Probe and Relay Box Wiring - GMP251 - GMP252

Relay Box for GMP250 Carbon Dioxide Probes Quick Guide

Document code
M211920EN
Revision
C
Language
English (United States)
Product
GMP251
GMP252
Document type
User guide
Figure 1. Probe and Relay Box Wiring
  1. Open the relay box screws and remove the cover.
  2. Lead the GMP251/252 probe connection cable with open wires (223263SP/244669SP/216546SP) through the left cable gland and connect the open wires to the screw terminals as shown in Figure 1.
  3. Lead the relay box input/output cable through the right cable gland and connect the wiring as shown in Figure 1.
    CAUTION Do not switch on the power supply before you have completed the wiring and reattached the relay box cover.
  4. After the wiring is complete, reattach the relay box cover and switch on the 20 ... 30 VDC power supply.