GF Signet Optional Relay Module adds two programmable dry-contact relays. The open collector output in the 9900 base unit uses the Relay 1 setting. The optional Relay Module is assigned to relays 2 and 3 in the menus.

The Direct Conductivity/Resistivity Module interfaces Signet 2819-2823 and 2839-2842 Conductivity electrodes directly to the 9900. The module also provides filtering and conditioning. (Conductivity/Resisitivity and Salinity measurements may also be performed via the 2850 Sensor Electronics connected through the 9900 Digital (S3L) intputs.)

Dry-contact relays are electromechanical switches with a moving contact armature. They are suitable for many general purpose applications, AC or DC, including loads up to 250 V. Install RC Filter kits (3-8050.396) on relays used to switch motor or inductive loads. This module adds two programmable dry-contact relays to the standard Open Collector output on the base unit.

Features:

Up to 8 relays

12 to 24 VDC or 100 to 240 VAC ±10%, regulated power

Accepts 3rd party 4 to 20 mA output devices when used with 8058 signal converter

Up to 4 analog outputs

Measures Flow, pH, ORP, Conductivity, Pressure, Level and Temperature

1/4 DIN enclosure

Hysteresis and time delay available for each relay

User programmable

Digital Communication allows for extended cable lengths, and easy wiring

Multi-language display

Adds two programmable dry-contact relays

Available in panel mount only

Applications:

Chemical Processing

Metal and Plastic Finishing

Demineralizers

Fume Scrubbers

Wastewater Treatment

Aquatic Animal Life Support Systems

Pure Water Production

Cooling Tower & Boiler Protection

Standards:

CE

UL

RoHS Compliant