Dwyer TSX3 - Manual (Page 3)

Parameter Description
Compressor / Set Point Menu
SEt Sets the Ambient Temperature set point between r1 and r2
r0
Differential or hysteresis for set point
(For d0 = re)
Ambient temperature ≥ SEt + r0
Output On
Ambient temperature ≤ SEt Output Off
(For d0 = in)
Ambient temperature ≤ SEt - r0
Output On
Ambient temperature ≥ SEt Output Off
r1 Minimum value for set point
r2 Maximum value for set point
r4 Set point deviation from Set value during night setting
r6 Fan Relay Operation
On = Fan is always on while temperature < F0
Off = Fan is always off during regulation
CON = Fan is on when compressor is on
F0 Fan turns off when temperature is greater than this value.
Fan turns on when temperature is less than this value + A0
F1 Determines if fan stops when door is open
No = Fan does not stop working when door is open
Yes = Fan stops when door is open
c0 Minimum time compressor must remain off before being restarted
c1 Duration of continuous cold cycle
c2 During probe error, time that output is engaged
c3 During probe error, time that output is disengaged
c4 Minimum time compressor must stay on
c5 Minimum time between compressors starts
Defrost Menu
d0 Type of Defrosting
re = Defrosting without connecting the compressor
in = Defrosting by connecting compressor
d1 Defrosting stops when defrost probe temperature is above this value
d2 Maximum time the control will be in defrost cycle. If set to zero, control will
not defrost
d3 Hour of the day for the first defrost. No defrost cycles will take place before
this time
d4 Upon powering on the control, delay time before first defrost cycle
d5 Display during defrost cycle
Off = Current temperature displayed
On = Temperature at start of defrost cycle displayed until defrost cycle
ends and the temperature is less than or equal to starting temperature or
after the time is set in d6.
d6 Maximum time before the display returns to normal reading after a defrost
cycle
d7 Time after defrost cycle before the compressor can be started
d8 Time between defrost cycles. If set to 0, defrost must be manually actuated
d9 Determines if Fan operates during defrost
d10 Amount of time after defrost before the fan can restart
d11 Minimum duration the control remains in defrost cycle
d12 Determines which temperature probe to use to control the defrost cycle
d13 Selection of Intelligent Defrost Method
off = turns off intelligent defrost
JuP = Skips defrost cycles as necessary
CiC = Adjusts time of defrost cycle as necessary
d14 Units to count the defrost cycle
rt = according to the time the controller was on
ct = according to the time the compressor was on
d15 The time of the defrost cycle will not be counted if the evaporator
temperature is above this value
d16 Sets the normal defrost time as a percentage of d2.
d17 Value that d8 will be incremented or decremented during Intelligent defrost
when d13 = CiC
Hde Hours until next defrost cycle
nde Minutes until next defrost cycle
JdF Displays the adjustments to the defrost cycle during intelligent defrost
When d13 = JuP, displays number of defrost cycles to skip
When d13 = CiC, displays increments of d8.
Display Menu
P0 Selection of Engineering Unit (F or C)
P1 Ambient Probe Calibration Adjustment
P2 Defrosting Probe Calibration Adjustment
P4 Decimal Point Present
P5 Probe to display
P6 Probe 2 Present
Alarm Menu
A0 Alarm Differential or Hysteresis
A1 High Alarm Set Point (Deviation Value)
On when temperature reaches Set + A1 and off at Set + A1 - A0
A2 Low Alarm Set Point (Deviation Value)
On when temperature reaches Set - A2 and off as Set - A2 + A0
A3 Time of Alarm Inhibit after Continuous Cool Cycle
A4 Time of Alarm Inhibit after Continuous Defrost Cycle
A6 Time of Alarm Inhibit after Power Up
A7 Time since Alarm Initiated until Validated
A8 Probe to be used for Alarm Settings
Initial Setup Menu
Hor Real Time Hours
nin Real Time Minutes
E0
Assignment of Digital Input
Off = Digital Input disabled
A1 = External alarm condition when short circuited
In = Door open if short circuited
DEF = Defrost Cycle initiated when shirt circuited
Ndf = Defrost Cycle will be bypassed when shirt circuited
RSt = Night Set Points used when short circuited
H0 Restore Factory Configuration
H1 Assign Master/Slave for Defrost Cycles
Mst = Sends signal through digital input to initiate slave controls to start
defrost
Slv = Performs defrost when receives defrost signal through digital input
(E0 = DEF when using master/slave operation)
H2 Keypad Password Protected
Yes = code is necessary to start/stop defrost or continuous cold cycle.
One minute after entering the code, keypad is locked again
No = Keypad not protected
H3 Compressor delay time upon power up
H4 Address for serial communications (Need Model TS485 communication
module)
H5 Input code to Parameters (factory set at 0)
H6 Input Probe Types: PTC or NTC
H7 Assignment for Relay 2
Lit = Light
Fan = Fan
ALA = Alarm
dEF = Defrost
H8 Assignment for Relay 3 (only available on 3 output models)
Lit = Light
Fan = Fan
ALA = Alarm
dEF = Defrost
H11 HACCP Alarm recording enabled or disabled
dAt Real Time Date can be programmed by holding the set key for 3 seconds.
Then, use arrows to select day. Press set to store day; use arrows to
access month and year
td The display refreshes at 1 degree if actual temperature is greater than 1
degree higher td seconds before during defrost and open door conditions
Front Panel Operation
Set Point Setup
• Press the Set key once and SEt will be displayed.
• Press Set key again and set point value will be shown.
• Uses the Up and Down arrows to adjust set point.
• Press the Set key to save the new set point.
• Press Set and Down arrow at same time to exit.
Time Setup
• Press the Set Key once and SEt will be displayed.
• Use the Up and Down arrow until Hor is displayed for adjusting the hours.
• Press the Set key to view the current value.
• Use the Up and Down arrow to adjust to current time.
• Press the Set key for 8 seconds to save the new time (PrO will flash on display
once the value is saved).
• Press the Set key to return to the previous menu.
• Use the Up and Down arrow until nin is displayed for adjusting the minutes.
• Repeat steps 3 through 6.
• Press the Set and Down arrow at the same time to exit.