Chromalox TEMPERATURE CONTROLLER 1604-7 - Manual (Page 14)

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21 = TC type J range -150 / +1830 °F
22 = TC type K range -150 / +2500 °F
23 = TC type T range -330 / +750 °F
24 = TC type N range -150 / +2550 °F
25 = TC type R range 0 / +3200 °F
26 = TC type S range 0 / +3200 °F
27 = RTD type Pt 100 range-199.9 / +400.0 °F
28 = RTD type Pt 100 range -330 / +1470 °F
NOTE: selecting P1 = 0, 2, 4, 6, 10 or 27, the
instrument set automatically P39 = P40 = FLtr.
For all the remaining ranges it will set P39 = P40
= nOFL.
If a different selection is desired, P39 and P40
may be modified, after executed P1 configuration.
P2 = Decimal point position
This parameter is available only when a linear
input is selected (P1 = 12, 13, 14, 15, 16, 17, 18
or 19).
----.
= No decimal figure.
---.-
= One decimal figure.
--.--
= Two decimal figures.
-.---
= Three decimal figures.
P3 = Initial scale value
For linear inputs it is programmable from -1999 to
4000.
For TC and RTD input, it is programmable within
the input range.
When this parameter is modified, rL parameter
will be re-aligned to it.
P4 = Full scale value
For linear inputs it is programmable from -1999 to
4000.
For TC and RTD input it is programmable within
the input range.
When this parameter is modified, rH parameter
will be re-aligned to it.
The initial and full scale values determine the
input span which is used by the PID algorithm,
the SMART and the alarm functions.
NOTE: the minimum input span (S = P4 - P3), in
absolute value, should be set as follows:
For linear inputs, S > 100 units.
For TC input with °C readout, S > 300 °C.
For TC input with °F readout, S > 550 °F.
For RTD input with °C readout, S > 100 °C.
For RTD input with °F readout, S > 200 °F.
P5 = Output 1 function
rEv = Out 1 is used as control output with
reverse action
dir = Out 1 is used as control output with direct
action
Pv.rt = Out 1 is used as analog retransmission of
the measured value (process variable)
SP.rt = Out 1 is used as analog retransmission of
the operative set point.
P6 = Output 1 type.
0-20 = output type 0 - 20 mA.
4-20 = output type 4 - 20 mA.
REVERSE ACTION DIRECT ACTION
t
Input
t
Output
t
Input
t
Output
1604-7-1-AB.p65 5/16/00, 10:50 AM 11