Data Sheet for Product

Polygyr-Compact Immersion Temperature Controller Technical Instructions
Document Number CM1N3409E-P25
Rev. 1, February, 2000
Siemens Building Technologies, Inc.
Page 3
Accessories
If required, a protection well can be ordered:
4 660 1893 0 Protection well PN10, nickel plated brass
4 660 1799 0 Protection well PN16, St 18/8/2,5 CrNiMo
Unit Combinations
The RCE61.21 can control various units with the following characteristics:
•
Type of control 0 — 10 Vdc
•
Operating voltage 24 Vac
Remote Setting Units
The FZA21.11 remote setting unit is used for remote setting of the desired value.
Specifications
Operating voltage 24 Vac ± 20%
Frequency 50 – 60 Hz
Power consumption 1 VA
Control signal:
Voltage 0 – 10 Vdc, continuous
Current 1 mA
Integral action times (selectable)
PI 1 10 seconds
PI 2 60 seconds
PI 3 NI1000
Ω
@ 32°F (0°C)
Measuring element LG-Ni 1000
Ω
@ 32°F (0°C)
Time constant
Standard version 4 seconds
With protection well 25 seconds
Setting ranges
Set point 86 – 266°F (30 – 130°C)
Proportional band Xp1 5 – 50%, 9 - 90°F
Proportional band Xp2 5 – 50%, 9 – 90°F
Permissible nominal pressure PN16
Permissible detector temperature 266°F (130°C)
Permissible ambient temperature:
Operation 14 – 122°F (-10 – 50°C)
Transport and storage -13 – 149°F (-25 – 65°C)
Cable entry fitting Pg11
Connecting terminals for 2 x 14 AWG or 1 x 12 AWG
Weight 0.55 lb.
Application
When the unit is switched off or the power supply interrupted (Terminal G), the
regulating unit is automatically run to the closed or no-load position.
A transformer is required to generate the operating voltage of 24 Vac. When several
units are connected, the size of the transformer is determined by adding up the power
consumption of the individual units. See
Wiring Diagrams
for connecting terminal
designations.
Actuators
For fast controlled systems, always use an SKD62 or SQX61 actuator.