Intrinsically Safe Pre-Amplifiers
Certified to ATEX, IECEx, and CSA
Motion Sensors (MSI) PMX (variable reluctance) and PRX (RF) intrinsically safe preamplifiers offer features similar to our PA1001A preamplifiers / signal conditioners and can be used in hazardous environments with intrinsically safe Variable Reluctance VR or RF sensors (e.g., PC45-X or RF10-X, respectively).
These sensors are certified intrinsically safe to:
Ex ia IIC: Class I, Zone 0: Class I, Groups A, B, C, D; Class II, Groups E, F, G; Class III
Ex ia IIA: Class I, Zone 0: Class I, Group D; Class II, Groups E, F, G; Class III
Product Specifications
Unlike our PA1001A preamplifiers, pulse outputs are factory installed and must be indicated when ordering. These preamplifiers are certified to CSA (with NRTL/C) and LCIE to ATEX (2014/34/EU) and IECEx.
CSA Electronics Certification
ATEX Electronics Certification
IECEx Certificate of Conformity
EC Declaration of Conformity and Installation Instructions
Input Power
- 13 to 30 VDC, 35 mA @ 24VDC (Class I, Zone 0, IIC models)
- 7.5 to 30 VDC, 10 mA @ < 10VDC (Class I, Zone 0, IIA models)
- Reverse polarity protected
RF Sensor Input
- Modulation carrier frequency: 20 KHz
- Input frequency: 2 Hz to 5 KHz, adjustable trigger level
- Carrier adjustment: to allow precise tuning of carrier signal to physical environment (e.g., air gap, wall thickness)
- Max. air gap: 0.160" (dependent on target geometry and construction)
- Preferred coil inductance: 1.0 mH +/- 10%
- Max. distance from sensor to preamp: 100'
VR Sensor Input
- Input protected, RF and band pass filtered
- Input frequency: 10 Hz to 10 KHz, adjustable trigger level
- Trigger sensitivity: 10 mV RMS min. (note: at 10 mV frequency range 10 Hz to 3 KHz)
- Input impedance: 40K ohms (nominal)
- Max. input signal: 60 volts RMS
- Max. distance from sensor to preamp: 100'
Pulse Output Options
- All output options must be factory installed
- Open Collector
- TTL/CMOS (standard) fanout of 5 TTL/CMOS loads
Interconnection Options
- Three (3) pin MIL-C-5015 type connector with gold plated pins; mates with MS3106-10SL-3S; other connector types upon request.
- Pigtail with wires or cables.
- NPT threaded body with wire or cable pigtail for explosion proof environments.
Physical Dimensions
- Board diameter: 2.75"
- Center mounting holes: 2" and 2.5"
Ambient Temperature
- CSA Certified Group IIC:
- Temperature Code T2: -40°C to 125°C
- Temperature Code T4: -40°C to 51°C
- CSA Certified Group IIA:
- Temperature Code T2: -40°C to 100°C
- Temperature Code T4: -40°C to 51°C
- ATEX and IECEx Certified Group IIC and IIA:
- Temperature Code T2: -40°C to 125°C
- Temperature Code T4: -40°C to 51°C
Enclosures
- Unit is intended for mounting in a conduit box. Enclosure is not required (unless using in Class II and III locations in which must be enclosed in an approved Class II/III enclosure) but recommended to protect unit from moisture, dirt, etc.
- Optional explosion proof box available upon request
Entity Parameters
- Group IIC
To Barrier:
Vmax/Ui = 30 VDC, Imax/Ii = 200 mA
Pi = 0.75 W; Ci/Ci = 0.0uF, Li/Li = 0.50 mH
To Sensor:
Voc/Uo = 5.9 VDC, Isc/Io = 64 mA
Ca/Co = 1 uF, La/Li = 3.5 mH - Group IIA
To Barrier:
Vmax/Ui = 30 VDC, Imax/Ii = 190 mA Pi = 2.55 W; Ci/Ci = 0.0uF, Li/Li = 0.50 mH
To Sensor:
Voc/Uo = 10.5 VDC, Isc/Io = 190 mA
Ca/Co = 4 uF, La/Li = 1.5 mH
Approvals
- Intrinsically safe to CSA (with NRTL/C) for:
Ex ia IIC: Class I, Zone 0: Class I, Groups A, B, C, D; Class II, Groups E, F, G; Class III
Ex ia IIA: Class I, Zone 0: Class I, Group D; Class II, Groups E, F, G; Class III - LCIE to ATEX (2014/34/EU) for Ex II 1 G; Ex ia IIC T4; Ex ia IIC T2; Ex ia IIA T4; Ex ia IIA T2
- IECEx for Ex ia IIC T4; Ex ia IIC T2; Ex ia IIA T4; Ex ia IIA T2
- CE compliant to EMC Directive 2004/108/EC for use in residential, commercial, light industrial and heavy industrial environments
Warranty
- Unconditional one (1) year warranty if used within specifications
ATEX & IECEx Certified: Custom & Standard Speed Sensors for Intrinsically Safe applications (also approved by CSA w/NRTL/C)
Motion Sensors, Inc.
786 Pitts Chapel Rd
Elizabeth City, NC 27909
786 Pitts Chapel Rd
Elizabeth City, NC 27909