Omega Products CN3261-JC User Manual

F
M
APPROVED
High-Limit Temperature Controller
CN3261-JF, $160, shown actual size.
CN3261 Series
$
160
All Models
Protects Processes
and Equipment From Excessive Temperatures
DIN Rail and Sub-Panel
Mounting
J, K Thermocouple
or RTD Input
Terminals Provided for
Remote Pushbutton Reset
Latching, Normally
Energized, 3 A Relay Output
The CN3261 Series high-limit controller protects expensive heaters and sensitive materials from damaging due to temperature conditions. Units are designed for industrial and commercial applications that require high­temperature protection. The CN3261 features a Form “C” latching, manually resettable relay output that de-energizes whenever the sensed temperature exceeds the setpoint temperature.Two methods are provided to reset an alarm condition, 1, the limit alarm has a reset pushbutton on the unit and 2, reset terminals are provided for resetting the alarm from a remote pushbutton. The DIN rail mounting feature allows quick installation without drilling or extra hardware. Slots are also provided for direct panel mounting.
Specifications
Sensor Inputs:
J Thermocouple: 0 to 750°C
(0 to 1400°F) K Thermocouple: -18 to 1260°C (0 to 2300°F) RTD: -18 to 454°C (0 to 850°F) 2-wire input
Control Output: SPDT relay rated
3.8 A resistance and 1.5 A pilot duty 120 Vac, 100,000 cycles Control Mode: Latching with manual reset or power-off
Reset Function: Integral reset switch standard; terminals available for optional remote reset switch
Set Point Adjustment:
Local SP dial adjustment Control Stability: Typically less than ±5µV/°F ambient and 0.1% of SPAN/% rated line voltage
Set Point Accuracy:
±3% FS maximum at 25°C and rated line voltage Sensor Break Protection: Contacts 4 and 5 open for thermocouple or RTD break
Ambient Operating Temperature:
0 to 60°C (32 to 140°F)
Noise Rejection:
Common Mode Rejection: 60 db Series Mode Rejection: 120 db
Power Input:
120 Vac or optional 24 Vac ±15%, 50/60 Hz, 3 VA max standard
Enclosure Material: Noryl, black color Field Terminations: Screw terminals
with wire clamping plates and touch-safe shield Mounting: 35 mm DIN rail or surface mounting Mounting Screw Holes: Upper left, lower right (2.5" c-c W and 3.0 c-c H) for #6 screws Dimensions: 76 H x 84 W x 64 mm D (3.0 x 3.3 x 2.5") [overall 84 mm H (3.31") for mounting]
MOST POPULAR
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To Order (Specify Model Number)
Model No. Price Description CN3261-JF $
CN3261-KF
CN3261-RTDF CN3261-JC
CN3261-JF-LV
Comes complete with operator’s manual. Ordering Examples: CN3261-RTDF, limit controller with -18 to 454°C (0 to 850°F) RTD input, $160.
OCW-3, OMEGACARESMextends standard 1-year warranty to a total of 4 years ($40), $160 + 40 = $200.
CN3261-JF, limit controller, J thermocouple, $160.
P-100
160
Limit controller, J thermocouple -18 to 760°C (0 to 1400°F)
160
Limit controller, K thermocouple -18 to 1260°C (0 to 2300°F)
160
Limit controller, RTD -18 to 454°C (0 to 850°F)
160
Limit controller, J thermocouple 0 to 750°C (0 to 1400°F)
160
Limit controller, J thermocouple 0 to 750°C (0 to 1400°F), low power
P
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