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DIN Rail Universal Programmable Signal Conditioner w/ Relay Output

Universal Signal Transmitter with 2 Relay Output
  • RoHS Icon
  • CE Approved
  • UL cULus Listed



Volume discounts available
Volume Discount Schedule
Quantity Price each
1-4 C$415.49
5-9 C$394.72
10-24 C$386.41
25-49 C$369.79
50-99 C$361.48
100+ C$353.17

In stock

Lead Time (If not in stock): 9 weeks
Universal Signal Transmitter with 2 Relay Output DRST-UR DRST-UR
  • Input for RTD, TC, O, potentiometer, mA and V
  • 2-wire supply 16 V
  • UL and cUL Approval
  • Output for current, voltage and 2 relays

DRST-UR Model Options

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Input Type
Input Class
Input Ranges
Output Type
Output Class
Display Type
Supply Voltage Type

Advanced Features
Programmable via detachable display front, process calibration, signal and relay simulation, password protection, error diagnostics and selection of help text in several languages.
• Linearized, electronic temperature measurement with RTD or TC sensor.
• Conversion of linear resistance variation to a standard analog current/voltage signal, i.e. from solenoids and butterfly valves or linear movements with attached potentiometer.
• Power supply and signal isolator for 2-wire transmitters. Process control with 2 pairs of potential-free relay contacts and analog output.
• Galvanic separation of analog signals and measurement of floating signals.
• The DRST-UR is designed according to strict safety requirements and is therefore suitable for application in SIL 2 installations.
Technical Characteristics
• When DRST-UR is used in combination with the DRSL-DISPLAY programming front, all operational parameters can be modified to suit any application. As the DRST-UR is designed with electronic hardware switches, it is not necessary to open the device for setting of DIP-switches.
• A green/red front LED indicates normal operation and malfunction. A yellow LED is ON for each active output relay.
• A continuous check of vital stored data for safety reasons.
• 4-port 2.3 kVAC galvanic isolation.

Environmental Conditions
Operating Temperature: -20 to 60°C
Storage Temperature -20 to 85°C
Calibration Temperature20 to 28°C
Relative Humidity < 95% RH (non-cond.)
Protection Degree IP20
Mechanical Specifications
Dimensions (H x W x D): 109 x 23.5 x 104 mm
Dimensions (H x W x D) w/ 4501/4511:109 x 23.5 x 116 / 131 mm
Weight Approx: 170 g
Weight incl. 4501 / 4511 (approx.): 185 g/270 g
Wire Size: 1 x 2.5 mm2 stranded wire
Screw Terminal Torque: 0.5 Nm
Vibration: IEC 60068-2-6
2 to 13.2 Hz: ±1 mm
13.2 to 100 Hz: ±0.7 g
Common Specifications
Supply Voltage, Universal: 21.6 to 253 Vac, 50 to 60 Hz or 19.2 to 300 Vdc
Fuse: 400 mA SB/250 Vac
Max. Required Power: = 2.5 W
Isolation Voltage
Isolation Voltage, Test/Working: 2.3 k Vac/250 Vac
Response Time
Temperature Input (0 to 90%, 100 to 10%) = 1 s
mA/V Input (0 to 90%, 100 to 10%): = 400 ms
Auxiliary Supplies
2-w. supply (term. 44...43): 25 to 16 Vdc / 0 to 20 mA
Programming Communication enabler DRSL-DISPLAY
Signal/Noise Ratio: Min. 60 dB (0 to 100 kHz)
Accuracy Better than 0.1% of sel. range
EMC Immunity Influence < ±0.5% of span
Extended EMC Immunity: NAMUR NE21, A Criterion, Burst: < ±1% of span
Input specifications
RTD input
RTD Type:
Cable Resistance per Wire 50 Ω (max.)
Sensor Current: Nom. 0.2 mA
Effect of Sensor Cable Resistance (3/4-Wire): < 0.002 Ω/Ω
Sensor Error Detection: Yes
Short Circuit Detection: < 15 Ω
Linear Resistance Input
Linear Resistance Min/Max: 0 to 10000 Ω Potentiometer Input
Potentiometer Min/Max: 10 Ω to 100 kΩ
TC Input
Thermocouple Type: B, E, J, K, L, N, R, S, T, U, W3, W5, LR
Cold Junction Compensation (CJC) via ext. Sensor in Connector 5910: 20 to 28°C = ±1°C, -20 to 20°C/28 to 70°C = 2°C
CJC via int. Mounted Sensor: ±(2.0°C + 0.4°C * ∆t)
∆t =: Internal temp.-ambient temp.
Sensor Error Detection: Yes
Sensor Error Current: When
Detecting/Else: Nom. 2 µA / 0 µA
Current Input
Measurement Range: 0 to 20 mA
Programmable Measurement Ranges: 0 to 20 and 4 to 20 mA
Input Resistance: Nom. 20 Ω + PTC 50 Ω Sensor Error Detection: Loop
Break 4 to 20 mA: Yes
Voltage Input
Measurement Range 0 to 12 Vdc
Programmable Measurement Ranges: 0/0.2 to 1, 0/1 to 5, 0/2 to 10 Vdc
Input Resistance: Nom. 10 MΩ
Output Specifications
Current Output
Signal Range: 0 to 20 mA
Programmable Signal Ranges: 0 to 20/4 to 20/20 to 0/20 to 4 mA
Load (@ Current Output): ≤ 800 Ω
Load Stability: ≤ 0.01% of span/100 Ω
Sensor Error Indication: 0/3.5/23 mA/none
NAMUR NE43 Upscale/Downscale:23 mA/3.5 mA
Output Limitation, on 4 to 20 and 20 to 4 mA Signals: 3.8...20.5 mA
Output Limitation, on 0 to 20 and 20 to 0 mA Signals: 0 to 20.5 mA
Current Limit:≤ 28 mA
Voltage Output
Signal Range: 0 to 10 Vdc
Programmable Signal Ranges: 0/0.2 to 1; 0/1 to 5 ; 0/2 to 10; 1 to 0.2/0; 5 to 1/0; 10 to 2/0 V
Load (@ Voltage Output): ≥ 500 kΩ
Relay Output
Relay Functions: Setpoint, Window, Sensor error, Latch, Power and Off
Max. Voltage: 250 VRMS
Max. Current:2 AAC or 1 ADC
Max. AC Power: 500 VA
Observed Authority Requirements
EMC: 2014/30/EU
LVD: 2014/35/EU
EAC:TR-CU 020/2011
UL: UL 508/C22.2 no. 14
DNV-GL Marine Stand. f. Certific. No. 2.4
EU RO Mutual Recognition Type
Approval: MRA000000Z
SIL Hardware assessed for use in SIL applications
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