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MEDACS2200 Signal Conditioner
Brand: Status InstrumentsThe MEDACS (2200) intelligent signal conditioner consists of a family of DIN rail modules, each one having a high degree of functionality and configurability via a RS485 MODBUS serial communications interface or through push buttons on the single channel version.
They are suitable for RTD, Thermocouple, Voltage, Current and Frequency signals and provide an isolated (4 to 20) mA re-transmission signal, 2 changeover trip relays or 4 normally open relays or various combinations.
For high density systems, dual channel versions are available or for systems that require more local input, single channel versions with an in-built keypad and digital display are available where functions can be accessed via the front panel keys.
Each unit comes complete with a RS485 serial communications port which enables the devices to be integrated into a complete process control system.
Unit wiring is simplified and speeded up by using the integral 'bus jumper' system provided with each unit which removes the need for complicated and expensive back plane wiring.
Specifications
Brand
Accuracy
- Cold Junction Error: ± 0.5° C
- Cold Junction Tracking: 0.05° C/°C
- Current Input - Base Accuracy: 0.05 % of Full Scale ± 0.05 % of Reading
- Current Re-Transmission Outputs: 0.07 % or 5 µA, whichever is greater
- Frequency Inputs: 0.003 % of Full Scale
- RTD - Basic Accuracy: 0.1° C (0.18° F) ± 0.05 % of Reading
- Thermocouple - ± 0.04 % of Full Scale ± 0.04 % of Reading or ± 0.5° C (0.9° F) whichever is greater
- Voltage Input - Range: 0.04 % of Full Scale ± 0.04 % of Reading
Alarm
- Deviation
- High
- Low
- Off: Alarm Function Inactive
- Test
Approvals & Certifications
- EMC Emissions: BS EN 61326, Immunity: BS EN 61326
Communication
- Baud Rate: 19.2, 9.6, 1.2 Kbps
- Modbus
- RS-485
Current
- Excitation Current: 1 mA
Delay Time
- Programmable (Alarm Must be Continuously Present for This Period in Order to be Recognised)
Display
- -1999 to 9999
Electrical Contacts
- Contacts are normally closed i.e. the contact is closed at power off & when operating in an alarm condition. The contact opens in the absence of an alarm condition. The active function can be reversed in software.
Filter
- Adaptive
- Programmable
Frequency
- 0.1 Hz to 20 kHz
Humidity
- 10 to 90 % Relative Humidity
Hysteresis
- 0 to 100 % (Programmable)
Input
- ± 0.1 V
- ± 1 V
- ± 10 mA
- ± 10 V
- ± 100 mV
- ± 20 mA
- ± 5 V
- 1-5 V
- 4-20 mA
Input Impedance
- Current Input: 20 ohms
- Voltage Input: 1 Megaohm
Isolation
- Breakdown: 1 kV I/P~O / P~PSU
Load
- Maximum
Mounting
- DIN Rail
Operating Temperature
- -30° to 60° C (-22° to 140° F)
Operating Temperature - Sensor
- -200° to 850° C (-328° to 1,562° F)
Operating Time
- < 5 milliseconds
Output
- 4-20 mA
- Maximum
Power
- 19 V
Power Requirement
- 24 Vdc ± 10 % at 200 mA
Power Supply
- Maximum
Relay Output
- AC - Max.
- DC - Max.
Resistance
- Lead Resistance Effect: 0.002° C/ohms
- Maximum
- Relay Outputs - Contact Resistance: < 100 milliohms
Response Time
- 300 milliseconds
- Start-Up Delay: Programmable
RTD Type
- Ni120
- Pt100
Sensor, Probe Connection
- 2-Wire
- 4-Wire
Sensor, Probe Type
- B Thermocouple
- E Thermocouple
- J Thermocouple
- K Thermocouple
- L Thermocouple
- N Thermocouple
- R Thermocouple
- S Thermocouple
- T Thermocouple
Stability
- Temperature Stability: 5 µA/°C
Storage Temperature
- -50° to 85° C (-58° to 185° F)
Temperature Range
- -1,999° to 9,999° C (-3,566.2° to 5,537.2° F)
- Cold Junction Range: -20° to 60° C (-4° to 140° F)
Thermal Drift
- RTD - Span: 0.01 %/°C
- RTD - Zero: ± 0.004 ohms/°C
- Thermocouple - Span/Voltage Input - Thermal Drift/Current Input: 0.02 %/°C
- Thermocouple - Zero: 4 µV/°C