Bacharach Parasense GRM2 CO2 Series, Руководство по эксплуатации и техническому обслуживанию

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Operation & Maintenance Manual
Doc Ref. MNGRM2CO2 REV. 3
1 INTRODUCTION
The Parasense GRM2 CO2 series monitors are advanced refrigerant leak detection devices utilising
infrared absorption sensors to analyse air samples.
Dependent on model, the monitor will have 4, 8, 12, or 16 individual internal SAMMs (SAMpling
Module), each having their own pump and filter. Each SAMM is connected to the area to be sampled
by semi-rigid nylon pipework, referred to as freeway. The specific area can then be further subdivided
into small regions using a manifold with multiple sampling pipes, known as spur kits (refer to the
installation guide within this manual). This multi sampling technique ensures that likely sources of
refrigerant leakage can be specifically targeted.
An additional method of leak sensing is also available. Local gas sensors can be connected via the
RS485 network terminals. Samples are gathered locally and the information relayed back to the
GRM2 CO2 via the RS485 network connection. A Parasense ATM2R cluster module is required for
each network sensor; together these are referred to as an RS485 networked SAMM. An additional
beacon/sounder can be connected to the ATM2R cluster module. The total number of network gas
sensors that can be used is dependent on the individual application. Please contact Parasense for
further information.
For both internal SAMMs and RS485 networked SAMMs, Alarms can be generated at three different
levels described as
‘Alert’, ‘Alarm’ and ‘Critical’, these alarms can be signalled to other devices using
the 16 configurable relays. The current alarm status is indicated on the 169mm (6.5
”) TFT LCD
display.
The ADC-104 is an optional terminal panel used in conjunction with the GRM2 CO2 to increase the
available number of beacon/sounders, terminal connections and integration with onsite facility
management systems. For full details of the ADC-104 please refer to the O&M Manual.