These instruments are compact, handy high-performance
digital insulation tester with an additional AC voltage measuring function.
DG525 & DG251 are in compliance with JIS C1302 1994.
| 1. |
Each instrument is capable of
switching the test voltages during insulation resistance measurement in the following 2
ranges.
Model DG525 : 500V DC/250V DC
Model DG251 : 250V DC/125V DC |
| 2. |
With both measuring functions, range
can be shifted to the optimize range according to the measurement value. |
| 3. |
The auto power OFF turns the power
off automatically in about 1 minute after power on even when the user forgets to switch
the power off after measurement. |
| 4. |
Backlight in provided for easy
readout, even in the dark. |
| 5. |
The data hold feature holds the
measurement value. |
| 6. |
When the built-in batteries run out,
the battery alarm display indicates battery replacement timing. |
| 1. |
TL-M54 (Test Probe) Red test lead
with amber plug (L/ ~ terminal) x 1
Black test lead with black plug (E/ ~ terminal) x 1 |
| 2. |
Instruction manual x 1 |
| 3. |
Battery 1.5V AA x 6 |
| A/D Converter: |
Operating system: Double
integration
Sampling rate: Approx. 2.5samplings/sec. |
| Display: |
LCD, max. 1999 |
| Over-input
indication: |
Only the highest digit shows
"1". |
| Measuring
terminals: |
MW: E, L ACV: ~, ~ |
Operating
temperature
/humidity range: |
0 ~ 40șC, <85% RH (with no condensation) |
Accuracy guaranteed
temperature
/humidity range: |
15 ~ 30șC, <85% RH (with no condensation) |
| Built-in batteries: |
1.5V LR6/AA size alkaline
batteries (x 6) |
| Battery life: |
When power is switched between
ON and OFF every minute in succession, Insulation resistance measurement: Approx. 60 hours
AC voltage measurement: Approx. 250hours |
| Battery alarm: |
LCD shows "B" marking
when battery voltage drops below 7V. |
| Auto power OFF
time: |
Approx. 1 minute after power ON |
| Data hold: |
Pressing HOLD switch holds
measurement value.
Data hold indicator:Yellow LED with 3mm dia. |
| Back-light lamp: |
Pressing LIGHT switch lights up
LCD backlight (green). |
| Dimensions &
weight: |
175 x 115 x 55mm. approx.
0.6kgs. |
* when indicating the center scale value of the MW range
Insulation Resistance
| Rated voltage |
DG525 |
500V DC/250V DC |
| DG251 |
250V DC/125V DC |
Measuring voltage
/current characteristics |
When measuring terminals are open, |
| DG525 |
500V DC range --- 600V (+20%max)
> 500V guaranteed at 500kW |
250V DC range --- 300V (+20%max)
> 250V guaranteed at 250kW |
| DG251 |
250V DC range --- 300V (+20%max)
> 250V guaranteed at 250kW |
125V DC range --- 150V (+20%max)
> 125V guaranteed at 125kW |
| When measuring terminals are shorted,
Approx. 1.5mA max. |
| Measuring ranges |
0~2MW/1~20MW/10~200MW/100~2000MW, auto range |
| Measuring accuracy |
2MW/20MW/200MW ranges:
Within(2% of reading+2digits)
2000MW range: Within(5% of reading+2digits) |
| Applied voltage indication |
Red LED with 5mm dia. |
|
AC Voltage
| Measuring ranges |
0 ~ 600V
max.
0 ~ 200V /10 ~ 600V, 2 auto range |
| Measuring accuracy |
Within
±(1% of reading+0.5% of range + 1digit)
Frequency: 50~400Hz |
| Input resistance |
1MW |
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Bhumika Enterprises
1301 Dundas Street West, Suite # 504,
Mississauga, Ontario, L5C 1C9, Canada
Ph: +1(647)
273 1281
FAX: +1(905)
615 9646
E-mail: info@bhumika.ca
Website: http://www.bhumika.ca
Technical Specifications are subject to change without
notice.
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All other trademarks are the ownership of their respective owners. |
