advanced indoor/outdoor alarm system designed to provide crucial audio and visual warnings for threatening liquid level conditions. This system is ideal for various applications including lift pump chambers, sump pump basins, holding tanks, sewage systems, agricultural uses, and other non-potable water environments. Its robust design ensures reliable operation and automatic reset functionality once the alarm condition is resolved.
Figure 1: The SJE-Rhombus Tank Alert XT system components. This image displays the gray alarm unit with a red beacon on top, a black float switch with its coiled cable, and a metal hose clamp along with two screws for mounting. The alarm unit features a "TANK ALERT XT" label, SJE-Rhombus logo, and a power/silence switch.
2. Key Features
- Weatherproof Enclosure: The alarm enclosure meets Type 3R water-tight standard, ensuring durability for indoor/outdoor use.
- Automatic Alarm Reset: The system automatically resets once the liquid level condition returns to normal.
- Horn Silence Switch: Allows the user to silence the audible alarm while the visual beacon remains active until the condition is resolved.
- Alarm Test Switch: Provides a convenient way to test the alarm's functionality.
- High Decibel Alarm Horn: Sounds at 85 decibels at 3 meters (10 feet) to ensure clear notification.
- Independent Operation: When installed on a separate circuit, the alarm system operates even if the pump circuit experiences a failure.
3. Specifications
| Specification | Detail |
|---|---|
| Voltage | 120 VAC, 50/60 Hz, 7 watts max. (alarm condition) |
| Alarm Enclosure Dimensions | 16.51 x 11.43 x 7.62 cm (6.5 x 4.5 x 3.0 inches) |
| Enclosure Type | Indoor/outdoor weatherproof thermoplastic, meets Type 3R water-tight standard |
| Alarm Horn | 85 decibels at 3 meters (10 feet), meets Type 3R water-tight standard |
| Alarm Beacon | Meets Type 3R water-tight standard |
| Test/Silence Switch | Certified to IP66 and IP68 standards |
| Float Switch Cable Length | 4.57 meters (15 feet), flexible 18 gauge, 2 conductor (UL) SJOW |
| Float Material | High impact, corrosion resistant PVC housing |
| Float Operating Temperature | Up to 60°C (140°F) |
| Float Switch Type | Hermetically sealed steel capsule with mercury-to-mercury contacts |
| Mounting Type | Wall Mount |
| Item Weight | 2.99 pounds |
| Product Dimensions | 6.5 x 3 x 4.5 inches |
4. Setup and Installation
Proper installation is crucial for the reliable operation of your Tank Alert XT system. It is recommended that installation be performed by a qualified electrician or technician in accordance with local electrical codes.
4.1. Components Overview
- Alarm Enclosure: Houses the alarm circuitry, horn, beacon, and control switches.
- Float Switch: A liquid level sensor that activates the alarm when a predetermined level is reached.
- Mounting Hardware: Includes a hose clamp and screws for securing the float switch and alarm unit.
4.2. Installation Steps
- Select Location: Choose a suitable indoor or outdoor location for the alarm enclosure. Ensure it is easily accessible for testing and silencing, and within reach of a 120 VAC power source. The enclosure is designed for wall mounting.
- Mount Alarm Enclosure: Securely mount the alarm enclosure to a flat surface using appropriate fasteners. Ensure it is level and stable.
- Install Float Switch:
- Determine the desired alarm activation level within the tank or basin. The float switch should be positioned so it activates when the liquid reaches this critical level.
- Use the provided mounting clamp to secure the float switch cable to the discharge pipe or a suitable mounting point inside the tank. Ensure the float can move freely up and down without obstruction.
- Route the float switch cable back to the alarm enclosure, protecting it from damage.
- Wire Connections:
- WARNING: Ensure power is disconnected before making any electrical connections.
- Connect the float switch wires to the designated terminals inside the alarm enclosure as per the wiring diagram provided with the product packaging.
- Connect the alarm unit to a dedicated 120 VAC power supply. For optimal safety and independent operation, it is recommended to connect the alarm to a separate circuit from the pump.
- Test System: Once all connections are secure and power is restored, perform a system test. Manually raise the float switch to simulate a high liquid level. The alarm horn should sound, and the red beacon should activate. Use the silence switch to confirm it silences the horn, and then lower the float to confirm auto-reset.
5. Operating Instructions
The Tank Alert XT system is designed for straightforward operation, providing clear indications of liquid level conditions.
5.1. Alarm Activation
When the liquid level in the tank or basin rises to the point where it activates the float switch, the alarm system will trigger:
- The audible alarm horn will sound at 85 decibels.
- The red alarm beacon on top of the enclosure will illuminate.
5.2. Silencing the Alarm
To silence the audible horn, press the SILENCE switch located on the front of the alarm enclosure. The horn will cease, but the red alarm beacon will remain illuminated. This visual indicator will stay on until the liquid level returns to normal, signifying that the condition has been remedied.
5.3. Automatic Reset
Once the liquid level drops below the float switch activation point, the system will automatically reset. The red alarm beacon will turn off, and the system will be ready to detect future high-level conditions.
5.4. Testing the Alarm
It is recommended to periodically test the alarm system to ensure proper functionality. Press the TEST switch on the front of the enclosure. This will simulate an alarm condition, activating both the horn and the beacon. Release the switch to return to normal operation.
6. Maintenance
Regular maintenance helps ensure the longevity and reliability of your Tank Alert XT system.
- Periodic Testing: Test the alarm system monthly using the TEST switch to confirm both audible and visual indicators are working.
- Float Switch Inspection: Periodically inspect the float switch and its cable for any signs of wear, damage, or buildup that might impede its free movement. Clean the float switch if necessary, especially in applications with viscous liquids or debris.
- Enclosure Check: Ensure the alarm enclosure is free from dirt, moisture, and insect intrusion. Keep the ventilation openings clear if present.
- Cable Integrity: Check all wiring and cables for secure connections and absence of damage.
- Power Supply: Verify that the alarm unit is continuously receiving power.
Note: Always disconnect power to the alarm unit before performing any maintenance or inspection inside the enclosure.
7. Troubleshooting
If your Tank Alert XT system is not functioning as expected, refer to the following common issues and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Alarm not sounding/beacon not lighting up during high level or test. | No power to the unit. Faulty float switch. Loose wiring connection. Damaged alarm unit. | Check power supply and circuit breaker. Verify float switch operation by manually raising it. Inspect all wiring connections inside the enclosure. Contact SJE-Rhombus support if unit is damaged. |
| Alarm sounds continuously. | Liquid level remains high. Float switch stuck in activated position. Faulty float switch or wiring. | Address the high liquid level condition. Inspect float switch for obstructions or debris; clean if necessary. Check float switch and wiring for damage. |
| Alarm horn silenced, but beacon remains off. | Faulty alarm beacon. Internal wiring issue. | Contact SJE-Rhombus support for repair or replacement. |
| Alarm does not auto-reset. | Liquid level still high. Float switch stuck or damaged. | Ensure liquid level has dropped below activation point. Inspect and clean float switch; ensure free movement. Replace if damaged. |
If troubleshooting steps do not resolve the issue, please contact SJE-Rhombus customer support.
8. Warranty and Support
SJE-Rhombus products are manufactured to high standards and are typically backed by a manufacturer's warranty. Specific warranty terms and conditions, including duration and coverage, are usually provided with the product packaging or can be found on the official SJE-Rhombus website.
For technical assistance, warranty claims, or to purchase replacement parts, please contact SJE-Rhombus customer support directly. Have your product model number (1005481) and date of purchase available when contacting support.
SJE-Rhombus Official Website: www.sjerhombus.com
Please note that product specifications and features are subject to change without notice. Always refer to the latest documentation provided by the manufacturer.
