Dwyer TS - Manual (Page 2)

DWYER INSTRUMENTS, INC.
Phone: 219/879-8000 www.dwyer-inst.com
P.O. BOX 373 • MICHIGAN CITY, INDIANA 46361, U.S.A. Fax: 219/872-9057 e-mail: [email protected]
©Copyright 2007 Dwyer Instruments, Inc. Printed in U.S.A. 8/07 FR# R1-443185-00 Rev. 2
PARAMETER DESCRIPTIONS
SP = Set Point - Desired Regulation Temperature.
r0 = Differential or Hysteresis.
r1 = Lower Set Point Limit.
r2 = Higher Set Point Limit.
d0 = Heating or Cooling Control - This control only does
regulation cycles. Neither defrosting nor continuous
cycles exist.
Heating: To choose Heating Control - Set d0=Ht
(The output is activated when TS1 [temperature of
ambient probe] is less than or equal to Set Point.)
TS1<=SP. It then disconnects when TS1>=SP-r0.
Cooling: To choose Cooling Control - Set d0=Co
(The output is activated when TS1>=SP+r0.) The
display will switch off when TS1<=Set.
d2 = Duration of Defrosting Time (The value
programmed from the factory is d2=15 minutes.
[Ht-defrosting will never start, if Co=0, defrosting
will never start.])
d8 = Interval time between defrosting.
c0 = Minimum time between start and stop.
c1 = Continuous cycle time.
P1 = Ambient Probe Calibration. (Offset degrees to
adjust ambient probe. If the probe is not placed in
the exact point that is to be measured, use a
standard thermometer and adjust the difference in
this parameter.)
H5 = Access to probe parameters. (This code is set to
00 from the factory.)
t0 = Maximum temperature on display. (Temperature
limit for defrosting.)
PARAMETER PROGRAMMING
Access set point (SP) without code protection.
• Press SET. SP text will appear on the display.
• Press SET again. The real value is shown on the
display.
• The value can be modified with the UP and DOWN
arrows.
• Press SET to enter any new values.
• Press SET and DOWN at the same time to quit
programming or wait one minute and the display
will automatically exit programming mode.
* The keyboard code can be reset to ZERO by
turning off the controller and turning it on again
while keeping the SET key depressed.
Access to all code protected parameters.
• Press SET for 8 seconds. The access code value
00 is shown on the display. (Unit comes with
code set at 00 from factory).
• With the UP and DOWN arrows, code can be set to
user needs.
• Press SET to enter the code. If it is correct, the first
parameter label is shown on the display (SP).
• Move to the desired parameter with the UP and
DOWN keys.
• Press SET to view the value on the display.
• The value can be modified with the UP and DOWN
arrows.
• Press SET to enter the value and exit to test
parameter.
• Press SET and DOWN at the same time to quit
programming or wait one minute and the display will
automatically exit programming mode.
LED INDICATIONS
OUT This indicates the load is connected. The
system waits for the programmed minimum
stop time of the load.
Def This indicates defrosting is activated.
DISPLAY MESSAGES
In normal operation, the probe temperature will be shown
on the display. In case of alarm or error, the following
messages will be shown:
• ER = Memory Error
• -- = Short-Circuit Probe Error
• oo = Open Probe Error
MAINTENANCE/REPAIR
After final installation of the TS Series Digital Temperature
Switch, no routine maintenance is required. A periodic
check of system calibration is recommended. These
devices are not field repairable and should be returned to
the factory if recalibration or other service is required. After
first obtaining a Returned Goods Authorization (RGA)
number, send the material, freight prepaid, to the following
address. Please include a clear description of the problem
plus any application information available.
Dwyer Instruments Inc.
Attn: Repair Department
102 Highway 212
Michigan City, IN 46360
E-90-TS 8/6/07 3:45 PM Page 2