User Manual

10
3. USE IN STAND-ALONE MODE
 The instruments can operate in two modes:
 the stand-alone mode described in this section,
 the record mode, in which they are controlled by a PC. This mode is described in the next section.
3.1. TEMPERATURE MEASUREMENT
 Connect the sensor(s) to the instrument.
TYPE
HOLD
MAX
MIN
MEM
REC
°C / ° F
THERMOCOUPLE
THERMOMETER
C.A 1822
TYPE
HOLD
°C / ° F
MAX
MIN
MEM
REC
C.A 1823
RTD PROBE
THERMOMETER
On the C.A 1821, connect one thermocouple.
On the C.A 1822, connect one or two thermocouples of
the same type.
On the C.A 1823, connect one PT100 or PT1000 probe.
Make sure that the sensors are connected with
the correct polarity.
For the C.A 1821 and 1822:
The pins of the male connectors of the thermocouples
are made of compensated materials that while different
from those of the thermocouple provide the same e.m.f.
in the temperature range of use.
A temperature measurement on the terminals ensures
automatic cold junction compensation.
 Long-press the key to switch the instrument on.
The instrument displays the time, then the measurement.
The time is set using the Data Logger Transfer software
(see §4).
 For the C.A 1821 and 1822, select the type of sensor
by long presses on the TYPE key.
For the C.A 1821 and 1822, the thermocouple can be a
type K, J, T, E, N, R, or S.
For the C.A 1823, the type of probe is detected auto-
matically.
T2
T1
K
T1
PT100