integrating technologies
USM 5.1 Ethanol Datasheet
USM 5.1 Ethanol Sensor-Module
Functionality:
The USM 5.1 sensor module works with only
one metal oxide semiconductor sensor. The
functionality is based on the patent pending
“Interaktive-Multi-EffektVerfahren”
(IME)
[English: interactive multi-effect process] from
E.T.R., which uses a specific gas sensor for
each gas type.
With IME it is not the ohmic resistance of the
gas sensor that is analyzed, as is common
practice, but the electronic charge shift that is
generated by the target gas. This method offers
extremely high stability over long duration in
comparison with the currently used SensorSystems.
At the instant of exceeding a predefined
concentration of a gas a digital output is
activated which can run an alert or open a
ventilation flap.
General information:
� Item number
� Type
� Gas
� Sensor
� Hardware
� Circuit diagram
� Layout
Filename
� Parameter set
� Microcontroler software
0020 0300
Ethanol
C2H6O
TGS2620C00
USM5.1A Rev0
SP20070921-USM5.1 A Rev0.sch
USM5.1
SP-20070921-USM 5.1 A Rev0.brd
3
SW18
Anfragen an: [email protected]
Ihr Distributor:
UNITRONIC AG • Mündelheimer Weg 9 • 40472 Düsseldorf
Tel. 0211-95110 • Fax 0211-9511111 • [email protected]
MEMBER
OF
LAGERCRANTZ
GROUP
www.unitronic.de
Technical specifications:
• Supply voltage
• Power consumption typical (TU=23°C)
• Inrush current max.
• T90 (0 Æ 250 ppm C2H6O)
• Measuring interval
• Warm up time, ready status
• Alarm threshold
• Resolution
• LED-Indication
o Warm up time
o Operation
o Threshold exceeded
o Error
• Output switch (open collector)
o Output current max.
o Output voltage max.
o Output power
• Output circuit diagram
• Dimensions (Sensor element incl.)
• Weight
• Operating temperature (in accord. Figaro datasheet)
• Storage temperature (in accord. Figaro datasheet)
• Operating humidity (in accord. Figaro datasheet)
• Bus
Calibration:
• Calibration gas
•
•
•
•
Date:
5VDC ± 0,2 VDC
305 mW
80 mA
6 sec
330 ms
90 sec
≥ 250 ppm C2H6O
10 ppm C2H6O
green LED on and red LED flashing
green LED on
green LED and red LED
red LED flashing
≤ 50 mA
≤ 33 VDC
≤ 1,7 Watt
see figure 2
l/w/h 55 x 41 x 12 mm; see fig. 1
27 g
0 °C +70 °C, extension possible
-40 °C + 70 °C
< 95% rF, not condensing
internal test bus
250 ppm Ethanol in synth. air; 50% r.F.; 2l/min; TRoom
(Test gas 500ppm Ethanol in synth. air)
Setting gas mixer tab (A=0 %; B=0%; C=100%; D=100%)
Calibration time
2 minutes after exposure in calibration gas
False alarm check out interval Operating 16 hours while exposed indoor air
Alarm threshold
check
277 ppm C2H6O in synth. air; 44% r.F.; 1,8 l/min; TRoom
(Testing gas 500ppm Ethanol in synth. air)
Setting gas mixer tab (A=0 %; B=0%; C=100%; D=80%)
Alarm after x sec t1 ≤ x ≤ t2
180 sec ≤ t ≤ 300 sec
15.01.2008
Fig. 1 Dimensions
Pin. Nr.
Name
Description
X1 and X2
1
GND
Common ground / Power supply 2
N.C. / Opt. In.
Optional input – do not connect
3
N.C. / Opt. Out Optional output – do not connect
4
D1 OC
Digital output – open collector
5
+5V
Power supply +5VDC ± 0,2V
Connector X2, type : B5B-ZR-SM4-TF, Manufacturer JST
Fig. 2 Output circuit diagram
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