Optrand Sensor Model Number Generator.

Sensor Type* Pressure Range NL&H** Cable Length*** Thread Size Pressure Sealing
(A) FiberPSI (1) 0-7 bar (~100 psi) (1) 1% FS (1) 1m (3.25') (1) M8x1.0 (1) Conical Tip (118)
(C) AutoPSI-S (2) 0-70 bar (~1,000 psi) (2) 0.5% FS (2) 2m (6.5')*** (2) 1/4-20 (2) Conical Tip (60)
(D) AutoPSI-TC (3) 0-200 bar (~3,000 psi) (3) 0.25% FS   (3) M7x0.75 (3) Shoulder, Washer****
(E) AutoPSI-HT (4) 0-14 bar (~200 psi)     (4) 1/2 NPT (4) Flange, Washer****
(F) AutoPSI-TC/HT (7) 0-700 bar (~10,000 psi)     (5) M3.5x0.6 (5) O-Ring
(G) AutoPSI-DC (8) 0-100 bar (~1,500 psi)     (6) M4.5x0.5 (8) Shoulder, Taper
  (9) 0-2000 bar (~30K psi)     (7) 3/8-24  
        (8) M10x1.25  
        (9) M5x0.5  
        (A) 1/2-20 UNF 2A  
        (B) 5/16-24
Example: Model Number C21294-Q
   C - AutoPSI-S Sensor
   2 - 0-70 bar (~1,000 psi) Pressure Range
   1 - 1% Non-Linearity & Hysteresis
   2 - 2m (6.5') Fiber Optic Cable
   9 - M5x0.5 Thread Package
   4 - Flange Pressure Sealing
   -Q - Sensor for Combustion Applications

"-Q" Series Sensors
Sensors with the "-Q" model number extension are suitable for
Combustion applications. All "-Q" sensors incorporate a flame-arresting/heat-shielding element inside the sensor housing.

"-NG" and "-DE" Series Sensors
Sensors with the "-NG" and "-DE" model number extensions are suitable for
Natural Gas and Diesel engines, respectively.

Sensors for Non-Combustion Applications
Sensors without the incorporated flame-arresting/heat-shielding element are suitable for
Non-Combustion applications. Model numbers of non-combustion sensors do not include the application-specific model number extension (i.e., "-Q", "-SP", "-NG" or "-DE").

PSIplug Mountable Sensors - "-SP" Series
The
M3.5x0.6 and M4.5x0.5 sensors (the "-SP" series) can be used for combustion applications, when mounted in the PSIplug - Optrand Measuring Spark Plug. The flame-arresting/heat-shielding element is incorporated inside the PSIplug.

Pressure Sealing
Washer or sealing ring is required for sensor housings with shoulder (middle) or flange (back) pressure sealing surfaces.

Sensitivity Values
AutoPSI-S and FiberPSI sensors are shipped with four sensitivity values, obtained at four different temperatures: 25C, 100C, 150C, and 200C.
The AutoPSI-TC sensors - temperature compensated - are shipped with one sensitivity number.

Footnotes
       * Not every sensor model number combination is available
     ** NL&H - Non-Linearity & Hysteresis.
          0.5% under non-combustion conditions, at constant temperature, (0.25% available on request)
          1% under combustion conditions, i.e., varying temperature within one combustion cycle)
   *** Custom cable length available on request
 **** Washer or sealing ring required
6121, 6123, 6125 and 6051B are model numbers of sensors made by Kistler Instrument Corp.