4
Sensor and Control Type Selection
Switches
Set the Chromalox 2110 controller’s configuration via
mechanical dip switches, located on the bottom of
the unit. Factory settings are J, TC, °F, and PI Control.
Switches are easier to set before mounting.
To change the switch settings, first disconnect all wir-
ing and power from the unit. Adjust switch settings as
follows:
Switch
Function
Setting
Options
Factory
Setting
A
Thermocouple
J or K
J
B
Input Type
TC or RTD
TC
C
Temperature Units
°F or °C
°F
D
Control Type
ON-OFF
or PI
PI
If input type is thermocouple, switch A selects either
thermocouple type
J or K.
Switch B selects input type
thermocouple or RTD
(resistance temperature detector). Note: If RTD is se-
lected, switch A is ignored.
Switch C selects temperature units
°F or °C.
Switch D selects either
PI (Proportional-Integral) or
ON-OFF control.
Figure 3.1
Default Dip Switch Settings
J
RTD
˚C
ONOF
K
TC
˚F
PI
J
RTD
˚C
ONOF
K
TC
˚F
PI
Mounting
Two mounting collars securely hold the 2110 controller
in the mounting hole. Remove these mounting collars
before installation.
Removing Mounting Collars
1. To remove the rear collar, press the sides of the col-
lar. This releases holding tabs on the top and bot-
tom of the collar.
2. Slide the collar off the back of the unit.
3. Slide the front collar off the back of the unit.
Figure 3.2
Removing Mounting Collars
Holding
Tabs
Front Collar
Rear Collar
Press In
Press In
3. Installation and Wiring