8
Clicking Sound is Normal
Fluid flowing through the injector will automatically cause the injector
to “click” and inject a set amount of solution into the fluid line. The
higher the flow rate the more frequent the “clicking”. The injector
is designed to inject solution proportionally (at the same set ratio)
regardless of fluid flow.
Service Fluid Flow
Fluid flow and pressure must be within the established specifications
(see Specification on page 6) for your model.
Change Feed (Injection) Rate
The feed rate on the injector is adjustable EVEN WHILE OPERATING
AND UNDER PRESSURE. To change feed rate see Fig 1 (a, b or
c) and Fig 2 (a, b or c) based on your injection rate. Do not remove
#79 when injector is under pressure.
MiniDos 0.4%, 1%, 2.5% and 5%, see Fig 1a and 2a
Rotate Ratio Adjuster (#61) (Fig 1a) up or down using the Setting
Indicator Mark (Fig 2a) to select the desired feed rate.
MiniDos 10%, see Fig 1b and 2b
1. Remove Interlock Pin (#65) (Fig 1b.).
2. Rotate Ratio Adjuster (#61) up or down to the desired setting.
Use the top of the Ratio Adjuster Sleeve to line up with the desired
feed rate setting (Fig 2b).
3. Re-insert Upper Interlock Pin (#65). Clip must be parallel with
settings to be able to re-insert.
MiniDos 20%, see Fig 1c and 2c
1. Remove Ratio Locking Pin (#79) (Fig 1c.).
2. Rotate Outer Cylinder (#7) up or down to the desired setting.
Use the top of the Outer Cylinder to line up with the desired feed
rate setting (Fig 2c).
Bypass Operation
Injecting solution into the fluid line can be TEMPORARILY
stopped with the On/Off feature (Fig. 3). Moving the On/Off
Lever to the OFF position allows service fluid to pass through
the injector without injecting chemical. No "clicking" will be
heard.
With the On/Off lever set to the ON position the injector will
operate as normal and “clicking” will be heard when fluid is
flowing. It is recommended to use the three-valve bypass (see
Fig. 5), for continued bypassing or servicing of the injector.
Fig. 3
Fig. 4
Typical wall
mounting
Run Position
(clicking)
Off Position
(not clicking)
004014(2x)
195008
Fig. 1b
Fig. 1a
Fig. 2a
A
#61
B
C
A
B
C
A
B
C
A
B
C
A
MiniDos 0.4%, 1%, 2.5% and 5%
MiniDos 10%
#79
MiniDos 20%
Fig. 1c
Fig. 2b
Fig. 2c
#61
#65
#7
NOTE: Do not adjust feed rate below lowest setting line.
Measure outlet fluid to assure desired feed rate is being delivered.
#79
#79
Operations
