Page 2
DIAL SWITCH
SOURCE:
Instantly output two preset thermocouple
temperatures by moving the DIAL switch to
the
“LO”
position or
“HI”
position. For fast three
point checks select the
“DIAL”
position. The
O M E G A C L 5 4 0 A w i l l r e m e m b e r t h e l a s t
“DIAL”
value, even with the power off.
These values can easily be changed to suit the
calibration requirements. The temperatures stored in
the HI and LO positions are also used for Auto
Stepping.
SOURCE/OFF/READ Switch
Select “
SOURCE
” to output in °C, °F, or millivolts.
Select “
READ
” to read a thermocouple sensor
or millivolts.
DIAL KNOB
SOURCE: Turn the knob to adjust the output
level. Turn clockwise to increase the output,
counter clockwise to decrease the output in 0.1°
steps at a time. Push down and turn the
DIAL knob for faster dialing.
Press and hold the knob for two seconds to store
desired Check HI/LO points in SOURCE mode.
Double click the knob to get into the OMEGA
CL540A Configuration Mode. Use
configuration to select °C or °F, T/C Type
CL540AZ Only) and Auto Off On/Off.
CHANGING BATTERIES
Low battery is indicated by
“BAT”
on the display.
Approximately one to four hours of typical
operation remain before the OMEGA CL450A
will automatically turn off. To change the batteries;
remove the optional rubber boot, remove the
battery door from the back of the unit by sliding
the door downward. This allows access to the
battery compartment. Replace with four (4) “AA”
1.5V batteries being careful to check the polarity.
Replace the battery door and replace the boot. All
stored configuration options (T/C Type,
Memories, etc., are reset to factory settings
when the batteries are removed.
Note:
Alkaline batteries are supplied and
recommended for maximum battery life and
performance.
Basic Operation
HI
TYPE K °C
HI
TYPE K °
C
OFF
Push & Hold
to Store
Push & Turn
for
Fast Dialing
Double Click
for Options
THERMOCOUPLE SOURCE
SOURCE
HI
SET
LO
322.1
(Optional Boot Shown)
Page 7
T/C
Type
Degrees C
Range
Accuracy
Degrees F
Range
Accuracy
T/C
Material
ISA/ANSI
Color
N
-230.0 to -180.0
±1.2°
-382.0 to -292.0
±2.2°
+Nicrosil
-Nisil
Jacket
Orange
Red
Orange
-180.0 to -50.0
±0.7°
-292.0 to -58.0
±1.3°
-50.0 to 1100.0
±0.4°
-58.0 to 2012.0
±0.7°
1100.0 to 1300.0
±0.5°
2012.0 to 2372.0
±0.9°
G
(W)
100.0 to 150.0
±1.4°
212.0 to 302.0
±2.5°
+Tungsten
-W26/Re
Jacket
White
Red
White/Blue
150.0 to 400.0
±1.0°
302.0 to 752.0
±1.8°
400.0 to 1700.0
±0.6°
752.0 to 3092.0
±1.1°
1700.0 to 2320.0
±0.9°
3092.0 to 4208.0
±1.6°
C
(W5)
-1.1 to 1500
±0.7°
30.0 to 2372.0
±1.3°
+W5/Re
-W26/Re
Jacket
White
Red
White/Red
1500 to 1900
±0.8°
2372.0 to 3452.0
±1.4°
1900.0 to 2100.0
±0.9°
3452.0 to 3812.0
±1.6°
2100.0 to 2320.0
±1.1°
3812.0 to 4208.0
±2.0°
D
-1.0 to 50.0
±0.8°
30.0 to 122.0
±1.4°
+W3/Re
-W25/Re
Jacket
White
Red
White/Yellow
50.0 to 1400.0
±0.6°
122.0 to 2552.0
±1.3°
1400.0 to 1800.0
±0.7°
2552.0 to 3272.0
±1.3°
1800.0 to 2320.0
±1.1°
3272.0 to 4208.0
±2.0°
P
Platinel®
-217.8 to -150.0
±0.8°
-360.0 to -238.0
±1.4°
+Pd55/Pt31/Au14
-Au65/Pd35
Jacket
Yellow
Red
Black
-150.0 to -50.0
±0.6°
-238.0 to -58.0
±1.1°
-50.0 to 1000.0
±0.4°
-58.0 to 1832.0
±0.7°
1000.0 to 1395.0
±0.5°
1832.0 to 2543.0
±0.9°
DIN Colors
L
J-DIN
-200.0 to -50.0
±0.4°
-328.0 to -58.0
±0.7°
+Iron
-Connstantan
Jacket
Red
Blue
Blue
-50.0 to 500.0
±0.3°
-58.0 to 932.0
±0.5°
500.0 to 750.0
±0.4°
932.0 to 1382.0
±0.7°
U
T-DIN
-200.0 to -75.0
±0.5°
-328.0 to -103.0
±0.9°
+Copper
-Constantan
Jacket
Red
Brown
Brown
-75.0 to 100.0
±0.4°
-103.0 to 212.0
±0.7°
100.0 to 600.0
±0.3°
212.0 to 1112.0
±0.5°
Ranges & Accuracies
(Cold Junction Accuracy not included)
CL510AZ
J
•
T
•
E
•
K
•
R
•
S
•
B
•
N
•
G
•
C
•
D
•
L
•
U
•
P
•
mV
TYPES
