CRANE Co.
280N MIDLAND AVENUE, STE.258, SADDLE BROOK, NJ 07663 TEL: 201-794-7650 FAX: 201-794-0913
www.avidcontrols.com
01/05/2018 TECH-537/ D.W.O. 23142 Page 13 of 21
4.4.5 Span Position (SPAN XX) - Adjusts the electronic stop away from (increasing values) or
towards (decreasing values) from the physical open position. 0 being nominally the
position of the hard stop Span Zero and 100 about 15 degrees away from it
Pressing DOWN Key reduces the span position of the valve away from the hard stop
Pressing UP Key moves the span position closer to the hard stop.
4.4.6 Direct / Reverse Acting (DIR ACTG / REV ACTG) - Direct Acting means that the valve
opens with increasing loop current, Reverse Acting means that it closes with increasing
loop current. This function can be selected after the auto calibration is complete.
Pressing the DOWN or UP Key toggles this setting.
4.4.7 Transmitter Fault Current (TX FT LO or TX FT HI) - This specifies the Monitor Transmitter
Fault current as either LO 3.5mA or HI 21.5mA. This is always available but only effective
if the unit has a Transmitter.
The LCD shows “DIR ACTG or REV ACTG” press the
SEL
Key again and the LCD shows “TX
FT LO or TX FT HI”. TX FT LO or TX FT HI can now be selected.
Pressing the DOWN or UP Key toggles this setting.
4.4.8 Calibration Timeout (REG CAL or LONG CAL): Time for the first move in calibration will
be set at a maximum of 30 seconds for REG CAL and all subsequent time outs are keyed
off the time it takes to go from closed to open, to create much shorter subsequent time
outs for smaller valves. The initial 2 minute time out can be lengthened in the Manual
Calibration routine Long CAL.
This should normally be left at REG CAL. If however the valve is likely to take more than
30 seconds to open or close, switching to LONG CAL allows 100 seconds.
The LCD shows “TX FT LO or TX FT HI” press the
SEL
Key again and the LCD shows “REG
CAL or LONG CAL”. REG CAL or LONG CAL can now be selected.
Pressing the DOWN or UP Key toggles this setting.
4.4.9 Saving or discarding changes:
At the end of any procedure, changes can be kept by saving the changes. To Save the
changes by pressing and holding the Key until the LCD shows:
HOLD
TO SAVE
SAVED Changes made to this point are saved.
Releasing after a shorter time will cause the changes to be discarded.
LCD will show “DISCRDED”
Or you can Exit without saving, this discards the changes that were entered. All Manual
Calibration Steps will timeout after 2 minutes, discarding any changes if no Key is pressed
during that time.
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