The Megohmmeter Model 1050 is a 1000V Digital/Analog Insulation Tester. It is designed to facilitate testing by incorporating automatic measurement features and user friendly functions. The True Megohmmeter^® Model 1050 provides test voltage combinations of 50V, 100V, 250V, 500V and 1000V.

Measurements are displayed on a large dual-display LCD with bargraph for quick viewing of changes or trends.

The Model 1050 automatically provides the DAR and PI ratios directly on the display. User defined PI time intervals may also be programmed. The user may even select DAR or PI functions before the test, and the megohmmeter will stop at the appropriate time and display the results.

An automatic test inhibitor prevents testing on live circuits above 25V and discharge test voltage may be displayed.

A memory feature permits storage, recalling and displaying of resistance values taken at user specified intervals during a test.

Specifications:

AC/DC Voltage Measurement
Range	1 to 1000V
Accuracy	±(1% R + 3V)
Resolution	1 to 99.9V: 0.1V 100 to 1000V: 1V
Frequency Range	DC and 16 to 65Hz
Input Impedance	750kΩ approx.
Insulation Measurement
Test Voltage / Resistance Range	50V: 2kΩ to 200GΩ 100V: 4kΩ to 400GΩ 250V: 10kΩ to 1TΩ 500V: 20kΩ to 2TΩ 1000V: 40kΩ to 4TΩ
Measurement Accuracy	2kΩ to 39.99GΩ: ±(5%R + 3ct) 40.0GΩ 4TΩ: ±(15%R + 10ct)
Auto Discharge	Discharge time < 2s/µF from Vtest to 25V
Live Circuit Indicator	Inhibit test if terminal voltage > 25V prior to initialization of test
Resistance Measurement
Range	0.01Ω to 399.9kΩ
Accuracy	± (3%R + 3ct) at >4kΩ
Open Circuit Voltage	Approximately 12.4V DC
Short Circuit Current	<6mA DC
Continuity Measurement
Range	0.01 to 39.99Ω
Accuracy	± (3%R + 4ct) with lead compensation
Open Circuit Voltage	12.4V DC
Short Circuit Current	≥ 200mA DC from 0.01 to 20.00Ω
General Features
Programmable Alarm	Yes
DAR – PI	Yes
Ramp Mode	No
Step Mode	No
Capacitance Measurement	0.05nf to 4.999µf, Accuracy: ± (10%R + 1ct)
Memory	20 Readings
Power Supply	Eight 1.5V C cell batteries (included)
Battery Life	≥ 21000 IR tests at 1000V into 1MΩ with a duty cycle of 5s on and 20s off; ≥ 16,000 R tests of 1Ω with a duty cycle of 5s on and 20s off
Charging Time	4.5 hours approximately
Dimensions	9.45 x 7.28 x 4.33” (240 x 185 x 110mm)
Weight	7.5 lbs (3.4kg)
Altitude Operating	6562' (2000m)
Operating Temperature	14° to +131°F (-10° to +55°C) ≤80% RH
Storage Temperature	-40° to +158°F (-40° to +70°C) ≤90% RH
IP Rating	IP 54
Safety Compliance	EN 61010-1, EN 61557, 600V CAT III, Pollution Degree 2

BOPANA ARGA PRIMA JAYA

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