Part 1 Control Unit
Model 3010MA
Teledyne Analytical Instruments
34
39
Range
2
ID
Contact
19
Range
3
ID
Contact
18
Range
3
ID
Contact
34
Not
used
in
3010MA
35
Not
used
in
3010MA
Network I/O: A serial digital input/output for local network
protocol. At this printing, this port is not yet functional. It is to be
used for future options to the instrument. Pins 13 (+) and 29 (–).
Remote Valve Connections: The 3010MA is not equipped with
remote valves for controlling sample or calibration gases however
these valves can be added by the user. The instrument is capable of
driving up to 4 remote solenoid valves as detailed below. The remote
valve connections are used as a method for directly controlling
external sample/zero/span gas valves. See Figure 3-6.
Figure 3-6: Remote Valve Connections
The voltage from these outputs is nominally 0 V for the OFF and
15 V dc for the ON conditions. The maximum combined current that can
be pulled from these output lines is 100 mA. (If two lines are ON at the
same time, each must be limited to 50 mA, etc.) If more current and/or a
different voltage is required, use a relay, power ampli fier, or other
matching circuitry to provide the actual driving current.
In addition, each individual line has a series FET with a nominal ON
resistance of 5 ohms (9 ohms worst case). This can limit the obtainable
voltage, depending on the load impedance applied. See Figure 3-7.
Summary of Contents for 3010MA
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