Honeywell Elster American Meter RVP-FI Plastic Remote Volume Pulser 52870K161 for AL425/AC630 Gas Flowmeters
Brand: Honeywell Elster
Model: 52870K161 HOT
Switch type: 1 A-type normally open single-pole single-throw switch
Pulse output: 1 pulse per revolution
Action time: 0.3 milliseconds
Contact bounce time: 0.3 milliseconds
Initial contact resistance: 100Ω
MAX working voltage: 24V AC/24V DC
MAX operating current: 100mA
Power supply: External power supply
Operating temperature: -40°C to +70°C

Honeywell Elster American Meter RVP-FI Remote Volume Pulser
Designed for diaphragm and rotary gas meters with front-mounted registers.
Basic Information
The RVP-FI features a normally open (Form A) reed switch that directly captures accurate pulse output from the register drive, compatible with most diaphragm gas meters. Its magnet-activated reed switch maintains circuit integrity through dry contact closure, with output transmitted via an integral 12-foot cable. The cable also includes pre-wired leads for tamper detection and common connection, enabling convenient tamper monitoring. The device has passed stringent life and environmental testing, ensuring stable and reliable performance.
Application Scenarios
Ideal for low voltage/low current applications including:
- Transmitting data to Automatic Meter Reading/Advanced Metering Infrastructure (AMR/AMI) systems
- Sending data to remote totalizers
- Flow rate recording
- Controlling flow control loops
Compatibility
Can be mounted on:
- Front-registered diaphragm meters from Elster American Meter, including models AL-175, AT-210, AT-250, AM-250, AC-250, AL-425, AC-630, etc.
- ANSI class 250 and ANSI class 400 diaphragm meters manufactured by Invensys/Equimeter/Rockwell and Actaris/Schlumberger/Sprague
- All rotary gas meters from Elster American Meter
Installation Instructions
The RVP-FI mounts to the gas meter through the four existing holes normally used to attach the register box. The register and register box are then mounted to the pulser, rather than directly to the gas meter. Driven by an actuator that meshes with the meter’s register drive, it is compatible with 1/8″, 21/64″ and 0.05m³ drive units. When retrofitting to rotary meters, an additional mounting kit #93179K007 is required.
Technical Specifications
| Parameter | Details |
|---|---|
| Model | 52870K161 |
| Switch Type | 1 Form A SPST NO (Normally Open) |
| Pulse Output | 1 pulse per revolution |
| Operate Time | 0.3 ms |
| Contact Bounce | 0.3 ms |
| Initial Contact Resistance | 100Ω |
| Maximum Operating Voltage | 24 VAC / 24 VDC |
| Maximum Operating Current | 100 mA |
| Power Supply | External |
| Operating Temperature | -40°C to +70°C Note: Always verify the operating temperature range of the gas meter, which may be more restrictive |
Ordering Information
The RVP-FI can be installed directly on new gas meters, or ordered separately as a retrofit kit. Each kit includes mounting hardware, seals and a 12-foot cable, but does not include the register.
| Brand |
AMCo ,Honeywell |
|---|




