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HIGH VOLTAGE INSULATION RESISTANCE METER

DB625 High Voltage Megohmmeter Insulation Resistance Meter
DB625 High Voltage Megohmmeter Insulation Resistance Meter is designed for use in various applications such as testing insulation resistance of cables and testing leakage current in capacitors.
The instrument is microprocessor controlled. 
The menu driven bright back-lit LCD display enables quick, logical and easy operation.
The display can show the leakage current or insulation resistance as a function of time as an X-Y graph or a bar graph simulating an analogue meter. 
The bar graph can use auto-scaling or 8 fixed scales with two decades each.

The Megohmmeter can be programmed to automatically perform timed test sequences. 
Each sequence may consist of up to 12 test steps, either high current charging, normal charging,
or a measurement. Sequences may last up to 60 min.
High Voltage Megohmmeter Insulation Resistance Meter
DB625 High Voltage Megohmmeter Insulation Resistance Meter
Our Price: Contact us for pricing
Phone: 253-927-6186
866-318-6186
Fax: 253-927-6189
email: sales@hotektech.com

The high speed of the Megohmmeter: 45 msec between measurement results, give the possibility of implementing prediction intelligence in an external PC for very high-speed production test of capacitors

The high test speed is supported by the instruments in other ways: 
First of all by the low input impedance 10kOhm for test current above 10nA, and 1MOhm for test
current below 10nA. 
The special 10mA optional charge mode speeds up insulation testing of large capacitors significantly.

Automatic check of contact failure for capacitors and capacitive elements like cables is a feature implemented for high volume production.
The contact check does not increase the test time.

Specifications  Megohmmeter DB625:

RESISTANCE MEASUREMENTS:

  

Range:

10 kOhm to 1 POhm (dependent on test Voltage) 
(Peta = 1.000.000 Giga)

Accuracy:

Rx< 20 GOhm x Vtest: ± 2% of value
Rx> 20 GOHM x Vtest: ± Vtest/1pA in Ohm
max reading Vtest/0.1pA

DC CURRENT MEASUREMENTS:

  

Range:

1 pA to 1 mA

Accuracy:

±2% of value ±1pA

DISPLAY READING

  

Direct reading:

Current or Amperes, 3,5 digits

Bar Graph:

8 ranges with 2 decades per graph with fixed- or autoscaling

x – y Graph:

Current or resistance scale versus time scale

INPUT RESISTANCE:

10 kOhm for Itest> 10nA / 1 MOhm for I-test< 10nA

Discharge Resistance:

 100kOhm

TEST VOLTAGE

100kOhm

Range:

50 V to 5kV in 1 V steps

Accuracy:

±2% of value or ±1 Volt in un-calibrated mode

Stability:

±100 ppm/degree C
 

Source Resistance:

220 Ohm/ 1kOhm

Max currents:      Measurement

                         

2kV version 2/25/45 mA
5kV version 2/18mA

Switching:

Manually ON/OFF from front panel or controlled by a built-in timer, or by remote control.

TIMING:

Programmable Fast Charging: 
0 to 9999 msec (charge resistance 200 Ohm)

Programmable Measurement delay:

0 to 9999 msec

Discharge Time:

t = 0.1 x Cx (in µF) with Vtest decreasing to 1 % of test level

MEASURING SPEED:

  

Trig Mode:

One Measurement: <45 msec (excl. charging)

Average up to n = 100measurements: <45 + (N-1) x 40 msec (excl. charging)

Continuous Mode:

Direct Reading: 90 to 4000 msec depending on average

Bar Graph: Display update every 40 msec

STANDARD FITTED INTERFACES:

  

LIMITS:

5 built-in programmable limits on resistance or current

IEEE 488: (IEEE 488-1 and 2)

"Talker Only" and Talker/Listener" Modes. True sub-set of Standard protocol

RS232C:

Baud rate up to 19,200 Baud. Full two-way control/output

Control I/O:

Opto-coupler input / output 25 V/10mA. Trig, Measure END Signal, Trig Ready Signal, Data Ready Signal, Fault Signal, Limit Outputs

Ambient Temperature:

10 –40 degrees Celsius

Power:

90 – 130 and 200 – 260 V AC 50 – 60 Hz

DIMENSIONS:

  

Height:

140 mm/ 5.5 inch

Width:

438 mm/ 17.2 inch

Depth:

360 mm/ 14.2 inch

Weight:

14.9 kg/ 32.8 lbs.

ACCESSORIES SUPPLIED:

Line power connector, Two 1.5 m coax cables with H.T. BNC connectors

Brackets for 19" rack-mounting, Manual in English

Options:

  

Fixture for axial and radial components

  YES

Test probe with trig contact

  YES

 ALL SPECIFICATIONS SUBJECT TO CHANGES WITHOUT PRIOR NOTICE

Please email sales@hotektech.com or call 253-927-6186 if you are interested in a purchase, or
  need additional information.