Display:

3-digit LED display with 14.2 mm digit height

Keyboard:

4 buttons for programming and setting the
setpoint.

Entrance areas:

Setting the input signal in the software or via the keypad.
Thermocouple type K,S,R,J; reference junction: internal (from 0 °C to 50 °C;
Reference junction accuracy 0.1 °C/°C)
Temperature sensors: Pt100, Pt500, Pt1000, Ni100, PTC1K, NTC10K
Linear inputs:
0 V to 10 V, 0/4 mA to 20 mA
Potentiometer: 0 to 150 kOhm

Accuracy:

at 25 °C 0.5% ± 1 digit for thermocouples and resistance thermometers.
0.2% ± 1 digit for V and mA.

Relay output:

UR3274S1: 1 x changeover relay with 10 A at 230 VAC,
1 x NO contact with 5 A at 230 VAC
UR3274S3: 1 x changeover relay with 8 A at 230 VAC,
1 x NO contact with 5 A at 230 VAC
Programmable as control output for heating/cooling or alarm.

SSR output:

UR3274S1: 12 VDC at max. 30 mA with 12 VDC supply
35 VDC at max. 30 mA with 35 VDC supply
UR3274S3: 8 VDC at max. 20 mA
Attention: Ground/minus output is switched.
Programmable as control output for heating/cooling or alarm.

Power supply:

UR3274S1: 12 VAC to 24 VAC or 12 VDC to 35 VDC,
±10 %, 50/60 Hz
UR3274S3: 230 VAC ±10 %, 50/60 Hz

Protection class:

Water jet-proof and dust-tight to IP65 from the front (with seal), rear protection class IP30, connections IP20.

Housing:

Black, impact-resistant plastic housing.

Ambient conditions:

Operating temperature: 0 °C to +45 °C;
Relative humidity 35 % to 95 % rH, non-condensing.

Programming:

Programming and operation is menu-guided via the front buttons. With the programming kit, the controller can also be programmed using Windows ™ software. This software is compatible with Windows 7 and Windows 10. The memory card has an internal battery. This makes it possible to program the devices without connecting the power supply (up to 1000 programs with one battery).

Functionality:

Control output for two-point control (with hysteresis) with P, PI, PD and PID behavior. The
output is time-proportional. Cycle control for a control valve can also be programmed.

Tuning:

Manual or automatic tuning can be set.

Alarm operating modes:

Absolute/threshold, band, lower/upper
Deviation, optional reset via keypad.

Second control output (cooling)

Programmable instead of the alarm output: With P, I, PI, PD and PID behavior. The output is time-proportional. Switching cycle, ratio to heating, overlap or deadband are programmable.

Locks:

Setpoint lock and/or programming lock

Scanning time:

66 ms (15 Hz)

Cycle time:

Internal cycle time is 100 ms (cannot be changed).

Certificates & approvals:

CE, UL

Dimensions (WxHxD):

74 mm x 32 mm x 53 mm.
Panel cut-out 28.5 mm x 70.5 mm. Mounting via
Mounting frame with plastic clamping bracket.

Connection:

Via screw terminals.

Scope of delivery:

Device, fixing material, seal, operating instructions.

Weight:

100 gram

Certificates:

CE, RoHS

Customs tariff number:

8542 31 90

Manufacturer:

Wachendorff Prozesstechnik GmbH & Co. KG