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8189 Century Boulevard • Minneapolis, MN 55317-8002 • USA
800-843-5116 • 952-556-4900 • Fax 952-556-4997
[email protected] • www.mamacsys.com
RoHS
Installation Instructions
IS.EP311/313-08
ELECTROPNEUMATIC TRANSDUCER
For Additional Information See EP 311/313 Data Sheet
SPECIFICATIONS
Accuracy*: ± 1% FS
Maximum Supply Pressure: 40 PSIG
Pressure Differential:
0.1 PSIG (supply to branch)
Supply Current: 150 mA
Supply Voltage: 18-28 VAC/VDC
Enclosure: 18 Ga. C. R. Steel Chassis
Finish: Baked on enamel - PMS2GR88B
EMC Conformance:
61000-4-2, 3, 4, 5, 6 & 11
Compensated Temperature Range: 25°F to 150°F (4°C to 65°C)
T. C. Error: ± 0.025%/°F (.03%/°C)
Media Compatibility: Clean dry air or any inert gas
Port Connection: 1/4" O.D. poly tubing
Environmental: 10 - 90% RH non-condensing
Termination: Screw terminal block
Wire Size: 12 Ga. max.
Input Impedance: 301 ohms (4-20 mA)
10K ohms (0-5/0-10 VDC)
Weight: 1.0 lb. (.45 kg)
* Includes non-linearity, hysteresis and non-repeatability
:
EN 55022, 55024, 61000-3-3,
:
Mounting: The EP-311/313 must be mounted in an upright position so that the
ports are facing upward and the gauge can be easily read.
1. Select the mounting location.
2. Mount the transducer on a vertical surface with three #8 self-tapping screws
(not provided).
3. Pull wires through the bottom of the device and make necessary connections.
4. Make the necessary pneumatic connections.
Wiring: Use maximum 12 AWG wire for wiring terminals. Use flexible 1/4”
O.D. poly tubing for main and branch pneumatic connections. Refer to
Figure 1 and Figure 2 for wiring configurations, Figure 3 for terminal
location and designation, and Figure 4 for dip switch settings.
CAUTION!
• Main supply pressure must not exceed 40 PSIG.
• A minimum of 6 to 10 feet (1.8 to 3.0m) of tubing should be between the unit
and the actuator.
• For 24 VAC supply voltage, ensure that the hot and neutral are not reversed.
If more than one unit is being powered from the same transformer, the hot
and neutral should be the same for each unit.
Note: The gauge on the unit is for indication only. The transducer’s calibration
is more accurate than the accuracy of the gauge.
TYPICAL APPLICATIONS (wiring diagrams)
ORDERING INFORMATION
INSTALLATION
Inspection: Inspect the package for damage. If damaged, notify the
appropriate carrier immediately. If undamaged, open the package and
inspect the device for obvious damage. Return damaged products.
Requirements:
• Installer must be a qualified, experienced technician.
• Tools (not provided):
- Digital Volt-ohm Meter (DVM)
- Appropriate screwdriver for mounting screws
- Appropriate drill and drill bit for mounting screws
• Appropriate accessories
• Three #8 self-tapping mounting screws (not provided)
Warning:
• Do not use on oxygen service, in an explosive/hazardous environment,
or with flammable/combustible media.
• Disconnect power supply before installation to prevent electrical shock
and equipment damage.
• Make all connections in accordance with the job wiring diagram, and in
accordance with national and local electrical codes. Use copper
conductors only.
Caution:
• Use electrostatic discharge precautions (e.g., use of wrist straps) during
installation and wiring to prevent equipment damage.
• Do not exceed ratings of the device.
Figure 1 - Wiring Diagram for 24 VAC Supply Configuration
Figure 2 - Wiring Diagram for 24 VDC Supply Configuration
Caution: This product contains a half-wave rectifier power supply and
must not be powered from transformers used to power other devices
utilizing non-isolated full-wave rectifier power supplies.
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EP-311/313 ELECTROPNEUMATIC TRANSDUCER INSTALLATION INSTRUCTIONS
3. Connect terminals + and - to the appropriate power source for this unit.
The EP-311/313 can accept either 24 VAC or 24 VDC supply voltage.
The maximum supply voltage should not exceed 30 VAC/VDC.
4. Apply low input signal to terminals - and I (0 VDC or 4 mA).
5. Adjust Z to obtain desired output low pressure.
6. Apply high input signal to terminals - and I (5/10 VDC or 20 mA).
7. Adjust S to obtain desired output high pressure.
8. Repeat Steps 4-7 until the unit is completely calibrated.
MAINTENANCE / FIELD REPAIR
Regular maintenance of the total system is recommended to assure sustained
optimum performance. No field repair is possible. Replace suspect devices
with a functional unit.
WARRANTY
See Data Sheet for additional information.
Figure 3 - Terminal Locations on EP-311/313
Installation Adjustments: The EP-311/313 is supplied from the factory
set for 4-20 mA. To change the input configuration, adjust the Dip switch
settings as illustrated in Figure 4 (below).
Figure 4
Dip Switch Settings on
EP-311/313
CHECKOUT
1. Verify that the unit is mounted in the current position.
2. Verify appropriate supply voltage.
CAUTION: NEVER connect 120 VAC to these transducers!
3. Verify appropriate input configuration.
TRANSDUCER OPERATION
This is a rough functional check only.
1. Adjust the input signal to obtain maximum output pressure for
appropriate range.
2. Output should be 15 or 20 PSIG.
3. Adjust the input signal to obtain minimum output pressure.
4. Output should be 0 or 3 PSIG.
CALIBRATION
All units are factory calibrated to meet or exceed published specifications.
If field adjustment is necessary, follow the instructions below.
1. Connect air to main port.
2. Connect branch port to an accurate gauge with a minimum 6 to 10 ft.
(1.8 to 3.0m) of tubing.
Figure 5 - EP-311/313 Electropneumatic Transducer Dimensions
shown in inches and millimeters (mm)
For Technical / Application Assistance call your nearest office
8189 Century Boulevard • Minneapolis, MN 55317-8002 • USA
800-843-5116 • 952-556-4900 • Fax 952-556-4997
[email protected] • www.mamacsys.com
EUROPE
4200 Waterside Centre
Solihull Parkway
Birmingham • West Midlands
B37 7YN • United Kingdom
01384-271113 • Fax 01384-271114
ASIA
1 Fullerton Road #02-01
One Fullerton
Singapore • 049213
65-31581826 • Fax 65-31581826
MAMAC Systems, Inc., reserves the right to change any specifications
without notice to improve performance, reliability, or function of our products.
905-474-9215 • Fax 905-474-0876
08-8395-4333 • Fax 08-8395-4433
CANADA
675 Cochrane Drive
East Tower • 6th Floor
Toronto • Ontario
L3R 0B8 • Canada
AUSTRALIA
4 Armiger Court, Unit 2
Adelaide • S.A.
5088 • Australia
IS.EP311/313-08
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