Intek 200 User Manual
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1.
Analog Outputs — The unit will have two 0-5Vdc, 0-10Vdc or 4-20 mA signals for flow and
temperature outputs. The default configuration for each output is 4-20 mA active transmitter.
See SECTION 2.3.3 for a discussion of the output types. The ‘FLOW’ output covers zero to
100% of full scale flow and quickly drops to zero below the instrument’s calibrated low flow
value. Refer to the Output Curve (Figure A-1) at the end of the manual. Similarly, the
‘TEMP’ output covers zero to 100% of the specified temperature range. Note that the zero
output value is not necessarily 0°F or 0°C (see Output Definition, SECTION 6).
2.
Pulse Output — The factory standard for pulse frequency is 2 KHz at full scale flow as a flow
rate or totalization signal. Specific units of volume or mass per pulse may also be supplied
to drive a customer supplied totalizer. Refer to Output Definition, SECTION 6.
3.
Digital Alarm Outputs — The two outputs labeled ‘OUT1’ and ‘OUT2’ can be used for
monitoring critical process conditions and for alarming exceeded process limits. They are
factory default set for low flow and high temperature alarms respectively. Refer to Output
Definition, SECTION 6 for specific alarm values or custom configuration information
regarding these outputs.
The Status alarm output indicates a processor busy, instrument or sensor fault, or a loss of instrument
power. When this output is low, the instrument is not capable of indicating flow or temperature properly
and may produce unexpected outputs. This output will normally go low when initializing or when
special diagnostic commands are specifically sent to the instrument. Otherwise, when the status output
is low observe the display for additional information and refer to the Trouble Shooting Section of this
manual.
3.4 KEYPAD and DISPLAY
The keypad can be used to change the information on the alphanumeric display as well as to adjust the
calibration.
!! !! CAUTION: Do not use the keypad while the serial communication port
is actively receiving data or commands from an external source. Temporarily
Figure 5 - Keypad