Projecta SPA100 Manual

The Projecta SPA100 is a 100W Pure Sine Wave Power Inverter designed for converting 12V DC battery power to 230V AC household power. It features pure sine wave output for sensitive electronics, overload and short circuit protection, thermal shutdown, low battery alarm/shutdown, remote on/off capability, and cooling fan. Ideal for powering laptops, medical equipment, small appliances, and tools in vehicles, caravans, or off-grid applications. Below are key sections for safety, features, installation, operation, specifications, and troubleshooting.

Features at a Glance

Key components: DC input terminals, AC output socket, Status LED indicators, Cooling fan, Remote control port, Overload protection circuit.

Feature	Description
Pure Sine Wave Output	Clean 230V AC power suitable for sensitive electronics
Continuous Power	100W continuous, 200W peak surge capacity
DC Input	12V DC (10-15V range) from battery
AC Output	230V AC, 50Hz, single socket
Protection	Overload, short circuit, over temperature, low voltage
Efficiency	>85% typical efficiency
Remote Port	For optional remote on/off switch
Cooling Fan	Thermally controlled for quiet operation
LED Indicators	Power, fault, and low battery status
Operating Temp	-20°C to 40°C

Installation

Unpack and inspect contents. Choose suitable location with ventilation.

1. Connect to battery: Use appropriate gauge cables (min 4mm² for <1m). Connect RED to positive (+), BLACK to negative (-) terminals.
2. Secure inverter: Mount in dry, well-ventilated area away from heat sources.
3. Connect remote (optional): Plug remote switch into dedicated port.
4. Ensure all connections are tight and insulated.

WARNING! Risk of electric shock. Ensure battery is disconnected during installation. Do not reverse polarity.

First-Time Setup

After installation, verify connections before powering on.

1. Check battery voltage: Ensure battery is between 10V and 15V DC.
2. Power on: Press power switch; green LED should illuminate.
3. Test output: Connect a small load (e.g., phone charger) to verify operation.
4. Monitor indicators: Ensure no fault LEDs are active during normal operation.

CAUTION! Do not connect loads exceeding 100W continuous. Ensure adequate ventilation around inverter.

Specifications

• Model: SPA100
• Continuous Power: 100W
• Peak Power: 200W (surge, 5 seconds)
• Input Voltage: 12V DC (10-15V range)
• Output Voltage: 230V AC ±10%
• Output Frequency: 50Hz ±0.5Hz
• Waveform: Pure Sine Wave
• Efficiency: >85% typical
• Low Voltage Alarm: 10.5V ±0.5V
• Low Voltage Shutdown: 10.0V ±0.5V
• Protections: Overload, short circuit, over temperature, reverse polarity
• Cooling: Temperature-controlled fan
• Operating Temperature: -20°C to 40°C
• Dimensions: Approx. 150mm x 90mm x 50mm

Controls and Indicators

Front Panel: Power switch, Status LED indicators.

LED Indicators: - Green (POWER): Steady = normal operation; Off = no power or shutdown. - Red (FAULT): Flashing = overload/short circuit; Steady = over temperature. - Yellow (LOW BATTERY): Illuminates when battery voltage drops below 10.5V.

Rear Panel: DC input terminals, AC output socket, Remote control port, Cooling fan vent.

Remote Control (optional): On/Off switch for convenient control from distance.

Connecting Devices

Connect AC devices to the output socket. Ensure total load does not exceed 100W.

1. Check device power rating: Verify wattage on device label or manual.
2. Power off inverter before connecting/disconnecting devices.
3. Plug device into AC socket securely.
4. Power on inverter first, then turn on connected device.

Tip: For motorized devices (e.g., small pumps), ensure surge power (start-up current) is within 200W peak capacity.

Operation Guidelines

Designed for continuous operation within specified limits.

1. Monitor battery voltage: Avoid deep discharge to prolong battery life.
2. Ventilation: Ensure fan vents are unobstructed.
3. Load management: Do not exceed 100W continuous load.
4. Shutdown sequence: Turn off connected devices first, then inverter.
5. Remote operation: Use optional remote for convenient on/off control.
6. Noise: Fan may activate under high load or temperature.

WARNING! Do not use with high-surge devices exceeding 200W peak. Not for use with life-support medical equipment without backup.

Safety Features

Overload Protection: Automatically shuts down if load exceeds 100W continuous; resets after cooling and load reduction. Short Circuit Protection: Immediate shutdown on output short; reset by power cycling. Thermal Protection: Shuts down if internal temperature exceeds safe limit; resumes after cooling. Low Battery Protection: Alarm (yellow LED) at ~10.5V; shutdown at ~10.0V to protect battery. Reverse Polarity Protection: Internal fuse protects against incorrect DC connection.

Care & Maintenance

Keep unit clean and dry. Periodically check connections for corrosion or looseness.

Cleaning: Use dry cloth only; do not use liquids or solvents.

Storage: Store in dry place when not in use. Disconnect from battery if storing long-term.

CAUTION! Do not open casing; no user-serviceable parts inside. Refer to qualified technician for internal issues.

Regulatory Information

Complies with relevant Australian and New Zealand standards. EMC compliance for residential and vehicular environments. Copyright © Projecta. For support, visit www.projecta.com.au or contact customer service. Warranty: 12 months from date of purchase under normal use.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No output, no LED	No DC power	Check battery connections and voltage; verify fuse.
Red LED flashing	Overload or short circuit	Reduce connected load; check for short circuit; power cycle.
Red LED steady	Over temperature	Allow to cool; improve ventilation; reduce load.
Yellow LED on	Low battery voltage	Recharge battery; check battery health.
Fan not running	Normal under low load	Fan is temperature-controlled; may not run if cool.
Inverter shuts down under load	Overload or high surge	Reduce load; ensure surge devices within 200W peak.
Hum from connected device	Modified sine wave device	Some devices may hum with pure sine wave; usually harmless.

Reset: Disconnect from battery for 30 seconds, then reconnect.

Service: Contact Projecta customer service or authorized service center.