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> Lkb biocal chart recorder type lkb 6520-7 #n
Lkb biocal chart recorder type lkb 6520-7 #n
LKB Biocal chart recorder type LKB 6520-7 #N
This chart recorder takes 5.5" wide paper. There's also a gage at the top of the paper that runs from 0 to 100 and is labelled "0.3 mA"; the vertical part of the needle of this gage is snapped off, but the horizontal part is still present and a replacement vertical indicator could potentially be mounted on it. There is an internal takeup reel for recorded chart paper. On the back of the unit are six pairs of wire binding posts labelled 0.3mA 1 through 6, and four short wires are included that can be used to connect pairs of these posts as needed. The unit takes 115V power using a rectangular recessed male two-prong connector; a power cord is not included. There's also a three-pin connector labelled "fraction collector" and a "marking channel 1" on/off switch. A cable that connects to the fraction collector connector is included, with identical connectors at each end.
A borrowed power cord was used to plug the unit in, but it couldn't be made to drive the chart paper. Other similar units in inventory also didn't respond, so it's possible that we don't know how to properly operate this unit. It was not tested with any external inputs.
One LKB Biocal chart recorder type LKB 6520-7 with a broken needle
