Brooks Series Digital Thermal Mass Flow Controllers and Meters
About this part
SLA5800 is the Brooks Instrument elastomer-sealed digital thermal mass flow controller and mass flow meter family covering SLA5850, SLA5851, SLA5853 controller models and SLA5860, SLA5861, SLA5863 meter models. The series is used for advanced gas handling and general process gas measurement or control, with exact gas, range, valve package, process connection, seal material, and communication protocol determined by the configured model code and unit label
Configurations vary. Verify the exact unit before choosing a replacement.
Application classSemiconductor/high-purity gas delivery
CategoryFlow Control
Specifications
Identification
Device type
Elastomer-sealed digital thermal mass flow controller or meter for gases
Controller models
SLA5850, SLA5851, and SLA5853
Meter models
SLA5860, SLA5861, and SLA5863
Configuration
Configured-unit rule
Gas, full-scale range, process connections, seals, valve state, and digital communications vary by configured code
Applications
Application domain
Advanced gas handling, production, laboratory, analytical, chemical and petrochemical research, fuel cell, life science, and process gas control
Flow
Overall full-scale range
Less than 3 ccm to 2500 lpm N2 equivalent across the SLA5800 family
SLA5850 / SLA5860 range
0-3 ccm to 0-30 lpm N2 equivalent; up to 0-50 lpm with coplanar valve option
SLA5851 / SLA5861 range
20-100 lpm N2 equivalent, with H2 flows up to 200 lpm possible
SLA5853 / SLA5863 range
100-2500 lpm N2 equivalent
Performance
Accuracy
+/-1.0% of rate from 20-100% full scale and +/-0.2% full scale below 20% full scale up to 1100 lpm; +/-1.0% full scale above 1100 lpm through 2500 lpm
Optional accuracy
Optional S-Series accuracy is +/-0.7% of rate plus +/-0.2% full scale up to 1100 lpm
Repeatability
+/-0.20% of rate
Control range
50:1 turndown; 100:1 turndown with coplanar valve option for 1-50 lpm N2 equivalent full-scale ranges
Settling time
Less than 1 second to within +/-2% full scale for a 0-100% command step up to 100 lpm; less than 3 seconds for greater than 100 lpm through 2500 lpm
Long-term drift
Less than 0.2% per year
Mounting attitude sensitivity
Less than 0.2% full-scale maximum deviation from specified accuracy after rezeroing
Calibration
Selectable calibration curves
Storage of up to 10 selectable calibration curves
Zeroing
SLA-Series zeroing can be performed with the zero button or Brooks Service Suite software after thermal stabilization and no-flow confirmation
Controls
Analog interface
15-pin D-connector with 0(1)-5 V or 0(4)-20 mA setpoint and flow signals
Digital communication options
RS-485 / HART-based S-protocol, DeviceNet, FOUNDATION Fieldbus, Profibus, EtherNet/IP, and EtherCAT options depending on configuration and revision
Power supply
Analog option 13.5-27 Vdc; digital options vary by protocol, including DeviceNet 11-25 Vdc and FOUNDATION Fieldbus 14-27 Vdc
Valve features
Valve override, soft start, adaptive valve control, and coplanar valve options are available depending on configuration
Ratings
Pressure ratings by model family
SLA5850/SLA5860 and SLA5851/SLA5861 are listed at 100 bar / 1500 psi; SLA5853/SLA5863 are listed at 70 bar / 1000 psi; optional 300 bar / 4500 psi versions exist for 50, 60, and 61 series bodies
Operating ambient temperature
0 to 65 C
Non-operating ambient temperature
-25 to 100 C
Fluid temperature
0 to 65 C
Leak integrity
1 x 10^-9 atm scc/sec helium maximum, inboard to outboard
Materials
Wetted materials
Stainless steel wetted parts with Viton fluoroelastomers standard; optional Buna-N, Kalrez, Teflon/Kalrez, and EPDM seal materials
Connections
Process connection context
Flow-through, flange, coplanar valve, and elastomer downport connection configurations are available depending on model and configured code
Approvals
Certification context
EMC, UL Recognized, ATEX, hazardous-location, and Pressure Equipment Directive contexts are documented for applicable configurations