Hardware Specifications for IFR Gas Mixer
(Doug Wright, wright@slac.stanford.edu)

MKS manuals and data sheets:  http://www.mksinst.com/pdf/

Flow Control
------------
MKS Type 246 Controller Readout
MKS 2179 Mass Flow Controllers (has NUPRO positive shutoff valve)
http://www.mksinst.com/cgi-bin/product.exe?pid=1179A
  Max              gauge
  SCCM             factor
 10000 Freon        100   2179A 14C R1BV
  5000 Isobutane     50   2179A 53C R1BV
  5000 Argon         50   2179A 53C R1BV
  2000 Spare        100   2179A 

Flow Monitors
-------------
MKS Type 660 mod 120 Readout
MKS Type 358c flow monitor
  MAX
  SCCM
 10000 Freon         358C 10000 RV
  5000 Isobutane     358C 05000 RV
  5000 Argon         358C 05000 RV
  2000 Spare

  5000 Output flow 358C 14024 (has positive shutoff valve)

Pressure Monitor
----------------
MKS Type 660 mod 120 Readout
(same transducer for all pressure measurements)
MKS Type 750B RDP CD 2GA pressure transducer
  0-10v
  0-250 psi

Note:
=====
MKS 358c flow meter replaced by 179A
http://www.mksinst.com/MD1.html
accuracy 1% of full scale
MKS Main (Massachusets) 800-227-8766
    Local (San Jose)    408-750-0300
Other: Sunnyvale Valve & Fitting 408-734-3145

558  LxH mm 181x135
179 124x140
358 149x122

shutoff valves
standalone Nupro SS-4BK-V51-1C
integral Nupro N53114 6LV-RD6901-C

Interlock Limits
================
PTI&II Sensors MKS 146
High limit 1700 torr
Low  limit 1000 torr

Cycler high 1600 torr
       low  1500
Input gases MKS 660

OLD
       flow       pressure
        high  low  high low
Spare   1100  800  50    0
Argon   1900 1500  60   16
Iso.    1100  800  50   15 before 6-19-03
                        12 6-19-03 
Freon  10500 8000  60   15
Mix    75000 -620  20   -2

SLD hardware
------------
Sierra flo-box series 900 readout module (one)
Sierra side track III 800 sccm Ar controller
Sierra 840L 50 sccm isobutane controller


              psi psi
       sccm   in  out
iso     50    21   1   840L-2-0V1-sv1-e-v1-s1
co2    500    25   0   840L-2-0N1-sk1-e-v1-s1
Ar     800    
Freon 1000    25   0

MKS 660 Readout
-------
HH and HL are hysteresis settings for the high and low setpoints
These control how the alarms are DE-activated. 
When a value exceeds the set point value the alarm is activated.
The alarm is not deactivated until it falls below the set point + hysteresis.