WPG-1SC Wireless Pulse Generator

WPG-1SC Wireless Meter
Pulse Generator

The WPG-1SC Wireless Meter Pulse Generator is SSI’s wireless Pulse Link to the ITRON Gen5/Riva meter.  It integrates AMI smart meter technology with legacy KYZ pulse metering. Using its own dedicated Wifi network, the WPG-1SC receives usage data from the Riva's HAN device, interprets power usage, and converts it into KYZ pulses. With the WPG-1SC, pulses are synthesized without having an actual hardwired KYZ output in the meter.  By using the WPG-1SC, utilities can implement the new advanced AMI meters and still provide pulses to customers that may need them.

The WPG-1SC features integral Wifi radio module and two KYZ pulse outputs, and one KY output, in a NEMA 4X polycarbonate enclosure.  As the WPG-1SC receives periodic data from utility’s meter, the data is read and consumption is monitored.  Accumulated energy is computed, and pulses are outputted according to a selected pulse value.  Pulses may be kWh, kVAh, kVARh, both Delivered or Received Energy.

All system settings are programmed through a USB Programming Port using the SSI Universal Programmer software.  Settings include pulse type, pulse value, meter multiplier, output mode, and pulse timing. The KYZ outputs are selectable as either Form A (2-Wire) or Form C (3-Wire) and operates in either the momentary or toggle mode, respectively. The momentary mode has six pulse width time settings: 25mS, 50mS, 100mS, 200mS or 500mS and 1000mS. The toggle mode toggles back and forth to the opposite state upon each new pulse being generated. There are two LED’s, one red and one green, for each pulse output which displays pulse output status.

The output pulse type and value are selectable from 1 to 99999 watt-hours, var-hours, VA-hours per pulse, either Delivered or Received.  A meter multiplier of 1 to 99999 may be programmed into the WPG-1SC. 

A 30mS fixed minimum-off time delay prevents pulses from occurring too rapidly. Bright red, yellow and green LEDs monitor the system communications status and provide an easy and immediate visual system check without test equipment.

The WiFi module must be paired or “provisioned” with the AMI meter’s Wifi radio, a process that is performed by the participating utility or on the utility’s website. Once paired with the meter, the WPG-1SC will begin receiving information from the meter and generating pulses.

The WPG-1SC is compatible with Self-Contained or Instrument-rated electric meters. The WPG-1SC's USB programming port is used to enter the specific site’s meter multiplier from 1 to 99999. In addition, the WPG-1SC can be configured for Normal mode (kWh delivered only) for unidirectional energy flow, or for Signed mode (kWh delivered and received) for bi-directional energy flow. The WPG-1SC also supports End-Of-Interval capability with a Form A (2-wire) output for intervals over a wide range.  Interval lengths and pulse widths are separately programable.


Power Input: 120-277 VAC. Burden: 10 mA ~12VA
Input: WiFi Network with AMI meter – Point to Point configuration

Two Form A (2-Wire) or Form C (3-wire) and one Form A Solid State dry-contact outputs rated at 100mA at 120V, 800mW maximum, fused at .1A

Maximum Pulse Rate: ≈15 Pulses per second (Form C)
≈10 pulses per second (Form A)
Minimum time between output pulses:30ms
Form A Pulse Width: 25, 50, 100, 200, 500, 1000 mS
Output Pulse Values: 1-99999 Wh/pulse
End of Interval Output

1 Form A (2-wire) output for EOI

Interval Lengths:

1,5,10,15,30,60 minutes

Interval Pulse Widths:

50,100,250,500,1000, 2000, 5000, 10000mS

Mounting: Any position

9.5’’ wide, 11.5’’ high, 4.5" deep

Weight: 8 pounds

Temperature Range:

-38º C to +70º C, -38.4º F to +158º F

Humidity: 0 to 98% non-condensing

Available Options
Input Voltages:

Contact factory


NEMA 4X polycarbonate raintight and dustproof enclosure available. 10.0” high, 8.0” wide, 4.0” deep, includes mounting plate

All specifications are subject to change without notice.