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.
MCRWD-40SLPM-TFTRD-DB15-MODBUS-485-54X54-SAE-EPDM-CC
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