TELEVAC MX4A, Instruction Manual

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Instruction Manual MX4A Active Convection Gauge
ˆ
Navigate to the measurement screen.
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Press SEL three times.
ˆ
Press ENT to unlock the units screen.
ˆ
Press UP and DOWN to navigate between units.
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When the desired unit is reached, press ENT to save and lock the change.
Depending on the process or the region, the desired units for the MX4A may vary. To accommodate
this need, the MX4A includes a unit adjustment feature. The MX4A can be set to display the units in
Torr, kPa, or mbar.
2.5.5 Output
To reach the output screen:
ˆ
Navigate to the measurement screen.
ˆ
Press SEL four times.
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Press UP and DOWN to navigate between the analog output and RS-485 panes.
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When the desired field is present, press ENT to enter the heading.
The MX4A features a number of analog outputs and RS-485 digital output and input.
A . Analog Output
To toggle the analog output type:
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Navigate to the analog output screen.
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Press ENT to unlock the screen.
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Press UP or DOWN to set the desired output type.
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When the desired analog output is reached, press ENT to save and lock the change.
The types of analog output are listed below. For more information on the types of output, please
see the heading in this manual labeled Analog Output.
(a) Logarithmic
(b) Linear by Decade
(c) Non-linear
(d) Linear 4
(e) Linear 3
(f) Linear 2
(g) Linear 1
B . RS-485 I/O
To make changes under the RS-485 I/O screen:
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Navigate to the RS-485 I/O screen.
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Press UP or DOWN to reach the desired RS-485 setting.
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Press ENT to unlock the setting.
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Press UP or DOWN to change the fields.
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Press ENT to save and lock the change.
The RS-485 settable fields are listed below. Please see the sections labeled RS-485 Commu-
nications and Changing Communications Parameters for more details and a complete list of
commands. Listed below are the fields within the RS-485 I/O screen.
email: sales@frederickscompany.com tel: +1 215 947 2500 web: frederickscompany.com mx4a_im rev L 11 of 16