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RLT-2000 1
RLT-2000
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WIKA · Level measurement · Family RLT

Reed-chain level sensor

For industrial applications, plastic version
Range
0.15…1.5 m
Output
Resistance 3-wire potentiomet…
Accuracy
3 mm to 24 mm
Protection
IP65
RoHSEU Declaration of ConformityEMC Directive EN 61326China RoHS
Price
On request
Depends on configuration
Request a quote
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Description

The model RLT-2000 level sensor has been developed for measuring the level of liquids.

Special features

  • Media compatibility: aqueous media and corrosive liquids
  • Wetted parts: PP or PVDF
  • Output signal: Resistance in a 3-wire potentiometer circuit, current output 4 ... 20 mA
  • Accuracy, resolution: 24 mm [0.9 in], 12 mm [0.5 in], 10 mm [0.4 in], 6 mm [0.2 in] or 3 mm [0.1 in]
Identification
ModelRLT-2000
Product familyRLT
SubcategoryFloat level sensor
Measuring range
Level ranges0.15…1.5 m
Process conditions
Process connection
G1½ from outsideG2 from outsideG⅜ from insideG½ from inside
Process temperature−30…+120 °C
Max process pressure3 bar
Measurement technologyfloat
Electrical characteristics
Output signalResistance 3-wire potentiometer · 4...20 mA
Power supplyDC 12...32 V
Electrical connectionAngular connector DIN 175301-803 A, Cable outlet, Connection housing
Materials
Wetted parts materialPP, PVDF
Operating environment
Ambient temperature−30…+80 °C
IP ratingIP65
Certifications and approvals
Certifications
RoHSEU Declaration of ConformityEMC Directive EN 61326China RoHS
Tables from datasheet
Level sensor, model RLT-2000
Measuring principleReed-chain technology with optional analogue amplifier
Measuring rangeMThe measuring range is determined from the selected guide tube length L and the position of the 100 %mark. For dimensions see drawing
Guide tube length L150 ... 1,500 mm[6 ... 59 in]
Output signal■ Variable resistance The overall resistance of the reed chain is approx. 1 ... 10 kΩ, depending on the measuring range Max. voltage < DC 40V ■ Current output, 4 ... 20 mA, 2-wire Power supply:DC 12 ...32V Load in Ω: ≤ (power supply - 12 V) / 0.02 A
Accuracy, resolution■ 24 mm[0.9 in] 1) ■ 12 mm[0.5 in] 1) ■ 10 mm[0.4 in] 2) ■ 6 mm[0.2 in] 1) ■ 3 mm[0.1 in] 1)
Mounting positionVertical ±30°
Process connection■ G1½, installation from outside 3) ■ G2, installation from outside ■ G⅜, installation from inside 4) ■ G½, installation from inside 4)
Material ■ Wetted ■ Non-wettedProcess connection, guide tube: PP, PVDF (option) Case: PP, PVDF (option)Float:See table page 3 Electrical connection:See table below
Permissible temperatures ■ Medium ■ Ambient ■ StoragePP version -10 …+80 °C [14 …176 °F] -10 …+80 °C [14 …176 °F] -10 …+80 °C [14 …176 °F]PVDF version (option) -10 …+80 °C [14 …176 °F], option: -30 …+120 °C [-22 …+248 °F] 5) -30 …+80 °C [-22 …+176 °F] -30 …+80 °C [-22 …+176 °F]
Electrical connections 6)Ingress protection 7)MaterialCable length
Angular connector DIN 175301-803 AIP65PA-
Cable outletIP67PVC■ 2 m[6.5 ft] ■ 5 m[16.4
Cable outletIP67Siliconeft] other lengths on request
Connection housing Dimensions: 80 x 82x55mm [3.1 x 3.2 x 2.2 in] For cable diameter: 5 ...10mm [0.2 ... 0.4 in]IP66Polycarbonate, glands from polyamide, brass, stainless steel-
FloatFormOuter diameter∅DHeight HOperating pressureMedium temperatureDensityMaterial
Cylinder 8)44 mm[1.7 in] 44 mm[1.7 in]≤ 3 bar [≤ 43.5 psi]≤ 80 °C [≤ 176 °F]≥ 500 kg/m³ [31.2 lbs/ft³]PP
HCylinder 9)55 mm[2.2 in]55 mm[2.2 in]≤ 3 bar [≤ 43.5 psi]≤ 80 °C [≤ 176 °F]≥ 500 kg/m³ [31.2 lbs/ft³]PP
∅DCylinder 9)55 mm[2.2 in]65 mm[2.6 in]≤ 3 bar [≤ 43.5 psi]≤ 120 °C [≤ 248 °F]≥ 850 kg/m³ [53.1 lbs/ft³]PVDF
Angular connector DIN 175301-803 A
Variable resistanceCurrent output, 4 ... 20 mA, 2-wire
Overall resistancePin 2 / 3U+Pin 1
100 ...0%Pin 1 / 3U-Pin 2
0 ...100%Pin 1 / 2
View all (12)
Polycarbonate case
Variable resistanceCurrent output, 4 ... 20 mA, 2-wire
Overall resistanceTerminalW1/W3U+Terminal U+
100 ...0%TerminalW1/W2U-Terminal U-
0 ...100%TerminalW2/W3
Electrical safety
Reverse polarity protectionU+ vs. U-
Overvoltage protectionDC 40V
Process connectionOuter diameter float∅D
∅44 mm[1.7 in]∅55 mm[2.2 in]∅55 mmPVDF [2.2 in]
G 1 ½(from outside)45 mm[1.8 in]--
G 2 (from outside)-55 mm[2.2 in]65 mm[2.6 in]
G ⅜B(from inside)50 mm[2.0 in]55 mm[2.2 in]60 mm[2.4 in]
G ½B(from inside)50 mm[2.0 in]55 mm[2.2 in]60 mm[2.4 in]
Dead bandOuter diameter float∅D
∅44 mm[1.7 in]∅55 mm[2.2 in]∅55 mmPVDF [2.2 in]
T40 mm[1.6 in]45 mm[1.8 in]55 mm[2.2 in]
GL 1Spanner width
G1½16 mm[0.63 in]30 mm[1.2 in]
G220 mm[0.79 in]36 mm[1.4 in]
LogoDescriptionCountry
EU declaration of conformity ■ EMCdirective EN 61326 emission (group 1, class B) and interference immunity (industrial application) ■ RoHS directiveEuropean Union
LogoDescription
-China RoHS directive
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