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FTM 30 DR, FTM 31 DR, FTM 32 DR
9 Technical Data
9.1 Table to DIN 19259
General Specifications
Application
Operation and System Design
Input
Output
Accuracy
Operating Conditions
Continued overleaf
Endress+Hauser
Manufacturer
Instrument family
Instrument types
Instrument function
Limit detection
Measuring principle
Modularity
Signal processing
Electrical isolation
Measured variable
Measuring range
(detection range)
Output signal
Signal failure
Load (connectable)
to FEM 41
Load (connectable)
to FEM 44, 45
Output, General information
Fail-safe switching
Switching time
Reference conditions
Measured error
Setting time
Switching time error
Effects of temperature and
operating pressure
Mounting
Orientation
Lateral load on fork for FTM
30 DR
Endress+Hauser GmbH+Co
Soliphant II
FTM 30 DR, FTM 31 DR, FTM 32 DR
Level limit switch
Maximum or minimum detection in silos with powdery and fine-grained
solids, max. grain size 0.4 in (10 mm)
Damping of the oscillation of a fork vibrating at its resonant frequency
Complete limit switch, consisting of the sensor and separate housing and
integrated electronic insert FEM... (switching unit)
– Two-wire AC version (with FEM 41):
load switched directly via a thyristor in the power supply;
– Universal power supply with relay output (with FEM 44, 45):
load switched via a potential-free changeover contact
FEM 41
: between sensor and power supply;
FEM 44, 45: between sensor, power supply and load
Height (limit value, binary)
FTM 30 DR: determined by installation point
FTM 31 DR: determined by sensor length (tube)
approx. 16 in ...155 in (approx. 400 mm ...4000 mm) from above
FTM 31 DR with sliding sleeve: adjustable,
ca. 8 in ...150 in (approx. 200 mm ...3900 mm) from above
FTM 32 DR: determined by sensor length (rope)
approx. 30 in ...765 in (approx. 750 mm ...19500 mm) from above
Binary, output blocked when reaching limit
Output blocked
Transient (40 ms) max. 1.5 A, max. 375 VA at 250 V
or max. 36 VA at 24 V
(no short-circuit protection)
continuous max. 87 VA at 250 V, max. 8.4 VA at 24 V
min. 2.5 VA at 250 V (10 mA), min. 0.5 VA at 24 V (20 mA)
Voltage drop across FEM 41 max. 12 V
Residual current max. 4 mA with blocked thyristor
FEM 44: 1 changeover contact,
FEM 45: 2 changeover contacts
I~ max. 6 A, U~ max. 250 V;
P~ max. 1500 VA, cos ϕ = 1, P~ max. 750 VA, cos ϕ > 0.7;
I– max. 6 A to 30 V, I– max. 0.2 A to 125 V;
additional switching delay 0.3 s
Voltage difference between relay output and power supply max. 300 V
Minimum or maximum fail-safe mode, switchable
FEM 41, 44: approx. 0.5 s when covered, approx. 1.5 s when free
FEM 45
: approx. 0.5 s when covered, approx. 1.5 s when free,
switchable to approx. 2.5 s when covered,
approx. 7.5 s when free
Temperature T = 70 °F (20 °C), operating pressure p
Density of material > 62.4 lbs/ft³ (> 1 kg/l),
grain size < 0.08 in (< 2 mm)
approx. 0.4 in (approx. 10 mm) for vertical mounting,
approx. 0.2 in (approx. 5 mm) for lateral mounting of the sensor
The output remains open approx. 2.5 s after switching on the power supply
+/– 25 % when covered or free
negligible
Any position for FTM 30 DR and FTM 31 DR with short tube
Vertical FTM 31 DR with long tube and FTM 32 DR
130 lbs (600 N) on narrow edge of tines, static
9 Technical Data
= 14.5 psi (1 bar)
e
31
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