Red Lion TCU User Manual
Page 82
3.
ANNUNCIATORS
:
LED Backlight Status Indicators (Model dependent)
:
%PW
-
Lower auxiliary display shows power output in (%).
DEV
-
Lower auxiliary display shows deviation
(error)
from
temperature setpoint.
OP1
-
Main control output is active.
AL1
-
Alarm #1 is active.
AL2
-
Alarm #2 is active
(for Dual Alarm Option).
OP2
-
Cooling output is active
(for Cooling Option).
OPN
-
Valve positioner OPEN output is active
(for Valve
Positioner option)
.
CLS
-
Valve positioner CLOSE output is active
(for Valve
Positioner option)
.
CUR
-
Lower auxiliary display shows heater current
(for
Heater Current Monitor option)
.
SEC
-
Lower auxiliary display shows second analog input
(for
Second Analog Input option)
.
MAN
-
Flashing: Controller is in manual mode.
REM
-
ON: controller is in remote setpoint mode
(Second Analog Input option).
-
OFF: controller is in local setpoint mode
(Second Analog Input option).
-
Flashing: controller is in Manual control mode
(Second Analog Input option).
4.
CONTROLS
: Four front panel push buttons for modifying and setup of
controller functions and one external input for parameter lockout or other
functions.
5.
MAIN SENSOR INPUT
:
Sample Period
: 100 msec
Response Time
: 300 msec
(to within 99% of final value w/step input;
typically, response is limited to response time of probe)
Failed Sensor Response
:
Main Control Output(s)
: Programmable preset output
Display
: “OPEN”
Alarms
: Upscale drive
DC Linear
: Programmable preset output
Normal Mode Rejection
: 40 dB @ 50/60 Hz
(improves with increased digital filtering).
Common Mode Rejection
: 100 dB, DC to 60 Hz
Protection
: Input overload 120 VAC for 30 seconds.
6.
THERMOCOUPLE
:
Types
: T, E, J, K, R, S, B, N, Linear mV
Input Impedance
: 20 M
W all types
Lead resistance effect
: 20
mV/350W
Cold junction compensation
: Less than 1°C error over 0 - 50°C ambient
temperature range. Disabled for Linear mV type.
Resolution
: 1 °C/F all types, or 0.1°C/F for T, E, J, K and N only.
7.
RTD
: 2, 3 or 4 wire, 100
W platinum, alpha = 0.00385 (DIN 43760), alpha
= 0.003916
Excitation
: 0.175 mA
Resolution
: 1 or 0.1 degree
Lead Resistanc
e: 7
W maximum
8. R
ANGE AND ACCURACY
: Errors include NIST conformity and A/D
conversion errors at 23°C after 20 min. warm-up. Thermocouple errors
include cold junction effect. Errors are expressed as
±
percent of reading
and
±
3/4 LSD unless otherwise noted.
Type
Range
Accuracy
Wire Color (ANSI)
T
-200 to +400°C
-328 to +752°F
0.20% +1.5°C
0.20% +2.7°F
Blue
E
-200 to +750°C
-328 to +1382°F
0.20% +1.5°C
0.20% +2.7°F
Violet
J
-200 to +760°C
-328 to +1400°F
0.15% +1.5°C
0.15% +2.7°F
White
K
-200 to +1250°C
-328 to +2282°F
0.20% +1.5°C
0.20% +2.7°F
Yellow
R
0 to +1768°C
+32 to +3214°F
0.15% +2.5°C
0.15% +4.5°F
Black
S
0 to +1768°C
+32 to +3214°F
0.15% +2.5°C
0.15% +4.5°F
Black
B
+200 to +1820°C
+300 to +3308°F
0.15% +2.5°C
0.15% +4.5°F
Gray
N
-200 to +1300°C
-328 to +2372°F
0.20% +1.5°C
0.20% +2.5°F
Orange
mV
-5.00 to 56.00
0.15% + 1LSD
——
RTD
(385)
-200 to +600°C
-328 to +1100°F
0.10% +0.5°C
0.10% +0.9°F
——
RTD
(392)
-160 to +600°C
-256 to +1100°F
0.10% + 0.5°C
0.10% + 0.9°F
——
Ohms
1.0 to 320.0
0.15% + 1LSD
——
74