P-31
1
⁄16 DIN Temperature Controllers
The CN350, CN360, and CN370
Series controllers are economical
and easy to use. Models are
available with digital, deviation,
or non-indicating display, for
J, K, R, and S thermocouples or
100 Ω platinum RTD input. The
small 48 mm (1.88") square face,
45 mm (1.77") square cutout
(1⁄16 DIN), and short 90 mm (3.54")
CN370 Series
Starts at
$
199
CN360 Series
Starts at
$
159
CN350 Series
Starts at
$
139
⻬ Economical, Easy-to-Use
⻬1⁄16 DIN Panel Cutout
⻬ Input Types:
J, K, R, S Thermocouples
and 100 Ω Platinum RTD
⻬ Fixed Proportional Band
(4%) with Manual Reset
⻬ Fixed Cycle Time:
30 s for Mechanical
Relay and 3 s for
DC Solid State Output
⻬ User Convertible for
Proportional or
On/Off Control
Specifications
Accuracy:
Thermocouple Input:
±1.5% FS + 1 digit
RTD Input: ±1.0% + 1 digit
Resolution: 1°C or °F
(P2CX range: 0.1°C)
Output Types: SPDT mechanical relay,
240 Vac, 2.5 A resistive load
(1 A inductive load) solid state voltage
driver, 12 Vdc, 20 mA max—reverse
action (NO) for heating
Power Supply: 115/230 Vac ±10%,
50/60 Hz; optional 24 Vdc
(relay models only)
Input:
3-Wire RTD (Pt100):
0.00385 Ω/Ω/°C excitation, 2 mA
lead wire resistance, 2 Ω max
per wire (approximately 190' of
20-gage copper wire)
Thermocouple J, K, R*, S*
(*Non-Indicating Models Only):
Input resistance, 200 kΩ; lead
wire resistance, 100 Ω max;
up-scale protection circuit standard
Control Mode: Proportional band, 4%
FS fixed; manual reset, adjustable from
front face on/off; deadband/hysteresis,
0.3% FS fixed
KTSS-316G-6, $19, molded transition
joint thermocouple probe.
See page A-74.
Shown larger than
actual size.
depth behind the panel helps
conserve space and cut installation
costs. All models have a digital
thumbwheel for adjusting the setpoint.
The CN370 Series models provide
continuous digital display of the
process temperature. The CN360
Series models indicate whether the
process temperature is within ±1.5%
FS of the setpoint or above or below
setpoint. The CN350 Series models
are non-indicating.
These controllers are time
proportional with manual reset,
and can be converted to on/off
control by changing internal
jumpers. The proportional band
is fixed at 4%.
Two types of outputs are available.
A 2.5 A (SPDT) mechanical relay is
for use with systems that can use a
30-second cycle time. With
an external solid state relay, loads
to 5 A can be accommodated.
For systems that require a faster
cycle time, the DC solid state driver
output should be used. This has
a cycle time of approximately
3 seconds and can control high
AC loads by using a DC-controlled
solid state relay.