Dwyer 2500 - Manual (Page 10)

949-1190-1 Page 10 December, 1998
compensate for sensor error. Note: InPC is reset to zero when
the input type is changed, or when decimal position is changed.
FiLt Digital Filter: Select OFF, 1 to 99. In some cases the time constant
of the sensor, or noise could cause the display to jump enough to
be unreadable. A setting of 2 is usually sufficient to provide enough
filtering for most cases, (2 represents approximately a 1 second
time constant). When the 0.1 degree resolution is selected this
should be increased to 4. If this value is set too high, controllability
will suffer.
SECURE MENU
Hold UP ARROW & ENTER for 5 Seconds. Press INDEX to advance to
the next menu item. Press UP ARROW or DOWN ARROW to change the
value in the display. Press ENTER to retain the value.
SECr Security Code: See the Security Level Selection and the Password
Table in this manual, in order to enter the correct password.
InP Input Type: Select one of the following. The selections are limited
to the input type you ordered. If you ordered a thermocouple input
control, make your selection from the thermocouple list. If you
ordered an RTD input, select fron the RTD list.
Thermocouple selections:
J-IC Type “J” Thermocouple.
CA Type “K” Thermocouple.
E- Type "E" Thermocouple.
t- Type “T” Thermocouple.
L- Type "L" Thermocouple.
n- Type "N" Thermocouple.
RTD selections:
P385 100 ohm Platinum (DIN 0.00385
Ω/Ω
/°C).
P392 100 ohm Platinum (NIST 0.00392
Ω/Ω/
°C).
n120 120 ohm Nickel (US Industrial 0.00672
Ω/Ω/
°C)
F-C Select temperature descriptor for Fahrenheit or Celcius.
F
°F descriptor is On and temperature inputs will be
displayed in actual degrees Fahrenheit.
C °C descriptor is On and temperature inputs will be
displayed in actual degrees Celsius.
dPt Decimal Point Positioning: Select 0 or 0.0. This only effects the
Process Value, SP, ALLo, ALHi, and InPC.
0
No decimal Point is selected.
0.0 One decimal place is selected. If the Process Value
moves outside of the decimal point range ends (-199.9
to +999.9), the Process Value display will autorange to
whole degree resolution. When the Process Value