Adixen ASM 142, Руководство пользователя

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Analog outputs
G 300
1.00E+00
1.00E-01
He signal
This curve gives directly the correspondance between the output
voltage and the signal for all leak detectors except ASM 142 S
and ASM 102 S.
For these products, it is necessary to correct the curve He signal.
ASM 142 S: He signal = curve He signal x 15
0 - 10 Volt
The purpose of the present chapter is to present the logarithmic response
of this output.
To get directly the corrected helium signal as it is displayed on the
Digital display, use the 0 - 10 Volt linear output (refer to B 300) on
the same I/O interface connector.
Note: the pressure analog output is not the same as the helium output.
1.00E-02
1.00E-03
ASM 102 S: He signal = curve He signal x 1000
Example: V = 4.96 V
- All leak detectors except ASM 142 S and ASM 102 S 9.1x10 -6 mbar.l/s
- ASM 142 S 9.1x10 -6 x 15 1.365x10 -4 mbar.l/s
- ASM 102 S 9.1x10 -6 x 1000 9.1x10 -2 mbar.l/s
Pressure P (mbar)
Voltage V (volt)
P = 10
(U-5,5)
mbar
0 - 8 Volt
Reminder:
n
The 0 - 8 Volt logarithmic output is located on the I/O interface
connector:
Ground 0 / 8 V
ASM 182/192 family - ASM 1002 Pin 15 Pin 14
ASM 142 family - ASM 122 D -
ASM 102 S - ASI 22
Pin 1 Pin 14
- ASM 182/192 family, ASM 1002: signal connected (COEF.SENS and
COEF.MODE applied)
- ASM 142 family, ASM 122 D, ASM 102 S, ASI 22: signal not
corrected.
n
This output corresponds to the electronic signal obtained with the best
sensitivity mode of the leak detector.
n
This output corresponds to the electronic signal obtained at the level
of the analyzer cell (VHS amplification system) and does not include the
correction factors generated by the internal and external calibration.
n
The chart and curve shows the correspondance between output voltage
and helium signal. The helium signal given by the present chart needs
to be multiplied by COEF.SENS which is adjusted during the internal
(auto)calibration: refer to Calibration or Configuration menus (see
Chapter C) in order to get access to COEF SENS value. This COEF.SENS
value is modified at each autocalibration: its takes into account the fact
that the characteristics of the leak detector (analyzer cell and pumps
status) and evoluates as it is used.
n
If an external correction ratio like VAC COR, SNIF COR or GL COR is
activated, the helium signal given by the present chart also needs to be
multiplied by this ratio: refer C 300.
1/2
1.00E-04
1.00E-05
1.00E-06
1.00E-07
1.00E-08
1.00E-09
1.00E-10
1.00E-11
1.00E-12
1.00E-13
0 1