GENERAL
Honeywell FEMA's Smart DCM Electronic Pressure Switches
and Smart SN Electronic Pressure Transmitters are micro-
processor-controlled pressure measurement devices for
relative pressure measurements (-1...+1 bar / 0...40 bar).
With their high-performance stainless steel sensor material,
they are suitable for a wide range of liquid media or gases in
industrial applications. They are screwed (G1/2") directly into
the line / vessel to be monitored.
BEFORE PROCEEDING!
VALIDITY
These Operating Instructions pertain to measuring systems
containing Smart SN Pressure Transmitters / DCM Pressure
Switches. Device software must be version 1.30 or higher.
QUALIFIED PERSONNEL AND USAGE
Use only these Operating Instructions (and the corresponding
Mounting Instructions) to set up and operate the device. Only
qualified personnel are permitted to install, commission,
operate, and maintain the device. This device may be used
only in applications and under operating conditions described
in these Operating Instructions.
TECHNICAL DATA
Materials
Parts contacting medium
Chemical resistance
HMI
Total weight
Ambient (operating) temperature and humidity
Versions (non-HMI)
Versions (HMI)
Humidity
Temperature of medium
Storage temperature
Versions (non-HMI)
Versions (HMI)
Climate class
Indoors
Outdoors
Mechanical stability
Vibration
Mechanical shock
® U.S Registered Trademark
Copyright © 2007 Honeywell Inc. • All Rights Reserved
Stainless steel (1.4571)
4C4 as per EN 60721-3-4
PA66 GF25
300 g without, 350 g with HMI
-20...+80 °C
-20...+70 °C
0...95% r.h., non-condensing
-30...+100 °C (≤ 16 bar models)
-40...+100 °C (> 16 bar models)
-40...+80 °C (≤ 16 bar)
-40...+100 °C (> 16 bar)
-30...+80 °C
4K4H as per EN 60721-3-4
3K8H as per EN 60721-3-3
20 g as per IEC 68-2-6 (up to
2000 Hz)
100 g as per IEC 68-2-27
Smart DCM/SN
ELECTRONIC PRESSURE SWITCHES AND TRANSMITTERS
Device resistance / accuracy (combined non-linearity,
hysteresis, and repeatability at 20 °C)
overpressure safety
burst pressure
sensor type
accuracy
Pressure meas. range
Cycle time
EMC
Protection class
Protection rating (non-HMI) IP67 as per EN 60529-2
Protection rating (HMI)
Process connection
Electrical connection
Switch
Output, high level
Output, low level
Reaction time
WARN output voltage
Transmitter (analog) output
Current (2-wire)
Voltage / current (3-wire)
V
(2-wire)
SUPPLY
V
(3-wire)
SUPPLY
Current output (max. load) (V
Voltage output (min. load)
Transient response
Span, offset, and long-term drift (within temperature
compensation range of 0...80 °C)
temp. effect on span
temp. effect on offset
long-term drift*
OPERATING INSTRUCTIONS
P ≤ 16 bar
P > 16 bar
2x P
2x P
nominal
nominal
4x P
10x P
nominal
nominal
piezo
thin-film
max. ±0.8% FS
max. ±1% FS
±0.5% FS (typ.)
±0.6% FS (typ.)
0...40 bar (rel.), -1...1 bar (vac.)
100 ms
according to EN 61326
2 as per EN 61010
IP65 as per EN 60529-2
G1/2" external thread
4-prong A-coded M12x1 plug
V
minus 2 V (min.)
SUPPLY
GND plus 0.5 V (max.)
max. 300 ms
passive: V
- 2 V
SUPPLY
active: ≤ 0.5 V
4...20 mA
0/2...10 V, 0/4...20 mA
18...35 Vdc
18...35 Vdc, 24 Vac +10%/-20%,
max. 50 mA
- 16 V) / 22 mA
SUPPLY
(max. error ±0.25% FS)
15 kΩ (max. error ±0.25% FS)
approx. 200 ms
max.
typical
±0.3% FS / 10 K
±0.2% FS / 10 K
±0.3% FS / 10 K
±0.2% FS / 10 K
±0.3% FS / year
±0.2% FS / year
MU2B-0328GE51 R0207A
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