Perma Pure Baldwin-Series M225 - Manual (Page 16)

Section J: “New Jersey” Thermocouple Option 16
J: “N
EW
J
ERSEY
” T
HERMOCOUPLE
O
PTION
Some air quality management districts (e.g., those in New Jersey and Southern
California) require temperature measurement of the gas stream at the outlet of the
last heat exchanger on the cooler. Baldwin offers a 1/32-inch diameter hypodermic-
style type K thermocouple that can be inserted into a special heat exchanger (i.e., it
has a small port for insertion of the thermocouple) so the actual sample dew point
temperature can be measured. This is sometimes referred to as the New Jersey
thermocouple outlet temperature option.
The second 5” heat exchanger on the M225 can be upgraded to include the New
Jersey thermocouple option. This heat exchanger will have a New Jersey
thermocouple to sense the temperature inside the heat exchanger (upgrade option:
4C-NJ/K-5). In the part number, the “NJ” identifies the upgrade for a NJ type
thermocouple. The “K” identifies the thermocouple itself as a type “K” thermocouple.
The “-5” is the height of the heat exchangers.
In addition, Perma Pure offers an optional temperature transmitter board for signal or
voltage temperature output. This board has one input and two outputs per channel.
The input is for the type K thermocouple. The first output is an analog voltage output
that can be configured for either 0-2.5vdc or 0-10vdc for a 0
° C (32 ° F) to 25 ° C (77 ° F)
temperature range. The second output is a 4-20mA for the same temperature
range. The M225 utilizes a single-channel NJ thermocouple transmitter board
(3CCB-012).
Model M225 New Jersey Thermocouple Option
Part No. Description
4C-NJ/K-5 Heat exchanger upgrade to include NJ thermocouple port
3CXS-002 Heat exchanger, 5” SS w/ NJ thermocouple port
3CXD-002 Heat exchanger, 5” Durinert ® w/ NJ thermocouple port
3CXK-002 Heat exchanger, 5” Kynar ® w/ NJ thermocouple port
3CCB-012 Temperature transmitter board, single stream
3KTC-001 Thermocouple, Type K, replacement kit