Rapidlogger Mini - Job Monitoring System
The Rapidlogger Mini is a compact, low-cost job monitoring and recording system for single-pump cementing, acidizing and general pumping units. It measures, displays and records pump pressure, pump rate, total volume and slurry density, writes the job to removable flash memory, and needs no PC or operator training. If a laptop is connected, the RapidVu software shows the job live and prints the job report.
Who uses it
Small and mid-size cementing and acid contractors, pump unit builders who want instrumentation fitted at the factory, and service companies that need a recorder on a single-pump truck or skid without the channel count of the full Rapidlogger. The package is small enough for the control cab of a wireline, slickline or coiled tubing truck as well.
What it measures
- Pump pressure from a wing-union or NPT pressure transducer in the treating line, with zero and span set from the keypad
- Pump rate and total volume from a proximity-switch stroke counter on the pump shaft or plunger, or from a flowmeter, with the pump displacement entered once
- Slurry density from a radioactive or Coriolis densitometer, or calculated from the mix
- Up to four analog and four frequency or depth inputs in total, so temperature, tank level or a second rate can be added
In the cement or acid pump mode the screen shows pressure, density, total volume and rate. The unit can also be set to trip the pump when the pressure exceeds a preset high limit, using its solid-state relay output (see Tech Note 57).
How it works
The Mini runs a real-time operating system on a rugged microprocessor, so it is on and recording within seconds of power-up and cannot crash during a job. High-speed sampling and digital signal processing remove pump pulsation noise from the recorded pressure and rate, which makes the traces clean enough for the job report without smoothing by hand.
Every job is written to an SD card as a plain text file named by date. The data can be copied to a USB stick on the unit, downloaded over the network, or opened in Excel. The large internal memory holds many months of jobs.
Software
RapidVu runs on a Windows PC and shows real-time graphs and dials, replays recorded jobs and prepares the job report in Word with a few clicks. It connects over Ethernet, WiFi or serial and can output WITS data to a third-party system. The PC is optional: the Mini records the whole job on its own.
Specifications
| Operating Temperature: | -40C to 70C |
| Operating Environment: | NEMA 4X |
| Analog Inputs: | 4, 16 bit |
| Frequency / Depth Inputs: | 4 max |
| Display: | LCD with backlight |
| Computer Interface: | Serial, Ethernet, WiFi |
| Power: | 12/24 VDC, 110/240 VAC |
| Job Memory: | 16 GB |
Downloads
- Rapidlogger Mini datasheet (PDF)
- Rapidlogger User Manual Rev AG (PDF) or the online manual
- RapidVu software download
Related tech notes
- Tech Note 11: Variable Settings for Cementing on Rapidlogger Units
- Tech Note 17: Calibrating Pump Total and Rate Variables
- Tech Note 103: Frequency Inputs and Pump Rate Variable Mapping
- Tech Note 104: How Analog Sensor Scaling (Multiplier and Offset) Works
- Tech Note 57: Wiring and Setup for Using a Rapidlogger for Over Pressure Shutdown of a Pumping Unit
- Tech Note 35: Setting Up Rapidlogger With Flowmeters
- Tech Note 26: Creating Quick Job Report from RapidVu
Related products
- Rapidlogger for cementing, frac and pumping units (double-pump and higher channel counts)
- Rapidlogger Max for fracturing units
- RapidDCC cement density cruise control
- Upgrade discount for existing Rapidlogger owners
Ask about the Rapidlogger Mini
For a quotation, a sensor list for your unit or help choosing a configuration, email websales@rapidlogger.com, call (713) 574-1052 or use the contact page. Rapidlogger Systems is in Stafford, Texas, and ships worldwide.
