Pulse Output Device (POD) Installation & Parts
Liquid Controls Group An IDEX Fluid & Metering Business |
Operation: EM300-10 |
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Table of Contents
Introduction |
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Safety Procedures.................................................... |
3 |
General Information.................................................. |
4 |
POD Models.............................................................. |
4 |
Output Signal Resolutions........................................ |
4 |
Specifications............................................................ |
5 |
Dimensions............................................................... |
5 |
Regulatory Compliance Tag Markings...................... |
6 |
Installation |
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POD Installation........................................................ |
7 |
POD Extension Kit Installation.................................. |
9 |
POD Wiring.............................................................. |
10 |
POD Wiring Schematics.......................................... |
12 |
Bill of Materials......................................................... |
13 |
NOTICE
This manual provides warnings and procedures that are intended to inform the owner and/or operator of the hazards present when using the Liquid Controls Meter on LPGas and other products. The reading of these warnings and the avoidance of such hazards is strictly in the hands of the owner-operators of the equipment. Neglect of that responsibility is not within the control of the manufacturer.
Publication Updates and Translations
The most current English versions of all Liquid Controls publications are available on our web site, www.lcmeter.com. It is the responsibility of the local distributor to provide the most current version of LC manuals, instructions, and specification sheets in the required language of the country, or the language of the end user to which the products are shipping. If there are questions about the language of any LC manuals, instructions, or specification sheets, please contact your local distributor.
2
Safety Procedures
Be Prepared
! WARNING
• Before using this product, read and understand the instructions.
• All work must be performed by qualified personnel trained in the proper application, installation, and maintenance of equipment and/or systems in accordance with all applicable codes and ordinances.
• When handling electronic components and boards, always use proper Electrostatic Discharge (ESD) equipment and follow the proper procedures
• Make sure that all necessary safety precautions have been taken.
• Provide for proper ventilation, temperature control, fire prevention, evacuation, and fire management.
• Provide easy access to the appropriate fire extinguishers for your product.
• Consult with your local fire department, state, and local codes to ensure adequate preparation.
• Read this manual as well as all the literature provided in your owner’s packet.
• Save these instructions for future reference.
• Failure to follow the instructions set forth in this publication could result in property damage, personal injury, or death from fire and/or explosion, or other hazards that may be associated with this type of equipment.
Observe National and |
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Local Codes |
! WARNING |
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North America - Installations must be in full accordance with the National Electrical Code (US) or the Canadian Electrical Code respectively to maintain the hazardous location ratings on the product.
Outside of North America - Installations must be in full accordance with EN 60079-14 to maintain the hazardous location ratings on the product. Use Ex d certified cable glands only. For ambient temperatures above 70ºC, use field wiring rated 20ºC above the maximum ambient temperature.
WARNING: Explosion Hazard -
Substitution of components may impair suitability for hazardous area applications.
WARNING: Explosion Hazard -
When in hazardous locations, turn power OFF before replacing or wiring modules.
WARNING: Explosion Hazard -
Do NOT disconnect equipment unless power has been switched OFF or the area is known to be Non-Hazardous.
Safely Evacuate |
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Piping System |
! WARNING |
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Before disassembly of any meter or accessory component:
•All internal pressures must be relieved and all liquid drained from the system in accordance with all applicable procedures.
•Pressure must be 0 (zero) psi.
•Close all liquid and vapor lines between the meter and liquid source.
Failure to follow this warning could result in property damage, personal injury, or death from fire and/or explosion, or other hazards that may be associated with this type of equipment.
3
General Information
General Information
The Liquid Controls Pulse Output Device (POD) converts the rotary motion of the Liquid Controls Positive
Displacement Flowmeter into electronic pulses. This allows the meter to interface with a wide variety of electronic monitoring devices and control equipment. The POD operates in standard and bidirectional flow applications.
The POD mounts directly to the front cover of any Liquid Controls meter in place of the packing gland. The motion of the meter’s blocking rotor is magnetically coupled through a stainless steel wall to the electronics compartment of the POD. This eliminates the dynamic seal of the packing gland and isolates the electronics from the process fluid in the meter.
Check Each Shipment
Before installation, check your shipment against the packing list and ensure that no parts are missing. The packing list is inside the red information packet along with the Installation and Operation Manuals.
Inside the electronics compartment, an optical shaft encoder converts the rotary motion into a high resolution, twochannel, quadrature square wave. Both outputs are driven by field effect transistors (FETs) and switch from zero volts in the “ON” state to the user’s power supply voltage in the “OFF” state. As supplied from the factory, there is a 2.2KΩ pull-up resistor on each output which can be removed from the circuit in the field to produce a true “open drain” output. As open drain devices, the outputs can sink up to 100 mA in the “ON” state and sustain up to 30 VDC in the “OFF” state.
The electronics compartment also serves as a conduit junction box. The POD has an O-Ring sealed, threaded cover. The standard wire entrance is a ½-14 NPT female hub which accepts threaded conduit or a cable gland. A screwtype, removable, terminal block on the circuit board facilitates wiring of the unit. With the wiring entrance sealed and the cover in place, the housing has a weatherproof rating of NEMA 4X.
POD Models
There are five POD models available.
POD1 |
POD3 |
POD5 |
Fork Drive with Buna-N O-Ring, |
Blade Drive with Buna-N O-Ring, |
Fork Drive with Buna-N O-Ring, |
100 PPR Quad Pulser, 9 to 30VDC |
100 PPR Quad Pulser, 9 to 30VDC |
100 PPR Quad Pulser, 5 to 24VDC |
POD2 |
POD4 |
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Fork Drive with PTFE O-Ring, |
Blade Drive with PTFE O-Ring, |
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100 PPR Quad Pulser, 9 to 30VDC |
100 PPR Quad Pulser, 9 to 30VDC |
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Output Signal Resolutions
M & MA Series
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Pulses/ |
Pulses/ |
Max Output - kHz |
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Meter |
Gallon/ |
Litre/ |
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@ max flow rate |
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Channel |
Channel |
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single channel |
single channel |
(GPM) |
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MA-4 |
1,223.7 |
323.4 |
1.22 |
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M-5, MA-5 (3:1) |
407.9 |
107.8 |
0.41 |
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M-5, MA-5 (1:1) |
1,223.7 |
323.4 |
1.22 |
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M-7, MA-7 |
555.5 |
146.8 |
0.93 |
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M-10 |
555.5 |
146.8 |
1.39 |
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M-15, MA-15 |
205.8 |
54.4 |
0.69 |
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M-25 |
205.8 |
54.4 |
1.03 |
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M-30 |
74.2 |
19.6 |
0.43 |
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M-40 |
74.2 |
19.6 |
0.53 |
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M-60 new style |
39.8 |
10.5 |
0.40 |
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M-60 old style |
25.5 |
6.7 |
0.26 |
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M-80 |
39.8 |
10.5 |
0.53 |
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MS Series
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Pulses/ |
Pulses/ |
Max Output |
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Meter |
Gallon/ |
Litre/ |
- kHz |
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Channel |
Channel |
@ max flow rate |
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single channel |
single channel |
(GPM) |
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MS-7 |
555.5 |
146.8 |
0.93 |
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MS-15 |
205.8 |
54.4 |
0.69 |
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MS-25 |
205.8 |
54.4 |
1.03 |
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MS-30 |
74.2 |
19.6 |
0.43 |
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MS-40 |
74.2 |
19.6 |
0.56 |
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MS-75 |
25.5 |
6.7 |
0.30 |
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MS-120 |
15.8 |
4.2 |
0.26 |
If using both channels and rising edge only, multiply the pulses per unit and maximum kHz by a factor of two.
For LCR applications using both channels and the rising and falling edge, multiply the pulses per unit and maximum kHz by a factor of four.
4
Specifications and Dimensions
Specifications
Voltage
• 9 to 30 VDC; POD5 is 5 VDC
Current Supply maximum
• 50 mA
Output Signal Resolution
•100 pulses per channel per revolution, unscaled
See table on page 4
Square Wave
Single channel output
• Channel A or channel B
Quadrature channel output
• Channel A and channel B
Pulse Timing
• Nominal 50% on and 50% off
Rise/Fall Time of Pulse
• <5 µs
Output
•Current sinking 100 mA maximum in “ON” state
•V+ supply @ 2.2 KΩ in “OFF” state.
•Optional Open Drain FET (Field Effect Transistor).
•FET rating (drain to source voltage) 30 VDC maximum
Pulse Transmission Distance
• 5,000 feet (1,524 meters)
Pulse Output Fidelity
•ISO 6551 Level A
•API MPMS Chapter 5.5; Level A
•OIML R117-1
•Measurement Canada’s SVM-1
Materials of Construction
•Aluminum Alloy ADC12
•Powder Coat: Corro-Coat PE 74-141 Polyester
Cable Entry
• ½"-14 NPT
Operating Temperature Range
• -40 to 176 °F (-40 to 80 °C)
Humidity Range
• 0-100% non-condensing
Shock
• 50 G for 10 ms
Vibration
• 1 G at 10-150 Hz
Electromagnetic Compatibility (EMI, RFI, etc.)
POD with PC Board 84120
•EU Directive 2004/108/EC (EMC)
•IEC 61000-4-2
•IEC 61000-4-3
•IEC 61000-4-5
•IEC 61000-4-6
•IEC 61000-4-17
•IEC 61000-4-29
•IEC 61000-6-3
•ISO 7637-2
POD with PC Board 81999
• IEC 801 standard
Dimensions
Front |
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Side |
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5
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