RCO Sales - Weschler Instruments -Analog Instruments

A Specialty Distributor

Call our knowledgable
Staff with your application
questions.

Weschler Instruments - Analog Instruments:

Application:
Type K-221 instruments are the lowest priced of the Weschler switchboard instruments, yet they meet the same rigid performance specifications as the more expensive types. These instruments are recommended for use where they can be read from a distance of less than twelve feet. The Type K-221 is used most effectively on industrial apparatus such as mill drives, generator sets, power rectifiers and converters. It is most practical for electric utility uses such as in substations where readings are taken only occasionally, but where the ultimate in reliability is required.
This is the lowest priced instrument which should ever be used where the failure of an instrument circuit could affect an associated critical circuit. This is usually the case where current and potential transformers or transducers are shared with devices having control or protective functions.

Accuracy: 1% of full scale deflection.
Case Size: 4.5 inch class
Insulation Rating: 800 Volts
Shielding: Magnetically shielded.
Scale Length: 4 inches for 100 degrees rotation
Net Weight: 3 to 5 pounds, exclusive of accessories
Burdens: 5A ac Ammeter - .44 va
AC Wattmeter
Current coil (5A) - 1.95 va
Potential coil - 3.6 va
150v ac voltmeter - 1.92 va
1ma dc - 12ohms

Function	Ranges	Type	Mechanism Type
DC Microammeter	50ua to 1 ma	KX-221	permanent magnet moving coil
DC Milliammeter	1 ma to 1 A	KX-221	permanent magnet moving coil
DC Ammeter	1 A to 50 A	KX-221	permanent magnet moving coil
DC Millivoltmeter	50mv to 1 V	KX-221	permanent magnet moving coil
DC Voltmeter	1 V to 750V	KX-221	permanent magnet moving coil

Ac Milliammeter	10ma to 1A	KA-221	repulsion iron-valve
Ac Ammeter	1A to 50A	KA-221	repulsion iron-valve
Ac Voltmeter	15V to 750V	KA-221	repulsion iron-valve
Frequency Meter	50, 60, 400Hz	KR3-241	self-contained transducer

Ac Wattmeter	.5A to 10A	KY-221	dynamometer
Ac Varmeter	5A to 10A	KY-221	dynamometer
Power Factor Meter	0.5 to 1 to 0.5	KJ-221	self-contained transducer

Resistance Thermometer	100 to 200F	KX-221	self-contained transducer

To find out about the many more products offered by Weschler,
select "Info Request" from the menu on the left.

| (800) 654-4636 | (330) 725-3705 | Fax (330) 723-3448 | Fax (800) 437-8755 |
sales@rcosales.com

P.O.Box 1198
Medina, Ohio 44258

RCO Sales - Weschler Instruments -Analog Instruments