Operating Instructions for Helical Flow Meters Type SRZ 1 General Information 1.1 At a Glance The SRZ Helical flow meters are positive displacement meters with built-in hall sensors. They provide high resolution and reverse-flow detection. The SRZ meters are perfect for media with high viscosity (30 to 10 x 10 mm²/s) featuring high accuracy and low pressure drop.
Operating Instructions for Helical Flow Meters Type SRZ 1.3 Ordering Codes and Accessories 1.3.1 Ordering Code SRZ ** –**–* *–* O-ring material V = Viton T = Teflon Pickup A, C, R= integral dual pickup HR = integral dual high-resolution pickup Material, connections ST = standard stainless steel, G 3/4"...
Operating Instructions for Helical Flow Meters Type SRZ 2 Getting started 2.1 Unpacking Verify that you have received the following items: • SRZ Helical flow meter • Operational Manual 2.2 Operating Elements 1 = electrical Connector 2 = flow input 3 = flow output 2.3 Pin Assignments Type...
Operating Instructions for Helical Flow Meters Type SRZ 3 Installation Note All installations murst be carried out by qualified service personnel. 3.1 Mechanical Make sure the measuring range of the meter cannot be exceeded by more than 20%. Purge your pipe system before installing the SRZ.
Operating Instructions for Helical Flow Meters Type SRZ 3.2 Electrical Make sure that the flow meter is grounded. Note The housing of the SRZ* is connected to the shield of the cable. In bigger systems a separate grounding of the meter might be required for avoiding high currents in the cable shield. In that case the shield might be left open or grounded via a capacitance of e.
Operating Instructions for Helical Flow Meters Type SRZ 4 Operation The SRZ* is ready to use and does not require any special settings. After applying the supply voltage the unit immediately provides an output signal proporional to the flow. 4.1 Evaluation The K-factor is individually determined for each SRZ, this factor specifies the exact pulse rate per litre.
If there is no flow over a longer period, the SRZ* should be emptied and cleaned. This is especially important if curing media like paints are measured. For recalibration and test, please contact your nearest dealer or directly KEM. For the addresses see chapter 6.6 5.2 Trouble shooting...
Operating Instructions for Helical Flow Meters Type SRZ 6 Listings 6.1 Warranty KEM warrants material and production for a period of 18 months after installation and start up, max. 24 months from delivery date. 6.2 Declaration of conformity See separate sheet 6.3 Technical Data...
Operating Instructions for Helical Flow Meters Type SRZ 6.3.3 Ex Supply Data Supply circuit (pin 1 and 3) Voltage Ui = DC 30V Current Ii = 120mA Power Pi = 850mW effective internal capacitance Ci = 8 nF Signal current ciruit push/pull (pin 4 and 3) Voltage Ui = 30 V Current Ii = 24.6 mA Power...