HP E1357A VXI 8-Channel 120-Ohm Strain Gage FET Multiplexer

Product Summary

The HP E1357A 120 Ohm strain gage FET multiplexer is a B-size, 1-slot, register-based VXI module. This relay multiplexer provides bridge completion and excitation voltage (4.6 V) circuitry for eight channels. Each multiplexer module consists of a B-size component card (labeled E1351-66201) and a screw terminal block that plugs onto the component card. The HP E1357A is functionally similar to the HP E1351A, E1352A, E1353A, and E1358A.

You can perform dynamic strain gage measurements with automatic conversions to engineering units on multiple multiplexer channels by sending SCPI commands to either the HP E1326B, or HP E1411B. Strain measurements supported by SCPI with the HP E1326B and E1411B DMMs include: Quarter, Bending, Half, Poisson Half, Bending Full, Poisson Full, Bending Poisson Full. The FET multiplexer cannot perform tension shunt nor compression shunt diagnostics.

Product Features

• Strain gage measurements with bridge completion
• +4.6 V excitation circuitry for bridge configurations
• Automatic conversions for bridge configurations
• Strain, voltage, current, and ohm measurements
• VXIplug&play frameworks are supported per the Instrument Drivers information listed below

Note: Configuration software that allows you to easily select compatible interfaces, controller platforms, and VXI test system components is available on CD ROM. Order the "Test System and VXI Products Catalog and CD ROM" from the Test & Measurement Catalogs available on this web site.

Product Specifications

Strain Gage Resolution
Bridge		Bridge Excitation Voltage (Vs)
Configuration	5 V		1 V		0.1 V
-------------	------------	------------	-----------
Full		0.01 µ units	0.05 µ units	0.5 µ units
1/2		0.02 µ units	0.1 µ units	1 µ units
1/4		0.04 µ units	0.2 µ units	2 µ units

Bridge excitation requirements: Use the internal 4.6 V excitation power supply or external supply such as the HP 6214C.
Max ripple and noise requirement for excitation voltage: 1 mV peak-to-peak (20 Hz to 20 MHz)
Input
Maximum voltage (any 
  terminal to any other
  terminal or chassis):
     DC:       16 Vpk 
     AC rms:   16 Vpk 
Maximum current (per 
  channel common, 
  non-inductive): 1 mA 
Maximum power per 
  channel:        n/a

DC
Maximum thermal 
offset per channel, 
differential Hi-Lo:        25 µV (0 to 28°C),
                           250 µV (28 to 55°C),
Closed channel 
resistance:                <3.1 kOhm
Insulation resistance 
(between any two points):  10E8 Ohm, 10E3 Ohm ±10% guard to chassis
Insultation resistance 
(Hi to Lo, power off):     >1 kOhm for |Vin| <14 V,
                            >220 Ohm for |Vin| >14 V

AC
Minimum bandwidth 
(-3 dB, 50 Ohm source/ load): 500 kHz (1 MOhm || 10 pF termination) 
Crosstalk (channel-to-channel): 
  100 kHz:                    n/a 
  10 MHz:                     n/a 
  Both:                       n/a 
Closed channel 
capacitance:                  <2000 pF Hi/Lo-Chassis, <200 pF Hi-Lo

General Characteristics
Relays:                   FETs 
                          Break-before-make 
                          Relays open on power down
                          Relays open on power up 

Minimum relay life: 
  No load:                unlimited 
  Rated load:             unlimited 
Reference junction 
measurement accuracy 
(18 to 28 °C operating):  n/a 
Strain gage excitation:   n/a 
Screw terminal wire size: 16 to 26 AWG (1.5, 1.2, 0.9, 0.75, 0.5 mm) 
Strain gage excitation:   4.63 V ±10%, <400 mA
Scanning rate:            13,000 channels/s typ.

VXI Characteristics
VXI device type:        Register-based,A16, slave only
Size:                   B
Slots:                  1 
Connectors:             P1
Shared memory:          None
VXI busses:             None
C-size compatibility:   Requires E1403B

Instrument Drivers
Click here for driver 
availability and downloading.
Command module
 firmware:               ROM 
Command module 
 firmware rev:      A.03
I-SCPI Win 3.1:          Yes
I-SCPI Series 700:       Yes
C-SCPI LynxOS:           Yes
C-SCPI Series 700:       Yes
HP VEE Drivers:          Yes
VXIplug&play Win 
Framework:               Yes
VXIplug&play Win95/NT 
Framework:               Yes
VXIplug&play HP-UX 
Framework:               No (not available at time of publication)


Module Current
            IPM           IDM 
+5 V:       0.53         0.01
+12 V:      0.13         0.01



Cooling/Slot
Watt/slot:  2.00
deltaP mm H2O:  0.02
Air flow liter/s:  0.10

Product Ordering Information

HP E1357A	VXI 8-Channel 120-Ohm Strain Gage FET Multiplexer
   Opt 0B3	Service manual  
   Opt W01	3-yr. return to HP to 1-yr. on-site warranty

HP E1357-80001	Extra screw terminal block
HP E1411-80001	Digital FET mux-to-external DMM cable

HP E1357A Technical Specifications Datasheet

If you do not have the Adobe Acrobat Reader necessary for viewing this documentation, download your Free Acrobat Reader now.

To help you make the right instrument choices

Your Field Sales Engineer is ready to answer your questions about specifications, applications and ordering. Find your Field Sales Engineer at your Local Sales Office.

[Hewlett-Packard] [Test & Measurement] [Product Information] [Model Number Index]

Contact HP Test & Measurement. (c) Copyright 1994, 1995, 1996, 1997 Hewlett-Packard Company.

Page Updated: Thursday June 19 16:15:53 UTC 1997