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General Description
The TDD series digital temperature switch
integrates the latest solid state sensing
technology into a very versatile, simple to
operate package. Programming features
include setpoint, reset point, window
mode, dampening, switch logic and user
selectable lockout code. The digital
semiconductor sensing system and solid
state transistor switch ensure an
exceptionally long cycle life with virtually
no calibration drift. These features along
with the compact, robust stainless steel
package make the TDD an ideal choice for
OEM or industrial applications.
The TDD is available with the controller
mounted directly onto the sensing probe
or separated for mounting the probe
remotely from the controller. Various
probe lengths are available. The remote
probe version has a smooth shank (no
fitting) allowing the user to adjust the
probe insertion depth by installing with a
compression fitting sold as an accessory
item.
Specifications
Switching Range: Per-ordering Code
Display Type: 3-digit LED
Display
Resolution: ±0.5° between -10°F
and +100°F,
±1°F above 100°F
Switch Status
Indicator: Single red LED,
on when temperature
is above
setpoint
Accuracy:
14°F to 185°F: ±1°F
185 to 250°F: ±3.6°F
-58°F to 14°F: ±3.6°F
Max. Pressure: 1150 PSIG
Ambient Temp.
Range: -4°F to 120°F
Sensor Element: Semi-conductor
Housing and Probe
Material: 316L Stainless
Steel
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Electrical Data
Power: 24 VDC ±20%
Switch Type: Transistor NPN or
PNP based on model
number
Switch Rating: 300 mA Max. short
circuit protected
Switch Logic: User programmable
N/O or N/C
Sample Rate: 0.5 Sec./sample
Dampening: Programmable
averaging over 2, 4,
8, 16, 32, or 64
samples
Electrical
Connection: 4-Pin Micro-DC
male plug or PVC
jacketed cable
Electrical
Protection: NEMA 4/IP 65
Cable for Remote
Probe: Teflon 8ft. std.
Programmable Functions
- Lockout Code
- Setpoint
- Switching Hysteresis
- Window Switching
- Switch Logic
- Dampening
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Ordering Information
Dimensions
Electrical Connection
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