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Inerma Inertization Process Control Unit
Brand: madurinerma is an inertization process control unit that is meant to work with inertization systems where nitrogen or other inert gas is used. It is easy to install on the site, uncomplicated in use and works unattended by operators.
Its build-in automated cleaning system makes monitoring of high concentration dust atmospheres possible. The recalibration process of partial pressure oxygen sensor used for measurement is handled without supervision.
In that way precision of measurement is ensured autonomously and continually. However the biggest advantage of inerma is its capability of continuous control over the interization process. Installing two inerma units, working in master-slave mode makes uninterrupted measurement possible.
This option is especially suggested when hazardous explosive atmospheres are likely to occur when not controlled for short periods of analyzer's cleaning and recalibrating process.
In master-slave mode units work interchangeably. When one finishes its cycle and starts maintenance, the other takes over. Safety is always guaranteed.
Master-slave mode also makes a great back up in case when one of the units is out of order - up to 7 days of continuous measurement.
Features- Resistant to environment of high concentration dust (automatic cleaning with nitrogen under pressure)
- Automatic recalibration of the oxygen sensor ensures precision of measurements
- Possibility of building 2 unit system for continuous measurement and better safety
- Cooperation with third party systems
- Oxygen concentration precise measurement
- Warranty and post warranty service
- Communication with PC via RS485 interface (using madur or modbus protocol)
- Easy mounting and unmounting thanks to build in DN25 valve
- Small in size
- Possibility of adding inerma to already working inertization system
- IPS 66
- No need of operator's attendance
- Highly customizable to customer's needs
Specifications
Brand
Circuit Protection
- Short Circuit Protected
Communication
- Baud Rate: 115,200 bit/sec for Madur Protocol
- Baud Rate: 9,600 bit/sec for Modbus Protocol
- Modbus
- RS-486 2-Wire Half-Duplex
Consumption
- Sensors's Power Consumption During Measurement & in Standby Mode: 1 W (Typically)
- Sensors's Power Consumption During Measurement & in Standby Mode: 2 W, Max.
- Sensors's Power Consumption During Ventilating with Air & Nitrogen Sparging: 4 W (Typically)
- Sensors's Power Consumption During Ventilating with Air & Nitrogen Sparging: 5 W, Max.
Current
- Current Drawn During Transition: 1 A
- For ON: 500 mA - Max.
- Inrush Current: 3 A, Max.
Enclosure, Body Material
- Valve Material: Stainless Steel
Environmental Protection
- IP66
- IP67
Load Resistance
- 50 ohms for 1 V Min.
- 500 ohms - Max.
Materials of Construction
- Ball Valve Material: ANSI 316 Stainless Steel
Measuring Range
- 0 to 21 % Volume O₂
Media
- Nitrogen (N₂)
Operating Temperature
- -20° to 40° C (-4° to 104° F)
- -20° to 70° C (-4° to 158° F) - Valve Motor
Output
- Analog: 0-1 V
- Analog: 0-10 V
- Analog: 0-20 mA
- Analog: 4-20 mA
Power
- Housing Heating: 20 W, Max.
- Power Drawn During Rest: 4 W, Max.
- Power Drawn During Transition: 24 W
Pressure Range
- psi: -0.29 to 1.45 (kPa: -2 to 10, bar: -0.02 to 0.1) - Operating Conditions
- psi: 29.01 to 101.5 (kPa: 200 to 700, bar: 2 to 7) - Pneumatic Supply
Resolution
- 0.02 % Volume
Seat / Seal Material
- Seal Valve Material: PTFE
Supply Voltage
- 24 Vdc
Voltage
- Allowed Voltage Range: 0-24 V
- For High Level: > 3 V
- For Low Level: < 1 V
- For OFF: 24 V, Max.