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8 K400 Issue No. 1
• Connection of a 2-wire T/I transmitter
(with 24 V dc auxiliary excitation)
• General
The temperature probes to be tested fit into an appropriate size reduction insert
located in the 30 mm diameter hole of the dry well. The dry well can be heated by
either cartridge heaters (DBC 650) or Peltier cells (DBC 150). A fan system fitted
on the bottom of the instrument reduces the temperature during cooling operations.
Operating procedure
The DBC Series can be used to carry out comparison test using a variety of
methods:
Reading of temperature calibration with the internal regulation probe
The generated temperature
is considered as reference
value and is shown on the
DBC display: this
temperature is measured
with the standard internal
probe.
max 30V
CAT I
Ref RTD
0V
mA IN
V IN
35mA
max
24V Out
35mA max
X MTR
T
I
Internal Temperature
Probe
Dry Well
Unit under Test