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PT900-6XP Gas Monitor
Features
- Microprocessor based Addressable modules
- Discrete 4-20mA output
- Three (3) Programmable alarm relays
- RS-485 MODBUS RTU Serial Communication
- PLC and SCADA Compatibility
- Alarm Status LED Indicators
- External Explosion proof Alarm Reset switch
Description
Model PT900-6XP is a microprocessor based modular controller suitable for use in Hazardous locations. Maximum of six (6) PT900 Series toxic or combustible gas control module can be interfaced with Pem-Tech’s gas sensors. The control modules provide digital display, discrete 4-20mA analog output and programmable alarm relay contacts.
The low power RISC based microprocessor allows all the alarm levels and control module address programmed via switches on the front panel. The bright LED display indicates the gas concentration. Also features amber and red LED indicators for alarm status. One of the safety features is a flashing digital display when the control module is in alarm bypass mode. The flashing display is an indication to the personnel in the control room about the alarm bypass status.
Each control module has RS-485 MODBUS RTU serial communication compatible with PLC’s, SCADA, and DCS systems. The module provides complete status like current gas concentration, sensor calibration and current alarm status. The alarm levels can also be accessed and programmed via MODBUS.
Specifications
- Electrical Classification
- Explosion Proof, suitable for use in Hazardous Locations
- Front Panel Indicators
- 2 Bright LED digital display
- 4 each Alarm LED Indicators
- Flashing digital display if module in alarm bypass mode.
- Test & Safety Features
- Displays programmed alarm levels and alarm with flashing alarm LED indicators at unit power up to check the integrity of display and LED indicators
- Operating Temperature
- -40°F to +158°F (-40°C to +70°C)
- Operating Humidity
- 5% to 100% RH, non-condensing
- Mechanical Specifications
- Height: 22 inches (158 mm)
- Width: 17 inches (432 mm)
- Depth: 11 inches (279 mm)
- Weight 110 Lbs. (50 Kg)
- Approvals
- Enclosure: CSA & UL
- Control Modules: ABS Type approved
- ABS Rules: 1-1-4/3.7, 4-8-3/tbl 2 4-8-3/1.7
- Input Power
- 14-28 VDC. 24 VDC nominal
- Power Consumption
- Per channel 160mA @ 24 VDC including gas sensor and control module
- Alarm Relays
- Low, High & High-High alarm relays.
- Fully programmable zero to full scale range. Latching or non-latching
- Relay Ratings
- SPDT Form “C” type Relay contacts
- 5 Amps @ 250 VAC or 30 VDC
- Auxiliary Alarm Relay Assembly (Optional)
- Four (4) each alarm relay contacts
- Each relay rated 10Amps @ 125 VAC /
28 VDC
- Analog Output
- Discrete 4-20mA (300 Ohms max. load) 2.0 mA - When sensor in Calibration mode
- < 1.0 mA - Sensor malfunction
- Peripheral & Interface
- RS-485 MODBUS RTU Compatible with PLC’s, SCADA and DCS systems.
- Annunciator model PT750 for remote
readout
If you would like more information on PT900-6XP Gas Monitor, please contact us today. Pem-tech carries this monitor, along with other single channel controllers.