HP E1347A VXI 16-Channel Thermocouple Compensation, Low-Offset Relay Multiplexer

Product Summary

The HP E1347A general-purpose reed relay multiplexer is a B-size, 1-slot, register-based VXI module with thermocouple compensation. It switches 16 channels of high, low, and guard each. The module has low thermal offset performance. The multiplexer module consists of a B-size component card (labeled E1345-66201) and a screw terminal block that plugs onto the component card. The HP E1347A is functionally similar to the HP E1345A.

Using the HP E1326B or HP E1411B DMMs, the HP E1347A performs channel scanning with automatic conversions for many thermocouple types. Temperature measurements are made with automatic cold junction compensation. The card, in conjunction with HP VXI DMMs, also measure voltage, current, and 2- and 4-wire ohms.

C-size Adapter
For installing the HP E1347A in a C-size mainframe, the HP E1403B active adapter is recommended.

Product Features

• Low thermal offset reed relays, <4 µV
• Built-in thermistor reference junction
• 16-channel 3-wire or 8-channel 4-wire multiplexer
• Includes HP QUIC easy-to-use terminal block
• Channel scanning with HP DMMs Description
• 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

Input
DC:
  Maximum voltage (any 
  terminal to any other
  terminal or chassis): 120 Vdc 
AC rms: 
  Maximum voltage (any 
  terminal to any other 
  terminal or chassis): 170 Vrms 
  Maximum current (per 
  channel common, 
  non-inductive):       50 mA 
  Maximum power per 
  channel:              1 VA

DC
Maximum thermal 
offset per channel, 
differential Hi-Lo:        4 µV 
Closed channel 
resistance:                100 Ohm ±10% 
Insulation resistance 
(between any two points):  10E9 Ohm 
Insultation resistance 
(Hi to Lo, power off):     n/a

AC
Minimum bandwidth 
(-3 dB, 50 Ohm source/ load): 10 MHz (protection resistors shorted) 
Crosstalk (channel-to-channel): 
  100 kHz:                    -80 dB 
  10 MHz:                     -40 dB 
  Both:                       n/a 
Closed channel
capacitance:                  <150 pF Hi-Lo, <150 pF Lo-Guard, 
                              <2000 pF Guard-Chassis

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

Minimum relay life: 
  No load:                10E8 operations 
  Rated load:             10E7 operations 
Reference junction 
measurement accuracy 
(18 to 28 °C operating):  0.3°C
Strain gage excitation:   n/a 
Screw terminal wire size: 16 to 26 AWG (1.5, 1.2, 0.9, 0.75, 0.5 mm) 
Scanning rate:            600 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.06
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:           0.2       0.01
+12 V:          0.13      0.01



Cooling/Slot
Watt/slot:  1.00
deltaP mm H2O:  0.02
Air flow liter/s:  0.10

Product Ordering Information

HP E1347A	VXI 16-Channel Thermocouple Compensation, Low-Offset Relay Multiplexer
   Opt 0B3	Service manual  
   Opt ABJ	Japan - Japanese localization  
   Opt W01	3-yr. return to HP to 1-yr. on-site warranty

HP E1347-80001	Extra screw terminal block

HPE1347A Technical Specifications Datasheet

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Page Updated: Thursday June 19 16:15:23 UTC 1997