Series 40T/40M Digital Temperature Switch
Specifications - Installation and Operating Instructions
Bulletin T-40T
The
Series 40T/40M Digital Temperature Switch
accepts a variety of inputs to allow
temperature measurements and set points up to 1999°F (1300°C). Observing the
current status of the control is made easier with the 3-1/2 digit, multi-color LED display
that has alarm, defrost and output symbols. For added versatility, the temperature
units can be field selected for °F or °C. For cooling applications, manual defrost mode
can be initiated by pushing a single button. A flashing alarm informs users when the
current temperature exceeds preset limits.
INSTALLATION
Note:
Unit must be mounted away from vibration, impacts, water and corrosive gases.
• Cut hole in panel 71 x 29 mm (2.80 x 1.14 in)
• Apply silicone around the perimeter of the hole to prevent leakage
• Insert unit into hole from the front side of the panel
• Slide the mounting bracket securely against the panel from the rear of the unit
• Wiring diagram is displayed on top of the control
ADJUSTING PARAMETER VALUES
In order to change the parameter values, follow the procedure below:
• Press UP ARROW and DOWN ARROW simultaneously for four seconds until PA is
displayed
• Press SET
• Use UP ARROW or DOWN ARROW to adjust value to -19
• Press SET
• Press UP ARROW and DOWN ARROW simultaneously for four seconds until SP is
displayed
• Use UP ARROW or DOWN ARROW to cycle through parameters
• Press SET to view value of parameter
• Use UP ARROW or DOWN ARROW to adjust value of parameter
• Press SET to store value
• Press UP ARROW and DOWN ARROW simultaneously for four seconds to exit
menu
SPECIFICATIONS
Range:
Current: -1999 to 1999; Voltage: -1999 to 1999; K T/C: -140 to
1999°F (-100 to 1300°C); J T/C: -140 to 1450°F (-100 to 800°C); RTD: -320 to
1200°F (-200 to 650°C); PTC: -58 to 300°F (-50 to 150°C); NTC: -40 to 230°F (-40
to 110°C); N. RTD: -110 to 570°F (-80 to 300°C).
Input:
RTD thermocouple, thermistor current and voltage (depending on model).
Output:
16A @ 250 VAC SPDT relay (max current allowed is 10A).
Control Type:
On/off.
Power Requirements:
12-24 VAC/VDC, 115 VAC or 230 VAC (depending on
model).
Accuracy:
±1% FS.
Display:
3-1/2 digit red display.
Resolution:
0.1°C.
Memory Backup:
Non-volatile memory.
Temperature Limits:
32 to 131°F (0 to 55°C).
Weight:
2.3 oz (65 g).
Front Panel Rating:
IP 65.
Agency Approvals:
UL, CE.
DWYER INSTRUMENTS, INC.
P.O. BOX 373 • MICHIGAN CITY, INDIANA 46360, U.S.A.
Phone: 219-879-8000
Fax: 219-872-9057
www.dwyer-inst.com
e-mail: [email protected]
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