Image unavailable
Image unavailable
Define Instruments
Define Instruments Zen RTU
Quote on request
No online payment · add lines to RFQ BOM
Define Zen RTU: 16-ch universal/RTD; Modbus RTU/TCP/EIP; <±0.1% FSO. RFQ.
Download datasheet PDF
RFQ cart holds BOM lines only. Submit for engineering quote.
Key parameters
Accuracy
<±0.1% FSO typical (unless stated per input type)
Type
16-channel remote terminal unit (Zen RTU/U / Zen RTU/R)
Analog Inputs
16× isolated universal (U) or 16× non-isolated RTD (R); 16-bit
Input Isolation U
2500 V AC 1 min between channels (Zen RTU/U)
Digital Inputs
4× opto-isolated; 5–30 V DC; 0–10 kHz frequency
Comms
Port2 RS232/RS485 Modbus RTU 2400–230000 baud; optional Ethernet Modbus/TCP or EtherNet/IP on Port1
Fits multi-channel remote I/O where you need a Define Instruments Zen RTU. Sixteen-channel RTU (Zen RTU/U universal isolated or Zen RTU/R non-isolated RTD) with 16-bit conversion, 4 opto-isolated digital inputs (5–30 V DC; 0–10 kHz), RS232/RS485 Modbus RTU and optional Ethernet Modbus/TCP or EtherNet/IP, accuracy <±0.1% FSO typical, HV or MV power options, and DIN-rail ABS housing operating −10 to 60 °C.
Key advantages
- AI — 16× universal (U) or RTD (R)
- DI — 4× opto; to 10 kHz
- Comms — Modbus RTU; optional TCP/EIP
- Accuracy — <±0.1% FSO typical
- Power — HV or MV supply options
Typical applications
- Remote analog marshalling.
- RTD multi-channel RTU.
- Modbus/Ethernet field I/O.
Selection guide
- U vs R
- Ethernet option
- HV vs MV power
Common mistakes
- U isolation assumed on R model.
- Baud/protocol mismatch.
- Ambient outside −10…60 °C.
When to RFQ / what to tell us
- U/R + comms/power.
- Quantity, ship-to.
Request a Quote · Get selection help
Specs
| Spec | Value |
|---|---|
| SKU | 44058 |
| Brand | Define Instruments |
| Model | Zen RTU |
| Product type | Remote Terminal Unit |
| Type | 16-channel remote terminal unit (Zen RTU/U / Zen RTU/R) |
| Analog inputs | 16× isolated universal (U) or 16× non-isolated RTD (R); 16-bit |
| Input isolation U | 2500 V AC 1 min between channels (Zen RTU/U) |
| Digital inputs | 4× opto-isolated; 5–30 V DC; 0–10 kHz frequency |
| Comms | Port2 RS232/RS485 Modbus RTU 2400–230000 baud; optional Ethernet Modbus/TCP or EtherNet/IP on Port1 |
| Accuracy | <±0.1% FSO typical (unless stated per input type) |
| Power | HV 85–265 VAC / 95–370 VDC or MV 24–48 VAC / 17–72 VDC (LV option on U) |
| Operating temperature | −10 to 60 °C (14 to 140 °F) |
Documents
FAQ
Q: Channels? A: 16 analog (+ 4 DI).
Q: Accuracy? A: <±0.1% FSO typical.
Q: What should I send for a quote? A: U/R + comms/power, quantity, ship-to.
Links
| Parameter | Value |
|---|---|
| Accuracy | <±0.1% FSO typical (unless stated per input type) |
| Type | 16-channel remote terminal unit (Zen RTU/U / Zen RTU/R) |
| Analog Inputs | 16× isolated universal (U) or 16× non-isolated RTD (R); 16-bit |
| Input Isolation U | 2500 V AC 1 min between channels (Zen RTU/U) |
| Digital Inputs | 4× opto-isolated; 5–30 V DC; 0–10 kHz frequency |
| Comms | Port2 RS232/RS485 Modbus RTU 2400–230000 baud; optional Ethernet Modbus/TCP or EtherNet/IP on Port1 |
| Power | HV 85–265 VAC / 95–370 VDC or MV 24–48 VAC / 17–72 VDC (LV option on U) |
| Dimensions | 59 × 255 × 144 mm (H×W×D with plugs); DIN 35 rail ABS |
| Operating Temperature | −10 to 60 °C (14 to 140 °F) |
| Document | Define Instruments ZEN-RTU-DS-17V01 (text via catalog; binary blocked by captcha) |