ACI EPC : Analog Input (0-5VDC), Pressure Output (0-10PSI), Single Valve, 0.007" Bleed Orifice, (0-10V, 0-15V 0-20mA), (0-15PSI, 0-20PSI)
The EPC Series is a type of electric to pneumatic transducer that transforms an analog input signal into a proportional pneumatic output. This output is used to modulate control valves, adjusting the branch line pressure to match the desired set point based on the input signal. The EPC Series provides flexibility with four selectable input ranges, and it allows users to adjust output pressure ranges as needed. Additionally, it offers a feedback signal indicating the branch line pressure.
The EPC Series is designed for easy installation, with electrical terminals on one end and pneumatic connections on the other. This design simplifies wiring and tubing installation, especially when panel mounted. In the event of a power failure, the EPC will gradually release pressure through a bleed orifice until the branch pressure reaches zero psig.
This device is suitable for various applications, including 3 Way Mixing Valve Control, Chiller Loading, Pilot Positioner Control, Pneumatic Valve & Damper Actuator Control, Fan Vane Control, DDC Control, and Above Ceiling Applications involving Mixing & VAV Boxes.
Specifications
| Supply Voltage: | 24 VAC (+/- 10%), 50/60 Hz, 24 VDC (+10% / -5%) |
| Supply Current: | 500 mAAC, 200 mADC Maximum |
| Input Signal Source (@ Impedance): | 0-5 VDC @ infinite Ω | 0-10 VDC @ infinite Ω | 0-15 VDC @ infinite Ω | 0-20 mA / 250Ω |
| Feedback Signal Output Range: | 0-5 VDC = Output Span |
| Output Pressure Range: | Field Calibration Possible: 0 to 20 psig (0-138 kPa) maximum |
| Output Pressure Range - Jumper Selectable: | 0-10 psig (0-68.95 kPa), 0-15 psig (0-103.43 kPa) or 0-20 psig (137.9 kPa) |
| Air Supply Pressure: | Maximum 25 psig (172.369 kPa), minimum 22 psig (151.69 kPa) |
| Air Consumption: | See Ordering Grid |
| Output Pressure Accuracy: | 1% room temperature | 2% full scale across operating temperature range |
| Manual / Auto Override Switch: | MAN funciton = output can be varied | AUTO function = output is controlled from input signal |
| Manual / Auto Override Feedback Output: | Dry Contacts: 24 VDC/VAC @ 1A maximum, N.O. in AUTO operation (Optional: N.O. in MAN operation) |
| Air Flow: | Supply valves @ 25 psig (172.38 kPa) main/20 psig (137.9 kPa) out, 2300 scim Branch Line requires 2 in3 / 33.78 cm3 (min.) | Min. 25 ft of 1/4" O.D. poly branch tubing |
| Filtering: | Furnished with integral-in-barb 80-100 micron filter (Part #PN004) except for EPC2LG which is furnished with external 5 micron in-line filter (PN021) |
| Connections | Wire Size: | 90° Pluggable Screw Terminal Blocks | 16 (1.31 mm2) to 26 AWG (0.129 mm2) |
| Terminal Block Torque Rating: | 0.5 Nm (Minimum); 0.6 Nm (Maximum) |
| Connections | Pneumatic Tubing Size- Type: | 1/4" O.D. nominal (1/8" I.D.) polyethylene |
| Pneumatic Fitting: | Removable brass fittings for Main & Branchc in machined manifold, Plugged 1/8-27-FNPT gauge port |
| Gauge Pressure Range (Gauge Models): | 0-30 psig (0-200 kPa) |
Gauge Pressure Accuracy (Gauge Models): | ±2.5% Midscale (±3.5% Full Scale) |
| Operating Temperature Range: | 35 to 120°F (1.7 to 48.9°C) |
| Operating Humidity Range: | 10 to 95% non-condensing |
| Storage Temperature Range: | -20 to 150°F (-28.9 to 65.5°C) |
| Snaptrack Material: | Polyvinyl Chloride (PVC) |
| Snaptrack Flammability Rating: | UL94 V-0 |
| Enclosure Options (Box Options): | Painted steel housing has mounting flange with four holes for sheet metal screws |
| Product Dimensions: | See table on back of product data sheet |
| Product Weight: | EPCG: 0.46 lbs. (0.2069 Kg) | EPC2G: 0.70 lbs. (0.3175 Kg) | EPC2GFS: 0.68 lbs. (0.309 Kg) EPC2GB: 1 lbs 1 oz. (0.482 Kg) | EPC2GFSB: 0.96 lbs. (0.436 Kg) |
| Agency Approvals: | RoHS2, WEEE |
Data Sheets
- Input Signal:
- Analog
- Output Signal:
- Pressure
- Guage:
- No Gauge
- Failsafe:
- No Failsafe
- Valves:
- 1 Valve
