28
4.2 Signal transmitter 24-1072-2125 for
flow indicator
Table 12
Signal transmitter 24-1072-2125
Properties/characteristics Values
<Content>
Switching voltage (U)
max. 30 V DC
Switched current (I)
max. 100 mA
Switching capacity (P)
Max. 1W
Function
NC contact, contact between
pin 1 and pin 4 closed during
operation
Switching functions
see Chapter 6.8
Fuse protection
Performed by customer-
provided external circuit
breaker (for intrinsic safety,
see page 2)
Enclosure rating
IP65
Connection / connection
cross-section
Cable socket, straight, without
cable, max. 2 x 0.75 mm
2
;
Order no. 2370-00000164
Cable socket, straight, with 5
m cable, max. 2 x 0.34 mm
2
;
Order no. 24-1882-5005
Weight
0.2 kg
4.3 Pulse generator 2340-00000091 for
gear-type flow indicator
<
DANGER
Excessive switching voltage hazard
The pulse generator may be used only with an
isolating amplifier. The following permitted
maximum values must not be exceeded:
Ui = 16 V / Ii = 25 mA / Pi = 34 mW
Table 13
Pulse generator 2340-00000091
Properties/characteristics Values
<Content>
Switch function
NC contact
Outlet type
NAMUR / 2-wire
Sensing distance S
n
4 mm
Effective sensing distance S
r
3.6 … 4.4 mm typ.
Secured sensing distance S
a
0 … 3.24 mm
Switching frequency f
0 … 1500 Hz
Nominal voltage U
0
8.2 V (R
i
approx. 1 kΩ)
Hysteresis H
1 … 15 typ. 5%
Table 13
Pulse generator 2340-00000091
Properties/characteristics
Values
<Content>
Reverse voltage protection
Yes
Short-circuit protection
Yes
Power consumption
Initiator pin not detected –
min. 2.2 mA
Initiator pin detected - ≤ 1
mA
Effective capacitance /
inductance (with 10 m cable)
Inner capacitance C
i
max.
120 nF
Inner inductance Li
max 50 μH
Enclosure rating
IP67
Ambient temperature
-25 … 57 °C
1)
Storage temperature
-40 … 100 °C
Mounting flush
mountable
Housing material
Stainless steel 1.4305
Face
PBT
Explosion protection marking II 1G Ex ia IIC T6 ..T1 Ga
II 1D Ex ia IIIC T135 °C Da
Weight 0.03
kg
NOTE
1)
See the sensor's EU type examination certificate for the
relationship between the type of connected circuit, the
maximum permissible ambient temperature, the surface
temperature, and the effective internal reactances. The
number of the type examination certificate is entered on the
sensor type plate.
Fig. 10
Circuit diagram for pulse generator 2340-00000091
Table 14
Wire colors in accordance with IEC 60757 for circuit
diagram
10
Number Designation
Color
1 BN Brown
2 BU Blue
