AMPTEC 620A series Explosive Safety Igniter Tester RS232C Operation
These instructions should provide a step-by-step how to operate a AMPTEC 620A series (620ES, 620BH, 620EH, 620VL,
620VN etc.) Explosive Safety Igniter Tester via the optically Isolated RS232C interface. An important note - all
manual
selected push button front panel ranges must first be de-selected
(popped out) prior to any RS232C remote operation.
The RS232C operation example(s) shown below is for an AMPTEC
620VL
Igniter Tester. For the AMPTEC 620VN press
the meter’s front panel remote RS232 button to pop out any previous selected resistance ranges. The RS232 remote
control process is essentially the same for all 620A series meter. Newer PC controllers (i.e. Windows 7 etc.) may not come
with an RS232C serial port but do offer a USB port. There are many low cost USB to serial converter cables available
(see below - item 1 and 2).
1. Plug USB-to-serial interface cable into computer (if direct serial-to-serial connection is not available).
2. Plug serial end of USB-to-serial cable into the AMPTEC
620VN Igniter Tester
unit.
3. Open serial communication software and select the correct communication channel.
4. Ensure that communication specifications are as follows:
·
9600 bits per second.
·
8 data bits.
·
No parity bit.
·
One (1) stop bit.
·
No flow control.
5. Start testing each range of the unit via the RS232C interface by typing in the following commands (commands are
case sensitive):
·
S
i. Should receive prompt “Single Read Mode Selected”.
ii.To have a reading displayed on the screen from Single Read Mode, type “R”.
·
r1
i. Should receive prompt “20 Ohm Range Selected”.
·
r2
·
r3
·
r4
i. Should receive prompt “200 K Ohm Range Selected”.
ii.This resistance range is valid for any resistance being measured that is less than 199.99 K Ohm.
·
r6
i. Should receive prompt “2 M Ohm Range Selected”.
ii.This resistance range is valid for any resistance being measured that is less than 1.9999 M Ohm.
continued next page
·
r0
I. All resistance ranges are “De-selected”.
ii.This resistance range is valid for any resistance being measured that is less than 19.999 Ohm.
i. Should receive prompt “200 Ohm Range Selected”.
ii.This resistance range is valid for any resistance being measured that is less than 199.99 Ohm.
i. Should receive prompt “2000 Ohm Range Selected”.
ii.This resistance range is valid for any resistance being measured that is less than 1999.9 Ohm.
i. Should receive prompt “20 K Ohm Range Selected”.
ii.This resistance range is valid for any resistance being measured that is less than 19.999 K Ohm.
·
r5
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