Instruction Manual
MX2A Active Thermocouple Gauge
2.4
Menu Structure
1. Measurement
2. Calibration
(a) Vacuum
(b) 10 Torr
(c) Atmosphere
(d) Resolution High/Low
(e) Default
(f) Diagnostic
(g) Analog Output Adjustment
(h) 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
2.5
Explanation of Menu Items and Navigation
Below is a general explanation of each level of the menu structure of the MX4A.
2.5.1
Measurement
The measurement screen contains the reading of the sensor in easy-to-read blue digits and includes
units. In addition to the digital reading, the yellow bar on the measurement screen provides an analog
indication of the pressure based on a logarithmic scale. At 1000 Torr the yellow bar should stretch
across the width of the screen. At 0 Torr the yellow bar will disappear, and at 1 Torr, the yellow bar
will be half way across the screen.
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tel: +1 215 947 2500
web: frederickscompany.com
mx2a_im rev F
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