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Home | Products | pH & Conductivity | Conductivity | Conductivity Transmitters | EcoTRANS Lf03

EcoTRANS Lf03 – Transmitter / Switching Device for Conductivity (202732)

Transmitter / Switching Device for Conductivity or Resistance and Temperature (202732)

Jumo ecoTRANS Lf 03 Conductivity Transmitter

EcoTRANS Lf03 Features

  • For connecting conductance sensors in two-electrode technology
  • Display units µS/cm, mS/cm, kOhm x cm, MOhm x cm, µohm/cm, mhom/cm
  • Two actual value outputs for conductivity and process temperature
  • Switching output
  • USP switching function according to USP<645>
  • Selectable temperature compensation natural water EN 27 888, ASTM D 1125-95, linear
  • Three-way disconnection (input, output, and voltage supply are galvanically isolated from each other)
  • DIN-rail mounting
  • Delivery includes calibration certificate
Brand: JUMO
Usually in stock
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  • Product Details
  • Technical Specs
  • Documents

Description

The conductivity transmitter ecoTRANS Lf 03 measures the conductivity or the resistance of liquids in conjunction with conductivity measuring cells.

The device is operated and configured using the keypad and the integrated LCD display. A convenient alternative here is the setup connection (notebook/PC) using the setup program. The setup program also allows printing of the configuration data, which makes plant documentation easier. The device comes with a calibration certificate in which the device and adjustment data is documented.

Typical Applications

  • Plants for fresh water monitoring and water treatment
  • Reverse osmosis plants
  • Ion exchanger plants
  • Ultra-pure water and pharmaceutical applications
  • Condensate monitoring
  • Rinsing baths
  • Cooling water control

Technical data

Inputs

Analog input 1 (conductivity)

Electrolytic conductivity cells, with cell constants: 0.01; 0.1; 1.0; 3.0; 10.0 1/cm (2-electrode principle). The cell constant can be adjusted within the range 20 — 500%, so that unusual cell constants (e.g. 0.2; 0.5; etc.) can also be set.

Lead compensation, analog input 1
The effect of long cables for the measuring ranges above 20 mS/cm can be
compensated by entering the lead resistance, within the range 0.00 to 99.99Ω.

Zero-point calibration, analog input 1

Zero-point errors caused by the system can be compensated.

Conductivity ranges

0 — 1 µS to 0 — 200 mS, depending on the cell constant.
A table with all the measurement ranges is provided at the end of the Technical data.

Analog input 2 (temperature)

• Resistance thermometer
Pt100 or Pt1000-10 to +250°C
• NTC 2kΩ; 25°C, B=3500 -10 to +150°C
• NTC UUA 32J49; 2.25kΩ -10 to +150°C
• KTY 11-6; 2000 Ω -10 to +150°C
• Customer-specific characteristic,
maximum resistance 4500Ω

All temperature probes can be connected in 2-, 3- or 4-wire circuit. The setup program can be used to enter a customer-specific characteristic for the temperature probe. This means that any temperature probe (NTC or similar) that may already be present can still be used. The measurement display is in °C / °F, switchable.

Lead compensation, analog input 2

The offset can be used to correct the measured value in the range -20 to +20°C. Reference temperature (for temperature compensation) settable from 10 to 40°C (factory setting: 25°C, according to the international standard)

Temperature range

-10 to +250°C or +14 to +482°F

Deviation from characteristic, temperature

with Pt100 / Pt1000: ≤ 0.6 %
NTC 2 kΩ: ≤ 1.5 %
NTC UUA: ≤ 2.0 %
KTY11-6: ≤ 0.8 %
with customer-specific characteristic: ≤ 5 Ω.

Outputs

Two analog outputs

freely configurable:
0(2) — 10 V Rload ≥ 2 kΩ or
10 — (2)0 V Rload ≥ 2 kΩ or
0(4) — 20 mA Rload ≤ 400 Ω or
20 — (4)0 mA Rload ≤ 400 Ω
electrically isolated from the inputs:
ΔU ≤ 30V AC or
ΔU ≤ 50V DC
minimum scaling span: 10% of range span.

Deviation of the output signal

±0,015 mA or ±5 mV ±50 ppm/K

Relay output

changeover contact contact rating: 8 A, 250 V AC or 8 A, 24 V DC with resistive load contact life: > 100, 000 operations at rated load

Open collector

contact rating: 100 mA, 35 V DC with resistive load, voltage drop in the switched state ≤ 1.2 V, not short-circuit-proof

General characteristics

A/D converter

resolution 14 bit

Sampling time

500 msec = 2 measurements per second

Ambient temperature error

≤ 0.5 % per 10 °C

Measuring circuit monitoring

input 1 (conductivity): out-of-range
input 2 (temperature): out-of-range, probe short-circuit, probe break.
In fault condition, the outputs adopt a defined (configurable) state.

Data backup

EEPROM

Supply voltage

20 to 30 V DC, ripple < 5 % power consumption ≤ 3 W, with reverse-polarity protection. For operation with SELV or PELV circuits.

Electrical connection

screw terminals up to 2.5 mm2

Permissible ambient temperature

operating temperature range 0 to +50 °C
functional temperature range -10 to +60 °C

Permissible storage temperature

-20 to +75 °C

Climatic conditions

rel. humidity ≤ 93 %, no condensation

Protection (to EN 60 529)

IP20

Electrical safety

to EN 61010 clearance and creepage distances for
– overvoltage category II
– pollution degree 2

Electromagnetic compatibility

to EN 61326
interference immunity: to industrial requirements
interference emission: Class B

Housing

housing for DIN rail mounting: PC (polycarbonate)

Mounting

on a 35 x 7.5 mm DIN rail to DIN EN 60715

Operating position

unrestricted

Weight

approx. 150 g

  • Jumo ecoTRANS Lf 03 Conductivity Transmitter - Brochure 5.17 MB
  • Jumo ecoTRANS Lf 03 Conductivity Transmitter - Data Sheet 234.37 KB
  • Jumo ecoTRANS Lf 03 Conductivity Transmitter - Operation Manual 988.52 KB

Product Range

Product Range:
CodeSpecificationsPriceQuantity
202732

ecoTRANS Lf 03, 2 x Analogue Outputs and 1 Relay Output
(202732-888-888-101-000)

$1,450.00
_00456352

PC Interface with Converter USB/TTL

$507.00
All prices are in NZ$, and GST exclusive and are subject to change without notice.

Intech Instruments Ltd are the New Zealand distributor for JUMO products. Please contact the JUMO distributor in your country if you require sales or service support for JUMO products.

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