4532 Average Temperature Sensor & Converter

The 4532 Average Temperature Sensor and Converter (ATC) is an intrinsically safe, multi element (Pt100) resistance device designed to measure the average product temperature in bulk liquid storage tanks.

Technical Specifications | Order Codes | Accessories | Documents & Downloads | Spare Parts |

4532 ATS

2‐6 platinum sensing elements provide ±0.15 °C (±0.27 °F) accuracy


Built to withstand oil and gas applications with FM/ATEX approvals


Connects to tank gauge systems using HART multi drop (2‐wire)


Install and forget - stainless steel probe is sealed and rated to IP68

Meets API and is ATEX approved

Meets API Standards

The 4532 ATC is installed vertically onto spheres, bullets, cone, dome or floating roof tanks. Measurements are based on API (American Petroleum Institute) Manual of Petroleum Measurement Standard, Chapter 7.

Liquid and Vapor Profiles

The 4532 ATC contains up to 6 temperature elements, spaced at 2 or 3 meter intervals along the length of the probe. A continuous measurement profile of average liquid and/or average vapor temperature throughout the tank is available by reading the position and temperature of each element.

Easy to read

Tank Gauging System

Power and local HART communications are provided over a 2-wire, intrinsically safe (i.s.) connection from compatible instruments, such as the Varec 6005 Servo Tank Gauge (STG), 4560 Servo Gauge Monitor (SGM) or the 4590 Tank Side Monitor (TSM).

Float and Tape Tank Gauge Transmitter

Technical Specifications

Probe Elements 2-6 Platinum (Pt. 100), Class A element, multi spot configuration with a fixed interval of 6 to 9 feet, (2 or 3 meters) per IEC PUB 751 1995
Accuracy ‐30 °F to +160 °F (‐34 °C to +71 °C)
Measuring Range ‐20 to + 100 °C, (‐4 to +212 °F)
Power & Communications DC16‐30V input (DC24V ±10% is supplied by the HOST i.s. HART communication line for standard applications.)
The 4532 ATC consumes an average fixed current of 6.0 mA.
Approvals Factory Mutual (FM) ‐ Intrinsically Safe ‐ Class I, Division 1, Groups A/B/C/D
Contact Varec for ATEX and IECEx approved devices.
Housing: rated IP65 (open housing: IP20)
Probe: rated IP68

For complete technical specifications, download the technical document or product manual.

Order Codes

The following options are available for this product.

  • FM - Intrinsically Safe - Class I, Division 1, Groups C & D
  • Contact Varec for ATEX and IECEx approved devices
  • Thread NPT 1/2
  • Thread M20
  • 2" 150lbs RF, 304 flange ANSI B16.5
  • DN50 PN0 B1, 304 flange EN1092-1 (DIN2527 C)
  •; 2x Pt100; 2 m (min 2,500 mm, max 4,500 mm)
  •; 3x Pt100; 2 m (min 4,500 mm, max 6,500 mm)
  •; 4x Pt100; 2 m (min 6,500 mm, max 8,500 mm)
  •; 5x Pt100; 2 m (min 8,500 mm, max 10,500 mm)
  •; 6x Pt100; 2 m (min10,500 mm, max 12,500 mm)
  •; 2x Pt100; 3 m (min 3,500 mm, max 6,500 mm)
  •; 3x Pt100; 3 m (min 6,500 mm, max 9,500 mm)
  •; 4x Pt100; 3 m (min 9,500 mm, max 12,500 mm)
  •; 5x Pt100; 3 m (min 12,500 mm, max 15,500 mm)
  •; 6x Pt100; 3 m (min 15,500 mm, max 18,500 mm)
  • Anchor weight 7.09" tall, diameter 4.72" (180mm tall, diameter 120mm)
  • Anchor weight - Low Profile to be laid on bottom of tank Length 39.37" (1000mm); Diameter 1.61" (41mm)
  • Tensioning wire, wire hook, NPT 1" top anchor
  • Tensioning wire, wire hook, R1 top anchor

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