Martens 转换器 UNICON-LF 电导率转换器 Martens of the GHM GROUP

Martens 转换器 UNICON-LF 电导率转换器 Martens of the GHM GROUP

UNICON-LF 电导率转换器UNICON-LF设计用于测量电导率，作为液体纯度或浓度的程度。 与4电极电导池相关，可以实现高精度和不敏感的污染。 另一个优点是仅具有一个电池的广泛应用。

仅用于在超纯水中测量时，必须使用特殊的2电极电导池。

The Conductivity Converter UNICON-LF has been designed for the measurement of conductivity, as a degree of the purity or concentration of a liquid. In connection with 4-electrode-conductivity cells a high accuracy and insensitivity of contamination can be achieved. A further advantage is a broad range of application with only one cell.

Only for measurement in ultra-pure water a special 2-electrode conductivity cell must be used.

Martens 转换器 UNICON-LF 电导率转换器 Martens of the GHM GROUP

Technical data

Power supply

Loop voltage : UB 14..30 V DC, 2-wire connection

Operating temperature : 0..50 °C

CE- conformity : EN 61326-1:2013

Conductivity output

Current : 4..20 mA

Unit : programmable μS/cm; mS/cm;kΩ/cm; MΩ/cm

Decimals : 0..3 digit (unit depending)

Indicating range : 500..9999 Digit (unit and decimals depending)

min./max. MR : 0..5.00 μS/cm bis 0..500.0 mS/cm;0..0.500 μS/cm / 0..50.0 μS/cm with ultra-pure cell

Temperature comp. : non linear for ultra pure water and natural water or linear programmable from 0.000..8.000 %/°C

-Cell constant : 0.080..9.999

-Accuracy : ±0.5 % of the measuring value, ±2 Digit

Temperature output

Current : 4..20 mA

Burden : RA ≤ (UB-14 V) ÷ 0.02 A

Temperature sensor : RTD Pt100 or Pt1000 acc. to DIN IEC 751

Unit : °C, °F programmable

Measuring range : -40.0..+160.0 °C

Alarm outputs

Transistor : 14..30 V DC, max. 60 mA

Voltage drop : < 2V

MR switch over

Ri : >10 kΩ

MB1 active : U = 0..3 V DC

MB2 active : U = 12..30 V DC

Display : LCD-dot matrix, 3.8mm characters

Range : 2 lines 16 characters each

Case : head case / field case

Material : case polyamide with fiber glass PA6-GF/GK 15/15, front foil polyester

Dimensions : 100 x 100 x 60 mm (WxHxD)

Weight : max. 360 g

Connection : screw terminal with pressure plate,2.5 mm² flexible wire, 4 mm² single wire and plug-in cable for sensor

Protection class : IP65, terminals IP20 acc. to BGV A3

Martens 转换器 UNICON-LF 电导率转换器 Martens of the GHM GROUP