2852-LT Remote Mounted Level Transmitter

Overview

The 2852-LT Remote Mounted Level Transmitter provides reliable level monitoring of liquids and solids for measurement and control. The unit continuously monitors the liquid or solids level in a tank, stand-pipe or containment. Outputs include analog, digital, and relay control for interface to alarms, valves, pumps and other process monitoring equipment.

The 2852-LT sensing probe monitors the capacitance field around the probe. As the product rises in the tank or vessel the probe capacitance increases. This change is used to provide a 4-20 mA proportional output and two setpoint alarm relays. on can be set using any two points along the probe length.

Features & Benefits

No moving parts
Remote electronics via standard twisted pair
Explosion proof probe is standard
Probe is available with Intrinsically Safe option for alternative HazLoc protection
High corrosion resistant Teflon and stainless steel wetted parts
Capacitance technology responds to all liquid and solids types
HF capacitance technology does not require routine cleaning
Easy calibration and control set-up
Capacitance technology does not foul or require routine cleaning
Remote monitor mounts away from the process for operator safety and ease of control wiring

Technical Specifications

Control Unit

Operating Temp. -20˚C to +55˚C
Resolution .007% (.07 pF at 1,000 pF)
Accuracy .04% of full scale pF
Power Input 12 vdc or 24 vdc or 100-240 vac +/- 10%
Alarm Relay 2 x 10 amp@240 vac, SPDT dry, discrete relays with differential control (2852-LT only)
Analog Output 4-20mA proportional output, non-isolated
Communication Modbus RS-485
Certified UL 61010-1, 2nd Edition
CAN/CSA-22.2 61010-1-4
IEC/EN 61010-1, 2nd Edition
IEC 61326-1
CE Declared
Enclosure Type 4/IP 66 painted steel
or Type 4X/IP 66 polycarbonate or SS
Optional Light, buzzer, beacon (2852-LT only)
2851-LT as above: no relays, isolated 4-20mA

Probe

Probe -60˚C to +260˚C
PMC -60˚C to +55˚C
Approval CSA Div 1, Class 1, Groups C,D
ABSA-CRN #0F07450.2
Intrinsic Safety CSA Intrinsically Safe when ordered with Approved Barrier in Control Unit
Div 1, Class I, Groups A,B,C,D;
Class II, Groups E,F,G; Class III, Encl.Type 4
Wetted Parts 316SS and Teflon

Sensor materials are eligible for NACE MR-0175 Compliance