2800 Laura Lane Madison, WI 53562 | 800.288.9383 Fax: 608.836.9044 | www.tcsbasys.com
5
Setup
PRESSURE CONNECTIONS
For pressure inde-
pendent applications,
the SZ1025b provides
a velocity pressure
transducer. To utilize
this, connect the high
port on the SZ1025b
to the air flow measur-
ing station port or pitot
tube port that faces
the flow. Connect
the low port on the
SZ1025b to the air
flow measuring station
port or pitot tube port
that faces away from
the flow.
USING TRI-STATE ACTUATORS
If using tri-state instead of 4 to 20 mA, actuators a
QE25 transducer is available. To connect the QE25 to
the SZ1025b, use the ribbon connector included with
the QE25 as shown, in the wiring section.
The SZ1025b may be programmed through the display
and keypad, or with a PC.
If programming with a PC, the following must be set
through the keypad prior to programming:
• Address (step #2)
• Baud rate (step #3)
For more information on programming through the PC,
consult your TCS software manual.
Programming through the Keypad
To access the programming screens, press both the
“Scroll” and “Next” keys simultaneously.
Scroll Key
- The "Scroll" key is also used to save any
changes to the "current" screen and advance
to the next screen while programming. The
"Scroll" key is used to enter the Programming
Mode when pressed with the "Next" key.
Next Key
-
Used to enter Programming Mode when
pressed with the “Scroll” key. Also used to exit
programming without saving changes to the cur-
rent screen.
Increment/Decrement Keys
-
Used to select the desired value.
Programming
Zone temp
71F
Main Monitoring Screen.
Press the
scroll and next buttons to access the
following screens.
Access Code Entry Screen.
Enter
the access code. If the wrong code
is entered, the prorm reverts to the
main screen. 248 is the default access
cose.
Controller Address Screen.
If using a
PC to access the SZ1025b, set a unique
address from 0 to 255, excluding 248.
Communication Baud Rate Screen.
If
using a PC to access the SZ1025b, all
contollers on a network must be set to the
same baud rate. Choose between 2.4K,
4.8K, 9.6K and 19.2K.
Temperature Selection Screen.
Select whether youwant to show Deg.
Fahrenheit or Celsias.
Shared Temperature Enable Screen.
Sharing zone temperature with another
SZ1025b (2 max.) Select YES if not
select NO.
Zone Temperature Calibration Screen.
A calibration factor (+/- 25°F) for zone
temperature Input.
Supply Temperature Calibration
Screen.
Enter a calibration factor (+/-
50°F) for supply temp Input.
Pressure Calibration Screen.
Enter a
calibration factor (+/- 0.50WCD) for
pressure.
Setpoint Low Limit Value Screen.
Enter
a setpoint low limit value. The setpoint
will not be allowed to be set lower than
this setting.
+
ENTER ACCESS
CODE 000
1.
SET ADDRESS:
000
2.
SET BAUD RATE:
9.6k
3.
TEMPS SHOWN IN:
FAHRENHEIT
4.
ENABLE SHARED
TEMP INPUT? NO
5.
CALIBRATE ZONE
TEMP. 0F
6.
CALIBRATE SUPPLY
TEMP. 0F
7.
CALIBRATE
PRESSURE 0.00 WCD
8.
SETPOINT LOW
LIMIT: 40
9.
