BUCHI ELS Detector C-650 - Manual (Page 28)

C-650 Operation Manual, Version B 5 Putting into operation 28
gain can be set via the Temp/Gain screen (Fig 5.16) and the pressure units can be selected via
the Noise Filter/Pressure Unit screen (Fig 5.18).
Temperature value blinks if desired temperature is not reached and stable. The pressure value
blinks if the gas pressure is lower than 2.0 bar.
When the button is pressed; the Offset screen (Fig 5.15), which is used to select the desired
offset is displayed.
Offset screen
Signal Offset (mV)
000
Fig 5.15: Offset
To increase the offset value, click on the key. If you press the button quickly, the offset will
increase by 1; if you press and hold the button, the value will increase at the rate of 20 mV/sec.
Once you have set the desired offset, press the button to validate the new value.
When the device is Autozeroed, the Autozero operation updates the Offset value to set the Signal
to 0 mV.
Press the button to access the Temp/Gain screen (Fig 5.16).
Temperature/Gain screen
Temp: 50 °C
Gain: 1
Fig 5.16: Temp/Gain screen
The Temp/Gain screen is used to set the desired Temperature and Gain. When the screen is
accessed, the cursor is on the Temp setting. This setting can be changed with the
and
buttons and validated by the button. The temperature range is 20 to 100 ° C.