User Guide

7
MECHANICAL DIMENSIONS
FRONT VIEW SIDE VIEW
REAR PANEL
1. 6-pin RS485 terminal (not for pH502XY1 and mV602XY1)
2. Analog output (not for pH502XY2 and mV602XY2)
3. Power supply input
4. Alarm terminal
5. Relay 2 - second dosing terminal (pH5022XY and pH5024XY models only)
6. Relay 1 - first dosing terminal
7. Connections for Pt 100 temperature sensor
8. Connection for electrode reference
9. Connection for Potential Matching Pin
10. BNC Socket for pH or ORP electrode
11. ±5V power supply output
Unplug the meter before starting any electrical connections.
Models with 3-contact
electromechanical output relay(s)
Models with 2-contact
solid state output relay(s)