Flow Control
0154E
Brooks Instrument Four-Channel Microprocessor Control and Readout Unit
About this part
The Brooks Instrument 0154E is a legacy four-channel secondary-electronics unit for powering, reading, and controlling compatible Brooks mass-flow, liquid-flow, and pressure devices. It provides local setpoint control, master/slave blending, valve override, alarms, totalization, remote analog I/O, and RS-232 computer communication. The connected instrument performs the actual flow or pressure measurement and control; the 0154E supplies power, readout, setpoint, and supervisory functions. Brooks no longer offers the 0154 and identifies the 0250 Series as its replacement
Configurations vary. Verify the exact unit before choosing a replacement.
Key Facts
ManufacturerBrooks Instrument 0152/0154 Secondary Electronics
Part number0154E
Product family5850
Device typeFour-channel secondary-electronics control and readout unit
Configuration statusConfiguration varies
Application classIndustrial automation and process equipment
CategoryFlow Control
Specifications
Identification
| Manufacturer | Brooks Instrument |
| Model designation | 0154E; Brooks control literature also abbreviates the model as 0154 |
| Product class | Gas and liquid mass-flow secondary electronics |
Control and Readout
| Channels | 4 independent analog-device channels |
| Display | Backlit 4 × 20-character display; percentage of full scale or actual reading |
| Displayed variables | Flow rate, pressure, density, or temperature, depending on the connected device |
| Readout accuracy | 0.1% of the programmed maximum flow value |
| Programmable full-scale range | 0.000 to 99999.999 |
| Display resolution | Zero to three selectable decimal places |
| Operating modes | Local or remote operation selectable by channel |
| Front-panel functions | Setpoint, blending, valve override, channel selection, local/remote control, menu selection, and power |
| Blending | One or more slave channels can be ratio-controlled from a selected master channel |
| Valve override | Per-channel control, forced open for purge or forced closed for shutoff, independent of setpoint |
| Alarm modes | Per-channel absolute maximum, absolute minimum, and deviation-from-setpoint alarms |
| Totalizer | Per-channel totalization with a maximum count of 4,000,000,000 before rollover |
Signals
| Voltage I/O ranges | 0–5 Vdc or 1–5 Vdc; 0–10 Vdc is available with the optional I/O board and corresponding jumper configuration |
| Current I/O ranges | 0–20 mA or 4–20 mA with the optional four-channel I/O board |
| Internal signal basis | 0–5 Vdc; the optional I/O board converts other supported voltage or current ranges |
Communications
| Computer interface | RS-232 through a 9-pin D-sub connector |
| Computer-accessible parameters | Setpoint, flow reading, and valve override |
Electrical
| Power input — operating specification | 90–260 Vac, 50/60 Hz, 70 W maximum |
| Power input — approval scope | 100–240 Vac, 50/60 Hz, 100 W |
| Power output options | +15 Vdc at 2.9 A and −15 Vdc at 1.4 A maximum, or +24 Vdc at 2.5 A maximum; configuration dependent |
| Channel connectors | Four 15-pin D-sub connectors for connected mass-flow or pressure devices |
| Remote analog connector | One 25-pin D-sub connector carrying combined remote setpoint inputs and measured-signal outputs for four channels |
| External valve-control connector | One 15-pin D-sub connector |
| Fuses | Two 5 × 20 mm, 2 A time-delay fuses |
Mechanical
| Housing construction | Anodized aluminum with steel covers |
| Housing formats | Half-width 19-inch rack cassette, tabletop enclosure with optional handle, or panel mount using a bracket set |
| Cassette dimensions | 130 × 220 × 230 mm (5.1 × 8.7 × 9.1 in), height × width × depth |
| Panel cutout | 241 × 142 mm (9.5 × 5.6 in) |
Environmental
| Ambient temperature | 0–50 °C (32–122 °F) |
| Maximum relative humidity | 80% |
| Approved location | Indoor use; altitude up to 2,000 m (6,562 ft), Pollution Degree 2, Installation Category II |
Compliance
| Manufacturer-listed approvals | EMC based on EN 50082-2 and EN 50081-1; Low Voltage Directive based on EN 61010-1; CSA-NRTL/C based on CAN/CSA-C22.2 No. 1010.1-92 and ISA S82.01-1994 |
Configuration-dependent electrical options
0154E units were factory configured for either ±15 Vdc or +24 Vdc instrument power and for particular signal interfaces. Standard 0–5 Vdc operation does not require the optional I/O board; 0–10 Vdc, 0–20 mA, and 4–20 mA operation requires the optional four-channel converter board and the corresponding jumper settings. A complete configured model code or rear-panel label is therefore required before selecting replacement cables, connected instruments, or signal wiring.
Operating behavior
Independent controlEach of the four channels can operate independently with its own setpoint, engineering-unit label, full-scale value, valve state, alarm settings, and local/remote selection.
Blending modeSlave-channel setpoints are derived from the measured flow or pressure of a selected master channel and the programmed blending ratio.
Power-up behaviorEach channel can restore its memorized setpoint or start at zero; the factory default is zero setpoint after power-up.
Engineering-unit cautionChanging the displayed engineering-unit label does not perform a unit conversion; the corresponding full-scale value must be entered correctly.
Current-I/O groundingThe high-impedance signal grounds are not intended to sink current. For current I/O, the manual requires the mA grounds and readout signal grounds to be tied to power ground as specified.
Supported device families and interconnection cables
The Models 0152/0154 manual identifies these Brooks device families and cables. Cable selection remains dependent on connector and signal configuration.
| Connected device or interface | Cable lengths | Brooks cable part numbers |
|---|---|---|
| Flomega 5880 and 5890 | 3 m; 6 m | 124Z605ZZZ; 124Z606ZZZ |
| Mass Flow Series 5850/5860 and Pressure Series 5866 — Netherlands ordering | 3 m; 6 m; 12 m | 124Z236AAA; 124Z237AAA; 124Z610AAA |
| Mass Flow Series 5850/5860 and Pressure Series 5866 — USA ordering | 5 ft; 10 ft; 25 ft; 50 ft | 124Z576AAA; 124Z577AAA; 124Z578AAA; 124Z579AAA |
| Smart Mass Flow Series 5850S with digital communication | 3 m; 6 m; 12 m | 124Z893AAA; 124Z894AAA; 124Z895AAA |
| QUANTIM mass-flow meter/controller | 3 ft; 5 ft; 10 ft; 25 ft; 50 ft | 124Z054AAA; 124Z050AAA; 124Z051AAA; 124Z052AAA; 124Z053AAA |
| QUANTIM with flow plus density or temperature available | 5 ft; 10 ft; 25 ft; 50 ft | 124Z906ZZZ; 124Z907ZZZ; 124Z908ZZZ; 124Z909ZZZ |
| Personal computer RS-232 connection | 3 m | 124Z901ZZZ |
Official 5850EM-to-0154E cable compatibility
A Brooks 5850EM manufacturer manual explicitly names the 0154E and gives separate shielded-cable sets for card-edge and voltage-I/O D-sub versions.
| 5850EM interface | 5 ft | 10 ft | 25 ft | 50 ft |
|---|---|---|---|---|
| Card edge to 0154E | S124Z669AAA | S124Z539AAA | S124Z562AAA | S124Z670AAA |
| D-sub, voltage I/O, to 0154E | S124Z576AAA | S124Z577AAA | S124Z578AAA | S124Z579AAA |
Channel connector pinout
Pinout for each 15-pin channel connector. Power pins vary with the configured ±15 Vdc or +24 Vdc supply option.
| Pin | Direction | Function |
|---|---|---|
| 1 | Output | +15 Vdc or +24 Vdc |
| 2 | Input | Flow signal, current |
| 3 | Output | Setpoint, current |
| 4 | — | Not connected |
| 5 | Output | Setpoint, voltage |
| 6 | — | Setpoint ground |
| 7 | Output | Valve override |
| 8 | — | Flow-signal ground |
| 9 | — | Reserved |
| 10 | Input | Flow signal, voltage |
| 11 | — | Not connected |
| 12 | — | Power ground |
| 13 | Output | +15 Vdc or +24 Vdc |
| 14 | Output | −15 Vdc for ±15 V configuration; not connected for +24 V configuration |
| 15 | — | Not connected |
External valve-control connector pinout
Pinout for the 15-pin external valve-control connector.
| Pin | Direction | Function |
|---|---|---|
| 1 | Input | Remote valve override, channel 1 |
| 2 | — | Not connected |
| 3 | Input | Remote valve override, channel 2 |
| 4 | — | Not connected |
| 5 | Input | Remote valve override, channel 3 |
| 6 | — | Not connected |
| 7 | Input | Remote valve override, channel 4 |
| 8 | — | Not connected |
| 9 | Output | +15 Vdc or +24 Vdc |
| 10–14 | — | Not connected |
| 15 | Output | −15 Vdc for ±15 V configuration; power ground for +24 V configuration |
Remote analog connector pinout
Pinout for the 25-pin remote setpoint and measured-signal connector.
| Pin | Direction | Function |
|---|---|---|
| 1 | Output | Flow voltage, channel 1 |
| 2 | Output | Flow current, channel 1 |
| 3 | Output | Flow voltage, channel 2 |
| 4 | Output | Flow current, channel 2 |
| 5 | Output | Flow voltage, channel 3 |
| 6 | Output | Flow voltage, channel 4 |
| 7 | Output | Flow current, channel 3 |
| 8 | Input | Remote voltage setpoint, channel 1 |
| 9 | Input | Remote voltage setpoint, channel 2 |
| 10 | Output | Flow current, channel 4 |
| 11 | Input | Remote voltage setpoint, channel 3 |
| 12 | — | Not connected |
| 13 | Input | Remote voltage setpoint, channel 4 |
| 14 | — | Flow ground, channel 1 |
| 15 | Input | Remote current setpoint, channel 1 |
| 16 | — | Flow ground, channel 2 |
| 17 | Input | Remote current setpoint, channel 2 |
| 18 | — | Flow ground, channel 3 |
| 19 | — | Flow ground, channel 4 |
| 20 | — | Setpoint ground, channel 1 |
| 21 | — | Setpoint ground, channel 2 |
| 22 | Input | Remote current setpoint, channel 3 |
| 23 | — | Setpoint ground, channel 3 |
| 24 | Input | Remote current setpoint, channel 4 |
| 25 | — | Setpoint ground, channel 4 |
RS-232 connector pinout
The standard computer interface uses a 9-pin D-sub connector.
| Pin | Function |
|---|---|
| 1 | Not connected |
| 2 | TXD — transmitted data |
| 3 | RXD — received data |
| 4 | Not connected |
| 5 | Signal ground |
| 6–9 | Not connected |
Replacement and software status
Sales statusThe 0152 and 0154 secondary-electronics devices are no longer available for sale from Brooks Instrument.
Manufacturer replacementBrooks identifies the 0250 Series as the replacement family; the 0254 is the four-channel member.
Mechanical retrofitThe 0254 rack-mount kit can adapt the replacement controller and power supply to the tabletop enclosure used for the 0152/0154.
Software supportBrooks Smart DDE and Brooks LabVIEW DLL documentation continue to identify Models 0152 and 0154 as supported secondary-electronics devices.
Documentation Downloads
Local PDF copies
Installation and Operation Manual — Brooks Models 0152/0154
Local PDF download
PDF1.3 MB
Installation and Operation Manual — Brooks Models 5964 and 5850EM
Local PDF download
PDF1.2 MB
Installation and Operation Manual — Smart DDE
Local PDF download
PDF1.0 MB
Installation Manual — Brooks 0250 Series
Local PDF download
PDF3.7 MB
Data Sheet — Brooks 0250 Series
Local PDF download
PDF2.1 MB
Part Photos
12 imagesHistorical archive images for identification, labels, connectors, and condition reference, not current inventory.
Historical Listings & Prices
Historical listing data, not a current offerArchive records10Tracked historical listing records
Historical median price$280.50Based on archived listing records
Recorded price range$41.34 - $599.00Low to high recorded listing price
Local documents5PDF copies available from Sonisys
Recorded price context
The typical recorded price range is $185.70 to $577.40. Based on 10 archived listing records; not a current offer, appraisal, or confirmed sale price.
View archived listing titles
- Brooks Instruments 0154E Mass Flow Control Reader
Archived listings
Other Part Numbers & Aliases
0154E