Temperature Controls
Single Loop PID-Controllers
Type PDI 20
•4-dgt multi-range µP-based PID controller
• Temperature measurements in °C or °F
• All software functions selectable by key-pad
•PID, ON/OFF and neutral zone selectable controls
• Autotuning, direct or reverse PID control and dynamic
setpoint capability
•One relay or SSR control output
•One independent alarm setpoint (on request)
•Degree of protection: IP54
•Front size: 24 x 48 mm
Product Description
Ordering Key
Model
Measurement
Power supply
Control output (Out 1)
Alarm output (Out 2)
PDI20A T1 HRX
4-dgt multi-range µP-based
controller for temperature
measurements in °C or °F and
for process signals.
Input from thermoresistance
or thermocouple, PTC, 0/4
to 20 mA or 0 to 10 VDC. Any
parameter is fully programm-
able by user-friendly key-pad.
The PDI 20 includes auto-
tuning, direct or reverse PID
control and dynamic setpoint
capability. The housing is easy
to mount and ensures
degree of protection of IP 54.
a
Type Selection
Measurements
Power supply
Control output (Out 1) (*)
Alarm output (Out 2) (*)
T1:
T2:
TC inputs: J, K, S
RTD inputs:
Pt100, Ni100
PTC input: KTY81
4 to 20 mADC
0 to 20 mADC
0 to 10 VDC
L:
24 VAC, -10% +10%,
R:
0:
Relay
SSR (12 VDC)
X:
R:
0:
None
Relay
SSR (12 VDC)
50/60 Hz,
24VDC -10% +10% 1)
with galvanic insulation
90 to 240 VAC, 50/60Hz
with galvanic insulation
T3:
C1:
C2:
V1:
H:
1)
On request
(*) If out1 is a relay type, out2 can be only an SSR type and viceversa
Input Specifications
Accuracy
Temperature drift
RTD (Pt100, Ni100)
(@ 25°C ± 5°C, R.H. ≤ 60%) ± 0.5% f.s., ± 1 dgt
TC (J, K, S)
(@ 25°C ± 5°C, R.H. ≤ 60%) ± 0.5% f.s., ± 1 dgt
PTC (KTY81, 990 Ω @ 25°C)
(@ 25°C ± 5°C, R.H. ≤ 60% ) ± 0.5% f.s., ± 1 dgt
Process Signals (20 mA, 10 V)
RTD
TC
± 150 ppm/°C
± 150 ppm/°C
± 150 ppm/°C
± 150 ppm/°C
PTC (KTY 81, 990 Ω @ 25°C)
Process signals
Sampling rate
Display
Max. and min. indication
RTD/TC/PTC
1 time/second
7-segment LED, h 12 mm
(@ 25°C ± 5°C, R.H. ≤ 60% ) ± 0.5% f.s., ± 1 dgt
Depending on range and type
of the temperature probe
Max. 7000 (700,0),
Process signals
Min. -999 (-99.9)
Specifications are subject to change without notice (16.10.00)
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