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q
HI/SET/LO™ SWITCH
SOURCE: Instantly output two preset RTD
temperatures by moving the HI/SET/LO switch to the
“LO” position or “HI” position. For fast three point
checks select the
“DIAL” position. The CL514-
PLUS will remember the last
“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.
READ: Slide the switch to the DIAL position. The
CL514-PLUS will display the current temperature from
the RTD sensor. Slide the switch to HI and the
highest temperature measured since turn-on or reset
will be displayed; slide the switch to LO and the
lowest temperature measured since turn-on or reset
will be displayed.
w
SOURCE/OFF/READ Switch
Select “
SOURCE” to output in °C, °F or ohms.
Select “
READ” to read an RTD sensor or ohms.
e
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 knob
for faster dialing.
Press and hold the knob for two seconds to store
desired HI/SET/LO™ HI/LO points in SOURCE
mode.
Continue to press and hold the knob for
two more seconds to start the automatic
stepping.
READ: Press and hold to transfer the current
temperature into the HI/SET/LO™ HI/LO points.
This clears the HI/LO temperature readings
which will update as the temperature changes.
Double click the knob to get into the CL514-
PLUS menu. Use the menu to select RTD or
Ohms, °C or °F, 400Ω or 2000Ω, RTD Type,
Backlight On/Off, Step Size, Step Time and Auto
Off On/Off.
CHANGING BATTERIES
Low battery is indicated by a battery symbol on
the display. Approximately one to four hours of
typical operation remain before the CL514-PLUS
will automatically turn off. To change the batteries;
remove the 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 (RTD Type, HI/SET/
LO 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
3 2 2 - 1
THERMOCOUPLE
CALIBRATOR
J, T, E, K, mV
HI
Pt100
α
=385
AUTOMATED
RTD
CALIBRATOR
READ
SOURCE
HI
SET
LO
MAX
READ
MIN
OVERLOAD
Push & Hold
to
Store/Step
Push & Turn
for
Fast Dialing
Double Click
for Options
OFF
°C
3 2 1 4
100.0
+
-
-
+
