Control Products NBB2-V3-E0 User Manual
Moniteur
Inductive Sensors
Moniteur VPTs are available with a wide variety of
industry proven inductive sensors for today's
advanced process PLCs. Whether your process
control system requires PNP, NPN, or NAMUR
Intrinsically Safe rated sensors, Moniteur can supply
the preferred position transmitter. Sensors available
are shown in the table below.
Note: When specifying these sensors, be sure to
determine from the end user whether their I/O card is
compatible with the sensor specifications.
Principle of Operation
> Inductive sensors are "solid state" (without moving parts) and are the most reliable of sensing
methods, with a MTBF over 20 million cycles. Inductive Sensors have three parts of operation - the
oscillator, triggering circuit and switching amplifier. The oscillator generates a high-frequency
electromagnetic field in the sensor's target area. When a ferrous metal target enters the
electromagnetic field (target area), eddy currents created in the target by the oscillator increase the
load on the oscillator. At a specific load, the trigger circuit senses the reduction in oscillation and
signals the switching amplifier to change the signal. Inductive Sensors consume electric power to
operate, and must have approval to be used in hazardous areas (see table below).
> NAMUR inductive sensors operate without the amplifier circuitry in the sensor, allowing use in all
hazardous areas. The required signal amplifier is installed externally in the safe area and is usually
combined with the Intrinsically Safe barrier (sold separately).
Applications
> Hazardous areas rated Division 2. The P&F sensors are UL and CSA listed approved for general
purpose and FM approved Nonincendive or hazardous areas rated Division 2
> Intrinsically Safe. NAMUR Inductive Sensors are rated Intrinsically Safe and must be used with an
approved current and voltage limiting barrier.
> To assist cam setting, the P&F NBB-V3-Z4 Sensors include setting lights in the sensor housing.
Specifications - Inductive Sensors
P&F Sensor
NJ2-V3N
NBB3-V3-Z4
NBB2-V3-US
NBB2-V3-E0
Switch
Code
8
K
Q
M
Type
NAMUR
2 wire DC
2 wire AC/DC
3 wire DC-NPN
Supply
Voltage
5-25 VDC
5-60 VDC
10-140 VDC
10-30 VDC
Load Current /
Target Absent
< 1 mA
< 1 mA
< 1 mA
< 1 mA
Load Current /
Target Present
3 - 15 mA
4 - 100 mA
5 - 200 mA
5 - 100 mA
Sensor FM
Approval
Intrinsically Safe
Nonincendive Div. 2
Nonincendive Div. 2
Nonincendive Div. 2
NBB2-V3-E2
*Moniteur can also supply Valve Position Transmitters with other adaptable sensors to your specifications.
MONITEUR DEVICES INCORPORATED
36 Commerce Road, Cedar Grove, NJ 07009 Tel. (973) 857-1600 Fax (973) 857-7289
N
3 wire DC-PNP
www.moniteurdevices.com
10-30 VDC
< 1 mA
5 - 100 mA
Nonincendive Div. 2
Form S3-0609
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