Midas-M Transmitter

The Midas-M is a Fixed Extractive Single Point with 4-in-1 Multi Gas Detector to detect more than 30 gases - precisely, easily, quickly, that draws a sample locally or from a remote point to a sensor cartridge that is located inside the detector's chassis. A side range of toxic, flammable and oxygen gas sensor cartridges are available that enable detection of gases used or generated in the Semiconductor and other manufacturing industries.
  • Over *33 gases available with 2 year warranty : 17 gases available at launch
  • 4-in-1 multi smart sensor cartridge with on board * ‘e-calibration’ certificate
  • Modular design for easy to use and service (front, pump, sensor cartridge, main and base)
  • 3 built in relays (Form C) for Alarm 1, 2 and Fault
  • Power over Ethernet (PoE) communication
  • Keypad interface and remote web browser interface
  • Factory-calibrated sensors to reduce need for frequent gas testing
  • Isolated 0-21 mA analog output with fault and event reporting
  • Modbus/TCP Ethernet for easy connectivity to all control and alarm systems ports for control connectivity and service interaction
  • Robust extractive pump system (2 year lifetime) sampling up to 100 feet
  • Semiconductor processing
  • Light industrial manufacturing
  • University laboratories
  • Aerospace
  • Wastewater
Transmitter Dimensions
Size (unit with Cartridge)136 mm (H) x 83 mm (W) x 152 mm (D) (5.35 in x 3.27in x 5.98 in)
Weight - Transmitter1.3 kg (2.87 lb)
Weight - Cartridge0.17 kg ~ 0.22 kg (0.38 lb ~ 0.49 lb) dependent on sensor type
Optional Relay Direction
Size137 mm (H) x 84 mm (W) x 41 mm (D) (5.39 in x 3.31 in x 1.61 in)
Weight0.31 kg (0.68 lb)
Power Requirements
Operating Voltage24 VDC Nominal, -15 to 10% (20.4 VDC to 26.4 VDC)
Operating Voltage with Power Over Ethernet (PoE)48 VDC PoE (IEEE 802.3af compliant)
Power Consumption
Transmitter unit (normal condition)Typ. 5 W
Transmitter unit (full load condition)≤ 11.45 W
Transmitter with Optional Relay≤ 12.9 W
VisualAlarm, Power, Fault LEDs, and LCD with all the gas readings and events
LEDs: Power (Green), Alarm 1 (Red), Alarm 2 (Red), Fault (Yellow)
Relays in Transmitter(3) Relays for Alarm 1, Alarm 2 and Fault rated 1.0 A @ 30 Vdc or 0.5 A @ 125 Vac
Max 10 uA @ 10 mV minimum, configurable as normally open or closed, latched or unlatched
Relays in Optional Relay8 relays for Alarm 1 and Alarm 2 of each channel and a relay for common fault rated 1.0 A @ 30 Vdc or 0.5 A @ 125 Vac
Max 10 uA @ 10 mV minimum, configurable as normally open or closed, latched or unlatched
Analog3 wire sink, 3 wire source, or 4 wire fully isolated; 0 mA to 21 mA for each channel
Digital CommunicationsModbus/TCP Ethernet/Power over Ethernet (PoE)
Certifications and Specifications
CE marked Meets EN 50270:2015+AC:2016 and EN 61000-6-4:2007+A1 ETL approved UL 61010-1:2012 Ed.3 IEEE 802.3af-2003
Refer to individual sensor datasheets
Transport System
Flow Rate600 mL/min
Transport Time2 seconds to 25 seconds maximum
Sample Line Tubing3.18 mm ID x 6.35 mm OD (0.125 in x 0.25 in)
Tubing LengthUp to 30 m (100 ft) with FEP tubing
Exhaust Line Tubing4.76 mm ID x 6.35 mm OD (0.188 in x 0.25 in)
Exhaust LengthUp to 30 m (100 ft)
Ambient PortIn line air filter required
Operating Temperature
0°C to 40°C (32°F to 104°F)
Wiring Requirement
4-20 mA2 wire, 14 AWG maximum
DigitalCAT5 Cable or equivalent: RJ45 connector
Gas Concentration Display and Interface
Instrument4-digit alphanumeric display with separate units, concentration bar graph for each channel and other icon driven indicators
4 button interface keypad
RemoteInternet browser access via Ethernet
Installation Details
MountingWall mounted using pre-drilled holes on chassis. Options for DIN rail
MaterialCover: Plastic (Polycarbonate)
Chassis/Mounting bracket: Zinc plated steel
Red frame: Liquid coated aluminum
Transmitter Unit1 year
Sensor Cartridge2 years
Gas NameChemical FormulaRangeSensor Part Number
Hydrogen ChlorideHCl0 - 8 ppmMMS-E2
Boron TrichlorideBCl30 - 8 ppmMMS-E2
DichlorosilaneSiH2Cl20 - 8 ppmMMS-E2
Hydrogen BromideHBr0 - 8 ppmMMS-E2
SilaneSiH40 - 20 ppmMMS-X2
DisilaneSi2H60 - 20 ppmMMS-X2
HydrogenH20 - 1000 ppmMMS-G2
ChlorineCl20 - 2 ppmMMS-L2
AmmoniaNH30 - 100 ppmMMS-A2
Carbon MonoxideCO0 - 100 ppmMMS-C2
Carbon Monoxide (Low Cross Sensitivity)CO (Low Cross Sensitivity)0 - 100 ppmMMS-C3
PhosphinePH30 - 1200 ppbMMS-R2
PhosphinePH30 - 1200 ppbMMS-R3
OzoneO30 - 0.4 ppmMMS-U2
OxygenO20 - 25% v/vMMS-D2
Sulfur DioxideSO20 - 8 ppmMMS-S2
Hydrogen FluorideHF0 - 12 ppmMMS-Z2
Boron TrifluorideBF30 - 8 ppmMMS-Z2
Tungsten HexafluorideWF60 - 12 ppmMMS-Z2
MethaneCH40 - 100% LELMMS-F3
MethaneCH40 - 5% vol IRMMS-I2
BromineBr20 - 0.4 ppmMMS-Q2
Carbon DioxideCO20 - 2% volMMS-TR
Hydrogen CyanideHCN0 - 20 ppmMMS-Y2
Nitric OxideNO0 - 100 ppmMMS-V2