Powerterm L120C Single Output PSU/Battery Chargers
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• Temperature compensation for optimum battery float voltage in changing ambient temperatures.
• Universal 85-264Vac mains supply
• DIN Rail mounting with small panel footprint
batteries. If the installation is in an environment with widely fluctuating temperature, then fixed voltage chargers will either under-charge or over-charge the batteries.
The PTL120C is provided with external temperature compensation so that the float voltage to the battery is held at its optimum value at all times. Use Model C0003 Temperature probe (supplied separately).
Dual Mode Battery Charging
All sealed lead acid battery manufacturers specify a maximum charging current for the correct life and safe operation of sealed lead acid batteries. This maximum charging current for a battery is based upon the Ampere-hour capacity of the battery. Many conventional switch mode power supplies do not control their maximum delivered current and can cause batteries to be charged from flat with current levels that exceed the manufacturer’s recommendation. The PTL120C provides dual- mode charging which varies both voltage and current, with a well defined battery current limit, so that even when the batteries are discharged, the charging current will be controlled.
System Monitoring
The PTL120C provides an AC OK contact output. This output can be used to detect power failures without the need for an additional mains detection relay.
Battery Testing
Using the Test Input, the health of the battery can be checked. This function can be included in programmable remote equipment for highest availability of the standby system.
- A Complete solution for small battery-backed dc instrument power systems.
- Supply 12Vdc 8A or 24Vdc 6A loads
- Ideal for RTU’s, dataloggers, remote field instrumentation, alarm systems, etc. where 12 Volts dc or 24Volts dc is required.
- Low Voltage Cutout to preserve battery life
- Temperature Compensation for best standby
time. - Current limited dual mode battery charging gives optimum load performance
Features- Under-voltage cut-out to protect battery from deep discharge.
- 16A Peak Load capability
- AC detect output for mains monitoring.
Overview
The Powerterm L120C is a combined Power Supply and Battery Charger system with integrated standby battery management for small uninterruptible instrument supply applications.
Just connect mains supply, standby battery and load for an industrial grade standby power supply system.
This DIN rail mounted product is ideal for providing dc power to instrument systems where battery backup is necessary to ensure continuous system operation during power failure. Applications include RTU’s, dataloggers, remote field instruments, alarm systems and access controllers.
Managing battery-backed systems for optimum backup time and battery life can be tricky and expensive.
This product incorporates many features that make installing such systems simple and foolproof.
Battery Management
During prolonged power outages, the back-up batteries will eventually discharge. If the load remains connected, the batteries can enter their “deep” discharge phase, which can cause irreparable damage to the batteries, and reduce their capacity and life expectancy.
The PTL120C incorporates a low voltage cut-out that disconnects the loads when either battery voltage falls below its low voltage threshold.
The maximum float voltage necessary to ensure full charge, but not overcharge, is temperature dependent for lead-acid
• Temperature compensation for optimum battery float voltage in changing ambient temperatures.
• Universal 85-264Vac mains supply
• DIN Rail mounting with small panel footprint
batteries. If the installation is in an environment with widely fluctuating temperature, then fixed voltage chargers will either under-charge or over-charge the batteries.
The PTL120C is provided with external temperature compensation so that the float voltage to the battery is held at its optimum value at all times. Use Model C0003 Temperature probe (supplied separately).
Dual Mode Battery Charging
All sealed lead acid battery manufacturers specify a maximum charging current for the correct life and safe operation of sealed lead acid batteries. This maximum charging current for a battery is based upon the Ampere-hour capacity of the battery. Many conventional switch mode power supplies do not control their maximum delivered current and can cause batteries to be charged from flat with current levels that exceed the manufacturer’s recommendation. The PTL120C provides dual- mode charging which varies both voltage and current, with a well defined battery current limit, so that even when the batteries are discharged, the charging current will be controlled.
System Monitoring
The PTL120C provides an AC OK contact output. This output can be used to detect power failures without the need for an additional mains detection relay.
Battery Testing
Using the Test Input, the health of the battery can be checked. This function can be included in programmable remote equipment for highest availability of the standby system.