Dwyer | Series TST | Instruction manual | Dwyer Series TST Instruction Manual

Dwyer Series TST Instruction Manual
Bulletin T-TST
Series TST Digital Temperature Switch
®
Specifications - Installation and Operating Instructions
GASKET
3.110 [79.0]
AUX
2.440 [62.0]
1.440
[36.5]
SET
1.110
[28.3]
Panel cutout 2-51/64˝ x 1-9/64˝ (71 x 29 mm)
The Series TST Digital Temperature Switch is designed with many heating and
cooling applications in mind. It accepts either PTC or NTC temperature probe types
and features 23 parameters including set point, hysteresis, cycle time, and ambient
probe adjustment for precise control. Programming performed by either the front
keypad or the TS2-K programming key. Standard features include capacitive touch
buttons, Modbus® communication, temperature alarms with internal buzzer, and
password protected parameter settings.
MODEL CHART
Model
Supply Power
TST-011 115 VAC
TST-021 230 VAC
TST-031 12 VAC/VDC
TST-041 24 VAC/VDC
INSTALLATION
Note: Unit must be mounted away from vibration, impacts, water and corrosive gases.
• Cut hole in panel 2.80 x 1.14 inches (71 x 29 mm).
• Use the included gasket, or apply silicone around the parameter of the hole to
prevent leakage.
• Insert the unit into the hole in panel.
• Slide removable fitting clips onto unit from back until secure to panel.
• Wire the unit per the wiring diagram on the product label or by figures below. Avoid
installing temperature probe wiring in the proximity of power cables.
SPECIFICATIONS
Probe Range: PTC: -58 to 302°F (-50 to 150°C); NTC: -58 to 230°F (-50 to 110°C).
Input: PTC (1000 Ω @ 25°C) or NTC (10 KΩ @ 25°C) thermistor.
Output: SPDT relay rated 16 A @ 240 VAC resistive, 10 FLA, 60 LRA.
Horsepower Rating (HP): 1 HP.
Control Type: On/Off.
Power Requirements: 115 VAC, 230 VAC, 24 VAC/VDC, or 12 VAC/VDC.
Power Consumption: 4 VA @ 115/230 VAC; 1.5 VA @ 12/24 VAC/VDC.
Accuracy: ±1% FS.
Display: 3-digit, plus sign.
Resolution: 0.1°.
Memory Backup: Nonvolatile memory.
Ambient Temperature: 32 to 131°F (0 to 55°C).
Storage Temperature: -4 to 176°F (-20 to 80°C).
Weight: 115 and 230 V models: 7.2 oz (204 g); 12 and 24 V models: 4.8 oz (136 g).
Front Panel Rating: IP65.
Agency Approvals: CE, cURus.
TS2-K
Wiring Diagram
PROBE INPUT
Sd1
1
2
t
3
4
5
6
7
REL1
o
POWER
SUPPLY
OUTPUTS
TST-XX1
1 relay output
Modbus® is a registered trademark of Schneider Automation, Inc.
DWYER INSTRUMENTS, INC.
P.O. BOX 373 • MICHIGAN CITY, INDIANA 46360, U.S.A.
Phone: 219/879-8000
www.dwyer-inst.com
Fax: 219/872-9057
e-mail: info@dwyermail.com
List of Parameters
SP
r0
r1
r2
d0
d2
d8
c0
c1
c2
c3
A0
A1
A2
A7
P0
P1
P4
H0
H4
H5
H6
t0
Description
Set point
Differential or hysteresis
Lower limit for SP
Higher limit for SP
Control type
Defrosting duration
Defrosting interval time
Minimum stopping time
Cool cycle duration
ON time of fault cycle
OFF time of fault cycle
Alarm differential or hysteresis
Maximum alarm temperature
Minimum alarm temperature
Alarm time validation
Temperature Scale
Ambient Probe Adjustment
Decimal Point
Factory Settings
Address
Access code to parameters
Probe type
Maximum displayed temperature
Units
Degrees
Degrees
Degrees
Degrees
Option
Minutes
Hours
Minutes
Hours
Minutes
Minutes
Degrees
Degrees
Degrees
Minutes
Option
Degrees
Option
Option
Numeric
Numeric
Option
Degrees
Parameter Programming
Note: Set point is the only parameter accessible without access code.
Range
r1 to r2
1 to 20
-58 to r2
r1 to 302
Ht / Co
0 to 59
0 to 24
0 to 59
0 to 24
0 to 999
0 to 999
1 to 20
1 to 90
1 to 90
0 to 999
0°C / 0°F
-10 to 10
Yes or No
0
0 to 999
0 to 255
PTC or NTC
-58 to 302
Set Point
• Press SET. SP will appear on the display.
• Press SET again. The set point value is shown on the display and can be modified
with the UP and DOWN arrows.
• Press SET to confirm any new values.
• Press SET and DOWN simultaneously to quit programming or wait one minute for
the display to automatically exit programming mode.
Protected Parameters
• Press and hold SET for 8 seconds. The access code value 00 is shown on the
display.
• Using the UP and DOWN arrows, enter the access code (factory-set code is 00).
• Press SET to enter the code. If correct, the first parameter label will be shown on
the display (SP).
• Use the UP and DOWN arrows to move to desired parameter and SET to view
parameter value.
• While viewing a parameter value, use the UP and DOWN arrows to modify parameter
value. Use SET to enter value and exit parameter. Repeat until all necessary
parameters are modified.
• Press SET and DOWN simultaneously to quit programming or wait one minute to
automatically exit programming mode.
Parameter Descriptions
SP = Set Point. Temperature wished to regulate the machine. Can vary from r1 to r2.
r0 = Set Point Differential.
r1 = Lower Set Point Limit.
r2 = Upper Set Point Limit.
d0 = Control Type. Ht = Heating control; Co = Cooling control. Heating: If the
temperature is ≥ SP, then the load is disconnected. If the temperature is ≤ SP-r0,
then the load is connected. Cooling: If the temperature is ≤ SP, then the load is
disconnected. If the temperature is ≥ SP+r0, then the load is connected.
d2 = Defrost Duration. If d2 = 0, then defrosting will not start.
d8 = Defrost Period, in hours. If d8 = 0, then defrosting will not start.
c0 = Minimum Load Off Time.
c1 = Cool Cycle Duration.
c2 = ON Time of Fault Cycle. (See Fault Cycle).
c3 = OFF Time of Fault Cycle. (See Fault Cycle).
A0 = Alarm Differential.
A1 = High Alarm. If temperature is ≥ SP+A1, then High Alarm is ON. If temperature is
≤ SP+A1-A0, then High Alarm is OFF.
A2 = Low Alarm. If temperature is ≤ SP-A2, then Low Alarm is ON. If temperature is ≥
SP-A2+A0, then Low Alarm is OFF.
A7 = Alarm Delay. Delay time from when the alarm condition occurs until alarm is
activated, in minutes.
P0 = Temperature Scale, °C or °F.
P1 = Ambient Probe Adjustment. Probe reading offset correction, in degrees. If the
probe is not placed in the exact point to control, use a standard thermometer to offset
the measured temperature..
P4 = Decimal Point. Display decimal point in normal operation. Always present in
parameter menus.
H0 = Factory Settings. (See Resetting to Factory Defaults).
H4 = Device Network Address.
H5 = Parameters Access Code. Factory-set as 00.
H6 = Probe Type. PTC or NTC.
t0 = Temperature Display Limit. Maximum temperature shown on the display during
defrost, although the real temperature may be higher.
Resetting to Factory Defaults
Access parameter H0 as explained in Parameter Programming and choose
configuration 0. Press and hold SET for 2 seconds. The thermostat will reset and the
factory default values will be loaded.
Activating and Deactivating Manual Defrost Cycle
Press and hold the AUX button for 2 seconds to activate defrosting. Repeat this
process to stop the defrosting. If a cool cycle is activated, the defrosting is disabled.
Activating and Deactivating Cool Cycle
Press and hold the DOWN arrow for 8 seconds to activate a continuous cool cycle.
Repeat this process to stop the cool cycle. If defrosting is activated, the cool cycle is
disabled.
Fault Cycle
If the probe fails, the load is connected for the time set in c2 and then disconnected
for the time set in c3. In case of memory error, the load is connected for 5 minutes and
then disconnected for 5 minutes.
LED Indication and Display Messages
:
Indicates if the load is connected. If continuous cool cycle is being
performed, this LED flashes (90% ON, 10% OFF). If the unit is waiting the
stopping time value stored in c0 to start a cool cycle the LED flashes (10%
ON, 90% OFF).
:
Indicates if defrosting is active.
:
Indicates an active alarm. The LED will flash if the alarm is cleared, but
the alarm condition persists.
If an alarm or error occurs, the following messages will be shown and an internal
buzzer will sound.
ALH
=
High temperature alarm
ALL
=
Low temperature alarm
Er
=
Memory error
oo
=
Open probe error
--
=
Short circuit probe error
The alarm can be cleared and buzzer silenced by pressing the DOWN button. The
alarm message will not be shown, but the alarm LED will flash while the alarm
condition persists.
MAINTENANCE/REPAIR
Upon final installation of the Series TST no routine maintenance is required. The
Series TST is not field serviceable and should be returned if repair is needed. Field
repair should not be attempted and may void warranty.
CLEANING & REPAIR
Clean the surface of the display controller with a soft, damp cloth. Never use abrasive
detergents, petrol, alcohol, or solvents.
WARRANTY/RETURN
Refer to “Terms and Conditions of Sale” in our catalog and on our website. Contact
customer service to receive a Return Goods Authorization number before shipping the
product back for repair. Be sure to include a brief description of the problem plus any
additional application notes.
©Copyright 2019 Dwyer Instruments, Inc.
DWYER INSTRUMENTS, INC.
P.O. BOX 373 • MICHIGAN CITY, INDIANA 46360, U.S.A.
Printed in U.S.A. 8/19
FR# 444245-00 Rev. 1
Phone: 219/879-8000
www.dwyer-inst.com
Fax: 219/872-9057
e-mail: info@dwyermail.com
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