Tempco Instruction Manual
1/16 DIN Solid State Temperature Controller–
Relay Output–Solid State Output–For Heating
Model Numbers: TEC-901, TEC-902, TEC-905
Temperature controls in this series are designed to fit panel cutouts that are 1-25/32" (45mm)
square. 4-1/8" minimum depth is required to provide clearance for rear terminal connections. All
models have the following specifications in common:
Input
Thermocouple (T/C) Type K, J. See Control label.
RTD Three-wire PT 100 ohm DIN or JIS.
Cold junction compensation Automatic
Input break protection Built-in, upscale on open sensor and output off.
Input impedance 10M ohm
Common mode rejection (CMR) CMRR 120dB, min.
Normal mode rejection (NMR) NMRR 60dB, min. (60Hz)
Control Output
Relay—heating SPDT relay, 3 amps max resistive load at 120V/240VAC, 24VDC.
Optional: 3–32VDC For control of solid state relay.
Control Modes
On-Off Hysteresis: 5.0% of scale symmetrically above and below the set point.
Proportional Proportional Band fixed at 5% of scale. 20 seconds standard relay cycle time.
1 second for SSR controls. TEC-905 has manual reset of 4% of scale,
adjustable externally.
Indication
Output Red LED, heater on/green LED, heater off.
Set Point
Resolution
TEC-901, 902:
0.2% of SPAN.
TEC-905:
least significant digit.
Accuracy
TEC-901, 902:
0.2% of SPAN.
TEC-905:
least significant digit.
Power
Rating TEC-901, 902: 110/220VAC ±15% NOT field selectable, 50/60Hz.
TEC-905: 90–264VAC. 24V AC/DC models can be special ordered.
Consumption Less than 3VA.
Environmental and Physical
Operating Temperature 10 to 125°F (-12 to 52°C)
Humidity 0–90% RH (non-condensing)
Insulation 20M ohm min. (5000VDC)
Breakdown 2000VAC, 50/60Hz, 1 minute
Vibration 10–55Hz, amplitude 1.0mm
Shock 660ft/s
2
(20g)
Weight 9oz (250g)
Dimensions
1-7/8" (48mm) x 1-7/85"(48mm) x 3-3/4"(94mm) H x W x D
Depth behind panel: 3-3/8" (86mm).
Panel cutout 1-25/32" square (45 mm square)
DIN case Plastic full plug-in construction with screw terminals on rear and adjustable
brackets for panel mounting.
Revision 11/2010