Rochester Sensors S285/109 1/4 in. Male NPTF Brass Coolant Level Switch

Description

Rochester Sensors’ S285 capacitance type coolant level switch is an active device designed to give an alarm signal if liquid falls below, or rises above, a preset level. It can be specified with a delay to eliminate false alarms due to turbulence. Containing a factory programmable microprocessor, the switch offers sink to ground or source voltage outputs. The switch is designed to operate in both earthed metal and isolated plastic tanks. For high accuracy the S285 is ideally mounted horizontally at the point where an alarm or control signal is required.
Its small footprint with limited intrusion into the tank means a reduced risk of damage and a wide range of customer specifiable options make it suitable for most applications.
Note: Used with water based liquids, such as coolant or washer fluid, compatible with brass, PTFE, EPDM and FVMQ. Includes HA/43 Harness (FZHA43), C/K1 4-Way Metri-Pack 150 Mating Connector on 100 mm. Flying Leads.

Features

Ideally mounted horizontally
Inbuilt time delay
Factory programmable microprocessor
Small footprint
Includes Fozmula HA/43 harness
Suitable for most applications

Specifications

Model: S285/109
Type: Coolant Level Switch
Technology: Capacitance
Liquid: Water Based Coolant
Output Type: Sink & Source
Connector: Metri-Pac 150 – 4 Pins
Thread: 1/4 in. Male NPTF

Performance:

Output: Sink in Liquid, Source in Air
Alarm Delay: 0 s (Factory Set)
Power Up: in Liquid
Switch Sense: Level Falling

Materials:

Body: Brass
Probe: PTFE
Terminals: Brass, Tin Plated
Seals: EDPM, FVMQ
Connector: 30% Glass Filled Nylon
Thread Seal: Vibra-Seal 516

Ratings:

Sealing: IP67
Maximum Pressure: 72.52 PSI (5 Bar)
Drop: 1M to concrete
Vibration: 15.3 Grams
Temperature: -40 to 257°F (-40 to +125°C)
EMC: ISO13766:2006

Electricals:

Supply Voltage: 9-36 V DC
Supply Current: 7 mA + source output

HA-43 Harness Information:

Connector: M/P 150-4P, Metri-Pack 150 Sealed Female
Harness: 100 mm 18 AWG GXL x4
Output
#2: Pin A, Green Wire
Ground: Pin B, Black Wire
+ve Supply Location: Pin C, Red Wire
Output
#1: Pin D, White Wire

Downloads
Troubleshooting Guide (PDF Download)
Datasheet (PDF Download)