Computronic Controls Sentinel 150P User Manual

ci0050

issue 5, 2014-08-26

Sentinel 150P series

Programmable, automatic switch mode battery chargers
Installation, Operation and Maintenance

This Manual Refers to the Following Models

Open

frame

models

SNTL150P1205CD
SNTL150P2405CD
SNTL150P1205CDA
SNTL150P2405CDA

For safe and correct use of these chargers, read and save the safety
information that precedes the installation and operation instructions.

This guide contains 8 pages (including this one). If any pages are missing,
contact the battery charger supplier or manufacturer for replacement
documentation.

In order to consistently bring you the highest quality, full featured products, we reserve the right to change our specifications and designs at any time.

Computronic Controls products and the Computronic Controls logo are registered and/or common law trademarks of Enovation Controls LLC.

This document, including textual matter and illustrations, is copyright protected by Enovation Controls Ltd., with all rights reserved. © 201 4 Enovation Controls Ltd.

41 – 46 Railway Terrace, Nechells,
Birmingham, B7 5NG, United Kingdom

Web: www.computroniccontrols.com

For sales & support, contact:

ENOVATION CONTROLS LTD.

Church Road, Laverstock,
Salisbury, SP1 1QZ, United Kingdom
Phone: [phone]
Fax: [phone]
E-mail: [e-mail]
Web: www.computroniccontrols.com
www.fwmurphy.eu/computronic

ENOVATION CONTROLS

5311 S 122nd East Avenue,
Tulsa, OK 74146, USA

Phone: [phone]
Fax: [phone]
E-mail: [e-mail]
Web: www.fwmurphy.com

Sentinel 150P installation, operation & maintenance

ci0050 p2/8 issue 5 2014-08-26

Important Safety Information – Read and Save These Instructions

This manual contains important safety and operating instructions for all SNTL150P 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 or injury to persons.

 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 LEAD ACID BATTERY IS DANGEROUS. BATTERIES GENERATE EXPLOSIVE
GASES DURING NORMAL BATTERY OPERATION.

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

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 contacts skin or clothing, wash immediately with soap and water. If acid enters 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 a 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) DANGER OF EXPLOSION! NEVER CHARGE A FROZEN BATTERY

PRIOR TO INSTALLATION / COMMISSIONING

 Clean battery terminals. Be careful to keep corrosion from coming into contact with eyes.
 Add distilled water in each cell until the battery acid reaches a level specified by 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 voltage of battery by referring to engine manual and ensure this matches the charger’s output voltage.

CHARGER LOCATION AND CONNECTION

 DANGER OF EXPLOSION! Never place the charger directly above battery being charged: gases from the battery will

corrode and damage the charger.

 Never allow battery acid to drip on to the charger when reading specific gravity or filling battery.
 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 input and ground leads, use 1mm²/17
AWG or larger wire conductors rated to 90°C/194°F. For DC (charger to battery) leads, use 2.5mm²/13 AWG or larger.

For safe and correct use of the charger, follow the following steps. 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 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 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.

Sentinel 150P installation, operation & maintenance

ci0050 p3/8 issue 5 2014-08-26

BEFORE BEGINNING INSTALLATION OF THIS PRODUCT

Disconnect all electrical power to the charger
Make sure the charger cannot operate during installation
Follow all safety warnings of the battery manufacturer
Read and follow all installation instructions

W A R NING

Specifications

power supply:

SNTL150P

1205CD(A)

SNTL150P
2405CD(A)

operating voltage range:
operating frequency

95 – 265 V AC

47 – 63 Hz

DC charge output:

nominal voltage

12

24

float / boost voltages

see DC output calibration table

current limit

5

5

voltage ripple

< 1%

line regulation

< 2%

load regulation

< 2%

input/output (SNTL150P...A models only):

input (x1)

digital (switch) input,

close to –DC to activate,

programmable control function

output (x1)

relay switched +DC,

1A max @ 30 VDC,

programmable alarm function

general:

operating temperature

–30 to +60 °C / –22 to +140 °F

storage temperature

–40 to +60 °C / –40 to +140 °F

humidity

20% to 90% RH

dimensions

see Dimensions & Assembly

weights

see Dimensions & Assembly

electrical safety

2006/95/EC (EN 60065)

electromagnetic compatibility

2004/108/EC

(EN 61000-6-2, EN 61000-6-4)

DC output calibration

Standard calibrations / battery types

float volts

(V DC)

boost volts

(V DC)

12V

Vented lead acid (6 cells) *

13.5

14.1

Calcium-Calcium (6 cells)

13.8

15.6

Lead acid antimony (6 cells)

13.5

14.7

VRLA, AGM (6 cells)

13.5

14.4

VRLA, Gel (6 cells)

13.5

13.8

NiCd (10 cells)

14.1

14.5

Power supply

12.0

n/a

24V

Vented Lead acid (12 cells) *

27.0

28.2

Calcium-Calcium (12 cells)

27.6

31.2

Lead acid antimony (12 cells)

27.0

29.4

VRLA, AGM (12 cells)

27.0

28.8

VRLA, Gel (12 cells)

27.0

27.6

NiCd (18 cells)

25.6

26.1

NiCd (20 cells)

28.2

29.0

Power supply

24.0

n/a

* Unless specified otherwise, factory default calibrations are for

vented lead acid

Note: Calibration figures at 20 deg C. Output voltage will vary if
temperature compensation is enabled – see Electrical Connection &
Configuration section.

General Information

Please read the following before installing. A visual inspection of this product for damage during shipping is
recommended before installation. It is your responsibility to ensure that qualified mechanical and electrical
technicians install this product. If in doubt, please contact your local Computronic representative.

Sentinel 150P battery chargers provide new levels of DC
power control, monitoring and protection for engine
starting and standby battery applications. Computronic
advanced charger features included as standard:

 Switch mode charging technology: high power

efficiency and low heat dissipation, plus wide supply
voltage tolerance, in a compact and lightweight package.

 Multistage charging: float, bulk, absorption and

AutoBoost stages ensure no compromise between rapid
charge recovery and long term battery capacity and life.

 Low output ripple: <1% ripple, beneficial for vented

lead acid & NiCd cells, essential for VRLA, and
configurable for use as a stand-alone DC power supply.

 AutoBoost: triggered automatically on low battery

voltage levels, or by a programmable interval timer,
AutoBoost temporarily increases the charge voltage to
give battery cell charge equalization, without overcharge
and gassing. At the end of the AutoBoost cycle,
Sentinel automatically returns to float mode charging.
AutoBoost maximizes battery power, capacity and
service life.

On SNTL150P..CDA models, a programmable input can
be configured to activate AutoBoost, regardless of
battery voltage. The input is typically triggered using an
operator-initiated panel push-switch.

 Temperature compensation: ensures batteries are

charged at the optimal voltage, which varies
significantly with ambient temperature. Sentinel can
measure temperature with a battery mounted sensor,
and adjust output voltage to prevent under or over
charging.

 PC software tool: allows flexible, custom

configurations, plus real time monitoring and
diagnostics. See page 6 for details of Sentinel to PC
hardware connection, or separate document ci0052 for
information on software installation, operation and
program options.

All Sentinel 150P chargers are available as an open­frame module (with protective cover) for surface mounting
in an enclosed panel. Electrical connection of the AC
supply, battery and control circuits is via screw terminal
blocks.

Model options

Model codes with suffix 'A' (SNTL150P.... CDA)

additionally include an input for charger control and an
output for remote signalling of alarm conditions.

Both input and output functions are programmable using
the SNTL150P-PCSUITE software tool. See Configuration
section for a list of programmable input and output
functions.