EM1-H0R0V-1N SENSIRION, EM1-H0R0V-1N Datasheet - Page 10

• Manufacturer Part Number: EM1-H0R0V-1N
• Description: MASS FLOW METER, FOR GASES
• Manufacturer: SENSIRION

Specifications of EM1-H0R0V-1N

• Svhc: No SVHC (15-Dec-2010)
• Air Flow Range: 0 - 0.05 L/min
• External Length / Height: 104mm
• External Width: 33.7mm
• Height: 43.6mm
• Length (imperial): 5.35"
• Output Configuration: RS232/SPI
• Output Type: RS232
• Pressure Max: 8bar
• Supply Voltage Range Dc: 7V To 18V
• Supply Voltage Dc Max: 18VDC
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

CMOSens
3.2 Measurement frequency vs. resolution
There is a trade-off between resolution and
measurement time. Possible settings are listed in Table
7. Choosing 12 bit results in a measurement interval of
80 ms. With the max resolution of 15 bit, a new
measurement is provided every 640 ms.
Table 7: Resolution settings using the res=value
command and corresponding response times
res=
0
1
2
3
4
5
6
7
Table 8: Error Codes
4
4.1 Absolute Maximum Ratings
Ambient storage temperature:
Ambient operating temperature:
Maximum operating pressure:
Burst pressure:
www.sensirion.com
Error Code
ERROR 01
ERROR 02
ERROR 03
ERROR 04
ERROR 05
ERROR 06
ERROR 50
ERROR 99
Specifications CMOSens
®
EM1 Mass Flow Meter for Gases
Resolution
[bit]
10
11
12
13
14
15
8
9
Description
Invalid command
Wrong syntax
Value out of range
Not allowed mode
No permission
No permission
Invalid EEPROM
Internal error
integration
time [ms]
Internal
signal
160
320
640
10
20
40
80
5
-40°C to 100°C / -40°F to 212°F
0°C to 60°C / 32 °F to 140°F
8.0 bar / 116 psi for steady operation, 12.0 bar / 174 psi for short time operation
40.0 bar / 580 psi
®
EM1 Mass Flow Meter
Data Sheet EM1 - v 2.6 / October 2006
Data rate
3.125
[Hz]
12.5
6.25
1.56
200
100
50
25
3.3 Measurement Strategy
As mentioned in paragraph 3.1 (Important Notes)
excessive EEPROM write cycles should be avoided.
Sensirion therefore recommends to use the EM1 in
PUSH-mode strategy: The EM1 is set to constant
measurement
measurement once it becomes available. Check Table
7 for the update rate (data rate).
When using the EM1 in GET-mode strategy a
measurement is started after the GET command only.
At each GET command the same EEPROM memory
cells are rewritten.
mode
Notes
and
is
pushing
a
10 / 17
new