VARIMETER PRO Universal measuring relays One device, many functions Our experience. Your safety.

VARIMETER PRO: The multifunctional measuring relay Complex processes in automation, process and industrial building systems, together with increasing demands in energy and environmental engineering require high operating reliability and permanent availability of the system. The universal measuring relays MK 9300N / MH 9300 of the VARIMETER PRO series monitor up to 9 different parameters simultaneously. Quite simply and without much wiring effort. Whether simultaneous overvoltage/undervoltage, voltage asymmetry, overcurrent/undercurrent, cos phi, active power, apparent power and reactive power,...

Function principle Selecting measuring functions Active power Reactive power Apparent power Additional functions: varimeter DOLD MK9300 Error memory Time delay Load current/Standby current principle 0063630 Start-up delay Example of advanced warning and alarm message Phase sequence Defining measured variables and limit values Example of a common application Asymmetry (unbalance) Allocation of the measuring functions to the outputs Each relay can be assigned up to 9 measured variables. If in this example the measurement lies outside the limit values of voltage or frequency or asymmetry relay 1...

Maximum output function for your application Precise monitoring and diagnosis in machines and plants has gained increasing significance over the past years. The early detection of impending failures and preventive maintenance prevent costly damages. The VARIMETER PRO is the basis for reliable monitoring. Refrigeration lorry As user you will benefit from the operating reliability and high availability of your system. Connecting the refrigeration unit of the lorry to the mains during loading and unloading to preserve the vehicle bat­ tery. } Solution: Monitoring for correct phase sequence of the...

Mill drives Large drives such as grain or cement­mills often still use slipring rotor motors. } Solution: Employing a frequency monitor to control the ramp-up. } Advantage: A soft start of the working equipment pre­ serves the mechanical drive elements and prevents current peaks in the feeding mains. Fan drives Fans and blowers are often driven via V-belts. A torn V-belt or clogging of the filter interrupts the continuous flow of the delivery medium. } Solution: Monitoring for underload with cos guard. } Advantage: Dispensing with external sensors, e.g. pres­ sure transmitters. Quick correction...

Technical data ¡ According to EN 60255,VDE 0435 ¡ Voltage monitoring (1-phase and 3-phase) ¡ Current monitoring ¡ Frequency monitoring ¡ Phase angles cos phi ¡ Phase sequence, phase failure, asymmetry ¡ Active, reactive and apparent power ¡ Startup delay ¡ Response delay ¡ Adjustable hysteresis at MH 9300 for Relay 1 / Relay 2 separately adjustable ¡ Error memory ¡ LCD display for the current measured values ¡ Relay function load current/standby current selectable ¡ Optional with plug-in terminal blocks for quick device exchange - with screw terminals - with cage clamp terminals 9300N: 1 changeover...

Device setting Display for output relay "Rel.2" active Error memory Relay 1 activated Display for output relay "Rel.1" active Error memory Relay 2 activated Sp Switching Functions / Measured Values Switching to operating mode Input (3...6 s) Switching to operating mode Display (Run) (3...6 s) Comparison Flexibility – Price Monitoring functions The right solution for each requirement: The VARIMETER PRO from DOLD is unbeatable in the price-performance ratio if several monitoring functions shall be carried out simultaneously. DOLD offers the perfect solution as well for all monofunctional measuring...

Our experience. Your safety. The right solution for each application A monofunctional device is the ideal solution if only one measurement needs to be monitored. However, if different parameters need to be monitored at the same time, the multifunctional devices from DOLD are the first choice in terms of flexibility and price-performance ratio. measured variable measured variable measured variable measured variable Examples for additional innovations for your safe complete solution: Insulation and differential current monitors Time control technique Fault annunciators Wherever machines need to...