Operating Manual - John Morris Scientific
Operating Manual - John Morris Scientific
Operating Manual - John Morris Scientific
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Ultra-Low Refrigerated Circulators<br />
Return flow safety device<br />
ext SERIAL ALARM STAND-BY REG+<br />
Pt100<br />
E-PROG<br />
T16A<br />
T16A<br />
T1.25A<br />
13<br />
14<br />
Inputs/Outputs<br />
>SV-Out : Backflow<br />
Chan.1 : xxxxxxx<br />
Chan.2 : xxxxxxx<br />
(see page 50)<br />
If the liquid levels in the circulator bath and the external<br />
system are at different heights, overflowing must be<br />
prevented after the power has been turned off.<br />
Flood hazard!<br />
For this reason, solenoid valves for loop circuit or shut-off<br />
valves can be integrated in the loop circuit.<br />
Connect the valve to the connector (13).<br />
If socket (14) is used:<br />
In menu >Inputs/Outputs< set the<br />
menu item >SV-Out< to >BackflowControl< (see page 36).<br />
IMPORTANT: Measures for external control<br />
For external control and temperature measurement an external<br />
Pt100 sensor must be connected to the socket (17) on the rear of the<br />
circulator.<br />
Order No. Description Material cable<br />
8 981 003 200 x 6 mm dia., stainless steel 1.5 m<br />
8 981 005 200 x 6 mm dia., glass 1.5 m<br />
8 981 006 20 x 2 mm dia., stainless steel 1.5 m<br />
8 981 010 300 x 6 mm dia., stainless steel 1.5 m<br />
8 981 013 600 x 6 mm dia., stainless steel/Teflon 3 m<br />
8 981 014 1200 x 6 mm dia., stainless steel/Teflon 3 m<br />
8981103 Extension cable for Pt100 sensor 3.5 m<br />
8 981 020 M+R in-line Pt100 sensor<br />
The M+R in-line Pt100 sensor is a flow sensor and can be installed in<br />
the loop circuit.<br />
Pt100<br />
M+R<br />
23
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