
9
S
TA
-R
ITE
I
NSTALLATION
&
O
PERATION
G
UIDE
2.4 FLOW OR PRESSURE SWITCH
It is mandatory to use a flow or pressure switch to prevent the SR6000S from feeding
chemicals if the main pump is OFF. The switch must be open when there is no flow and
closed when there is flow. Note: The AK1200 flow cell has a built in flow switch that
protects against feeding chemicals in a NO flow condition by quickly detecting no flow in
the system.
WARNING: WHEN USING ANYTHING OTHER THAN STA-RITE SWITCH DEVICES,
THE FLOW SWITCH MUST NOT SUPPLY ANY VOLTAGE TO ANY SWITCH INPUTS
OR DAMAGE MAY OCCUR, WHICH IS NOT COVERED BY THE WARRANTY.
2.5 ELECTRICAL SPECIFICATIONS
The following electrical specifications in the table below must not be exceeded.
ITEM DESCRIPTION
LIMIT
Input Voltage
Maximum Input AC Voltage
250 VAC
Input Current
Maximum Current
5 Amps (AC)
Temperature
Minimum/Maximum Operating Temp
30-110 ºF
Standby
Current
Current with all relays OFF, LED ON
Current with all relays OFF, LED OFF
90 mA (AC) Typical
65 mA (AC) Typical
Sensor Range
Relays –pH
ORP
4.2 – 9.8 pH units
0 – 999 MV