Instruction Manual
MX4A Active Convection Gauge
2.3
Menu Navigation
The MX4A contains many operator customizable features. Changing these features is possible through
the menu or via RS-485 communications. To navigate the menu simply use the buttons found on top
of the MX4A. The four buttons include the SEL button, an UP arrow, a DOWN arrow, and an ENT button.
Using the SEL button allows the operator to change between menu categories. Using the ENT button
allows the user to enable value editing and save values in addition to toggling between options where
appropriate. Using the UP and DOWN arrows allows navigation through menu options. The UP and
DOWN arrow buttons are also used to edit values.
2.4
Menu Structure
1. Measurement
2. Calibration
(a) Vacuum
(b) 1 Torr
(c) 70 Torr
(d) Atmosphere
(e) Resolution High/Low
(f) Default
(g) Diagnostic
(h) Analog Output Adjustment
(i) Gas Type
3. Set Points
(a) SP1L
(b) SP1H
(c) SP2L
(d) SP2H
4. Units
(a) Torr/kPa/mbar
5. Output
(a) Analog Output
i. Logarithmic
ii. Linear by Decade
iii. Non-linear
iv. Linear 4
v. Linear 3
vi. Linear 2
vii. Linear 1
(b) RS-485 I/O
i. Address
ii. Parity
iii. Stop Bits
iv. Baud Rate
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tel: +1 215 947 2500
web: frederickscompany.com
mx4a_im rev L
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