SRS Labs CTC100, User Manual

Page: 15 / 177

Introduction 3
CTC100 Programmable Temperature Controller
The CTC100 has four temperature sensor inputs, two powered heater outputs, four ±10V
analog I/O channels, four 5A relays, and eight digital I/O lines.
Temperature sensor inputs
The CTC100 has four multi-range inputs, each of which can read resistive sensors having
resistances between 1 and 2.5 M , and diode sensors having voltage drops of up to 2.5V.
Standard calibration curves are included for the sensors shown in the following table. The
if the sensor is outside this
range, no reading appears. It may be possible to increase the range by uploading a custom
calibration curve.
S ensor
cla ss
M a nufa cturer
Ca libra tion
type
Ra ng e,
K
Diode
Scientific Instruments
Si410 1.0 450
Si430 1.0 400
Si440 1.0 500
LakeShore; Omega
DT-470 (=CY7) 1.4 475
DT-670 (=CY670) 1.4 500
Cryo-Con
S700 1.5 475
S800 1.4 385
S900 1.5 500
Ruthenium
oxide
LakeShore
RX-102A 0.050 40
RX-103A 1.2 40
RX-202A 0.050 40
Scientific Instruments RO600 1.0 300
Cryo-Con
R400 2.0 273
R500 0.050 20
RTD All
IEC751 (DIN43760) 48.15 1173.15
US 48.15 1173.15
Thermistor
Measurement
Specialties,
Inc.
(formerly YSI);
Omega
100 193.15 373.15
300 193.15 373.15
1000 193.15 373.15
2252 193.15 523.15
3000 193.15 523.15
5000 193.15 523.15
6000 193.15 523.15
10000 type B (32.66 k

at 0°C) 193.15 523.15
10000 type H (29.49 k

at 0°C) 193.15 523.15
30 k 233.15 523.15
100 k 233.15 423.15
300 k 298.15 423.15
1 M 298.15 423.15
Other kinds of resistive and diode sensors can be used, but require custom calibration curves.
For example, rhodium-iron, germanium, and carbon-glass sensors have too much sensor-to-sensor
variability to use a standard curve, and therefore must be individually calibrated.