User Manual PolyGard
®
UPS
Seite
2
PolyGard is a registered trademark of MSR
GAUSV_E_0812
Phone.: 0049(0)8531/9004-0
Fax: 0049(0)8531/9004-54
Specification subject to change without notice
MSR-Electronic GmbH, Würdinger Str. 27, D 94060 Pocking
www.msr-electronic.de
Made in Germany
1 Uninterrupted Power Supply UPS
1.1
Intended Use
The intended sites within the ambient conditions as specified in the Technical Data are all areas being
directly connected to the public low voltage supply, e.g. residential, commercial and industrial ranges as well
as small enterprises (according to EN50 082).
The PolyGard
®
UPS must not be used in potentially explosive atmospheres.
The UPS may only be used in connection with the PolyGard gas controller systems MGC-04 and DGC-05.
1.2
Description
Battery powered, uninterrupted supply of the DGC-05/ MGC-04 gas controller systems with its associated
transmitters when power is lost.
A mains monitoring relay, 1K1, is integrated in the Gas Controller. In case of power failure the digital input 1 of the
gas controller is activated. Alarms are inherently set depending on the configuration.
The charging of the maintenance-free lead batteries is effected via the power supply of the DGC-05/ MGC-04
controller. The built-in deep discharge protection switches off at 80% (19.2 V) of the nominal voltage.
According to the current regulations for gas detection systems, the uninterrupted supply of gas controller and gas
transmitters is compulsory for at least an hour when power is lost. Two UPS with 2.0 Ah and 7.2 Ah are available
as standards.
Depending on the actual load there is a residual current (mA) for the supply of warning devices.
The following table shows the "residual current" in dependence of the load and battery capacity:
Supplying other equipment of other devices via the UPS of the gas controller in not allowed.
1.3
Mounting/ Installation
The housing is fixed to the wall at the 4 marked mounting points. Ceiling installation is not possible. Afterwards
please put the separately delivered batteries into the housing. The 2.0 Ah batteries are placed one behind the
other, the two 7.2 Ah batteries side by side. See fig. 01.
The UPS is connected to the DGC/MGC via a NYM 3x 1.5 mm
2
cable according the connection diagram.
The wiring of the two batteries is done according to the connection diagram fig. 02 with the included/ prepared
wires. Please pay special attention to the polarity and series connection of the batteries.
Number of
max.
PolyGard
Transmitters
UPS
2.0 Ah
USV
7.2 Ah
Max. current for supply of
external devices (mA)
16
600
3000
32
2.0 Ah UPS
not allowed
2400
48
1700
64
1000
80
300
98
0
