Proportional pressure regulator ETV 3/8" with display, 0.05-9 bar, 4-20 mA
Code: ETV3000-9-E20
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Product detailed description
The ETV3000-9-E20 proportional regulator by EMC sets the pressure of compressed air from 0.05 to 9 bar according to a 4–20 mA electrical signal. The three-colour display shows the setpoint and actual pressure, and you can also set the regulator with the push buttons directly on it. It reports the actual pressure to the control system via a 1–5 V output signal.
The same regulator for a 0–10 V signal: ETV3000-9. You will find other sizes and series in the category proportional pressure regulators controlled by an electrical signal.
Specifications
| Parameter | Value |
|---|---|
| Code | ETV3000-9-E20 |
| Manufacturer | EMC |
| Series | ETV 3000 |
| Control signal | 4–20 mA |
| Output signal | 1–5 V |
| Control range | 0.05–9 bar |
| Inlet pressure | 1 to 10 bar, at least 1 bar higher than the set pressure |
| Connection | G 3/8", pressure gauge G 1/8" (pressure gauge not included) |
| Flow rate | 1,150 l/min (inlet 7 bar, outlet 6 bar, pressure drop 1 bar) |
| Venting | 1,150 l/min, M5 and G 1/8" ports |
| Linearity | ± 1 % of full scale |
| Repeatability | ± 0.5 % of full scale |
| Hysteresis | 0.5 % of full scale |
| Accuracy | ± 0.5 % of full scale |
| Display | three-colour, setpoint and actual pressure (bar, MPa, kPa or psi) |
| Power supply | 24 V DC (21.6–26.4 V), current consumption max. 125 mA |
| Electrical connection | M12 connector, A-coded, 4 pins |
| Protection rating | IP 65 |
| Operating temperature | 0 to +50 °C |
| Medium | finely filtered compressed air (5 µm), oil-free, neutral gases |
| Weight | 0.6 kg |
| Included | L-bracket and foot |
Characteristic and accessories included
The outlet pressure rises evenly with the signal: for ETV3000-9-E20, 12 mA corresponds to a pressure of 4.5 bar and 20 mA to a pressure of 9 bar.
Electrical connection and installation
- power supply 24 V DC (21.6–26.4 V), current consumption max. 125 mA
- 4-pin M12 connector (A-coded)
- control signal 4–20 mA, output signal 1–5 V
- install a fine compressed air filter (5 µm) upstream of the regulator – the air must be oil-free
- inlet pressure 1 to 10 bar, always at least 1 bar higher than the set pressure
- the L-bracket and foot are included; the venting exits through M5 and G 1/8" ports
- you can connect a pressure gauge via the G 1/8" thread; it is not included
Accessories
For higher flow rates and pressures up to 16 bar, there are the DRPA regulators; for a high flow rate, connect the ETV 3000 as a pilot regulator for remote-controlled DRI regulators.
Additional parameters
| Category: | Proportional pressure regulators controlled by an electrical signal |
|---|---|
| Pressure: | 10 bars |
| Weight: | 0,6 kg |
| Max. exit: | 0.05 to 9 bar |
| Control signal: | 4 to 20 mA |
| Flow: | 1,150 l/min |
| Thread: | G 3/8" |
| Connection cable: | 4-pin M12 connector |
Product rating
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EMC (E·MC) is the brand of the Chinese manufacturer of pneumatic components Zhejiang Eternal Automation Sci-Tec Co., Ltd., based in Fenghua (Ningbo). It makes valves, pneumatic cylinders, air preparation units, pressure regulators and vacuum technology.
From EMC we offer EPR 3000 precision pressure regulators, which you set by hand from 0.05 bar, and ETV 3000 proportional pressure regulators with display, which set the pressure according to an electric signal of 0–10 V or 4–20 mA. Both series have a flow of 1,150 l/min.
From 0.05 barEMC regulators
EPR 3000 precision regulators
Manual setting from 0.05 bar. G 1/4" precision pressure regulator with secondary relieving, bracket included.
- ranges 0.05–2, 0.1–4 and 0.1–8 bar
- flow 1,150 l/min, inlet up to 10 bar
- two G 1/8" pressure gauge ports
ETV 3000 proportional regulators
Pressure set by an electric signal. G 3/8" proportional pressure regulator with a display of set and actual pressure.
- ranges 0.05–5 and 0.05–9 bar
- signal 0–10 V or 4–20 mA, output 1–5 V
- flow 1,150 l/min, supply 24 V DC
Need even finer regulation or a higher flow? The overview of pressure regulators includes precision, pilot-operated and proportional series.
All pressure regulatorsEMC regulators in our range
| EPR 3000 precision regulators and ETV 3000 proportional regulators | ||||
|---|---|---|---|---|
| Code | Series | Connection | Regulation | Setting |
| EPR3000-2 | EPR 3000 | G 1/4" | 0.05–2 bar | by knob |
| EPR3000-4 | EPR 3000 | G 1/4" | 0.1–4 bar | by knob |
| EPR3000-8 | EPR 3000 | G 1/4" | 0.1–8 bar | by knob |
| ETV3000-5 | ETV 3000 | G 3/8" | 0.05–5 bar | by signal 0–10 V |
| ETV3000-5-E20 | ETV 3000 | G 3/8" | 0.05–5 bar | by signal 4–20 mA |
| ETV3000-9 | ETV 3000 | G 3/8" | 0.05–9 bar | by signal 0–10 V |
| ETV3000-9-E20 | ETV 3000 | G 3/8" | 0.05–9 bar | by signal 4–20 mA |
EPR 3000: inlet pressure up to 10 bar, operating temperature −20 to +70 °C, air consumption max. 4.4 l/min, bracket included. ETV 3000: inlet pressure 1 to 10 bar (at least 1 bar above the set pressure), supply 24 V DC, protection IP 65, M12 connector, operating temperature 0 to +50 °C. Both series need air filtered to 5 µm, free of oil.
How to choose and connect an EMC regulator
1. By hand or by signal
A pressure that you set once and that should stay constant is held by the EPR 3000 precision regulator. If the machine control system is to change the pressure, choose the ETV 3000 proportional regulator.
2. Choose the range
Choose the smallest range whose upper limit is above the highest pressure you will set – the regulation will be finer. For the ETV 3000 also choose the signal matching the output of the control system.
3. Fit a filter
Both series need clean, oil-free air filtered to 5 µm. Install a fine compressed air filter upstream of the regulator.
4. Mount and set
Fix the EPR 3000 with the bracket supplied or in a panel using the M12 × 1 thread; set the pressure from below. The ETV 3000 comes with an L bracket and a base plate; supply and signal are connected via the M12 connector.
Frequently asked questions
- What is the difference between EPR 3000 and ETV 3000?
- The EPR 3000 is set by hand with a knob and keeps the pressure constant even when the inlet pressure and consumption vary. The ETV 3000 sets the pressure according to an electric signal and shows the set and actual pressure on its display.
- Does the EPR 3000 come with a pressure gauge?
- No, it is not included. The regulator has two G 1/8" ports with plugs – replace one plug with a pressure gauge whose range is slightly above the pressure you set.
- What signal does the ETV 3000 need?
- A voltage of 0–10 V or a current of 4–20 mA (codes ending in -E20). It reports the actual pressure to the control system with a 1–5 V signal. The supply is 24 V DC.
- What inlet pressure is required?
- For the EPR 3000 max. 10 bar. For the ETV 3000 1 to 10 bar and always at least 1 bar more than the pressure you set.
- Where can I find other precision and proportional regulators?
- Precision regulators are in the category high-precision pressure regulators FDR, proportional ones in the category proportional pressure regulators.
E·MC® is a brand of Zhejiang Eternal Automation Sci-Tec Co., Ltd. (Fenghua, Ningbo, China). EPR 3000 ranges and dimensions according to the manufacturer’s catalogue.