Leading Manufacturer of 100a micro ohm meter, contact resistance meter crm 200b+, winding resistance meter, contact resistance ohm meter, 100b micro ohm meter and crm 100c micro ohm meter from Pune.
CRM 200B+ -is a battery operated instrument with facility of Printing the results with Thermal printer
We are offering Contact Resistance Meter to our clients.
Features:
Lightweight meters that directly measures & displays micro-ohm values
Works reliably in live EHV switchyards up to 765 kV
Typically used for contact resistance of circuit breakers, isolators, bus bar joints, earth switch joints etc.
100A / 200A DC injection
Uses Kelvin's 4 wire measurement principle
Direct readout of test current and micro-ohms on display
Easy to connect and use
Battery operated
Simple operation
Tests can be conducted even by technicians
Inbuilt memory
Auto Ranging
PC downloading & analysis including trend analysis possible with C data CRM software
Inbuilt real time clock, memory, and printer
Test time stamping on each record enables time references for future use
Report can be generated in software and cab be exported to PDF or Microsoft excel
Enclosed in ultra-rugged IP67 class hard molded case
All models are supplied with rugged calibrated test lead suitable for 4 wire measurement
The instrument is supplied with CData CRM software CD, calibration certificate, Accessories and test lead suitable for testing of EHV class circuit breaker
Can measure DC winding resistance of large rotating machines, highly inductive test objects like Transformer, Generators, and Motors etc.
50 A DC current makes it possible to measure low resistances with high accuracy.
One time connection to either all windings of primary and/or secondary. Simultaneous measurement reduces connection and measurement time.
Change in winding resistance, short or open windings can be detected from measured values.
Automatic temperature measurement and temperature corrected value calculation.
Specification Shutdown of power source on Over voltage, Over current, Over temperature
TRM 50/ TRM 50+ -
No of Channels 3/6 Current Channels, 3/6 Voltage Channels, 1 temperature Channel
Connections One-time connection to primary or secondary winding of transformer
Current Ranges 50A, 40A, 25A, 10A, 5A, 1A, 100mA, 10mA
Resistance Ranges Up to 2000 (Auto-ranging)
Resolution 4 1/2 digit
Accuracy Value +- 0.5% +- 5 counts
Open Circuit Voltage 50 V
Demagnetization Facility Yes
Display 5.7" TFT display with touch screen
Printer 58 mm, Inbuilt thermal printer
Communication Port Ethernet for PC communication
Data Port USB for external memory stick connection
External Control Possible via Notebook PC through Ethernet port and software
Temperature measurement Range 0 to 100 deg, Accuracy +- 1 deg, Resolution 0.1deg
Temperature correction For Aluminium Copper
Temperature Input Channel Compatible to accept RTD input
User Interface Resistive touch screen
Back EMF Protection Yes. Automatic protection after measurement and during accidental disconnection of the current path. Protection operates even if Mains supply fails.
Discharge Facility Indication Automatic Discharge of DUT messages on screen
Tap Changer Test Detects discontinuity during tap changer test
OLTC Test Facility (Optional) OLTC test facility with current v/s time graph, Single or Three Phases simultaneously. Available in control through PC option only.
OLTC current Ranges 50A, 40A, 25A, 10A, 5A
Indications Polarity reversal, Test connection continuity, and discharge
Diagnostics Check At power On instrument does self-check of channels and shows the message
Test Leads Measuring leads, AC supply, earth leads and temperature sensor lead
Operating Environment -10 DegreeC to 50 DegreeC, 95% RH (non-condensing)
Heat Run test Yes
Delta connection Measurement Values of each arm of delta winding is calculated and displayed
One side earthing Instrument is able to do the measurement with one side earthing (with Neutral earthing)
Input Supply 110V AC +-15% 50/60 Hz +-10% Or 220V AC +-15% 50/60 Hz +-10%.
