Test & measurement home lab

$ echo "*IDN?" | nc 34465a 5025
Keysight Technologies,34465A,MY59008429,A.03.01-03.15-03.01-00.52-03-02
$ echo "MEAS:VOLT:DC? 10,0.001" | nc 34465a 5025
+1.62349138E-04
$ echo "SYST:ERR?" | nc 34465a 5025
+0,"No error"
$

$ python
>>> import socket
>>> ksaddr=('34465a', 5025)
>>> s=socket.socket(socket.AF_INET, socket.SOCK_STREAM)
>>> s.connect(ksaddr)
>>> s.sendall('meas:volt:dc? 10,0.001\n')
>>> data=s.recv(1024)
>>> data
'+7.33658297E-05\n'
>>> print data
+7.33658297E-05

>>> s.close()

• install pyvisa first - on Ubuntu 18.04

$ sudo apt-get install pyvisa

• on Oracle Solaris s11.4

# pip install pyvisa
Collecting pyvisa
  Downloading https://files.pythonhosted.org/packages/51/d1/fc21b45228718cde06b33b08761a6a9aa859dfe51dfbf07e81e0f209e776/PyVISA-1.10.1.tar.gz (6.8MB)
    100% |████████████████████████████████| 6.8MB 94kB/s
Requirement already satisfied (use --upgrade to upgrade): enum34 in /usr/lib/python2.7/vendor-packages (from pyvisa)
Installing collected packages: pyvisa
  Running setup.py install for pyvisa ... done
Successfully installed pyvisa-1.10.1
You are using pip version 8.1.2, however version 19.3.1 is available.
You should consider upgrading via the 'pip install --upgrade pip' command.
# pip install pyvisa-py
Collecting pyvisa-py
  Downloading https://files.pythonhosted.org/packages/7c/85/6f3170a31596d8e1ae55a108c07976da7ed2827c7a4328958fc242a88bc9/PyVISA-py-0.3.1.tar.gz (57kB)
    100% |████████████████████████████████| 61kB 953kB/s
Requirement already satisfied (use --upgrade to upgrade): pyvisa>=1.8 in /usr/lib/python2.7/site-packages (from pyvisa-py)
Requirement already satisfied (use --upgrade to upgrade): enum34 in /usr/lib/python2.7/vendor-packages (from pyvisa>=1.8->pyvisa-py)
Installing collected packages: pyvisa-py
  Running setup.py install for pyvisa-py ... done
Successfully installed pyvisa-py-0.3.1
You are using pip version 8.1.2, however version 19.3.1 is available.
You should consider upgrading via the 'pip install --upgrade pip' command.
#

• run simple program to acquire measured value

$ python
>>> import pyvisa
>>> rm = pyvisa.ResourceManager()        <--- work on Solaris, not on Ubuntu
>>> rm = pyvisa.ResourceManager('@py')   <--- works on both Solaris and Ubuntu
>>> inst = rm.open_resource('TCPIP0::34465a::inst0::INSTR')
>>> print (inst.query("*IDN?"))
Keysight Technologies,34465A,MY59008429,A.03.01-03.15-03.01-00.52-03-02

>>> print (inst.query("SYST:ERR?"))
+0,"No error"

>>> print(inst.query("MEAS:VOLT:DC? 10,0.001"))
+7.79228646E-01

>>> print(float(inst.query("MEAS:VOLT:DC? 100,0.00001")))
12.7884186

>>> data=inst.query("MEAS:VOLT:DC? 10,0.001")
>>> data
u'+1.99758447E-05\n'
>>>

• 2 channels
• channel 1: 0-30V/0-12A
• channel 2: 0-6V/0-3A

$ telnet 192.168.1.99 3000
Trying 192.168.1.99...
Connected to 192.168.1.99.
Escape character is '^]'.
MEASure:VOLTage:ALL?
0.000, 0.000
MEASure:CURRent:ALL?
0.000, 0.000
CHANnel:OUTPut:ALL?
0, 0
APP:VOLT?
14.600, 3.300
APP:CURR?
1.000,  1.000
VOLT:LIMIT:ALL?
31.000, 6.600
CURR:LIMIT:ALL?
12.100, 3.100
SYSTem:REMote
SYSTem:LOCal
INST:NSELect 2
VOLTage 3.000
CURRent 2.000
CHANnel:OUTPut 1
VOLT:LIMIT 4.000
VOLT:LIMIT MAX
APP:VOLT 14.000,3.300
APP:CURR 2.000,1.000
^]
telnet> q
Connection closed.

• 4 channels
• 200MHz bandwith

• port 1861
• LeCroy VICP protocol

• one-year 0,0035% accuracy (on 2DCV range)
• 4,3“ display
• USB, LAN/LXI
• USB host
• EasyDMM SW
• price w/ DPH: 22 506,- eshop.merici-pristroje.cz 21 676,-

• one-year 0,0035% accuracy (on 10DCV range)
• front & rear input terminals
• 4,3” display
• USB, LAN/LXI
• USB host
• BenchVue SW
• price w/ DPH: 31 823,- Farnell 30 202,- Micronix 31 212,-
• 3-year warranty

• one-year 0,0030% accuracy (on 10DCV range)
• front & rear input terminals
• 4,3” display
• USB, LAN/LXI
• USB host
• BenchVue SW
• price w/ DPH: 39 711,- Empos 38 163,- Distrelec € 1469,-
• 3-year warranty

• one-year 0,0025% accuracy, two-year 0,0030% accuracy (on 1DCV, 10DCV ranges)
• front & rear inputs (selected via front pushbutton)
• 5“ touchscreen display
• USB-TMC 2.0, LAN/LXI (optional RS232, GPIB)
• USB host (flash disk FAT32)
• user access to current protection fuse
• free KickStart SW
• 29 519,- (w/ DPH)
• 3-year warranty

• one-year 0,0035% accuracy (2DCV range)
• only front input terminals
• LCD mono display 256×64
• USB, LAN/LXI, RS232, GPIB
• USB host
• Ultra Sensor SW
• price w/ DPH: 22 414,- Empos 23 670,-

• one-year 0,0035%/0,0024% accuracy (10VDC range)
• only front input terminals
• LAN/LXI, RS232, GPIB, USB (8846A only)
• USB host
• price w/ DPH: 34 310,-/45 052,- Farnell 32 937,-/43 657,- Empos 33 505,-/-

• one-year 0,0035% accuracy (1DCV range)
• dual measurement vacuum fluorescent display
• USB, RS232 (optionally LAN, GPIB)
• price w/ DPH: 25 703,-
• 3-year warranty

• www.hotair.cz
• www.mikroshop.cz - Levenhuk 4ST 20x,40x 130mm