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).
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
(94/9/EC). They are available for Class I, Zone 0, IIC
and II 1 G EEx ia IIC T4 or Class I, Zone 0, IIA and II
1 G EEx ia IIA T4 hazardous locations.
Features and
Specifications
Input
Power:
13 to 30 VDC, 35 mA @24 VDC (Class I, Zone 0, IIC
models)
7.5 to 30 VDC, 10 mA @ < 10
VDC (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"
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: 0 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: 600 volts RMS
Max. distance from sensor to preamp:
100'
Pulse Output
Options:
All output options must be factory
installed
Open collector Vmos
transistor, maximum OFF voltage 30 VDC; maximum
ON current
TTL/CMOS (standard) fanout of 5 TTL/CMOS
loads
Temperature
Range:
Operating: -40°F to +185°F
(-40°C to +85°C)
Storage: -40°F to +302°F (-40°C to
+150°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 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
Approvals:
Intrinsically
safe to CSA (with NRTL/C) and LCIE to ATEX
(94/9/EC).
CE compliant to EMC Directive 89/336/EEC
for use in residential, commercial, light
industrial and heavy industrial
environments
Warranty:
Unconditional one (1) year warranty if
used within specifications
Physical
Dimensions:
Board diameter:
2.75"
Center mounting holes: 2" and
2.5"
Hazardous location: Class I, Zone 0, Group IIC
and Class 1, Div. 1 Group A,B,C,D
Model Number
Description
Output (Pulse Range)
Enclosure Cover Type
PMX-0001-1
for use
with VR sensor
open
collector
standard
lid
PMX-0001-2
for use
with VR sensor
0-5 Vdc
standard
lid
PRX-0002-1
for use
with RF sensor
open
collector
standard
lid
PRX-0002-2
for use
with RF sensor
0-5 Vdc
standard
lid
Hazardous location: Class 1, Zone 0
Group IIA and Class 1, Div. 1, Group
D
