AL 175NTMonitoring & Control Unit

The Eltek range of monitoring and control units has been specifically developedto provide indication and management for DC standby power systems used intelecommunications and industrial applications. A comprehensive range offeatures is achieved through the utilisation of microprocessor technology.

AL 175NT is a plug in monitoring and control unit which is used in Eltek‘s small-and medium- range power systems. This range includes MPSU 200, MPSU 4000,MPSU 5000, MPSU 6000, PRS 700 and Flatpack.

AL 175NT Monitoring & Control Unit

AL 175NT offers features like

• Front panel LCD and keypad for on-site service (local access)• RS-232 interface for PC connection or remote monitoring/control via

modem or SNMP• 6 Configurable alarm relay outputs for traditional remote monitoring• Battery monitoring and testing without site attendance• Temperature Compensated Charge Voltage for increased battery

lifetime• Hot Plug-In• Modem Call-back functionality• Password protected operator access levels• Alarm/event log with time and date (up to 256 events)

MPSU 4000 and PRS 700: two of Eltek’sPower Systems utilizing the AL 175NT

AL 175 NTMonitoring & ControlUnit

AL 175NT can be accessed from a remote location intwo ways:

From a PC running WinPowerWith the Windows-based “WinPower”communication program installed on a remotecomputer, the system can be monitored andcontrolled via modems. The modem callbackfunctionality can be used to minimize the traffic onthe public telephone network.

From an NMS via Ethernet (SNMP)With an external SNMP agent connected toAL 175NT, the system can be monitored andcontrolled from a Network Management Systemthrough Ethernet on Simple Network ManagementProtocol (SNMP).

Using alarm relays (voltage free contacts)6 internal failsafe alarm relays provide voltage freecontacts that can be connected to equipment usedfor traditional alarm monitoring.

From a PC running WinPowerWinPower can also communicate with AL 175NTthrough an RS-232 C serial cable.

Using front keypads and displayAL 175NT uses menu driven software to provide auser-friendly interface for local operation via a keypadand an LCD.In normal operation, the front LCD will display theoutput voltage, battery current, rectifier current andload current.

If any alarm is activated, a red LED is lit in the frontpanel, the alarm text appears in the LCD and thecorresponding alarm relay is activated.

• Output Voltage Measurement• Load Current Measurement (calculated)• Battery Current Measurement• Rectifier Current Measurement• Battery Temperature Measurement (optional)• Load/Battery Disconnect• Alarm level settings• Battery Testing (interval and manual)• Battery Test Information (2 latest tests)• Setup of battery Data• Alarm Log• Parameter Calibration• Clock and date adjustment• Site Text/ID• Test of relay outputs• Voltage Level Programming• Battery Boost Charging• Battery Cable Voltage Drop Compensation• Temperature Compensated Charging• Modem Callback

• High Battery voltage• Low Battery voltage• Load/Battery Disconnect• Battery Fuse Alarm• Load Fuse Alarm• High Battery temp. 1 (level 1)• High Battery temp. 2 (level 2)• Battery Pre Alarm (75% < capacity < 85%)• Battery Failure (capacity < 75%)• Mains failure• Rectifier failure• Symmetry Failure• Battery Test (ongoing test)

Input Voltage: 242072.232: 20-60 VDC242072.236: 40-80 VDC

Dimensions: 70.7 (14TE) x 133x 169mm WxHxD(2.8 x 0.25 x 6.7”)

Weight: 1kg (2.2lbs.)

ORDERING INFORMATION

REMOTE MONITORING/CONTROL

LOCAL MONITORING/CONTROLING

AVAILABLE ALARMS

SPECIFICATIONS

FEATURES

Location Company Telephone FaxNorway Eltek Energy AS +47 32 20 32 00 +47 32 20 32 10

Americas Power Conversion Products,LLC +1 815 459 9100 +1 815 459 9118Asia/Pacific Eltek Energy Pte Ltd. +65 6 7732326 +65 6 7753602China Eltek Energy Ltd. +852 28982689 +852 28983189Europe Eltek Energy UK Ltd. +44 1442 219355 +44 1442 45894Middle East Eltek Middle East +971 4 887 1176 +971 4 887 1175

www.eltekenergy.com

Part no. Description

242072.232 AL 175NT 24V/48V systems

242072.236 AL 175NT 60V systems