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MU2B-0328GE51 R0207A
Smart DCM/SN
ELECTRONIC PRESSURE SWITCHES AND TRANSMITTERS
OPERATING INSTRUCTIONS
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
Stainless steel (1.4571)
Chemical resistance
4C4 as per EN 60721-3-4
HMI PA66
GF25
Total weight
300 g without, 350 g with HMI
Ambient (operating) temperature and humidity
Versions (non-HMI)
-20...+80 °C
Versions (HMI)
-20...+70 °C
Humidity
0...95% r.h., non-condensing
Temperature of medium
-30...+100 °C (
≤
16 bar models)
-40...+100 °C (> 16 bar models)
Storage temperature
Versions (non-HMI)
-40...+80 °C (
≤
16 bar)
-40...+100 °C (> 16 bar)
Versions (HMI)
-30...+80 °C
Climate class
Indoors
4K4H as per EN 60721-3-4
Outdoors
3K8H as per EN 60721-3-3
Mechanical stability
Vibration
20 g as per IEC 68-2-6 (up to
2000 Hz)
Mechanical shock
100 g as per IEC 68-2-27
Device resistance / accuracy (combined non-linearity,
hysteresis, and repeatability at 20 °C)
P
≤
16 bar
P > 16 bar
overpressure safety
2x P
nominal
2x
P
nominal
burst pressure
4x P
nominal
10x
P
nominal
sensor type
piezo
thin-film
accuracy
max. ±0.8% FS
±0.5% FS (typ.)
max. ±1% FS
±0.6% FS (typ.)
Pressure meas. range
0…40 bar (rel.), -1…1 bar (vac.)
Cycle time
100
ms
EMC
according to EN 61326
Protection class
2 as per EN 61010
Protection rating (non-HMI) IP67 as per EN 60529-2
Protection rating (HMI)
IP65 as per EN 60529-2
Process connection
G1/2" external thread
Electrical connection
4-prong A-coded M12x1 plug
Switch
Output, high level
V
SUPPLY
minus 2 V (min.)
Output, low level
GND plus 0.5 V (max.)
Reaction time
max. 300 ms
WARN output voltage
passive:
V
SUPPLY
- 2 V
active:
≤
0.5 V
Transmitter (analog) output
Current (2-wire)
4…20 mA
Voltage / current (3-wire)
0/2...10 V, 0/4...20 mA
V
SUPPLY
(2-wire)
18…35 Vdc
V
SUPPLY
(3-wire)
18…35 Vdc, 24 Vac +10%/-20%,
max. 50 mA
Current output (max. load) (V
SUPPLY
- 16 V) / 22 mA
(max. error ±0.25% FS)
Voltage output (min. load) 15 k
Ω
(max. error ±0.25% FS)
Transient response
approx. 200 ms
Span, offset, and long-term drift (within temperature
compensation range of 0…80 °C)
max.
typical
temp. effect on span
±0.3% FS / 10 K ±0.2% FS / 10 K
temp. effect on offset
±0.3% FS / 10 K ±0.2% FS / 10 K
long-term drift*
±0.3% FS / year ±0.2% FS / year
