19
Introduction
3.5 Interface connectors
Interface connectors are located on the left side of the controller housing.
The sampler comes standard with four interface receptacles:
•
12 VDC (Power Input)
•
Auxiliary (Multi-purpose input/output port)
•
RS232 (Serial communications port)
•
Thermal (Control port for heating and cooling system)
In addition, the sampler can be used with a wide variety of optional devices including
level and flow sensors, rain gauge, pH/ORP, D.O., temperature, conductivity, Modem,
4–20 mA current loop, and three additional analog inputs of 4–20 mA or -4.0 VDC to
+4.0 VDC.
Note: All mains powered equipment that connects to the controller terminals must be NRTL listed.
Figure 3 Door latch
1
Lock nut
2
Door tension adjustment screw
Goodnal STP ST041 Pre Treatment (Sigma 900 MAX All Weather Refrigerated Sampler) Vendor Manual
Q-Pulse Id VM373
Active 29/10/2013
Page 19 of 122
