Watlow Series 1500 User Manual Page 80

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Specifications
General Features
Technical Reference
.
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.
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.
Dual channel
closed
loop control.
Temperature and relative humidii.
51
time-based steps for
ramping.
8 event outputs per step.
1
event input.
1
remote hold input.
Data communications interface optional.
Fully programmable parameters.
Membrane faceplate.
User-friendly,
1/2
DIN plug in chassis.
Three year warranty.
Control Mode
l Microprocessor-based user selectable modes.
l
Dual channel with dual control outputs per channel.
l
Control parameters user selectable.
Channels
1
&
2 as Temp
&
Temp
or
Temp
&
RH.
On/Off
switching hysteresis:
0.3°F
or 0.3%
RH
with RTD or
0-5VDC
inputs.
On/Off switching hysteresis:
3.0°F
for T/C.
PID
parameters per channel or per output.
Proportional band:
0-500°F
or 060% RH.
Reset: 0.00-20.00 repeats per minute.
Rate:
0.00-5.00
minutes.
Rate band:
0-3
times proportional band.
Cycle time:
0-60
seconds.
Deadband:
+20°
On/Off or
±20°
with
PID.
l
Alarm parameters user selectable.
l
Latching or non-latching, both channels.
l
Process high
&
low and deviation high
&
low per channel.
l
51
steps each selectable as:
l
Set point value.
l
Ramping, value and time.
l
Wait For, time or value
l
Jump/Loop to another step.
Operator
Interface
l
Membrane front panel user-friendly
I/2
DIN size.
l
Four
digit
1/2”
LED’s displaying actual process input value.
l
-Eight
character alphanumeric
1/2”
LED’s displaying set point, step number, and
various prompts and values for
the
1500.
l
Nineteen LED’s to indicate various status
conditions.
l
Nine keys for control and value entry.
Input
.
Thermocouple,
RTD,
and electrical
%
RH input.
l
Automatic cold junction compensation for thermocouples.
l
RTD input 2 or 3 wire, platinum, 100ohms
@
25°C,
calibrated to
curve
#3916
(0.003916ohms/ohms/°CΩ Ω Ω Ω
DIN
curve
calibration
##3850
(0.003850ohms/ohms/°C available upon request.
l
Sensor break protection de-energizes output to protect system.
l
°F,
°C
or
%
RH
is user selectable, RTD version.
80
WATLOW Series
1500
User's
Manual
Specifications,
Appendix
Page view 79
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