Computronic Controls Sentinel 300P - Manual (Page 2)

Sentinel 300P installation, operation & maintenance ci0039 p2/12 issue 9 2015-09-04
Important Safety Information
– Read and Save These Instructions
This manual contains important safety and operating instructions for all SNTL300P and ESNTL300P models.

Do not expose the battery charger to rain, snow or wet environments.

The use of any attachment not recommended or sold by the battery charger manufacturer may result in risk of fire,
electric shock, injury to persons or damage to property.

Do not operate the charger if it has received a sharp blow, been dropped, or otherwise damaged in any way: return to
supplier.

Do not disassemble the charger: return to supplier when service or repair is required. Incorrect re-assembly may result
in a risk of electric shock, fire or faulty operation.
WARNING
– RISK OF EXPLOSIVE GASES
WORKING IN THE VICINITY OF A HIGH POWER BATTERY IS DANGEROUS. BATTERIES MAY GENERATE
EXPLOSIVE GASES DURING NORMAL OPERATION AND CHARGING.
To reduce the risk of battery explosion, follow these instructions and those published by battery manufacturers and the
manufacturer of any equipment you intend to use in the vicinity of the battery. Review cautionary marking on these
products and any attached equipment.
PERSONAL PRECAUTIONS.

(i) Someone should be within range of your voice or close enough to come to your aid when you work near a lead acid
or high power battery.

(ii) Have plenty of fresh water and soap nearby in case battery acid contacts skin, eyes or clothing.

(iii) Wear complete eye protection and clothing protection. Avoid touching eyes whilst working near batteries.

(iv) If battery acid or chemicals contact skin or clothing, wash immediately with soap and water. If acid or chemicals
enter the eyes, immediately flood eyes with running cold water for at least 10 minutes and get immediate medical
attention.

(v) NEVER smoke or allow a spark or flame in vicinity of battery.

(vi) Be extra cautious to reduce risk of dropping a metal tool on to the battery. It may spark or short-circuit the battery or
other electrical part that may cause explosion.

(vii) Remove personal metal items such as rings, bracelets, necklaces and watches when working with batteries.
High power batteries can produce a short-circuit current high enough to weld a ring or the like to metal, causing severe
burns.

(viii) Use the charger only for charging battery types as stated on the charger. Do not use the charger for charging dry-
cell batteries that are commonly used with home appliances. These batteries may burst and cause injury to persons and
damage to property.

(ix) NEVER CHARGE A FROZEN BATTERY
PRIOR TO INSTALLATION /COMMISSIONING

Clean battery terminals. Be careful to keep corrosion from coming into contact with eyes.

For lead acid batteries, add distilled water in each cell until the battery acid reaches a level specified by the battery
manufacturer. This helps purge excessive gas from the cell. Do not overfill. For a battery without cell caps, carefully
follow manufacturer’s recharging instructions.
 Study all battery manufacturer’s specific precautions, such as removing or not removing cell caps while charging and
recommended rates of charge.

Determine the battery voltage by referring to the engine manual and ensure this matches the charger’s output voltage.
CHARGER LOCATION AND CONNECTION

Never place the charger directly above the battery being charged: battery gases will corrode and damage the charger.

When reading specific gravity or filling batteries, never allow battery acid or chemicals to drip on to the charger.

Do not operate the charger in a closed-in area or restrict ventilation in any way.

The battery charger should be connected to a grounded, metal, permanent wiring system; or an equipment –grounding
conductor should be run with circuit conductors not connected to equipment-grounding terminal on the battery charger.

Connections to the battery charger should comply with all local codes and ordinances.

Open frame SNTL models – these chargers should be installed so that they are not likely to be contacted by people.

Wiring for the AC supply input, DC charge output and DC control (e.g. alarm output) circuits must be physically
separate, e.g. using separate wire harnesses and cable gland access. For AC supply and ground connections, use
1mm²/17 AWG or larger wire conductors rated to 90°C/194°F. For DC (charger to battery) leads, use 4mm²/11 AWG or
larger wire.
For safe and correct use of the charger, follow steps below. Should you have any problems or the unit does not function as
expected, consult our troubleshooting guide at the end of these instructions.

Visually inspect unit for any signs of damage, caused by transport or storage.

Mount the charger as outlined above, paying attention to ventilation and ambient temperature.

Ensure the mains AC supply is isolated, and ensure the correct rated input voltage before connection.

Ensure the charger is earthed at the marked earth terminal/stud.
 Check batteries in accordance with the manufacturer’s guidelines.

Check that the charger is correct for battery type, number of cells and voltage.

Connect the charger to the batteries, observing correct polarity and ensuring a secure and tight connection.

Switch on the charger at the mains AC power supply.