Wachendorff UR3274U5 PID Temperature Controller UR3274U5 Data Sheet

Product codes
UR3274U5
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Universal PID-Controller UR3274
l PID-Controller in 32 x 74 mm format
l   Universal power supply 
l   Universal input für process signals, thermocouple, RTD
l 2-line LED display
l Easy programming via software or push buttons
l Two setpoints as relay or relay/SSR
This small universal controller is a compact all-rounder. With the 
universal input for the most common temperature sensors and 
process signals combined with the universal power supply and the 
newest programming and control technologies, this small PID-
controller is the best solution for sophisticated applications. 
Beside the excellent price/performance-ratio, this controller 
convinces with his robust housing and brilliant display. 
Display: 2-line LED-Display 
Upper line: Process value, 4-digit, green with 10.2 mm digits
Lower line: Setpoint, 4-digit, red with 7,6 mm digits
Indicators:  Six red indicators for relais outputs, alarm status, serial 
communication and tuning. 
1
ON, when output active. For electronic valves. 
ON, when the valve opens and blinking when valve closes. 
2, 3 
ON, when alarm is active 
M   
ON, when the function “manual” is switched on
T
ON, when controller is in “autotune” mode 
R
ON when serial communication is active 
Buttons: 4 push buttons for programming and setting up the 
setpoints. 
Input ranges: Configuration of the input signal via software or push 
buttons. 
Thermocouples   type K, S, R, J; internal cold junction (from 0 °C to
50 °C; accurracy of   cold   junction 0,1 °C/°C) 
RTD: Pt100, Pt500, Pt1000, Ni100, PTC1K, NTC10K 
Linear inputs: 0 V to 10 V, 0/4 mA   to 20 mA, 0 mV to 40 mV
Potentiometer: 1 kOhm to 6/150 kOhm
Accurracy:  Tolerance at 25 °C +/-0.2 % ± 1 digit for thermocouple 
input, RTD input and analogue input signal. 
Measuring rate: Programmable up to 4,1 msec. (242 Hz). 
User input: (only available for thermocouple or process signal input) 
switchable via contact input signal. 
Alternative usable functions: Hold/freeze values, selecting setpoint 1 
to 2. 
Relay output: 1 change over relay with 8 A @ 250 VAC and 1 closing 
contact (UR3274U5) with 5 A @ 250 VAC. Programmable as 
controller output for heating/cooling and/or alarm. 
SSR output: SSR output 12 VDC @ 30 mA. 
Programmable as controller output for heating/cooling and/or alarm. 
Wachendorff Prozesstechnik GmbH & Co. KG
Industriestrasse 7
D-65366 Geisenheim
Tel.: +49 (0) 67 22 / 99 65 - 20
Fax: +49 (0) 67 22 / 99 65 - 78
www.wachendorff.de
Communication port (only UR3274U6): RS485 with Modbus RTU as 
slave. 
Supply: 
24VAC/DC to 230 VAC/DC +/-15 %,   50/60Hz; 4,65 VA
Wiring plan:
Protection class: IP65 from the front (with rubber sealing), back plane 
IP20.
Housing: Black and robust plastic case. The electronics can be pulled 
out of the front. 
Dimensions: W 77 mm x H 35 mm x D 53 mm. Panel cut out 28,5 mm x 
70,5 mm. 
Connection: Via terminal block. 
Ambient conditions: Operating temperature: 0 °C to +45 °C; relative 
humidity 35 % to 95 %. rF, non condensing.
Weight: 112 gramms. 
Scope of delivery: Controller, mounting clamp, sealing, manual. 
Functionality: 
Control algorithms: ON - OFF with hysteresis, P., P.I., P.I.D., P.D. time 
proportioned, dead band. Additionally open / close logic for motorized 
valves. 
Tuning:
Manual or automatic tuning selectable.
Alarm modes: Absolute / Threshold, band, High / Low deviation. Alarm 
with optional manual reset .
Second controller output (cooling): Programmable instead of alarm 
output with P., P.I., P.I.D., P.D. time proportioned with dead band. 
Timer function: Controller function + single / double Timer. 
Copyright by Wachendorff Prozesstechnik GmbH & Co. KG, Industriestraße 7, D-65366 Geisenheim, Tel.: 06722/9965-20, Fax: -78, Stand: 16.03.2011. 
All information without guarantee and subject to change.
UR3274Ux 
UR3274U6
UR3274U5