See DAQ Wiring Box
See Manual - Refractometers for information about handheld refractometers and software usage.
We no longer use inline refractometers. This page is here for historical reference only.
Historically, the AFAB model PR-111 refractometer was used in cryonics. Calibration was very complex and prone to failure. Recently, a change has been made to Atago. Our inline refractometers are Atago model CM-800a. The output is 4-20 mA.
The Atago CM-800a has 3 round connector ports on the bottom. One of them is the recorder output terminal, an Omron M12 round connector, 4 pin, B-Inverse coding, female receptacle. A recorder cord was purchased from Atago, model RE-5635, M12 male plug on one end and 2 spade connectors on the other. The spade connectors were cut off, and an M12 female connector attached (3-2271118-1). This connects to the male plug (3-2271135-2) on the wiring box and allows quick substitution of cords.
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