Table 2-4 Remote Mounting Procedure For Meredian Ii Electrodes - Honeywell DirectLine DL421 User Manual

When the DL421 is specified with Table II = 3, the Remote Connector Assembly (part number
51500768-001) is supplied loose for connection of the Meredian II pH electrode cable to the
DL421 module. Table 2-4 gives the mounting procedure.

Table 2-4 Remote Mounting Procedure for Meredian II Electrodes

Step
1 Turning counterclockwise, remove strain relief/cover combination from the remote
connector assembly.
2 Remove the protective plastic bag from the end of the electrode cable. Be careful to
keep bare fingers away from coax cable termination.
3 Loosen and remove compression cap from strain relief fitting. Carefully push cable end
through cap and strain relief fitting so that these parts are strung back along cable
jacket.
4 Connect cable leads as follows:
Slide cover along cable and tighten by hand onto the remote connector assembly.
5
6 Slide cap along cable and tighten onto cable jacket with small wrench until cable cannot
slide within strain relief rubber bushing.
7 Remove yellow protective sleeve from opposite end of connector assembly.
8 Apply a thin film of silicon grease to the ID of electronics module's remote mounting
cavity.
9 Plug remote connector assembly into DL421 module aligning polarity tab of module
housing and mating groove on connector.
10 Secure Electronics Module with Wall, Pipe, or DIN Rail Mounting
Mount bracket with clips facing forward, smaller clip on top and larger clip on bottom.
Push electronics module onto the remote mounting bracket until it snaps into position.
2/04
Procedure (Refer to Figure 2-4 and Figure 2-5)
Terminal 1 = Orange Reference Electrode Lead
Terminal 2 = White Temperature Compensation Lead
Terminal 3 = White Temperature Compensation Lead
Terminal 4 = Pigtail Shield Lead
Terminal 5 = NC (No Connection)
Terminal 6 = Coax Measuring Electrode Lead
Earth Ground = Yellow
Wall: Use one of three through-holes to secure to wall.
Pipe: Feed hose clamp through two slots and secure to pipe.
DIN rail: Attach the appropriate DIN rail clip to the mounting bracket:
"U" DIN rail—use metal clip and shorter screw (8 mm)
"G" DIN rail—use gray clip and longer screw (10 mm)
Clip can be rotated for horizontal or vertical DIN rails.
DirectLine® DL421 Sensor Module User Manual
Installation
9