Dwyer 40M User Manual
DISPLAYING ROOM TEMPERATURE
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If the P5 parameter is set to display the temperature set point, the probe
temperature can be displayed by pressing the DOWN ARROW key for two
seconds until Pb1 is displayed. Next, hit the SET key. To return to the
normal display, press SET key.
MANUAL DEFROST ACTIVATION/DEACTIVATION
To manually activate the defrost cycle, press the UP ARROW key for four
seconds. This feature is disabled during heating operation.
PARAMETER LOCK OUT ACTIVATION/DEACTIVATION
The key pad lock out can be activated/deactivated by pressing the SET
and DOWN ARROW keys simultaneously for two seconds. The display will
flash Loc or UnL to signify the change in states.
ALARM BUZZER RESET
The audible alarm can be silenced by pressing any key.
RESTORING FACTORY DEFAULT SETTINGS
Factory settings can be restored by following the below procedure:
• Pressing the UP ARROW and DOWN ARROW keys for four seconds
until PA is displayed
• Press the SET key
• Press the UP ARROW or DOWN ARROW to adjust the value to 743
• Press SET key
• Pressing the UP ARROW and DOWN ARROW keys for four seconds
until dEF is displayed
• Press SET key
• Press the UP ARROW or DOWN ARROW to adjust the value to 149
• Press SET key
• Cycle the power after the flashing dEF goes away
©Copyright 2013 Dwyer Instruments, Inc. Printed in U.S.A. 5/13 FR# R5-443741-00 Rev. 4
Programming Device with Configuration Key
The Model 40X-K is not battery powered and requires that the device being
programmed be powered. If a power source is not available, a 40X-PS
power supply must be installed into the port on the edge of the key.
Copying Parameters to Configuration Key
1. Cut off power to the temperature switch
2. Connect the key to the temperature switch
3. Turn on power to the temperature switch or connect the power supply
to the key (LED on key will be green and the temperature switch will flash
“CIn”)
4. Press and hold the SET button on the temperature switch for 4 seconds
(display will flash “St”)
5. Release the SET button on the temperature switch, the press and hold
the SET button again for 4 seconds. (“St” on display will stop flashing
and the LED on the key will turn red)
6. Do not disconnect the key while the LED is red, as it is copying the
parameters
7. After LED on key returns to green, it is okay to disconnect the key. (If
using 40X-PS power supply, disconnect the power supply before
disconnecting the key)
Copying Parameters to Temperature Switch
1. Cut off power to the temperature switch
2. Connect the key to the temperature switch
3. Turn on power to the temperature switch or connect the power supply
to the key (LED on key will be green and the temperature switch will
read “CIn”)
4. Press and hold the button on the configuration key
5. After one second release the button on the key. Parameters will be
copied from the key to the temperature switch. (LED will turn red)
6. The display on the temperature switch will read “PrG” and the LED will
turn green once the temperature switch has been programmed
successfully.
7. Do not disconnect the key while the LED is red, as it is copying the
parameters
8. After LED on key returns to green, it is ok to disconnect the key. (If using
40X-PS power supply, disconnect the power supply before disconnecting
the key)
DISPLAY MESSAGES
Out 1 solidly lit
Out 1 flashing
°C
°F
Loc
Pr1
MAINTENANCE, CLEANING AND REPAIR
After final installation of the unit no routine maintenance is required. Clean
the surface of the display controller with a soft and damp cloth. Never use
abrasive detergents, petrol, alcohol or solvents. A periodic check of the
system calibration is recommended. The Series 40T/40M is not field
serviceable and should be returned if repair is needed (field repair should
not be attempted and may void warranty). Be sure to include a brief
description of the problem plus any relevant application notes. Contact
customer service to receive a return goods authorization number before
shipping.
Output 1 is active
Either modification of set point or call for load during
load protection (C1 or C2)
Defrost cycle is active
Alarm condition is present
Temperature is measured in °C
Temperature is measured in °F
Key pad is locked
Probe 1 error
Series 40T/40M Digital Temperature Switch
Specifications - Installation and Operating Instructions
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. When programming multiple units, a
programming key is available to reduce set up time.
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
ulletin T-40T
B
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 to 24 VAC/VDC, 115 VAC or 230 VAC
(depending on model).
Accuracy: ±1% F.S.
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.
Phone: 219/879-8000 www.dwyer-inst.com
P.O. BOX 373 • MICHIGAN CITY, INDIANA 46360, U.S.A. Fax: 219/872-9057 e-mail: info@dwyer-inst.com
DWYER INSTRUMENTS, INC.
Phone: 219/879-8000 www.dwyer-inst.com
P.O. BOX 373 • MICHIGAN CITY, INDIANA 46360, U.S.A. Fax: 219/872-9057 e-mail: info@dwyer-inst.com
WIRING
Avoid installing the temperature probe cables in close proximity of any
power cables. If the length of the probe cables is longer than 100 meters,
a recalibration adjustment may be made using the CA1 parameter.
PARAMETER LIST
Parameter
SP
CA1
P0
P1
P2
P3
P4
P5
r0
r1
r2
r3
r5
C1
C2
C3
C4
C5
d0
d3
d4
d5
d6
A1
A2
A3
A4
A5
A6
A7
E9
Description
Set point
Ambient probe adjustment
Type of input probe
Decimal point position
Display units
Minimum process input value
Maximum process input value
Value displayed during normal operation
Set point differential
Minimum set point value
Maximum set point value
Set point locked
Cooling or heating
Minimum time between compressor starts
Minimum compressor stoppage time
Minimum on time of compressor
Off time of fault cycle
On time of fault cycle
Interval between defrost
Duration of defrost cycle
Defrost on power up
Defrost delay upon power up
Display during defrost cycle
Alarm set point 1
Alarm delay for A1
Alarm 1 type
Alarm delay upon set point modification
Alarm set point 2
Alarm delay for A2
Alarm 2 type
Reserved for future use
Units
Degrees
Degrees
Option
Option
Option
Counts
Counts
Option
Degrees
Degrees
Degrees
Option
Option
Minutes
Minutes
Seconds
Minutes
Minutes
Hours
Minutes
Option
Minutes
Option
Degrees
Minutes
Option
Minutes
Degrees
Minutes
Option
None
Range
r1 to r2
-25 to 25
0 to 13
0 or 1
0 or 1
-999 to 1999
-999 to 1999
0 or 1
0.1 to 99.0
-199.0 to r2
r1 to 1999
0 or 1
0 or 1
0 to 240
0 to 240
0 to 240
0 to 240
0 to 240
0 to 99
0 to 99
0 or 1
0 to 99
0 or 1
-199 to 1999
0 to 240
0 to 4
0 to 240
-199 to 1999
0 to 240
0 to 4
None
Factory Setting
0.0
0.0
0
1
0
-20
80
0
2.0
0.0
350.0
0
1
0
0
0
10
10
8
0
1
0
1
0.0
0
0
0
0.0
0
0
None
PARAMETER DESCRIPTION
SP Sets ambient temperature set point between r1 and r2
CA1 Ambient probe calibration adjustment
P0 Type of input probe
40T
0 = J type thermocouple
1 = K type thermocouple
2 = 3 wire Pt100 RTD
3 = 2 wire Pt100 RTD
P1 Position of decimal place
P2 Display engineering units
0 = °C
1 = °F
2 = No units
P3 Minimum value for process input
P4 Maximum value for process input
P5 Value shown during normal operation
0 = Probe temperature
1 = Set point
r0 Set point differential or hysteresis
r1 Minimum value for set point
r2 Maximum value for set point
r3 Set point lock out
0 = Unlocked
1 = Locked
r5 Selection of heating/cooling operation
0 = Cooling
1 = Heating
C1 Minimum time between compressor starts
C2 Minimum time compressor must remain off before being restarted
C3 Minimum time compressor must remain on after being started
C4 During probe error, time compressor is off
C5 During probe error, time compressor is on
d0 Interval of time between defrost cycles (if 0, defrost will never be activated)
d3 Duration of defrost cycle
d4 Start defrost cycle upon power up
0 = No
1 = Yes
d5 Defrost delay time upon power up (d4 must be 1)
d6 Temperature shown during defrost
0 = Display probe temperature
1 = Display probe temperature up to (set point + r0) if probe temperature is below (set point + r0) at activation of
defrost cycle. Display probe temperature if the probe temperature is above (set point + r0) at activation of defrost cycle.
A1 Alarm 1 temperature set point
A2 Alarm 1 not activated unless temperature remains in alarm state for this time
A3 Alarm 1 type
0 = Alarm disabled
1 = Absolute low alarm (A1)
2 = Absolute high alarm (A1)
3 = Deviation low alarm (SP - A1)
4 = Deviation high alarm (SP + A1)
A4 Temperature alarms not activated for this time after modifications to set point
A5 Alarm 2 temperature set point
A6 Alarm 2 not activated unless temperature remains in alarm state for this time
A7 Alarm 2 type
0 = Alarm disabled
1 = Absolute low alarm (A1)
2 = Absolute high alarm (A1)
3 = Deviation low alarm (SP - A1)
4 = Deviation high alarm (SP + A1)
E9 Reserved
40M
0 = PTC
1 = NTC
2 = J Type Thermocouple
3 = K Type Thermocouple
4 = 3 wires Pt 100
5 = 2 wires Pt 100
6 = 3 wires Pt 1000
7 = 2 wires Pt 1000
8 = 4-20 mA
9 = 0-20 mA
10 = 2-10 V
11 = 0-10 V
12 = 3 wires Ni 120
13 = 2 wires Ni 120
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