MM2000 ISGOTT

Product catalog summary

Overview: The MM2000TM is an intelligent addressable gas detection system designed for flammable gas detection in tanker air conditioning inlets, aligning with section 24.2 of the Fifth Edition of ISGOTT (International Safety Guide for Oil Tankers and Terminals). It supports up to 32 addressable sensors and provides local indication and alarm conditions to shut down air conditioning upon detection of flammable vapors.

Specifications:

Sensor Points: 1 to 32
Power Supply: 24V dc, 110V/220V ac 50/60Hz
Inputs: Flammable, toxic (e.g., H2S), oxygen
Display: 4-line alphanumeric LCD showing sensor address, gas type, concentration, peak hold, alarm status, system fault, line fault, and line inhibit
Indicators: Twin Green LEDs for power, Twin Red LEDs for alarm, Twin Amber LEDs for fault
User Interface: Menu-driven via LCD with 6 panel-mounted membrane push buttons
Outputs: 3 alarm levels per channel, 16 user-programmable volt-free SPCO relays, common fault relay, mains fail relay
Ingress Protection: IP52
Local Alarm: Internal buzzer with mute
Cable Details: Main network uses a 4-core cable, max length < 500m
Environmental Compliance: Class Criteria
Panel Dimensions: 315mm (W) x 260mm (H) x 75mm (D)
Weight: 3.4kg
Certification: Lloyds Type Approval Certificate 04/00079, EEx d IIC T6 – zones 1 and 2

Components:

MM2000TM Controller: Compact panel suitable for small control rooms, continuous monitoring, and no moving parts
MM1000TM Flammable Gas Detector: Continuous diffusion operation, 316 stainless steel housing, dimensions 33mm x 33mm, weight 165g
Sensor Junction Box: Galvanised cast iron housing, dimensions 126mm x 86mm, weight 2kg
Sensor Cable: 4-core 1.5mm2 screened and unarmoured, marine approved

Additional Features: Type approved, low-cost installation with loop sensor cable, one-man calibration, relay contacts for shutting down A/C, and accessories like dust and spray protector, duct mount kit.

Catalog excerpts

MM2000 Air Conditioning Inlet Gas Detection System for ISGOTT 5 Guidelines MM2000TM is an intelligent addressable gas detection system designed to provide flammable gas detection in tanker air conditioning inlets to reflect the guidance in section 24.2 of the newly published ‘Fifth Edition of ISGOTT’ (International Safety Guide for Oil Tankers and Terminals). The MM2000TM system operates on a single 4-core cable having the capacity to monitor from 1 to 32 addressable sensors. The control system provides local indication of the measured parameters and alarm conditions together with relay contacts to shut down air conditioning on detection of flammable vapours in the air conditioning (A/C) inlets. Type approved Loop sensor cable for low cost installation One man calibration Compact panel for the smallest CCR No moving parts Continuous monitoring of all sensors Relay contacts for shutting down A/C

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