Level Indicator - Transmitter Type 850 Models : ● 850 Stainless steel indicator base / aluminium housing ● 850 Stainless steel indicator base / stainless steel housing ● 850 Indicator + alarms ● 850 Electronic transmitter ● 850 Electronic transmitter + alarms Features : ● Compact ● Accurate ● Robust design ● Economical ● 4-20mA Transmitter with a two wires connection ● Visual indication without any electrical power ● Top or chamber mounting DESCRIPTION The Type 850 Level Indicator/Transmitter is designed to display and/or relay readings of the level of a fluid in a tank. It consists of: - An indicator unit (in an aluminium enclosure or, as an option, in a stainless steel enclosure) incorporating 1 or 2 alarms and/or 1 electronic transmitter; - A float or plunger (made of stainless steel or other material, depending on the type of fluid); - A connection fitting for attachment to the tank (flange or threaded connector) equipped with a sensing head containing the fitting for connection to the indicator unit. MEASUREMENT PRINCIPLE The instrument is mounted in a vertical position. The fluid level is indicated by the float. The movement of the float is spring-assisted in order to provide a wide range of measurement, as a function of the scale to be measured and the density of the fluid. The level reading is transmitted by magnetic coupling to the dial pointer on the graduated dial of the indicator unit and to the alarm or relaying modules located inside the unit downwards. UTILIZATION The level indicator type 850 is specially designed to measure levels of any liquid fluid. It is suitable for opaque, corrosive or dangerous fluids, used in most of industrial processes. Its robust stainless steel design allow very hard utilization conditions. This level indicator has a really compact design which include indicator + alarm assemblies.

TECHNICAL SPECIFICATIONS ● Operating temperature: Standard: −60 °C to +150 °C (Without switch / transmitter) -Heat shield required, depending on the equipment options. -High temperature versions available on request (150-250°C). ● Turbulance protection tube (option) ● Mounting chamber (option) ● Materials: Standard - wetted parts (body and float assembly) mounting Z2 CND Stainless steel (316L) length : 100mm - indicator housing (IP65) - aluminium version : mounting plate in aluminium alloy, front (other on request) cover in cast aluminium alloy, epoxy/polyester paint - stainless steel version...

INSTRUMENT DESIGN Each instrument comprises three main subassemblies: the connecting head, the indicator unit and the float. These elements are assembled and calibrated at the factory. For space and transportation reasons, the float may be supplied separately; it is simply secured in place by means of hooks. Each instrument is allocated a unique serial number (stamped on the bracket welded to the Guide header tube and printed on the dial of the indicator unit and on the float). It is essential to quote Balance this number in the event of any request for information from the manufacturer’s After-Sales...

ORDERING INFORMATION Instrument Type :850 Code Case/housing Type STD Alu STD Alu with high temperatures option STD Stainless steel STD Stainless steel with high temperatures option Code Nominal Pressure (N.P.) XXX 16 - 40 - 20 - 50 - 100 Code Nominal Diameter C1 Nominal Diameter 50 (2") C2 Nominal Diameter 65 (2"½) C3 Nominal Diameter 80 (3") C4 Nominal Diameter 100 (4") C1 G2" Cap NFE 03005 Code K1 K2 K3 K4 K10 Protection tube For ND 50 For ND 65 For ND 80 For ND 100 For 2" threaded plug Code Measuring Scale M --- See table « Level range » Code Transmiter Std 4-20 mA Electronic Transmiter T1...