Inline process refractometer

iPR-EX

PDF data sheet
  • Ex-protection version of the iPR-B3
  • Suitable for all applications in explosion-proof areas
  • Certified according to European Classification ATEX II 1 G Ex ia IIC T4 Ga
  • Permanent inline real-time measurement of the concentration of dissolved solids
Automatic process refractometer iPR - EX

Fully automatic process refractometer for direct measurement of dissolved solids, process monitoring and control. Principle of the critical-angle refractometer with sapphire prism and high-resolution photodiode array; no influence of color and opacity of the medium on the measuring result. Measuring head made of stainless steel, chemical resistant, food safe, hygienic, for process temperatures up to 120 °C (with connected water cooling) and pressures up to 1 MPa.

The explosion protection version of the process refractometer consists of an intrinsically safe, single-certified sensor, which is installed in the hazardous area. The measuring signals are routed to the non-explosive area via a special cable (maximum length 500 m) and connected to 4 zener barriers. The connection to the central control system is realized with a RTU Modbus or serial RS 485 interface.

Alternatively, Schmidt + Haensch offers a control unit, which is also installed outside the hazardous area. The 7 “touch screen is individually configurable. The measured data can be output via Ethernet as a 24 V or 4-20 mA signal or control a relay.

For data transmission to other systems, serial RS 232, 485 interfaces, a CAN bus or UPC server are available.

Up to two measuring heads can be connected at the same time.

specifications

Main specifications

Standards ATEX II 1 G Ex ia IIC T4 Ga
IEC in preparation
Measuring range 1,32000 – 1,52000 nD
Resolution 0,00001 nD
Precision ±0,00014 nD

Temperature

Ambient temperature -20 °C to +65 °C
Process Temperature -20°C to +120 °C*
Temperature resolution/precision 0.01°C / ±0.2°C (0° to 70°C)
Process pressure 0 to 1 MPa (145 psi, 10 bar)

Additional informationen

Prism Sapphire
Wetted parts Sapphire (prism), stainless steel, FKM
Protection class IP 67
Light source / wavelength LED, 589 nm
Interface, switches ModBus, RS485 and 24V with external Zener barriers
Dimensions 330mm x 149mm (length x diameter)
Weight 9600g

Control unit

Operation 1 and 2 measuring headsets are available, connectable with built-in Zener barriers
Display 7" Touchscreen, 800x480 pixel
Interface Ethernet
DIN rail parts (expandable) Switch inputs (24 V) and outputs (24 V / relay / 4-20mA) / Communication (RS232 / RS485), CAN, UPC Server
Highlights Configuration of measuring head and outputs / Adjust switching thresholds and analog outputs /
Concentration and other scales user programmable
Power 85V ... 265V 50/60Hz
Housing IP65

* with cooling by cooler circuit only, electronic max. +65°C

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Dear valued customer and business friend,

We are taking all possible measures to secure the health of our employees as well as our customers.

As we have already informed you, Schmidt+Haensch remains fully operational.

We are organising whenever possible work from home offices. Our production lines are continuously producing and our supply chains are so far secured.

We are most interested to offer our services as usual. Instead of personal visits we have built up internet communications in order to help you remotely.

All our contacts as well as phone numbers remain accessible.

For service issues please do not hesitate to contact us via e-mail to service@schmidt-haensch.de or telephone under +49 (030) 417 072 – 41 / - 42

For sales inquiries please contact us via e-mail to sales@schmidt-haensch.de or call our sales engineers.

We wish you to stay well and healthy.

Let us try to overcome these most exceptional circumstances by looking after each other with the necessary care and distance.

Best regards

Mathis Kuchejda

-President-

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