Content Comparison

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Description	Qty	Source	Part Number
Ion Pump Controller	4	Gamma	SPC-1-P-S-1-US110-E-S-N
Ion Pump	4	Gamma	3SDI1V5KNN (3S TiTan)
Air Cables	4	Gamma	10K-SC10-10K (10 m)
Vacuum Cables	4	Custom

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Note there are two pumps per cryostat. One will be operated and the second will sit idle as a backup.

Each pump has a dedicated controller.

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Relevant Functional Block Diagram

to be added

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	Action	Notes
1	Green controller 1: take pressure measurement	Value reported as telemetry (see below)
2	Green controller 2: take pressure measurement	Value reported as telemetry (see below)
3	Red controller 1: take pressure measurement	Value reported as telemetry (see below)
4	Red controller 2: take pressure measurement	Value reported as telemetry (see below)
5	Green controller 1: turn pump on
6	Green controller 1: turn pump off
7	Green controller 2: turn pump on
8	Green controller 2: turn pump off
9	Red controller 1: turn pump on
10	Red controller 1: turn pump off
11	Red controller 2: turn pump on
12	Red controller 2: turn pump off

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Description

File

Source

Snippit from device manual explaining simplicity of telnet connection.

SG tested this with PuTTY and it works; simplest command to test is the device name:

Code Block
spc 01

which should return:

Code Block
OK 00 SPC2

From page 14 of “SPC Controller Manual”, posted just above.

Full command list starts on page 19 of same manual.

(Steve is annotating the command list for KPF’s needs)

Python code that Steve lifted from web, slightly modified, and found it worked!

Key part in here (I think) is the command structure; this is the 'Read Pressure' command:

Code Block
s.send(('spc 0B' + "\r\n").encode())

View file

name	Gamma_spc_from_web.zip

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Description	File
Enable the high pressure resolution mode (this is a front-panel-only setting).	Image Added