caron 7340-25, Operation Manual

Page: 22 / 92

7340_7350-25-33 Series Operations Manual Rev J 3-31-21 Page 22 of 92
Parameter Voltage Current Corresponding Value
Temperature 0 – 5 V 4-20 mA -50 – 100 °C (adjustable*)
Humidity 0 – 5 V 4-20 mA 0 – 100 %rh
CO
2
0 – 5 V 4-20 mA 0 – 20 %CO
2
*Default range is -50C to +100C. Temperature scale low range is adjustable from -50C
to 0C. Temperature scale high range is adjustable from 1C to 100C.
Connect shielded wires to the appropriate signal terminals: I(+) for current (mA)
or V(+)
for voltage (DC). For both current and voltage outputs, COM(-) is common terminal.
Installing Drain Water Pump (PUMP301)
In applications where a floor drain is not available and a CARON water recycling
system is not being used, a drain pump can be purchased to pump any excess
condensate from the chamber to a local sink or drain. The pump is located near the
middle of the back of the chamber. Connect the supplied tubing from the pump to the
sink / drain. The tubing may be run vertically into a ceiling but should not exceed 15
feet height. The pump is equipped with a small reservoir on the bottom of the pump
with an internal level switch that will automatically turn the pump
ON when it is full to
drain the water out of the reservoir and into a floor or sink drain.
Pump Outlet
to Sink or Floor
Drain
Pump Inlet
from Chamber
Drain
Reservoir with
Internal Level
Switch