

molbox RFM Reference Flow Monitor
Supplier: Iconic Engineering Limited
Brand: Fluke
Category: Calibration
Sub Category: Flow Calibration
Out of Stock Ask for Pricemolbloc flow elements are connected to molbox RFM Flow Monitors with two pressure connections and one data line. molbox RFM Flow Monitors read calibration data off the molbloc EEPROM and measures molbloc upstream and downstream pressure with a built-in high accuracy Reference Pressure Transducers (RPTs). An ohmic measurement system reads the resistance of the molbloc platinum resistance thermometers from which molbloc temperature is calculated. Using the molbloc calibration data, pressures, temperature and gas properties stored in molbox RFM memory, the flow rate of the gas flowing through the molbloc is calculated. For molbloc-L flow elements, a microrange option is available to increase flow measurement resolution and accuracy under 10 % FS of the flow range.
molbox RFM and molbloc flow elements are useful in a variety of measurement, test and calibration applications in which highly accurate measurement of low gas flows is needed. molbox RFM is specifically designed for applications in which a highly compact presentation, great rangeability and reduced cost are the primary considerations. A second model, molbox1+, is available for applications in which lowest possible uncertainty is the top priority. To configure your mass flow calibration system, see the pages that follow to select the molbloc and pressure dependent calibrations to best cover your flow ranges and pressure conditions. molstic mounting systems and COMPASS® for molbox Flow calibration software are available to complete the system.
Features
Key Features:
- Covers the flow range of 1 sccm to 100 slm with molbloc-L, and up to 5000 slm with molbloc-S
- Select from 20 different gases
- Accredited measurement uncertainty of ± 0.5 % of reading with up to 100:1 rangeability
- Internal valving for on-board purge, leak test and tare support
- Includes advanced measurement functions such as totalize, average, hi/lo and deviation
- Complete front panel control and RS232 and IEEE-488 remote communications
- Measures mass and volume flow with user setable reference pressure and temperature conditions
Specifications
molbox RFM Reference Flow Monitors |
||
|
molbloc-L (ranges 1E1-L thru 3E4-L) |
molbloc-S (all ranges) |
Measurement update rate
|
1 second |
1 second |
Range |
to molbloc full scale depending on gas and molbloc pressure dependent calibration type (see molbloc-L range sheet) |
The flow related to 20 kPa to 200 kPa absolute (3 psia to 30 psia) or 50 kPa to 500 kPa absolute (7 psia to 70 psia) upstream (see molbloc-S range sheet) |
Resolution |
0.01 % FS |
± 0.01 % of reading |
Linearity |
± 0.23 % of reading from 10 % to 100 % FS, ± 0.023 % FS under 10 % FS |
± 0.25 % of reading |
Repeatability |
± 0.1% of reading from 10 % to 100 % FS, ± 0.01% FS under 10 % FS |
± 0.1 % of reading |
Precision1 |
± 0.25 % of reading from 10 % to 100 % FS, ± 0.025 % FS under 10 % FS |
± 0.3 % of reading |
Predicted stability2 |
± 0.15 % of reading from 10 % to 100 % FS, ± 0.015 % FS under 10 % FS |
± 0.2 % of reading |
Measurement uncertainty3
|
± 0.5 % of reading from 10 % to 100 % FS, ± 0.05 % FS under 10 % FS |
± 0.5 % of reading from 50 kPa to 500 kPa, ± 0.5 % of the flow @ 50 kPa from 20 kPa to 50 kPa |
molbox RFM with Microrange option |
||
|
molbloc-L (ranges 1E1-L thru 3E4-L) |
molbloc-L (ranges 1E5 only) |
Measurement update rate |
1 second |
1 second |
Range |
0 to molbloc full scale depending on gas and molbloc pressure dependent calibration type (see molbloc-L tables) |
0 to molbloc full scale depending on gas and molbloc pressure dependent calibration type (see molbloc-L tables) |
Resolution |
0.01 % FS, 0.001 % FS under 10 % FS |
0.01 % FS |
Linearity |
± 0.23 % of reading from 1 % to 100 % FS, ± 0.0023 % FS under 1 % FS |
± 0.25 % of reading from 5 % to 100 % FS, ± 0.0125 % FS under 5 % FS |
Repeatability |
± 0.1 % of reading from 1 % to 100 % FS, ± 0.001 % FS under 1 % FS |
± 0.2 % of reading from 5 % to 100 % FS, ± 0.01 % FS under 5% FS |
Precision1 |
± 0.25 % of reading from 1 % to 100 % FS, ± 0.0025 % FS under 1% FS |
± 0.32 % of reading from 5 % to 100 % FS, ± 0.016 % FS under 5 % FS |
Predicted stability2 |
± 0.15 % of reading from 1 % to 100 % FS, ± 0.0015 % FS under 1 % FS |
± 0.2 % of reading from 5 % to 100 % FS, ± 0.01 % FS under 5 % FS |
Measurement uncertainty3 |
± 0.5 % of reading from 1 % to 100 % FS, ± 0.005 % FS under 1 % FS |
± 0.5 % of reading from 5 % to 100 % FS, ± 0.025 % FS under 5 % FS |
Includes
Includes:
Model Name | Description |
---|---|
molbox RFM |
molbox RFM Reference flow monitor Includes:
|
5141-100 |
molbox RFM, molbloc 5E1-L 10 to 100 sccm Included:
|
5141-1K |
molbox RFM, molbloc 5E2-L 100 to 1,000 sccm Included:
|
5141-10K |
molbox RFM, molbloc 5E3-L 1 to 10 slm Included:
|
5141-50K |
molbox RFM, molbloc 3E4-L 5 to 50 slm Included:
|
5142-1K |
molbox RFM-M, molbloc 5E2-L 10 to 1,000 sccm Included:
|
5142-10K |
molbox RFM-M, molbloc 5E3-L 0.1 to 10 slm Included:
|
5142-50K |
molbox RFM-M, molbloc 3E4-L 0.5 to 50 slm Included:
|
5144-50K |
molbox RFM-M, molblocs 5E2-L and 3E4-L10 sccm to 50 slm Included:
|
Accessories
Accessories common to all models:
Accessory | Description |
---|---|
MFC-CB Control Box |
Includes: |
COMPASS for molbox software |
Calibration assistance software for molbloc/molbox users |
molstic-L Mounting Systems |
For molbloc-L Mass Flow Elements |
molstic-S Mounting System |
For molbloc-S Mass Flow Elements
|
RFM-RMK |
Rack mount kit |
RFM 02 |
Microrange |
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