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Datasheet generated 2026-10-07
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Danfoss AKS 4100 liquid level sensor, Cable version, 5 m (197 in) probe, G 1 in, HMI display EN/DE/FR/ES, guided-wave TDR, 4–20 mA (084H4501)

Danfoss · Sensors & Instrumentation · Level Sensors · Denmark · danfoss.com
Part Number
084H4501  ·  HS 9026.10
Danfoss AKS 4100 liquid level sensor, Cable version, 5 m (197 in) probe, G 1 in, HMI display EN/DE/FR/ES, guided-wave TDR, 4–20 mA (084H4501)

Danfoss AKS 4100 guided-wave (Time Domain Reflectometry) liquid level sensor, code 084H4501, cable version. Continuous refrigerant liquid-level measurement in receivers, standpipes, intermediate coolers, oil pots and pressure vessels. 5 m (197 in) stainless-steel cable probe with counterweight, field-cut to any length from 800 mm (31.5 in) to 5000 mm (197 in). Process connection G 1 in pipe thread. With integrated HMI display unit, language set English (default) / German / French / Spanish. 2-wire loop-powered 4–20 mA output proportional to liquid level; unaffected by foam, vapour, boiling surface, density change or dielectric-constant change. Max. working pressure -1 to 100 bar (-14.5 to 1450 psig); medium temperature -60 °C to +100 °C; ambient -40 °C to +80 °C; enclosure IP66/67 (NEMA 4X housing / 6P probe). The cable version is for R717 (ammonia), HCFC and HFC with liquid dielectric constant εr > 5.6 and must be installed in a standpipe. Wetted parts stainless steel 1.4404/316L and 1.4401/316; EPDM gaskets. EAN 5702428414906. OEM P/N 084H4501.

Technical Specifications

TypeDanfoss AKS 4100
Code number084H4501
Product groupLiquid level sensors
Measuring principle2-wire loop-powered level transmitter; guided-wave radar / Time Domain Reflectometry (TDR)
DesignCable version
Probe5 m (197 in) stainless-steel cable + counterweight; adaptable 800 mm (31.5 in) to 5000 mm (197 in); install in standpipe
Process connectionG 1 in pipe thread (aluminium gasket included)
Output signal4–20 mA, 2-wire loop-powered (3.8–20.5 mA acc. to NAMUR NE 43)
Supply voltage14–30 V DC (16–30 V DC at ambient below -20 °C)
Error signalNAMUR NE 43 — High 22 mA / Low 3.6 mA (default error output 3.6 mA)
Temperature drifttyp. 75 ppm/K
Terminals0.5–1.5 mm² (~20–15 AWG), spring-loaded
Max. working pressure-1 to 100 bar (-14.5 to 1450 psig)
Medium (refrigerant) temperature range-60 °C to +100 °C (-76 °F to +212 °F)
Ambient temperature range-40 °C to +80 °C (-40 °F to +176 °F); with HMI -20 °C to +60 °C
Storage temperature-40 °C to +85 °C
Enclosure / protectionIP66/67, equivalent to NEMA type 4X (housing) / type 6P (probe)
Vibration resistanceEN 60721-3-4 (1–9 Hz: 3 mm; 10–200 Hz: 1 g; 10 g shock half-wave sinusoidal, 11 ms)
Housing materialaluminium
Wetted / probe materialstainless steel 1.4404 (316L) and 1.4401 (316)
Gasket materialEPDM (-50 °C to +150 °C)
Cable glandPG13.5 / M20×1.5 (cable Ø 6–8 mm)
Display / HMIintegrated LCD 128×64 px, 8-step greyscale, 4-button keypad; languages EN (default), DE, FR, ES
RefrigerantsR717 (ammonia), HCFC, HFC (εr,liquid > 5.6)
Applicationcontinuous liquid-level measurement in refrigeration receivers, standpipes, vessels, intermediate coolers and oil pots
Net weight2.3 kg (gross 3.68 kg)
ApprovalsCE; EAC; GOST R Pattern Approval of Measuring Instruments (Russian Federation); PED 2014/68/EU (Art. 4, par. 3); CRN (TSSA); China RoHS
EAN5702428414906

Properties

MaterialStainless steel 1.4404/316L, 1.4401/316; aluminium housing
Pressure rating-1 to 100 bar (-14.5 to 1450 psig) MWP
Temperature range-60 °C to +100 °C medium, -40 °C to +80 °C ambient
IP ratingIP66/67
Standard size5 m (197 in) cable
Thread standardG 1 in pipe thread
MOQ1

Compatibility

Loop-powered transmitter — pair with a compatible 14–30 V DC controller/indicator (e.g. Danfoss EKC 347 liquid-level controller) ordered separately. Cable version must be installed in a standpipe; confirm required length, process connection and refrigerant before ordering. Each AKS 4100/4100U must be programmed via an HMI display unit at commissioning.

Standards

Approvals

Attached Documents