Alicat part number decoder

There are many ways to customize your Alicat, but added options can sometimes make your part number look like alphabet soup. We’ve compiled the listings below to help you decipher the various elements of your Alicat part number.

Most Alicat part numbers consist of a top-level part number and a group of adder codes. Top-level part number elements are separated by hyphens (-), and adder codes are separated by commas (,). A forward slash (/) separates these two groups of your Alicat part number.

Top level part numbers

Top level elements appear before the forward slash (/) in the Alicat part number, as in the example below.


Instrument Types
Primary Instrument Types
L Liquid flow meter
M Gas mass flow meter
P Pressure gauge
Secondary Instrument Types
3 Remote pressure sense port
B Battery-powered
C Flow or pressure controller
D Dual valves
E Enclosed valve
H Hammerhead valves
P Large Pneutronics valve
Q High pressure gas flow
R High-flow Rolamite valve
S Stainless sensor for corrosives
SS Stainless sensor for corrosives with 316L body
T Stream switching controller
V Enclosed valve plus pneumatic shutoff valve
W Whisper™ low pressure drop
Stock Instrument Ranges
2INH2OD Differential pressure range
2INH2OG Gauge pressure range
xCCM Liquid flow range (ccm)
EXTSEN External pressure sensor
xLPM Liquid flow range (lpm)
xPSIA Absolute pressure range (psi)
xPSID Differential pressure range (psi)
xPSIG Gauge pressure range (psi)
xSCCM Gas flow range (sccm)
xSLPM Gas flow range (slpm)
xTORRA Absolute pressure range (torr)
Display Options
D Backlit monochrome
O No display
RD Backlit monochrome remote display
RDE Backlit monochrome enclosed remote display
TFT Backlit color
TFTRD Backlit color remote display
TFTRDE Backlit color enclosed remote display
Communication Options
[no notation] RS-232 over 8-pin mini-DIN
485 RS-485 protocol
DB9x 9-pin D-sub with x pinout
DB15x 15-pin D-sub with x pinout
DNET DeviceNet
EIP EtherNet/IP
I 6-pin locking DIN plus 8-pin mini-DIN
IO 6-pin locking DIN only
ISC 4-pin locking DIN for external sensor
M12 Threaded 8-pin M12 connector plus 8-pin mini-DIN
M12O Threaded 8-pin connector only
NJ No power jack
RJ45 8-pin RJ45
Valve Options
[no notation] Default valve (controllers)
2ST 2-stage valve control
A0## Extra small proportional control valve
DS Downstream valve position
NO Normally open valve
PAR Rolamite valve parallel wound coil
PCA## Anti corrosive valve orifice size
PCV## Small Pneutronics valve orifice size
RV Detached remote valve
RVUS Remote upstream inlet valve
SV Small Pneutronics stainless valve
##x## Rolamite valve hole pattern
Build Options
[no notation] NPT threads
30PSIA Low-range sensor for gas flow (legacy)
AL Aluminum body
ALM Alarm output
##BSPP British Standard Pipe threads
CC Conformal coating
##COMP Number of welded compression fittings
DPORT Down port connections
EPDM EPDM elastomers
FFKM FFKM elastomers
HLC Helium leak check
IB Integrated barometer
IP## Ingress protection rating
IPC Integrated potentiometer control
IPJ Industrial power jack
M4MH M4 mounting holes
NESSI NeSSI-compatible flow body
xNPT Non-standard NPT threads
OXC Oxygen Cleaning
PJ Power jack
Build Options cont.
SAE# SAE threads
SE Side-mounted electronics
SG Separate ground
SIL Sulfur inert laminate
SILICONE Silicone elastomers
ST Standard temperature sensor (pressure devices only)
TMDPORT# Top-mount down port
##VCRF/##VCRM Welded VCR fittings
##VCO Welded VCO fittings
VITON FKM/Viton elastomers
X CSA Class 1 Division 2/ATEX Zone 2

Adder Codes

Adder codes appear after the forward slash (/) in the Alicat part number, as in the example below.

/CM, 102P, RIN, CIN, GAS: CH4, RANGE (85 SCFH), CLV, PU: V, TOT (99999.99 SCF), BAUD: 38400, STP: 20°C, CPNT (5, 10%), 17025, DS

Analog Type
1x 1-5 Vdc
5x 0-5 Vdc
10x 0-10 Vdc
Cx 4-20 mA
x2x Secondary signal

Analog Inputs
xIN Setpoint input

Analog Outputs
xM Gas mass flow output
xP Pressure output
xT Temperature output
xV Gas or liquid volumetric flow output

17025 ISO17025 certification (sometimes written as 17025HF or 17025LF)

AGB Absolute, guage, and baro pressure in data frame
ALHx: y High flow alarm above y setpoint
ALLx: y Low flow alarm below y setpoint
     5 5 Vdc analog output
     12 12 Vdc analog output
     24 24 Vdc analog output
     OD 500 mA open drain
AVG OFF Averaging off

BAUD: x Baud rate
BD Bidirectional flow or gauge pressure calibration

CLP Closed-loop pressure control
CLPG Closed-loop gauge pressure control
CLR Closed-loop ramp
CLV Closed-loop volumetric flow control
CPNT (x,y%) Additional calibration points

DB: x Deadband x% preset
DS Downstream valve placement

FLOW Flow rate for tuning pressure control

GAS: x Initial gas selection

HC High-accuracy flow or pressure calibration
HLC Helium leak check

ID: x RS-232/485 unit address
[IPx] Custom secondary output on industrial connector

LCK Display locked
LIQUID: x Custom liquid calibration
LVD Valve drive % shown on display

MAXAVG Maximum geometric running averaging

NONWAR Non-warranty, no returns or repairs
NTP: x Custom NTP conditions

OPL: x Overpressure limit for valve closure
OXC Oxygen cleaning

P1: x Expected inlet pressure
P2: x Expected outlet pressure
PD (x, y) Custom P=x and D=y valve tuning
PD2I (x, y, z) Custom P=x, D=y, and I=z valve tuning
POP Power over Profibus
PROFIBUS: x Profibus unit address
PRANGEx Pressure ranges of internal and external sensors
PU: x Selects flow parameter on power-up
PUB Power up with backlight on
PUGS: x Gas selection on power-up
PUL: x Pulsed analog output at x flow total
PUSP: x Setpoint on power-up
PUT: x Tare after x seconds on power-up

RANGE: x Custom calibration range
RCPNT (x,y,z) Replacement calibration points
RD: x Length of cable for remote display
REM: x Length of cable for remote electronics
RIN RS-232 input selection
RTL Right-to-left flow direction
RVD Valve drive % shown in serial data

SENIN: x External pressure sensor input signal
SR: x Streaming rate in x milliseconds
STP: x Custom STP conditions
STR Preset to streaming mode

TOT Integrated flow totalizer
TOT (x y, R/F/E) Custom resolution x and/or units y
     E Rolls over and flashes OVR error at max count
     F Freezes and flashes OVR error at max count
     R Rolls over at max count
TOTAVG Totalizer averaging
TOTBDx Bidirectional totalizers:
     TOTBD1 Negative values subtract from total
     TOTBD3 Negative values have no effect
     TOTBD4 Negative values ignored, resets at zero
TOTR Reset totalizer on selected pin

VOL: x Expected closed volume x

FastTrack Ordering

M/MC mass flow meters and controllers that ship in just 3-5 business days.
Standard or High Accuracy
Monochrome, Color, or None
Analog, RS-232, RS-485, or Modbus RTU
MD8, Locking Industrial, DB9M, DB15


2 SCCM - 500SLPM


2 SCCM - 100SLPM

Service and Support

Whether it is time for your instrument’s annual recalibration or your instrument needs a repair or upgrade,
you can fill out the Service Request Form below, email us, call us, or start a live chat session to get the service process started.

7641 N Business Park Dr. Tucson, AZ 85743

Geograaf 24
6921 EW
Duiven, The Netherlands