Table B-1 Specifications
Accuracy:
(for 1 year @25°C ± 10°C)
20 Ohm range - 20K Ohm ranges . . . . . . . . . . . . ±0.02% of reading ±0.02% of range
200K Ohm ranges . . . . . . . . . . . . . . . . . . . . . . . . ±0.02% of reading ±0.05% of range
2.0 MOhm ranges. . . . . . . . . . . . . . . . . . . . . . . .
Temperature Range
Operating
0°C to 50°C
Storage
-10°C to 70°C
Temperature Coefficient
20 ohm through 200 ohm ranges
±0.002% per °C (from 0°C-15EC and 35°C-50°C)
2.0 Megohm range ±0.01% per °C (from 0°C-15EC and 35°C-50°C)
Instrument Display
. . (20,000 count) 4½ digit Super Bright Light Emitting Diodes (LED)
Over-Range Indication
. . . . . . . . . . . . . . . . ( select next higher range) 620VN Display flashes
Measurement Update Rate
. . . . . Approximately 300ms
Open Circuit Current Source Compliance Voltage
. . . . . clamped at ~1.6 volts
DC Power -
The AMPTEC 620VN
safety meter is normally configured with (2 Stage Isolation) OP247
Isolated Continuous Operating Power .
Remote Control Interface
- The AMPTEC 620VN
safety meter is normally configured with the option
“232” an optically Isolated Serial Interface. It that allows computer/controller to remotely send I/O
commands that make the 620VN change ranges to the desired range and give back resistance readings via a
rear panel RS232C interface/connector. See section in this manual for available I/O commands and format
detail.
Dimensions
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.0" (23cm) W x 9.0" (23cm) D x 3.0" (8cm) H
Weight
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4
lbs net; 10 lbs shipping (without transit case)
± 1.0 % of reading ± 0.2% of range
AMPTEC 620VN EXPLOSIVE SAFETY
IGNITER TESTER - SPECIFICATIONS
620VN Resistance Range / Nominal Current/Failsafe Current
and Display Resolution Table
1 m
W
10 m
W
0.1
W
8 mA
5 mA
500 uA
50 uA
5 uA
0.5 uA
0.5 uA
8 mA
8 mA
8 mA
8 mA
8 mA
1
W
10
W
100
W
Resistance Range
Test Current
Fail Safe Current
Ohms Resolution
20
W
200
W
2000
W
2 M
W
20 K
W
200K
W
Continuous Decade Resistance Ranges (No Gaps) from 20.0 Ohms to 2.0 Megohms Fullscale
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