Ampcontrol Gasguard 2 - GG2 Communications Overview; Overview; GG2 Detector Types

Ampcontrol Pty Ltd – ABN 28 000 915 542
GG2 COMMUNICATIONS USER MANUAL
GG2B032 Version 1 – JULY/2020
Uncontrolled Copy - Refer to Ampcontrol Website for Latest Version
Page 8 of 22
APPROVED FOR EXTERNAL DISTRIBUTION
– PROPERTY OF AMPCONTROL PTY LTD
– NOT TO
BE REPRODUCED IN PART
3 GG2 COMMUNICATIONS
3.1 Overview
The GG2 Display Module is an intrinsically safe apparatus for the purpose of displaying and transmitting
sensor data and system information. The GG2 Display consists of a certified GG2 Display Module and
associated wiring installed within an IP66 rated stainless steel enclosure.
The GG2 Display is available in three variants, a glanded display supporting iMAC/RS485
communication and two pluggable versions supporting 4-20mA+iMAC and 4-20mA+RS485
communication.
This document details the Modus and iMAC communication protocols. Refer to the following sections
 Modbus Communication – Section 5.
 iMAC Communication – Section 4.
3.2 GG2 Detector Types
The following table outlines some of the common part numbers. For more information on the GG2 range
of products, refer to GG2B026 GG2 Monitoring Solution Technical Datasheet.
Table 1: GG2 Detector Type Table
Gas
Type
Detector
Technology
Measurement Range
Ampcontrol Part
Numbers
CH
4
Catalytic
0-5% v/v
177871
CH
4
IR
0-5% v/v
177870
CH
4
IR
0-100% v/v
190998
CO
2
IR
0-2% v/v
180734
CO
2
IR
0-5% v/v
180733
CO
Electrochemical
0-50ppm
177873
CO
Electrochemical
0-100ppm
177874
O
2
Electrochemical
0-25% v/v
177872
H
2
S
Electrochemical
0-50ppm
178228
H
2
S
Electrochemical
0-100ppm
193071
Figure 1: GG2 Example System (iMAC Communication)
iMAC Fieldbus