Application Note: Comparison of connectors & pinouts on InstruTech CVM series modules & GP Mini-Convectron ® modules.
| Manufacturer | InstruTech | GP | InstruTech | GP | GP | GP | GP | GP |
| Model | CVM211 "Stinger" | Mini-Convectron® 275 | CVM201 "Super Bee" | Mini-Convectron® 275 | Mini-Convectron® 275 | Mini-Convectron® 275 | Mini-Convectron® 275 | Mini-Convectron® 275 |
| analog output (s) | non-linear (GP-S) | non-linear (GP-S) | non-linear (GP-S), linear, + log-linear | non-linear (GP-S) + linear | non-linear (GP-S) | non-linear (GP-S) | non-linear (GP-S) | none |
| digital output (s) | none | none | RS485 + RS232 | none | none | none | none | RS485 |
| setpoint (s) | 1 | 1 | 2 | none | none | 2 | 2 | 2 |
| display | LED3-digit | none | LCD 4-digit | none | LED 3-digit | none | LED 3-digit | LED 3-digit |
| connector A | 9-pin D | 9-pin D | 9-pin D | 9-pin D | ||||
| pin 1 | relay 1 NO | relay NO | relay 1 NO | external cal in | ||||
| pin 2 | relay 1 NC | relay NC | relay 1 NC | external cal out | ||||
| pin 3 | power input | power input | power input | power input | ||||
| pin 4 | power ground | power ground | power ground | power ground | ||||
| pin 5 | non-linear output | non-linear output | non-linear output | non-linear output | ||||
| pin 6 | relay 1 common | relay common | relay 1 common | no connection | ||||
| pin 7 | relay 1 disable | relay disable | relay 1 disable | no connection | ||||
| pin 8 | signal ground | signal ground | signal ground | signal ground | ||||
| pin 9 | setpoint output | linear output | linear output | |||||
| connector B | 15-pin high density D | 15-pin high density D | 15-pin high density D | 15-pin high density D | 15-pin high density D | |||
| pin 1 | RS-485 +input (A) | no connection | setpoint 1 output | no connection | RS-485 +input | |||
| pin 2 | RS-485 -input (B) | no connection | setpoint 2 output | no connection | RS-485 -input | |||
| pin 3 | power input | power input | power input | power input | power input | |||
| pin 4 | power ground | power ground | power ground | power ground | power ground | |||
| pin 5 | non-linear output | non-linear output | non-linear output | non-linear output | no connection | |||
| pin 6 | signal ground | signal ground | signal ground | signal ground | power ground | |||
| pin 7 | RS232 Out | no connection | no connection | no connection | no connection | |||
| pin 8 | RS232 In | no connection | no connection | no connection | no connection | |||
| pin 9 | relay 1 disable | no connection | relay disable | no connection | relay disable | |||
| pin 10 | relay 1 NO | no connection | relay 1 NO | relay 1 NO | relay 1 NO | |||
| pin 11 | relay 2 NO | no connection | relay 2 NO | relay 2 NO | relay 2 NO | |||
| pin 12 | relay 2 common | no connection | relay 2 common | relay 2 common | relay 2 common | |||
| pin 13 | relay 2 NC | no connection | relay 2 NC | relay 2 NC | relay 2 NC | |||
| pin 14 | relay 1 NC | no connection | relay 1 NC | relay 1 NC | relay 1 NC | |||
| pin 15 | relay 1 common | no connection | relay 1 common | relay 1 common | relay 1 common | |||
| model numbers | ||||||||
| NPT | CVM211 G A A | 275800 | CVM201 G A A | 275850 | 275915 | 275870 | 275904 | 275527 |
| KF16 | CVM211 G B A | 275806 | CVM201 G B A | 275856 | 275922 | 275876 | 275911 | 275546 |
| KF25 | CVM211 G C A | 275807 | CVM201 G C A | 275857 | 275923 | 275877 | 275912 | 275534 |
| KF40 | CVM211 G D A | 275808 | CVM201 G D A | 275858 | 275924 | 275878 | 275913 | 275535 |
| Mini-Conflat® | CVM211 G E A | 275803 | CVM201 G E A | 275853 | 275919 | 275873 | 275908 | 275531 |
| 2-3/4" Conflat® | CVM211 G F A | 275804 | CVM201 G F A | 275854 | 275920 | 275874 | 275909 | 275532 |
| 4VCR female | CVM211 G G A | 275801 | CVM201 G G A | 275851 | 275916 | 275871 | 275905 | 275528 |
| 8VCR female | CVM211 G H A | 275863 | CVM201 G H A | 275862 | 275917 | 275867 | 275906 | 275529 |
| 3/8"VCO male KF10 (*) KF50 |
No plan to offer these fittings unless specifically requested. | 275802 275805 275809 |
No plan to offer these fittings unless specifically requested. | 275852 275855 275859 |
275918 275921 275925 |
275872 275875 275879 |
275907 275910 275914 |
275530 275533 275536 |
* Note: A KF16 flange will mate with a KF10 using an adaptive centering ring, available from KF fitting suppliers.
Functions in blue/italics are not supported on standard InstruTech modules. ( If these functions are required, contact Instrutech about providing a custom module.)
Convectron® and Mini-Convectron® are registered trademarks of Brooks Automation/Granville-Phillips
Conflat® and Mini-Conflat® are registered trademarks of Varian Vacuum
Cajon VCR and VCO are registered trademarks of Swagelock Company
InstruTech Vacuum Instrumentation
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