Gasmonitor Plus is Crowcon’s flexible 19″ rack-based control system for gas detection monitors. Monitor up to 16 gas detection monitors or 32 fire zones per rack. Racks can be supplied separately or built into wall mounting or floor-standing enclosures.
A separate gas level display is provided for each gas monitor. The Gasmonitor Plus can be engineered into large systems and tailored to suit individual site requirements.
Each Gasmonitor Plus rack consists of a display module, a card frame that will accept up to sixteen input modules, an input/output module, a data logger and software. Input modules, relay modules and module membrane labels must be ordered separately.
The operating voltage of the rack is 24Vdc. 100/230Vac power supplies and backup batteries must be ordered separately.
Backup batteries are available as an option to ensure the system remains operational if mains power fails. Dedicated 24 V alarm outputs power a maximum of two audible/visual alarms per rack. Additional alarm devices can be activated using relay modules.
| Part Number | Description |
|---|---|
| GMON | 19″ Rack-Based Control System |
| Part Number | Description |
|---|---|
| S01718/3 | Universal gas detector input module |
| S01405/3 | Twin zone fire input module |
Input module membrane switches and blank channel labels must be ordered separately.
| Part Number | Description |
|---|---|
| E01762 | Universal input channel module membrane switch (blue/white) |
| E01763 | Fire module membrane switch (blue/white) |
| E01772 | Methane module membrane switch (blue/white) |
| M05732 | Blanking label (blue/white, required for unused channels) |
| Part Number | Description |
|---|---|
| E01547 | 24V 300W power supply (100–260Vac) |
| E01675 | 24V 500W power supply (100–260Vac) |
| 2171/1 | 24V 750W power supply (100–260Vac) |
| Part Number | Description |
|---|---|
| S01404 | Relay output module (eight DPCO relays per module) |
| M02186 | RFI screening plate (2 required if rack not enclosed) |
| M010006 | Motherboard RFI screening cover |
| S011793 | Inhibit module (24Vdc output per channel) |
System requires two batteries connected in series.
| Part Number | Description |
|---|---|
| E01006 | 12V 7Ah battery (lead/acid) |
| E01011 | 12V 17Ah battery (lead/acid) |
| E01007 | 12V 24Ah battery (lead/acid) |
| E01315 | 12V 38Ah battery (lead/acid) |
| E01316 | 12V 65Ah battery (lead/acid) |
Suitable for charging batteries up to 17Ah within rack systems. For larger batteries or multi-rack systems, a separate charger is required. Includes surge suppressor, charger, deep-discharge module, and connections for up to four racks.
| Part Number | Description |
|---|---|
| 00144A | Battery charger assembly |
| Specification | Details |
|---|---|
| Size | 483 x 133 x 294 mm (19.0 x 5.25 x 11.5 ins) |
| Weight | 9.5 kg (21 lbs) |
| Enclosure Material | Aluminium alloy |
| Mounting | Rack mounted (3U format). Optional wall-mounted and floor-standing cabinets available. |
| Channels | 16 per rack |
| Operating Temperature | 0°C to +50°C (32°F to +122°F) |
| Humidity | 0–95% RH, non-condensing |
| Inputs |
Gas: 2 or 3 wire 4-20mA (sink or source), or mV
bridge Fire: Smoke & heat detectors, manual call-points Maximum 32 loops per rack (16 twin-zone fire modules) |
| Outputs |
Analogue: 16 x 4-20mA, max. load 960 Ohms or
1-5V, min. load 100 Ohms External Audible/Visual Alarm Drive: Powered 24V DC, max. load up to 200mA for each alarm level |
| Relays | Up to 84 DPCO contacts rated 5A @ 250V AC, non-inductive load |
| Relay Assignment |
Common Alarm 1, Alarm 2, Alarm 3, Fault Per Channel: Gas Alarms 1, 2 & 3, Fire & Fault Voting: Up to 16, configurable |
| Relay Modes | Energised / De-energised, Latched / Non-latched, Time-delayed, Pulsed |
| Digital Communications | Compatible with PanelsPro or SetGMon only |
| Event Logging | Built-in datalogger. Data available via communication links with PanelsPro or SetGMon only |
| Panel Indication |
Channel Number: 4 lines x 20 characters Gas Reading: Main LCD plus green LED bar-graph on channel card Measurement Units: %LEL, ppm, %Vol, Fire System Fault (Integrity Watchdog): Yellow LED |
| Alarm Indication |
3 Individual Alarms & 3 Common Alarms (Red LEDs) Individual & Common Fault (Yellow LEDs) Individual Inhibit (Yellow LED) |
| Power Supply |
AC Mains: 100–260V AC, 50/60Hz external DC: 27.6V Battery Backup: External |
| Approvals |
Low Voltage Directive – EN61010-1 EMC Directive – EN50082-1, EN50081-1, EN50270, EN61000-6-4 ATEX: Conforms to EN60079-25 in configuration with Zener Barrier Baseefa 05Y0090/1 |
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