Mass Flow Sensor

on the heritage base construction of the superior class bypass capillary type
mass flow sensor, the Model 3810S Mass Flow Sensor centers the focus on economy
through a thorough effort towards streamlining with the view to built-in
applications. The series is one of the KOFLOC best sellers and is used by many
assembly manufacturers as a substitute for the existing float type (tapered
pipe type) flow meter.
-A low-cost, still, full-fledged sensor
based on a combination of the constant-current temperature difference detection
type with the bypass capillary type
-A large cost reduction makes Model
3810S almost rival any ex-isting float type flow meter in price.
-0 to 5VDC analog flow outputs provide
various applications such as measurements recording, control and alarm
-The sensor is mass flow type. The user
needs no troublesome calculations for flow correction due to the effects of
tempera-ture and pressure. 
– Flow range (N2 equivalent, 20/1 atm) :
  *10 SCCM–2 SLM (freely selectable)
  *3 SLM–50 SLM (freely
– Sensor : Thermal mass flow sensor
– Accuracy :
  *±2%F.S. (25)
  *±5%F.S. (25)
– Temperature coefficient :
  *±0.15 F.S./ (15–35)
  *±0.2 F.S./ (15–35)
– Repeatability : ±0.5%F.S.
– Proof pressure : 980 kPa (G)
– Allowable ambient temperature : 5–45
– Allowable ambient
humidity : 10–90% (No condensation allowed)
– Materials of parts in contact with gases
 * Body: SUS303, PTFE
 * Sealing: FKM (option: CR or NBR)
– Electric connection : 171826-5 (made by
– Flow output signal : 0–5 VDC (External
load resistance: 250 kΩ or more)
– Power supply : ±15 VDC ±5%, 60 mA
– Joint (Main unit bore) : Rc1/4
– Weight :
  * Approx. 250 g
  * Approx. 350 g
Specifications relating to the flow range (e.g., flow range, accuracy and
response) are expressed in N2 or air equivalent. The product will be built with
the primary pressure of 300 kPa or less and the secondary side open to the
atmosphere. For details on the pressure requirements, please contact us. 
Note :  The series 3810 pin
assigment has been modified from march 2000, and ia not compatible with the old
model. Please chec the following :
AMP171826-5 On The Connector 3810 side
Amp171822-5 on cable side